{"id":208,"date":"2026-02-01T17:11:31","date_gmt":"2026-02-01T09:11:31","guid":{"rendered":"http:\/\/47.100.165.17\/wordpress\/?p=208"},"modified":"2026-02-01T17:11:32","modified_gmt":"2026-02-01T09:11:32","slug":"%e3%80%90mysql%e3%80%91%e7%94%a8%e6%88%b7%e7%ae%a1%e7%90%86%e4%b8%8e%e5%ae%89%e5%85%a8%e5%ae%9e%e8%b7%b5","status":"publish","type":"post","link":"https:\/\/yunyanglib.cn\/?p=208","title":{"rendered":"\u3010MySQL\u3011\u7528\u6237\u7ba1\u7406\u4e0e\u5b89\u5168\u5b9e\u8df5"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\" id=\"D0Ro6\">1 MySQL\u7528\u6237\u7ba1\u7406\u5b9e\u64cd\u6307\u5357<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"tONwf\">1.1 \u521b\u5efa\u7528\u6237<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u5cca1759\">\u521b\u5efa\u672c\u5730\u7528\u6237\u7684\u57fa\u7840\u8bed\u6cd5\uff1a<\/p>\n\n\n\n<pre id=\"xQyBX\" class=\"wp-block-code\"><code>CREATE USER 'martin'@'localhost' IDENTIFIED BY 'password';<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ue27e9bf8\">\u82e5\u9700\u4e3a\u540c\u4e8b\u521b\u5efamartin\u5e93\u7684\u8fdc\u7a0b\u53ea\u8bfb\u7528\u6237\uff08IP\u4e3a192.168.1.3\uff09\uff0c\u53ef\u6267\u884c\uff1a<\/p>\n\n\n\n<pre id=\"ninz9\" class=\"wp-block-code\"><code>CREATE USER 'martin_r'@'192.168.1.3' IDENTIFIED BY 'password';<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u8bd51e11\">\u82e5\u9700\u5141\u8bb8\u67d0\u4e00\u7f51\u6bb5\uff08\u5982192.168.1.%\uff09\u7684\u5ba2\u6237\u7aef\u8bbf\u95ee\uff0c\u53ef\u4f7f\u7528\u901a\u914d\u7b26\uff1a<\/p>\n\n\n\n<pre id=\"XfwMh\" class=\"wp-block-code\"><code>CREATE USER 'martin_r'@'192.168.1.%' IDENTIFIED BY 'password';<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"bCjUX\">1.2 \u67e5\u8be2\u7528\u6237<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u358ab11a\">\u67e5\u770b\u5f53\u524d\u6570\u636e\u5e93\u4e2d\u6240\u6709\u7528\u6237\u53ca\u5bf9\u5e94\u7684\u4e3b\u673a\u4fe1\u606f\uff1a<\/p>\n\n\n\n<pre id=\"SKChT\" class=\"wp-block-code\"><code>select user,host from mysql.user;<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"I4o94\">1.3 \u5220\u9664\u7528\u6237<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u9c01bca7\">\u5220\u9664\u6307\u5b9a\u7528\u6237\uff08\u9700\u7cbe\u786e\u5339\u914d\u7528\u6237\u540d\u548c\u4e3b\u673a\uff09\uff1a<\/p>\n\n\n\n<pre id=\"sb2Un\" class=\"wp-block-code\"><code>DROP USER 'martin_r'@'192.168.1.%';<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"uF1Rh\">2 MySQL\u6743\u9650\u63a7\u5236\u7b56\u7565<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"D4ki1\">2.1 \u6743\u9650\u5c42\u7ea7\u5206\u7c7b<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5168\u5c40\u6743\u9650<\/strong>\uff1a\u8986\u76d6\u6574\u4e2a\u6570\u636e\u5e93\u7cfb\u7edf\u7684\u64cd\u4f5c\u6743\u9650\uff08\u5982\u521b\u5efa\/\u5220\u9664\u6570\u636e\u5e93\u3001\u4fee\u6539\u7cfb\u7edf\u914d\u7f6e\u7b49\uff09\uff0c\u4ec5\u6388\u4e88\u6838\u5fc3\u7cfb\u7edf\u7ba1\u7406\u5458\u3002<\/li>\n\n\n\n<li><strong>\u6570\u636e\u5e93\u6743\u9650<\/strong>\uff1a\u9488\u5bf9\u5355\u4e2a\u6570\u636e\u5e93\u7684\u8bbf\u95ee\u63a7\u5236\uff08\u5982\u6570\u636e\u8bfb\u5199\uff09\uff0c\u6309\u804c\u8d23\u5206\u914d\u4ee5\u4fdd\u62a4\u654f\u611f\u4fe1\u606f\u3002<\/li>\n\n\n\n<li><strong>\u8868\/\u5217\u6743\u9650<\/strong>\uff1a\u6700\u7ec6\u7c92\u5ea6\u7684\u6743\u9650\u8bbe\u7f6e\uff0c\u53ef\u9650\u5236\u5bf9\u7279\u5b9a\u8868\u6216\u5217\u7684\u8bbf\u95ee\uff08\u4f8b\u5982\uff1a\u4ec5\u5141\u8bb8\u9500\u552e\u56e2\u961f\u67e5\u770b\u5ba2\u6237\u8054\u7cfb\u65b9\u5f0f\uff0c\u7981\u6b62\u8bbf\u95ee\u652f\u4ed8\u8bb0\u5f55\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"JQ8uj\">2.2 \u5e38\u7528\u6743\u9650\u67e5\u8be2<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u9a59229a\">\u67e5\u770bMySQL\u652f\u6301\u7684\u6240\u6709\u6743\u9650\u7c7b\u578b\uff1a<\/p>\n\n\n\n<pre id=\"F5U28\" class=\"wp-block-code\"><code>show privileges;<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u6743\u9650<\/td><td>\u89e3\u91ca<\/td><\/tr><tr><td>insert<\/td><td>\u5141\u8bb8\u5199\u5165\u6570\u636e<\/td><\/tr><tr><td>delete<\/td><td>\u5141\u8bb8\u5220\u9664\u6570\u636e<\/td><\/tr><tr><td>select<\/td><td>\u5141\u8bb8\u67e5\u8be2\u6570\u636e<\/td><\/tr><tr><td>update<\/td><td>\u5141\u8bb8\u66f4\u65b0\u6570\u636e<\/td><\/tr><tr><td>create<\/td><td>\u5141\u8bb8\u521b\u5efa\u5e93\u548c\u8868<\/td><\/tr><tr><td>create role<\/td><td>\u5141\u8bb8\u521b\u5efa\u89d2\u8272<\/td><\/tr><tr><td>create user<\/td><td>\u542f\u7528\u521b\u5efa\u7528\u6237\u3001\u5220\u9664\u7528\u6237\u3001\u91cd\u547d\u540d\u7528\u6237\u548c\u64a4\u9500\u6240\u6709\u6743\u9650<\/td><\/tr><tr><td>drop<\/td><td>\u5141\u8bb8\u5220\u9664\u5e93\u3001\u8868\u3001\u89c6\u56fe\u7b49<\/td><\/tr><tr><td>drop role<\/td><td>\u5f00\u542f\u5220\u9664\u89d2\u8272<\/td><\/tr><tr><td>alter<\/td><td>\u5141\u8bb8\u4fee\u6539\u8868\u7ed3\u6784<\/td><\/tr><tr><td>lock tables<\/td><td>\u5728\u5177\u6709select\u6743\u9650\u7684\u8868\u4e0a\u542f\u7528\u9501\u8868\u6743\u9650<\/td><\/tr><tr><td>show databases<\/td><td>\u5f00\u542f\u67e5\u770b\u6240\u6709\u5e93\u7684\u6743\u9650<\/td><\/tr><tr><td>super<\/td><td>\u5141\u8bb8\u4f7f\u7528\u5176\u4ed6\u7ba1\u7406\u64cd\u4f5c\uff0c\u6bd4\u5982\uff1a CHANGE REPLICATION SOURCE TO, CHANGE MASTER TO, KILL, PURGE BINARY LOGS, SET GLOBAL\uff0c\u8fd8\u5305\u62ecmysqladmin debug \u547d\u4ee4<\/td><\/tr><tr><td>all<\/td><td>\u9664grant option \u548cproxy\u6743\u9650\u5916\uff0c\u8d4b\u4e88\u5176\u4ed6\u6240\u6709\u6743\u9650<\/td><\/tr><tr><td>\u66f4\u591a MySQL \u6743\u9650\u53c2\u8003<\/td><td>\u53ef\u53c2\u8003\u5b98\u65b9\u6587\u6863: <a href=\"https:\/\/dev.mysql.com\/doc\/refman\/8.0\/en\/grant.html\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/dev.mysql.com\/doc\/refman\/8.0\/en\/grant.html<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"gRQZu\">2.3 \u6743\u9650\u7ba1\u7406\u64cd\u4f5c<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"zKKnA\">2.3.1 \u7528\u6237\u6388\u6743<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u044ad773\">\u6388\u4e88\u7528\u6237\u5bf9martin\u5e93\u7684\u589e\u5220\u6539\u67e5\u6743\u9650\uff1a<\/p>\n\n\n\n<pre id=\"Xgs9Z\" class=\"wp-block-code\"><code>GRANT insert,delete,select,update ON martin.* TO 'martin'@'localhost';<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u6a751ace\">\u521b\u5efa\u6d4b\u8bd5\u8868\u5e76\u63d2\u5165\u6570\u636e\uff08\u7528\u4e8e\u6743\u9650\u9a8c\u8bc1\uff09\uff1a<\/p>\n\n\n\n<pre id=\"WC4u6\" class=\"wp-block-code\"><code>create table grant_test (id int , name varchar(20),age int);\ninsert into grant_test values (1,'a',1);<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u74d79293\">\u82e5\u9700\u9650\u5236\u7528\u6237\u4ec5\u80fd\u67e5\u8be2\u7279\u5b9a\u5217\uff08\u5982id\u548cname\uff09\uff0c\u53ef\u6267\u884c\uff1a<\/p>\n\n\n\n<pre id=\"PEgQ5\" class=\"wp-block-code\"><code>CREATE USER martin_r_1@localhost IDENTIFIED BY 'password';\ngrant select(id,name) on martin.grant_test to martin_r_1@localhost;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u005c23f6\">\u4f7f\u7528\u8be5\u7528\u6237\u767b\u5f55\u540e\uff0c\u5141\u8bb8\u7684\u67e5\u8be2\uff1a<\/p>\n\n\n\n<pre id=\"IQlPq\" class=\"wp-block-code\"><code>select id,name from grant_test; -- \u6b63\u5e38\u6267\u884c<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u64708a09\">\u8d85\u51fa\u6743\u9650\u7684\u67e5\u8be2\u4f1a\u62a5\u9519\uff1a<\/p>\n\n\n\n<pre id=\"LlEbJ\" class=\"wp-block-code\"><code>select id,name,age from grant_test; -- \u6267\u884c\u5931\u8d25<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"Ucd0d\">2.3.2 \u67e5\u8be2\u6743\u9650<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ud56c058c\">\u67e5\u770b\u6307\u5b9a\u7528\u6237\u7684\u6743\u9650\u660e\u7ec6\uff1a<\/p>\n\n\n\n<pre id=\"wigpk\" class=\"wp-block-code\"><code>show grants for martin_r_1@localhost;<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"xaWcw\">2.3.3 \u6743\u9650\u56de\u6536<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u6a622f40\">\u64a4\u9500\u7528\u6237\u5bf9martin\u5e93\u7684\u63d2\u5165\u6743\u9650\uff1a<\/p>\n\n\n\n<pre id=\"ZQppm\" class=\"wp-block-code\"><code>REVOKE INSERT ON martin.* FROM 'martin'@'localhost';<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"zVx0c\">2.2.4 \u6743\u9650\u6388\u4e88\u539f\u5219<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e3a\u4e0d\u540c\u573a\u666f\u521b\u5efa\u72ec\u7acb\u7528\u6237\uff0c\u907f\u514d\u5171\u7528\u8d26\u53f7<\/li>\n\n\n\n<li>\u9075\u5faa\u201c\u6700\u5c0f\u6743\u9650\u539f\u5219\u201d\uff0c\u4ec5\u6388\u4e88\u5b8c\u6210\u5de5\u4f5c\u5fc5\u9700\u7684\u6743\u9650<\/li>\n\n\n\n<li>\u7981\u6b62\u65e5\u5e38\u64cd\u4f5c\u4f7f\u7528root\u8d26\u53f7<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"oNWPk\">3 MySQL\u89d2\u8272\u7ba1\u7406\u673a\u5236<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"VqGY9\">3.1 \u521b\u5efa\u89d2\u8272<\/h2>\n\n\n\n<pre id=\"IvtFe\" class=\"wp-block-code\"><code>CREATE ROLE 'app_developer'; -- \u521b\u5efa\u5e94\u7528\u5f00\u53d1\u8005\u89d2\u8272<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Qjqa1\">3.2 \u4e3a\u89d2\u8272\u8d4b\u6743<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uab1d14b1\">\u6388\u4e88\u89d2\u8272\u5bf9app_db\u5e93\u7684\u5b8c\u6574\u64cd\u4f5c\u6743\u9650\uff1a<\/p>\n\n\n\n<pre id=\"Eluku\" class=\"wp-block-code\"><code>GRANT select,update,delete,insert ON app_db.* TO 'app_developer';<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"TYgyH\">3.3 \u89d2\u8272\u5173\u8054\u7528\u6237<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5148\u521b\u5efa\u7528\u6237\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"S3IpX\" class=\"wp-block-code\"><code>create user 'martin_role'@'localhost' identified by 'IHB87Edsa';<\/code><\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u5c06\u89d2\u8272\u8d4b\u4e88\u7528\u6237\uff08\u66ff\u4ee3\u76f4\u63a5\u6388\u4e88\u6743\u9650\uff09\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"RViHF\" class=\"wp-block-code\"><code>grant 'app_developer' to 'martin_role'@'localhost';<\/code><\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>\u67e5\u770b\u6743\u9650\u5173\u8054\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"eza1i\" class=\"wp-block-code\"><code>show grants for martin_role@localhost; -- \u67e5\u770b\u7528\u6237\u6743\u9650\nshow grants for app_developer; -- \u67e5\u770b\u89d2\u8272\u6743\u9650<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"WhMO4\">3.4 \u89d2\u8272\u7ba1\u7406\u5176\u4ed6\u64cd\u4f5c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ue656819d\">\u64a4\u9500\u7528\u6237\u7684\u89d2\u8272\uff1a<\/p>\n\n\n\n<pre id=\"Meyj0\" class=\"wp-block-code\"><code>revoke app_developer from 'martin_role'@'localhost';<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ua1f24ac0\">\u5220\u9664\u89d2\u8272\uff1a<\/p>\n\n\n\n<pre id=\"pU37i\" class=\"wp-block-code\"><code>drop role app_developer;<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"x855V\">4 MySQL\u5bc6\u7801\u5b89\u5168\u7ba1\u7406<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"RdPVC\">4.1 \u5bc6\u7801\u4fee\u6539\u64cd\u4f5c<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4fee\u6539\u5f53\u524d\u767b\u5f55\u7528\u6237\uff08\u5982root\uff09\u7684\u5bc6\u7801\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"oHvD1\" class=\"wp-block-code\"><code>ALTER USER user() IDENTIFIED BY 'auth_string';<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4fee\u6539\u6307\u5b9a\u7528\u6237\u7684\u5bc6\u7801\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"Ku1Hq\" class=\"wp-block-code\"><code>alter user 'martin'@'localhost' identified by 'xxx';<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u521b\u5efa\u7528\u6237\u65f6\u81ea\u52a8\u751f\u6210\u968f\u673a\u5bc6\u7801\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"sICVw\" class=\"wp-block-code\"><code>create user 'martin'@'localhost' identified by random password;<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e3a\u5df2\u6709\u7528\u6237\u91cd\u7f6e\u968f\u673a\u5bc6\u7801\uff1a<\/li>\n<\/ul>\n\n\n\n<pre id=\"VnkuD\" class=\"wp-block-code\"><code>alter user 'martin'@'localhost' identified by random password;<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"XBBWz\">4.2 \u5bc6\u7801\u5b89\u5168\u6700\u4f73\u5b9e\u8df5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"u29Fp\">4.2.1 \u5f3a\u5236\u4f7f\u7528\u5f3a\u5bc6\u7801<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u3cb0bd49\">\u901a\u8fc7\u5b89\u88c5validate_password\u63d2\u4ef6\u5b9e\u73b0\u5bc6\u7801\u5f3a\u5ea6\u63a7\u5236\uff1a<\/p>\n\n\n\n<pre id=\"sTu4f\" class=\"wp-block-code\"><code>install component 'file:\/\/component_validate_password';<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ue61019ac\">\u67e5\u770b\u5bc6\u7801\u7b56\u7565\u53c2\u6570\uff1a<\/p>\n\n\n\n<pre id=\"jHEbt\" class=\"wp-block-code\"><code>show global variables like 'validate_password%';<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/bca4b2dacf28454290eee1c1bc4ef8ca.png\" alt=\"\" title=\"null\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u03ca294f\">\u5173\u952e\u53c2\u6570\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>validate_password.check_user_name<\/code>\uff1a\u7981\u6b62\u5bc6\u7801\u4e0e\u7528\u6237\u540d\u76f8\u540c<\/li>\n\n\n\n<li><code>validate_password.length<\/code>\uff1a\u5bc6\u7801\u6700\u5c0f\u957f\u5ea6\u9650\u5236<\/li>\n\n\n\n<li><code>validate_password.policy<\/code>\uff1a\u5f3a\u5ea6\u7b49\u7ea7\uff080\/LOW\uff1a\u4ec5\u68c0\u67e5\u957f\u5ea6\uff1b1\/MEDIUM\uff1a\u68c0\u67e5\u957f\u5ea6\u3001\u6570\u5b57\u3001\u5927\u5c0f\u5199\u53ca\u7279\u6b8a\u5b57\u7b26\uff1b2\/STRONG\uff1a\u989d\u5916\u68c0\u67e5\u5b57\u5178\u6587\u4ef6\uff09<\/li>\n\n\n\n<li><code>validate_password.mixed_case_count<\/code>\uff1a\u5927\u5c0f\u5199\u5b57\u6bcd\u6700\u5c11\u6570\u91cf<\/li>\n\n\n\n<li><code>validate_password.number_count<\/code>\uff1a\u6700\u5c11\u6570\u5b57\u6570\u91cf<\/li>\n\n\n\n<li><code>validate_password.special_char_count<\/code>\uff1a\u6700\u5c11\u7279\u6b8a\u5b57\u7b26\u6570\u91cf<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"BY507\">4.2.2 \u5bc6\u7801\u8bd5\u9519\u9650\u5236<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u7149f54d\">\u521b\u5efa\u7528\u6237\u65f6\u9650\u5236\u5bc6\u7801\u9519\u8bef\u6b21\u6570\uff08\u5982\u8fde\u7eed\u8f93\u95194\u6b21\u9501\u5b9a3\u5929\uff09\uff1a<\/p>\n\n\n\n<pre id=\"rGLZf\" class=\"wp-block-code\"><code>create user 'test_pass'@'localhost' identified by '1QAZ@wsx' failed_login_attempts 4 password_lock_time 3;\ngrant select on *.* to 'test_pass'@'localhost';<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uc70a580f\">\u9a8c\u8bc1\u9501\u5b9a\u673a\u5236\uff08\u6545\u610f\u8f93\u5165\u9519\u8bef\u5bc6\u7801\uff09\uff1a<\/p>\n\n\n\n<pre id=\"iSJg2\" class=\"wp-block-code\"><code>mysql -utest_pass -p'aaaaa' -- \u591a\u6b21\u6267\u884c\u5c06\u89e6\u53d1\u9501\u5b9a<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/7df7c25ba8444932b542337b146b359c.png\" alt=\"\" title=\"null\"\/><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"DNwaO\">5 MySQL\u7528\u6237\u8d44\u6e90\u9650\u5236<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"QEB99\">5.1 \u8d44\u6e90\u9650\u5236\u53c2\u6570\u8bf4\u660e<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"uc0ee15ae\">\u53ef\u9650\u5236\u7684\u7528\u6237\u8d44\u6e90\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6bcf\u5c0f\u65f6\u6700\u5927\u67e5\u8be2\u6b21\u6570\uff08<code>MAX_QUERIES_PER_HOUR<\/code>\uff09<\/li>\n\n\n\n<li>\u6bcf\u5c0f\u65f6\u6700\u5927\u66f4\u65b0\u6b21\u6570\uff08<code>MAX_UPDATES_PER_HOUR<\/code>\uff09<\/li>\n\n\n\n<li>\u6bcf\u5c0f\u65f6\u6700\u5927\u8fde\u63a5\u6b21\u6570\uff08<code>MAX_CONNECTIONS_PER_HOUR<\/code>\uff09<\/li>\n\n\n\n<li>\u5e76\u53d1\u8fde\u63a5\u6570\u4e0a\u9650\uff08<code>MAX_USER_CONNECTIONS<\/code>\uff09<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"KSlp3\">5.2 \u8d44\u6e90\u9650\u5236\u914d\u7f6e<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"ogHNm\">5.2.1 \u521b\u5efa\u7528\u6237\u65f6\u9650\u5236\u8d44\u6e90<\/h3>\n\n\n\n<pre id=\"H1F9L\" class=\"wp-block-code\"><code>CREATE USER 'martin_02'@'localhost' identified by 'Udapadg999a^'\nWITH MAX_QUERIES_PER_HOUR 500  -- \u6bcf\u5c0f\u65f6\u6700\u591a500\u6b21\u67e5\u8be2\nMAX_UPDATES_PER_HOUR 100      -- \u6bcf\u5c0f\u65f6\u6700\u591a100\u6b21\u66f4\u65b0\nMAX_CONNECTIONS_PER_HOUR 50   -- \u6bcf\u5c0f\u65f6\u6700\u591a50\u6b21\u8fde\u63a5\nMAX_USER_CONNECTIONS 50;      -- \u6700\u591a50\u4e2a\u5e76\u53d1\u8fde\u63a5<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"EI0UF\">5.2.2 \u4fee\u6539\u73b0\u6709\u7528\u6237\u8d44\u6e90\u9650\u5236<\/h3>\n\n\n\n<pre id=\"awdOw\" class=\"wp-block-code\"><code>ALTER USER 'martin'@'localhost' WITH MAX_QUERIES_PER_HOUR 100;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u76e075c3\">\u53d6\u6d88\u9650\u5236\uff08\u5c06\u503c\u8bbe\u4e3a0\uff09\uff1a<\/p>\n\n\n\n<pre id=\"A25HT\" class=\"wp-block-code\"><code>ALTER USER 'martin'@'localhost' WITH MAX_QUERIES_PER_HOUR 0;<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"OGqD7\">5.2.3 \u91cd\u7f6e\u8d44\u6e90\u4f7f\u7528\u8ba1\u6570<\/h3>\n\n\n\n<pre id=\"k8yhj\" class=\"wp-block-code\"><code>FLUSH USER_RESOURCES;  -- \u5355\u72ec\u91cd\u7f6e\u8d44\u6e90\u8ba1\u6570\n-- \u6216\nFLUSH PRIVILEGES;      -- \u5237\u65b0\u6743\u9650\u65f6\u540c\u6b65\u91cd\u7f6e<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"NmR0k\">6 \u627e\u56deMySQL root\u5bc6\u7801<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"JzHYm\">6.1 \u64cd\u4f5c\u6b65\u9aa4<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4fee\u6539\u914d\u7f6e\u6587\u4ef6\u8df3\u8fc7\u6743\u9650\u9a8c\u8bc1<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"Je5Zr\" class=\"wp-block-code\"><code>vim \/data\/mysql\/conf\/my.cnf  -- \u7f16\u8f91\u914d\u7f6e\u6587\u4ef6<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ufa3e752e\">\u5728[mysqld]\u8282\u70b9\u6dfb\u52a0\uff1a<\/p>\n\n\n\n<pre id=\"pByEm\" class=\"wp-block-code\"><code>skip-grant-tables  -- \u8df3\u8fc7\u6743\u9650\u6821\u9a8c<\/code><\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u91cd\u542fMySQL\u670d\u52a1<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"CWBOJ\" class=\"wp-block-code\"><code>\/etc\/init.d\/mysql.server restart<\/code><\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u514d\u5bc6\u767b\u5f55\u5e76\u6e05\u7a7aroot\u5bc6\u7801<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"U7sxX\" class=\"wp-block-code\"><code>mysql -uroot -p  -- \u76f4\u63a5\u56de\u8f66\u767b\u5f55\uff08\u65e0\u9700\u5bc6\u7801\uff09<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u91107e22\">\u6267\u884cSQL\u6e05\u7a7a\u5bc6\u7801\uff1a<\/p>\n\n\n\n<pre id=\"maBnQ\" class=\"wp-block-code\"><code>update mysql.user set authentication_string = '' \nwhere user = 'root' and host='localhost';<\/code><\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li><strong>\u6062\u590d\u6743\u9650\u9a8c\u8bc1\u914d\u7f6e<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"sEIAi\" class=\"wp-block-code\"><code>vim \/data\/mysql\/conf\/my.cnf  -- \u5220\u9664skip-grant-tables\u53c2\u6570\n\/etc\/init.d\/mysql.server restart  -- \u91cd\u542f\u670d\u52a1<\/code><\/pre>\n\n\n\n<ol start=\"5\" class=\"wp-block-list\">\n<li><strong>\u91cd\u7f6eroot\u5bc6\u7801<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"o9UjU\" class=\"wp-block-code\"><code>mysql -uroot -p  -- \u4f7f\u7528\u7a7a\u5bc6\u7801\u767b\u5f55<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ude01be83\">\u6267\u884c\u4fee\u6539\u5bc6\u7801\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre id=\"Q3QDi\" class=\"wp-block-code\"><code>alter user user() identified by 'dup81Gcda2';  -- \u8bbe\u7f6e\u65b0\u5bc6\u7801<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"Jwe0v\">7 SQL MODE\u8be6\u89e3<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"R4UlQ\">7.1 SQL MODE\u7684\u67e5\u8be2\u4e0e\u914d\u7f6e<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"TG4L2\">7.1.1 \u67e5\u8be2SQL MODE<\/h3>\n\n\n\n<pre id=\"SSkJZ\" class=\"wp-block-code\"><code>select @@global.sql_mode;  -- \u67e5\u770b\u5168\u5c40\u6a21\u5f0f\nselect @@session.sql_mode; -- \u67e5\u770b\u5f53\u524d\u4f1a\u8bdd\u6a21\u5f0f<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"R6MGg\">7.1.2 \u8bbe\u7f6eSQL MODE<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u542f\u52a8\u65f6\u6307\u5b9a\uff08\u547d\u4ee4\u884c\uff09\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"XgIDd\" class=\"wp-block-code\"><code>mysqld --sql-mode=\"XXX\"<\/code><\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u914d\u7f6e\u6587\u4ef6\u6301\u4e45\u5316\uff08\u63a8\u8350\uff09\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"ViEEk\" class=\"wp-block-code\"><code>vim \/data\/mysql\/conf\/my.cnf<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ucb60a586\">\u5728[mysqld]\u8282\u70b9\u6dfb\u52a0\uff1a<\/p>\n\n\n\n<pre id=\"cQxNy\" class=\"wp-block-code\"><code>sql-mode='XXX'  -- \u4f8b\u5982\uff1asql-mode='STRICT_TRANS_TABLES,ONLY_FULL_GROUP_BY'<\/code><\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>\u8fd0\u884c\u65f6\u4fee\u6539\u5168\u5c40\u6a21\u5f0f\uff08\u91cd\u542f\u540e\u5931\u6548\uff09\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"oHokv\" class=\"wp-block-code\"><code>SET GLOBAL sql_mode = \"XXX\";<\/code><\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li>\u8fd0\u884c\u65f6\u4fee\u6539\u5f53\u524d\u4f1a\u8bdd\u6a21\u5f0f\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"M99EL\" class=\"wp-block-code\"><code>SET SESSION sql_mode = \"xxx\";<\/code><\/pre>\n\n\n\n<ol start=\"5\" class=\"wp-block-list\">\n<li>\u65b0\u589e\u6a21\u5f0f\uff08\u4fdd\u7559\u73b0\u6709\u914d\u7f6e\uff09\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"BJrZr\" class=\"wp-block-code\"><code>SET SESSION sql_mode = sys.list_add(@@session.sql_mode, 'ONLY_FULL_GROUP_BY');<\/code><\/pre>\n\n\n\n<ol start=\"6\" class=\"wp-block-list\">\n<li>\u79fb\u9664\u7279\u5b9a\u6a21\u5f0f\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"YzfwF\" class=\"wp-block-code\"><code>SET SESSION sql_mode = sys.list_drop(@@session.sql_mode, 'ONLY_FULL_GROUP_BY');<\/code><\/pre>\n\n\n\n<ol start=\"7\" class=\"wp-block-list\">\n<li>\u6e05\u7a7a\u6a21\u5f0f\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"b62gO\" class=\"wp-block-code\"><code>SET SESSION sql_mode = '';<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"RLnNr\">7.2 \u5e38\u89c1SQL MODE\u8bf4\u660e<\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td>SQL MODE<\/td><td>\u89e3\u91ca<\/td><\/tr><tr><td>STRICT_TRANS_TABLES<\/td><td>\u4e3a\u4e8b\u52a1\u5b58\u50a8\u5f15\u64ce\u542f\u7528\u4e25\u683c\u7684SQL\u6a21\u5f0f\uff0c\u5728\u63d2\u5165\u4e0d\u5408\u6cd5\u6570\u636e\u65f6\uff0cMySQL\u5c06\u4e0d\u518d\u63d2\u5165\u201c\u9ed8\u8ba4\u503c\u201d\uff0c\u800c\u662f\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u6837\u53ef\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002\u8fd9\u79cd\u6a21\u5f0f\u6bd4\u8f83\u9002\u5408\u5bf9\u6570\u636e\u5b8c\u6574\u6027\u8981\u6c42\u4e25\u683c\u7684\u573a\u666f<\/td><\/tr><tr><td>ANSI<\/td><td>\u7b49\u540c\u4e8eREAL_AS_FLOAT\u3001PIPES_AS_CONCAT\u3001ANSI_QUOTES\u3001IGNORE_SPACE\u548cONLY_FULL_GROUP_BY<\/td><\/tr><tr><td>TRADITIONAL<\/td><td>\u53ef\u4ee5\u7406\u89e3\u4e3a\u8ba9MySQL\u50cf\u4f20\u7edf\u7684SQL\u6570\u636e\u5e93\u7cfb\u7edf\u4e00\u6837\u8fd0\u884c\uff0c\u7b49\u540c\u4e8eSTRICT_TRANS_TABLES\u3001STRICT_ALL_TABLES\u3001NO_ZERO_IN_DATE\u3001NO_ZERO_DATE\u3001ERROR_FOR_DIVISION_BY_ZERO\u548cNO_ENGINE_SUBSTITUTION<\/td><\/tr><tr><td>ONLY_FULL_GROUP_BY<\/td><td>\u5982\u679c\u67d0\u4e2a\u5217\u4e0d\u5728group by\u5217\u8868\u4e2d\uff0c\u6b64\u65f6\u5982\u679c\u4e0d\u5bf9\u8be5\u5217\u8fdb\u884c\u805a\u5408\u5904\u7406\uff0c\u5219\u8be5\u5217\u4e0d\u80fd\u51fa\u73b0\u5728select\u5217\u8868\u3001having\u6761\u4ef6\u4e2d\u4ee5\u53caorder by\u5217\u8868\u4e2d\uff08\u4e0b\u4e00\u8282\u5185\u5bb9\u4f1a\u901a\u8fc7\u5b9e\u9a8c\u6765\u7406\u89e3\u8fd9\u4e2aSQL MODE\u7684\u4f5c\u7528\uff09<\/td><\/tr><tr><td>NO_BACKSLASH_ESCAPES<\/td><td>\u542f\u7528\u6b64\u6a21\u5f0f\u5c06\u7981\u6b62\u4f7f\u7528\u53cd\u659c\u6760\u5b57\u7b26\u201c\\\u201d\u4f5c\u4e3a\u5b57\u7b26\u4e32\u548c\u6807\u8bc6\u7b26\u4e2d\u7684\u8f6c\u4e49\u5b57\u7b26\uff0c\u53cd\u659c\u6760\u5c06\u50cf\u5176\u4ed6\u5b57\u7b26\u4e32\u4e00\u6837\u53d8\u6210\u666e\u901a\u5b57\u7b26<\/td><\/tr><tr><td>PIPES_AS_CONCAT<\/td><td>\u5c06\u201c||\u201d\u89c6\u4e3a\u5b57\u7b26\u4e32\u8fde\u63a5\u64cd\u4f5c\u7b26<\/td><\/tr><tr><td>NO_ENGINE_SUBSTITUTION<\/td><td>\u542f\u7528\u6b64\u6a21\u5f0f\u65f6\uff0c\u5982\u679c\u521b\u5efa\u6216\u8005\u66f4\u6539\u8868\u65f6\u6307\u5b9a\u4e86\u4e0d\u53ef\u7528\u7684\u5b58\u50a8\u5f15\u64ce\uff0c\u5219\u62a5\u9519\u4e0d\u6267\u884c\uff1b\u672a\u542f\u7528\u6b64\u6a21\u5f0f\u65f6\uff0c\u4f1a\u66ff\u6362\u6210\u9ed8\u8ba4\u5b58\u50a8\u5f15\u64ce<\/td><\/tr><tr><td>NO_ZERO_DATE<\/td><td>\u542f\u7528\u6b64\u6a21\u5f0f\uff0c&#8217;0000-00-00&#8242; \u5219\u5141\u8bb8\u63d2\u5165\u5e76\u4ea7\u751f\u8b66\u544a\uff1b\u5982\u679c\u542f\u7528\u6b64\u6a21\u5f0f\u548c\u4e25\u683c\u6a21\u5f0f\uff0c\u5219\u4e0d\u5141\u8bb8&#8217;0000-00-00&#8217;\u63d2\u5165\uff0c\u5e76\u4f1a\u62a5\u9519\uff1b\u9664\u975e \u4f7f\u7528IGNORE\u3002\u5bf9\u4e8e INSERT IGNORE and UPDATE IGNORE\uff0c&#8217;0000-00-00&#8217;\u662f\u5141\u8bb8\u7684\uff0c\u63d2\u5165\u4f1a\u4ea7\u751f\u8b66\u544a<\/td><\/tr><tr><td>ERROR_FOR_DIVISION_BY_ZERO<\/td><td>\u542f\u7528\u6b64\u6a21\u5f0f\uff0c\u5219\u9664\u4ee5\u96f6\u4f1a\u63d2\u5165 NULL\u5e76\u4ea7\u751f\u8b66\u544a\uff1b\u542f\u7528\u6b64\u6a21\u5f0f\u548c\u4e25\u683c\u6a21\u5f0f\uff0c\u9664\u4ee5\u96f6\u4f1a\u4ea7\u751f\u9519\u8bef\uff0c\u9664\u975eIGNORE \u4e5f\u7ed9\u51fa\u3002\u5bf9\u4e8eINSERT IGNORE \u548c UPDATE IGNORE\uff0c\u9664\u4ee5\u96f6\u63d2\u5165NULL\u5e76\u4ea7\u751f\u8b66\u544a<\/td><\/tr><tr><td>NO_ZERO_IN_DATE<\/td><td>\u5982\u679c\u542f\u7528\u6b64\u6a21\u5f0f\uff0c\u5219\u96f6\u90e8\u5206\u7684\u65e5\u671f\u5c06\u88ab\u63d2\u5165&#8217;0000-00-00&#8217;\u5e76\u4ea7\u751f\u8b66\u544a\uff1b\u5982\u679c\u542f\u7528\u6b64\u6a21\u5f0f\u548c\u4e25\u683c\u6a21\u5f0f\uff0c\u5219\u4e0d\u5141\u8bb8\u5305\u542b0\u7684\u65e5\u671f\u63d2\u5165\uff0c\u4f1a\u76f4\u63a5\u62a5\u9519<\/td><\/tr><tr><td>REAL_AS_FLOAT<\/td><td>\u628aREAL\u7c7b\u578b\uff08\u5b58\u50a8\u5927\u5c0f4\u4e2a\u5b57\u8282\uff0c\u53ef\u7cbe\u786e\u5230\u5c0f\u6570\u70b9\u540e\u7b2c7\u4f4d\uff09\u770b\u6210FLOAT\u7c7b\u578b\uff08\u5b58\u50a8\u5927\u5c0f\u4e3a8\u5b57\u8282\uff0c\u53ef\u7cbe\u786e\u5230\u5c0f\u6570\u70b9\u540e\u7b2c15\u4f4d\uff09<\/td><\/tr><tr><td>ANSI_QUOTES<\/td><td>\u53cc\u5f15\u53f7\u5c06\u88ab\u89c6\u4e3a\u6807\u8bc6\u7b26\u7684\u5f15\u53f7\uff0c\u800c\u4e0d\u662f\u5b57\u7b26\u4e32\u7684\u5f15\u53f7<\/td><\/tr><tr><td>IGNORE_SPACE<\/td><td>\u51fd\u6570\u540d\u79f0\u548c(\u4e4b\u95f4\u5141\u8bb8\u6709\u7a7a\u683c\uff0c\u4f1a\u5bfc\u81f4\u5185\u7f6e\u7684\u51fd\u6570\u53d8\u6210\u4fdd\u7559\u5b57<\/td><\/tr><tr><td>\u66f4\u591aSQL MODE<\/td><td><a href=\"https:\/\/dev.mysql.com\/doc\/refman\/8.0\/en\/sql-mode.html\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/dev.mysql.com\/doc\/refman\/8.0\/en\/sql-mode.html<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>STRICT_TRANS_TABLES<\/strong>\uff1a\u4e25\u683c\u6a21\u5f0f\uff0c\u63d2\u5165\u65e0\u6548\u503c\u65f6\u62a5\u9519\uff08\u800c\u975e\u8b66\u544a\uff09<\/li>\n\n\n\n<li><strong>ONLY_FULL_GROUP_BY<\/strong>\uff1a\u9650\u5236GROUP BY\u67e5\u8be2\u4e2d\u975e\u805a\u5408\u5217\u7684\u4f7f\u7528<\/li>\n\n\n\n<li><strong>TRADITIONAL<\/strong>\uff1a\u4f20\u7edf\u6a21\u5f0f\uff0c\u6a21\u62df\u201c\u4e25\u683cSQL\u201d\u884c\u4e3a\uff0cInvalid\u503c\u76f4\u63a5\u62a5\u9519<\/li>\n\n\n\n<li><strong>ANSI<\/strong>\uff1a\u517c\u5bb9ANSI\u6807\u51c6\uff0c\u5bbd\u677e\u6a21\u5f0f\uff08\u65e0\u6548\u503c\u53ef\u80fd\u88ab\u622a\u65ad\u6216\u8f6c\u6362\uff09<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"eqbP8\">8 SQL MODE\u5bf9\u6570\u636e\u7684\u5f71\u54cd<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"eUs9S\">8.1 \u5b9e\u9a8c\u9a8c\u8bc1<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"DinLA\">8.1.1 \u5b57\u6bb5\u957f\u5ea6\u8d85\u9650\u7684\u5904\u7406\u5dee\u5f02<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5bbd\u677e\u6a21\u5f0f\uff08ANSI\uff09\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"Uvc6D\" class=\"wp-block-code\"><code>set session sql_mode='ansi';\ncreate table sql_mode_test(id int auto_increment,name varchar(5),primary key(id));\ninsert into sql_mode_test values(1,'\u514b\u91cc\u65af\u8482\u4e9a\u8bfa\u00b7\u7f57\u7eb3\u5c14\u591a'); -- \u8d85\u957f\u5b57\u7b26\u4e32\nshow warnings; -- \u63d0\u793a\u201c\u6570\u636e\u88ab\u622a\u65ad\u201d\nselect * from sql_mode_test; -- name\u5b57\u6bb5\u88ab\u622a\u65ad\u4e3a5\u4e2a\u5b57\u7b26<\/code><\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u4e25\u683c\u6a21\u5f0f\uff08STRICT_TRANS_TABLES\uff09\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"xRLQi\" class=\"wp-block-code\"><code>set session sql_mode='STRICT_TRANS_TABLES';\ninsert into sql_mode_test values(2,'abcefghi'); -- \u76f4\u63a5\u62a5\u9519\n-- \u9519\u8bef\u4fe1\u606f\uff1aERROR 1406 (22001): Data too long for column 'name' at row 1<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"KMeEL\">8.1.2 \u65e0\u6548\u65f6\u95f4\u683c\u5f0f\u7684\u5904\u7406\u5dee\u5f02<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5bbd\u677e\u6a21\u5f0f\uff08ANSI\uff09\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"yVWCY\" class=\"wp-block-code\"><code>set session sql_mode='ansi';\ncreate table time_test(createtime timestamp);\ninsert into time_test values('2017-03-20 00:00:60'); -- \u65e0\u6548\u65f6\u95f4\uff08\u79d2\u6570\u8d85\u9650\uff09\nshow warnings; -- \u63d0\u793a\u201c\u65f6\u95f4\u503c\u65e0\u6548\u201d\nselect * from time_test; -- \u5b58\u50a8\u4e3a0000-00-00 00:00:00<\/code><\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u4f20\u7edf\u6a21\u5f0f\uff08TRADITIONAL\uff09\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"RKEtN\" class=\"wp-block-code\"><code>set session sql_mode='TRADITIONAL';\ninsert into time_test values('2017-03-20 00:00:60'); -- \u76f4\u63a5\u62a5\u9519\n-- \u9519\u8bef\u4fe1\u606f\uff1aInvalid datetime value: '2017-03-20 00:00:60'<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"pII4m\">8.1.3 ONLY_FULL_GROUP_BY\u7684\u5f71\u54cd<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u672a\u542f\u7528\u65f6\uff08\u53ef\u80fd\u4ea7\u751f\u9519\u8bef\u7ed3\u679c\uff09\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"PoN3g\" class=\"wp-block-code\"><code>create table group_by_test (id int auto_increment primary key,name varchar(10),address varchar(10),score int);\ninsert into group_by_test(name,address,score) values \n('a','beijing',90),('b','shanghai',88),('c','beijing',86),('d','shanghai',92);\n\n-- \u9519\u8bef\u67e5\u8be2\uff08\u975e\u805a\u5408\u5217name\u672a\u5728GROUP BY\u4e2d\uff09\nselect address,name,max(score) from group_by_test group by address; \n-- \u7ed3\u679c\u4e2dname\u53ef\u80fd\u4e0emax(score)\u4e0d\u5339\u914d<\/code><\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u542f\u7528\u540e\uff08\u5f3a\u5236\u89c4\u8303\u67e5\u8be2\uff09\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"jASQK\" class=\"wp-block-code\"><code>SET SESSION sql_mode = sys.list_add(@@session.sql_mode, 'ONLY_FULL_GROUP_BY');\nselect address,name,max(score) from group_by_test group by address; -- \u76f4\u63a5\u62a5\u9519\n-- \u9519\u8bef\u4fe1\u606f\uff1aExpression #2 of SELECT list is not in GROUP BY clause<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"jqpwf\">8.2 \u6700\u4f73\u5b9e\u8df5\u5efa\u8bae<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u542f\u7528\u4e25\u683c\u6a21\u5f0f\uff08\u5982STRICT_TRANS_TABLES\uff09\uff0c\u907f\u514d\u65e0\u6548\u6570\u636e\u5199\u5165<\/li>\n\n\n\n<li>\u5f3a\u5236\u5f00\u542fONLY_FULL_GROUP_BY\uff0c\u89c4\u8303GROUP BY\u67e5\u8be2\u903b\u8f91<\/li>\n\n\n\n<li>\u6570\u636e\u5e93\u8fc1\u79fb\u6216\u5347\u7ea7\u65f6\uff0c\u786e\u4fdd\u65b0\u65e7\u73af\u5883SQL MODE\u4e00\u81f4<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"w9hdq\">9 \u5b9e\u6218\u6848\u4f8b\uff1a\u7528\u6237\u4e0e\u89d2\u8272\u914d\u7f6e<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"tdjHb\">9.1 \u9700\u6c42\u4e0e\u5b9e\u73b0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"ued27e620\">\u9700\u521b\u5efa4\u4e2a\u7528\u6237\uff0c\u6743\u9650\u8981\u6c42\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>user1@192.168.1.3\uff1aproduct\u5e93\u8bfb\u5199\u6743\u9650<\/li>\n\n\n\n<li>user2@192.168.2.%\uff1aproduct\u5e93\u8bfb\u5199\u6743\u9650<\/li>\n\n\n\n<li>user3@192.168.3.5\uff1aproduct\u5e93\u53ea\u8bfb\uff0c\u5bc6\u7801\u8f93\u95195\u6b21\u6c38\u4e45\u9501\u5b9a<\/li>\n\n\n\n<li>user4@192.168.3.6\uff1aproduct.inventory_info\u8868\u53ea\u8bfb\uff0c\u6bcf\u5c0f\u65f6\u6700\u591a100\u6b21\u67e5\u8be2\uff0c\u5e76\u53d1\u8fde\u63a5\u22642<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u3bed6368\">\u5b9e\u73b0\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u521b\u5efa\u5171\u4eab\u89d2\u8272\uff08\u7528\u4e8euser1\u548cuser2\uff09\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"T5XN6\" class=\"wp-block-code\"><code>CREATE ROLE 'product_rw_role'; -- \u5b9a\u4e49\u8bfb\u5199\u89d2\u8272\nGRANT SELECT,UPDATE,DELETE,INSERT ON product.* TO 'product_rw_role'; -- \u89d2\u8272\u8d4b\u6743<\/code><\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u521b\u5efauser1\u5e76\u5173\u8054\u89d2\u8272\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"JBpJ2\" class=\"wp-block-code\"><code>CREATE user 'user1'@'192.168.1.3' identified by random password; -- \u968f\u673a\u5bc6\u7801\nGRANT 'product_rw_role' TO 'user1'@'192.168.1.3'; -- \u5173\u8054\u89d2\u8272<\/code><\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>\u521b\u5efauser2\u5e76\u5173\u8054\u89d2\u8272\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"uM9eF\" class=\"wp-block-code\"><code>CREATE user 'user2'@'192.168.2.%' identified by random password;\nGRANT 'product_rw_role' TO 'user2'@'192.168.2.%';<\/code><\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li>\u521b\u5efauser3\uff08\u5e26\u5bc6\u7801\u9501\u5b9a\uff09\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"weJoO\" class=\"wp-block-code\"><code>CREATE user 'user3'@'192.168.3.5' identified by random by password failed_login_attempts 5 password_lock_time unbounded; -- \u6c38\u4e45\u9501\u5b9a\nGRANT select ON product.* TO 'user3'@'192.168.3.5';<\/code><\/pre>\n\n\n\n<ol start=\"5\" class=\"wp-block-list\">\n<li>\u521b\u5efauser4\uff08\u5e26\u8d44\u6e90\u9650\u5236\uff09\uff1a<\/li>\n<\/ol>\n\n\n\n<pre id=\"ovIhu\" class=\"wp-block-code\"><code>CREATE user 'user4'@'192.168.3.6' identified by random password\nWITH MAX_QUERIES_PER_HOUR 100 \nMAX_USER_CONNECTIONS 2;\nGRANT select ON product.inventory_info to 'user4'@'192.168.3.6';<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"sKj8s\">10 \u501f\u52a9ChatGPT\u9ad8\u6548\u7ba1\u7406MySQL\u7528\u6237<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"bpXKI\">10.1 \u521b\u5efa\u7528\u6237\u4e0e\u8d4b\u6743<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u929d6077\"><strong>\u9700\u6c42<\/strong>\uff1aMySQL8.0\u4e2d\u521b\u5efa\u7528\u6237rw_user@%\uff0c\u6388\u4e88\u6240\u6709\u5e93\u7684\u589e\u5220\u6539\u67e5\u6743\u9650\u3002<br><strong>\u751f\u6210SQL<\/strong>\uff1a<\/p>\n\n\n\n<pre id=\"coFvw\" class=\"wp-block-code\"><code>CREATE USER 'rw_user'@'%' IDENTIFIED BY 'your_password_here';\nGRANT SELECT, INSERT, UPDATE, DELETE ON *.* TO 'rw_user'@'%';\nFLUSH PRIVILEGES; -- \u5237\u65b0\u6743\u9650<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"UtEkm\">10.2 \u6743\u9650\u56de\u6536<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u7e1ed877\"><strong>\u9700\u6c42<\/strong>\uff1aMySQL8.0\uff0c\u56de\u6536\u7528\u6237rw_user@%\u5bf9\u6240\u6709\u5e93\u7684delete\u6743\u9650\u3002<br><strong>\u751f\u6210SQL<\/strong>\uff1a<\/p>\n\n\n\n<pre id=\"Cue7U\" class=\"wp-block-code\"><code>-- \u5148\u67e5\u8be2\u5f53\u524d\u6743\u9650\nshow grants for 'rw_user'@'%';\n-- \u6267\u884c\u56de\u6536\nREVOKE DELETE ON *.* FROM 'rw_user'@'%';\nFLUSH PRIVILEGES;<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"ynl5r\">10.3 \u6279\u91cf\u751f\u6210\u6743\u9650\u67e5\u8be2\u8bed\u53e5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u5a0321d7\"><strong>\u9700\u6c42<\/strong>\uff1aMySQL8.0\uff0c\u4e3a\u6bcf\u4e2a\u7528\u6237\u6784\u9020\u4e00\u6761show grants for \u2018user_name\u2019@&#8217;host\u2019\u7684\u8bed\u53e5\u3002<br><strong>\u751f\u6210SQL<\/strong>\uff1a<\/p>\n\n\n\n<pre id=\"odx5H\" class=\"wp-block-code\"><code>SELECT CONCAT(\"SHOW GRANTS FOR '\", user, \"'@'\", host, \"';\") \nAS show_grants_statement \nFROM mysql.user \nORDER BY user, host;<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"hk08T\">11 \u7ae0\u672b\u603b\u7ed3<\/h1>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u77e5\u8bc6\u70b9<\/td><td>\u9700\u8981\u638c\u63e1\u7684\u5185\u5bb9<\/td><\/tr><tr><td>\u7528\u6237\u7ba1\u7406<\/td><td>\u521b\u5efa\u7528\u6237\u3001\u67e5\u8be2\u7528\u6237\u3001\u5220\u9664\u7528\u6237<\/td><\/tr><tr><td>\u6743\u9650\u7ba1\u7406<\/td><td>\u6743\u9650\u7684\u5206\u7c7b\u3001\u5e38\u7528\u7684\u4e00\u4e9b\u6743\u9650\u3001\u6743\u9650\u8d4b\u4e88\u3001\u6743\u9650\u67e5\u8be2\u3001\u6743\u9650\u56de\u6536\u3001\u6743\u9650\u6388\u4e88\u7684\u539f\u5219<\/td><\/tr><tr><td>\u89d2\u8272\u7ba1\u7406<\/td><td>\u521b\u5efa\u89d2\u8272\u3001\u7ed9\u89d2\u8272\u8d4b\u6743\u3001\u4f7f\u7528\u89d2\u8272\u3001\u64a4\u9500\u89d2\u8272\u3001\u5220\u9664\u89d2\u8272<\/td><\/tr><tr><td>\u5bc6\u7801\u7ba1\u7406<\/td><td>\u5bc6\u7801\u4fee\u6539\u3001\u5bc6\u7801\u7ba1\u7406\u7684\u6700\u4f73\u5b9e\u8df5<\/td><\/tr><tr><td>\u9650\u5236\u7528\u6237\u8d44\u6e90<\/td><td>\u8d44\u6e90\u9650\u5236\u7684\u51e0\u4e2a\u53c2\u6570\u3001\u600e\u4e48\u589e\u52a0\u8d44\u6e90\u9650\u5236\u3001\u91cd\u7f6e\u8d44\u6e90\u4f7f\u7528\u8ba1\u6570<\/td><\/tr><tr><td>\u5fd8\u8bb0root\u5bc6\u7801\u600e\u4e48\u5904\u7406<\/td><td>\u914d\u7f6e\u514d\u5bc6\u767b\u5f55\u3001root\u7528\u6237\u4fee\u6539\u6210\u7a7a\u5bc6\u7801\u3001\u91cd\u65b0\u4fee\u6539\u5bc6\u7801<\/td><\/tr><tr><td>SQL MODE\u7684\u4f7f\u7528<\/td><td>\u67e5\u8be2SQL MODE\u3001\u8bbe\u7f6eSQL MODE\u3001\u5e38\u89c1SQL MODE\u89e3\u91ca<\/td><\/tr><tr><td>SQL MODE\u5bf9\u67e5\u8be2\u7ed3\u679c\u7684\u5f71\u54cd<\/td><td>\u5b57\u6bb5\u8d85\u8fc7\u957f\u5ea6\u5728\u4e0d\u540csql_mode\u4e0b\u7684\u8868\u73b0\u3001\u5199\u5165\u9519\u8bef\u7684\u65f6\u95f4\u683c\u5f0f\u5728\u4e0d\u540csql_mode\u4e0b\u7684\u8868\u73b0\u3001ONLY_FULL_GROUP_BY\u5bf9\u4e00\u4e9b\u7ed3\u679c\u7684\u5f71\u54cd<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u58672c5b\">MySQL\u5b89\u5168\u7ba1\u7406\u7684\u6838\u5fc3\u5728\u4e8e\u201c\u6700\u5c0f\u6743\u9650+\u7cbe\u7ec6\u63a7\u5236\u201d\uff0c\u9700\u91cd\u70b9\u5173\u6ce8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u7528\u6237\u4e0e\u89d2\u8272\u5206\u79bb\uff0c\u901a\u8fc7\u89d2\u8272\u6279\u91cf\u7ba1\u7406\u6743\u9650<\/li>\n\n\n\n<li>\u5f3a\u5236\u5bc6\u7801\u5f3a\u5ea6\u4e0e\u8bd5\u9519\u9650\u5236\uff0c\u9632\u8303\u66b4\u529b\u7834\u89e3<\/li>\n\n\n\n<li>\u5408\u7406\u914d\u7f6e\u8d44\u6e90\u9650\u5236\uff0c\u907f\u514d\u5355\u4e2a\u7528\u6237\u8017\u5c3d\u7cfb\u7edf\u8d44\u6e90<\/li>\n\n\n\n<li>\u542f\u7528\u4e25\u683cSQL MODE\uff08\u5982STRICT_TRANS_TABLES\u3001ONLY_FULL_GROUP_BY\uff09\uff0c\u4fdd\u969c\u6570\u636e\u4e00\u81f4\u6027<\/li>\n\n\n\n<li>\u5b9a\u671f\u5ba1\u8ba1\u6743\u9650\uff0c\u53ca\u65f6\u56de\u6536\u5197\u4f59\u6743\u9650<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"u25a54591\">\u901a\u8fc7\u89c4\u8303\u5316\u7684\u5b89\u5168\u7b56\u7565\uff0c\u53ef\u663e\u8457\u964d\u4f4e\u6570\u636e\u5e93\u88ab\u672a\u6388\u6743\u8bbf\u95ee\u3001\u6570\u636e\u6cc4\u9732\u6216\u8bef\u64cd\u4f5c\u7684\u98ce\u9669\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u4ecb\u7ecd\u4e86MySQL\u7528\u6237\u7ba1\u7406\u4e0e\u5b89\u5168\u7ba1\u7406\u76f8\u5173\u7684\u77e5\u8bc6\u3002<\/p>\n","protected":false},"author":1,"featured_media":210,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[16],"class_list":["post-208","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mysql","tag-mysql"],"_links":{"self":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/208","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=208"}],"version-history":[{"count":3,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/208\/revisions"}],"predecessor-version":[{"id":212,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/208\/revisions\/212"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/media\/210"}],"wp:attachment":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=208"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=208"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=208"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}