{"id":1137,"date":"2013-12-12T18:21:02","date_gmt":"2013-12-12T10:21:02","guid":{"rendered":"http:\/\/nick.txtcc.com\/?p=1137"},"modified":"2013-12-12T18:21:02","modified_gmt":"2013-12-12T10:21:02","slug":"set-%e5%92%8c-show%e8%af%ad%e6%b3%95%ef%bc%88%e4%b8%80%ef%bc%89","status":"publish","type":"post","link":"https:\/\/nick.txtcc.com\/index.php\/linux\/1137","title":{"rendered":"SET \u548c SHOW\u8bed\u6cd5\uff08\u4e00\uff09"},"content":{"rendered":"<p align=\"left\"><code>SET<\/code>\u00a0\u53ef\u4ee5\u7528\u4e8e\u8bbe\u7f6e\u5404\u79cd\u53d8\u91cf\u6216\u8005\u9009\u9879\u3002<\/p>\n<p align=\"left\"><code>SHOW<\/code>\u00a0\u53ef\u4ee5\u4ee5\u5404\u79cd\u5f62\u5f0f\u63cf\u8ff0\u6570\u636e\u5e93\u7cfb\u7edf\u7684\u4fe1\u606f\uff0c\u8bf8\u5982\u6570\u636e\u8868\uff0c\u5b57\u6bb5\uff0c\u670d\u52a1\u5668\u72b6\u6001\u7b49\u7b49\u3002\u5927\u81f4\u6709\u4ee5\u4e0b\u8fd9\u4e9b\u65b9\u6cd5\uff1a<\/p>\n<pre>SHOW [FULL] COLUMNS FROM <var>tbl_name<\/var> [FROM <var>db_name<\/var>] [LIKE '<var>pattern<\/var>']\nSHOW CREATE DATABASE <var>db_name<\/var>\nSHOW CREATE TABLE <var>tbl_name<\/var>\nSHOW DATABASES [LIKE '<var>pattern<\/var>']\nSHOW [STORAGE] ENGINES\nSHOW ERRORS [LIMIT [<var>offset<\/var>,] <var>row_count<\/var>]\nSHOW GRANTS FOR <var>user<\/var>\nSHOW INDEX FROM <var>tbl_name<\/var> [FROM <var>db_name<\/var>]\nSHOW INNODB STATUS\nSHOW [BDB] LOGS\nSHOW PRIVILEGES\nSHOW [FULL] PROCESSLIST\nSHOW STATUS [LIKE '<var>pattern<\/var>']\nSHOW TABLE STATUS [FROM <var>db_name<\/var>] [LIKE '<var>pattern<\/var>']\nSHOW [OPEN] TABLES [FROM <var>db_name<\/var>] [LIKE '<var>pattern<\/var>']\nSHOW [GLOBAL | SESSION] VARIABLES [LIKE '<var>pattern<\/var>']\nSHOW WARNINGS [LIMIT [<var>offset<\/var>,] <var>row_count<\/var>]<\/pre>\n<p>\u5982\u679c\u00a0<code>SHOW<\/code>\u00a0\u8bed\u6cd5\u4e2d\u5305\u62ec\u00a0<code>LIKE '&lt;var&gt;pattern&lt;\/var&gt;'<\/code>\u00a0\u5206\u53e5\u7684\u8bdd\uff0c<code>'&lt;var&gt;pattern&lt;\/var&gt;'<\/code>\u00a0\u662f\u4e00\u4e2a\u53ef\u4ee5\u5305\u62ec SQL \u8bed\u6cd5\u4e2d\u2018 % &#8216;\u548c\u2018 _ &#8216;\u7b49\u901a\u914d\u7b26\u7684\u5b57\u7b26\u4e32\u3002\u8fd9\u4e2a\u6a21\u5f0f\u8bed\u53e5\u5bf9\u4e8e\u53d6\u5f97\u76f8\u5e94\u7684\u7ed3\u679c\u5341\u5206\u6709\u7528\u3002<\/p>\n<p align=\"left\">\u8bf7\u6ce8\u610f\uff0c\u8fd8\u6709\u4ee5\u4e0b\u51e0\u79cd\u4e0d\u540c\u7684\u6807\u8bc6\u65b9\u5f0f\uff1a<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<ul>\n    <li><code>SET PASSWOR<\/code>\u00a0\u8bed\u53e5\u7528\u4e8e\u8bbe\u5b9a\u5e10\u6237\u7684\u5bc6\u7801\uff0c\u8be6\u60c5\u8bf7\u770b\u201c<a>14.5.1.3\u00a0<code>SET PASSWORD<\/code>Syntax<\/a>\u201d\u3002<\/li>\n    <li><code>SHOW<\/code>\u00a0\u8bed\u53e5\u6709\u4ee5\u4e0b\u51e0\u79cd\u65b9\u5f0f\u7528\u4e8e\u63cf\u8ff0\u590d\u5236\u4e3b\u670d\u52a1\u5668\u548c\u4ece\u670d\u52a1\u5668\u7684\u4fe1\u606f\uff1a<\/li>\n<\/ul>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n    <li>\n<pre>SHOW BINLOG EVENTS\nSHOW MASTER LOGS\nSHOW MASTER STATUS\nSHOW SLAVE HOSTS\nSHOW SLAVE STATUS<\/pre>\n\u8fd9\u4e9b\u683c\u5f0f\u7684\u00a0<code>SHOW<\/code>\u00a0\u8be6\u7ec6\u63cf\u8ff0\u8be6\u60c5\u8bf7\u770b\u201c<a>14.6 Replication Statements<\/a>\u201d\u3002<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h4><a id=\"SET_OPTION\" name=\"SET_OPTION\"><\/a>14.5.3.1\u00a0<code>SET<\/code>\u00a0\u8bed\u6cd5<\/h4>\n<pre>SET <var>variable_assignment<\/var> [, <var>variable_assignment<\/var>] ...\n\n<var>variable_assignment<\/var>:\n      <var>user_var_name<\/var> = <var>expr<\/var>\n    | [GLOBAL | SESSION] <var>system_var_name<\/var> = <var>expr<\/var>\n    | @@[global. | session.]<var>system_var_name<\/var> = <var>expr<\/var><\/pre>\n<p><code>SET<\/code>\u00a0\u53ef\u4ee5\u8bbe\u7f6e\u5404\u79cd\u4e0d\u540c\u7684\u53d8\u91cf\u7c7b\u578b\uff0c\u8fd9\u4e9b\u53d8\u91cf\u53ef\u4ee5\u5f71\u54cd\u7740\u670d\u52a1\u5668\u6216\u8005\u5ba2\u6237\u7aef\u7684\u53c2\u6570\u3002\u5b83\u53ef\u4ee5\u5e2e\u52a9\u4f60\u8bbe\u7f6e\u7528\u6237\u53d8\u91cf\u6216\u8005\u662f\u7cfb\u7edf\u53d8\u91cf\u3002\n\u5728 MySQL 4.0.3 \u4e2d\uff0c\u6211\u4eec\u589e\u52a0\u4e86\u00a0<code>GLOBAL<\/code>\u00a0\u548c\u00a0<code>SESSION<\/code>\u00a0\u9009\u9879\uff0c\u5e76\u4e14\u53ef\u4ee5\u5728\u8fd0\u884c\u65f6\u52a8\u6001\u4fee\u6539\u7cfb\u7edf\u4e2d\u6700\u91cd\u8981\u7684\u53c2\u6570\u3002\u8fd9\u4e9b\u53ef\u4ee5\u88ab\u52a8\u6001\u4fee\u6539\u7684\u7cfb\u7edf\u53c2\u6570\u8be6\u60c5\u8bf7\u770b\u201c<a>5.2.3.1 Dynamic System Variables<\/a>\u201d\u4e2d\u4f1a\u88ab\u8be6\u7ec6\u63cf\u8ff0\u5230\u3002\n\u5728\u8001\u7248\u672c\u7684 MySQL \u4e2d\uff0c<code>SET<\/code>\u00a0\u5176\u5b9e\u662f\u00a0<code>SET OPTION<\/code>\u00a0\u7684\u4ee3\u66ff\uff0c\u5b83\u5c11\u4e86\u00a0<code>OPTION<\/code>\u00a0\u8fd9\u4e2a\u53c2\u6570\uff0c\u4e0d\u8fc7\u73b0\u5728\u4e0d\u63a8\u8350\u7684\u4f7f\u7528\u65b9\u6cd5\u3002\n\u4ee5\u4e0b\u8fd9\u4e2a\u4f8b\u5b50\u6f14\u793a\u4e86\u51e0\u79cd\u4f7f\u7528\u8bbe\u7f6e\u53d8\u91cf\u7684\u65b9\u6cd5\u3002<\/p>\n<p align=\"left\">\u7528\u6237\u53d8\u91cf\u5199\u6210\u00a0<code>@&lt;var&gt;var_name&lt;\/var&gt;<\/code>\uff0c\u7528\u4ee5\u4e0b\u65b9\u6cd5\u6765\u8bbe\u7f6e\uff1a<\/p>\n<pre>SET @<var>var_name<\/var> = <var>expr<\/var>;<\/pre>\n<p>\u7528\u6237\u53d8\u91cf\u7684\u7279\u6027\u8bf4\u660e\u5c06\u5728\u7ae0\u8282\u201c<a>10.3 User Variables<\/a>\u201d\u4e2d\u63d0\u5230\u3002<\/p>\n<p align=\"left\">\u7cfb\u7edf\u53d8\u91cf\u5728\u00a0<code>SET<\/code>\u00a0\u8bed\u6cd5\u4e2d\u53ef\u4ee5\u4ee5\u00a0<var>var_name<\/var>\u00a0\u7684\u65b9\u5f0f\u6765\u5f15\u7528\u3002\u53d8\u91cf\u540d\u524d\u9762\u7528\u00a0<code>GLOBAL<\/code>\u00a0\u6216<code>@@global.<\/code>\u00a0\u6765\u8868\u793a\u8fd9\u662f\u4e00\u4e2a\u5168\u5c40\u53d8\u91cf\uff0c\u7528\u00a0<code>SESSION<\/code>\u00a0,\u00a0<code>@@session.<\/code>\u00a0\u6216\u00a0<code>@@<\/code>\u00a0\u6765\u8868\u793a\u8fd9\u662f\u4e00\u4e2a\u4f1a\u8bdd\u53d8\u91cf\u3002\u00a0<code>LOCAL<\/code>\u00a0\u548c\u00a0<code>@@local.<\/code>\u00a0\u5176\u5b9e\u00a0<code>SESSION<\/code>\u00a0\u548c\u00a0<code>@@session.<\/code>\u00a0\u5c5e\u540c\u4e49\u3002\u5982\u679c\u53d8\u91cf\u540d\u524d\u9762\u6ca1\u6709\u9644\u52a0\u7684\u4fee\u9970\u8bcd\u7684\u8bdd\uff0c\u90a3\u4e48\u00a0<code>SET<\/code>\u00a0\u53ea\u4fee\u6539\u4f1a\u8bdd\u53d8\u91cf\u3002<\/p>\n<p align=\"left\">\u4ee5\u00a0<code>@@&lt;var&gt;var_name&lt;\/var&gt;<\/code>\u8fd9\u79cd\u683c\u5f0f\u6765\u8868\u793a\u7cfb\u7edf\u53d8\u91cf\uff0c\u5728 MySQL \u4e2d\u662f\u53ef\u4ee5\u652f\u6301\u7684\uff0c\u4ee5\u517c\u5bb9\u5176\u5b83\u6570\u636e\u5e93\u7cfb\u7edf\u3002<\/p>\n<p align=\"left\">\u5982\u679c\u4f60\u60f3\u5728\u540c\u4e00\u4e2a\u8bed\u53e5\u4e2d\u6765\u4fee\u6539\u591a\u4e2a\u7cfb\u7edf\u53d8\u91cf\uff0c\u6700\u540e\u4e00\u6b21\u51fa\u73b0\u7684\u00a0<code>GLOBAL<\/code>\u00a0\u6216\u00a0<code>SESSION<\/code>\u5c06\u4f5c\u4e3a\u8be5\u8bed\u53e5\u4e2d\u6ca1\u6709\u4fee\u9970\u8bcd\u7684\u53d8\u91cf\u7684\u9ed8\u8ba4\u9009\u9879\u3002<\/p>\n<pre>SET sort_buffer_size=10000;\nSET @@local.sort_buffer_size=10000;\nSET GLOBAL sort_buffer_size=1000000, SESSION sort_buffer_size=1000000;\nSET @@sort_buffer_size=1000000;\nSET @@global.sort_buffer_size=1000000, @@local.sort_buffer_size=1000000;<\/pre>\n<p align=\"left\">\u5982\u679c\u4f60\u8bbe\u7f6e\u4e86\u7cfb\u7edf\u53d8\u91cf\u65f6\u7528\u00a0<code>SESSION<\/code>\u00a0\uff08\u9ed8\u8ba4\u7684\uff09 \u9009\u9879\uff0c\u90a3\u4e48\u5b83\u7684\u503c\u5c06\u5728\u4f1a\u8bdd\u7ed3\u675f\u524d\u6216\u8005\u76f4\u5230\u4f60\u6539\u53d8\u5b83\u4e4b\u524d\u4e00\u76f4\u6709\u6548\u3002\u5982\u679c\u8bbe\u7f6e\u7cfb\u7edf\u53d8\u91cf\u662f\u7528\u00a0<code>GLOBAL<\/code>\u00a0\u9009\u9879\uff0c\u8fd9\u5fc5\u987b\u8981\u6c42\u4f60\u5177\u5907\u00a0<code>SUPER<\/code>\u00a0\uff08\u8d85\u7ea7\uff09 \u6743\u9650\uff0c\u5b83\u7684\u503c\u4ece\u65b0\u7684\u8fde\u63a5\u5f00\u59cb\u5230\u7cfb\u7edf\u91cd\u542f\u524d\u4e00\u76f4\u6709\u6548\u3002\u5982\u679c\u4f60\u60f3\u8981\u4e00\u4e2a\u53d8\u91cf\u6c38\u4e45\u751f\u6548\u7684\u8bdd\uff0c\u90a3\u4e48\u53ef\u4ee5\u628a\u5b83\u653e\u5230\u914d\u7f6e\u6587\u4ef6\u4e2d\u3002\u8be6\u60c5\u8bf7\u770b\u201c<a>4.3.2 Using Option Files<\/a>\u201d\u3002<\/p>\n<p>\u4e3a\u4e86\u9632\u6b62\u64cd\u4f5c\u9519\u8bef\uff0c\u4f8b\u5982\u5982\u679c\u4f60\u60f3\u7528\u00a0<code>SET GLOBAL<\/code>\u00a0\u4fee\u6539\u4e00\u4e2a\u53ea\u80fd\u7528\u00a0<code>SET SESSION<\/code>\u00a0\u6765\u4fee\u6539\u7684\u53d8\u91cf\uff0c\u6216\u8005\u4e0d\u662f\u7528\u00a0<code>SET&nbsp;<\/code>\n<code>GLOBAL<\/code>\u00a0\u7684\u65b9\u5f0f\u6765\u4fee\u6539\u4e00\u4e2a\u5168\u5c40\u53d8\u91cf\u65f6\uff0c MySQL \u5c31\u4f1a\u62a5\u544a\u4e00\u4e2a\u9519\u8bef\u3002<\/p>\n<p>\u5982\u679c\u4f60\u60f3\u8ba9\u4e00\u4e2a\u00a0<code>SESSION<\/code>\u00a0\uff08\u4f1a\u8bdd\uff09 \u53d8\u91cf\u7684\u503c\u8bbe\u5b9a\u6210\u4e3a\u4e00\u4e2a\u00a0<code>GLOBAL<\/code>\u00a0\u53d8\u91cf\u7684\u503c\uff0c\u6216\u8005\u60f3\u8ba9\u00a0<code>GLOBAL<\/code>\u00a0\u53d8\u91cf\u7684\u503c\u53d8\u6210MySQL\u5185\u5d4c\u7f16\u8bd1\u7684\u9ed8\u8ba4\u503c\u7684\u8bdd\uff0c\u4f60\u53ef\u4ee5\u8bbe\u7f6e\u5b83\u4e3a<code>DEFAULT<\/code>\u00a0\uff08\u9ed8\u8ba4\u503c\uff09 \u3002\u4ee5\u4e0b\u7684\u8fd9 2 \u4e2a\u4f8b\u5b50\u90fd\u662f\u540c\u6837\u7684\u8bbe\u7f6e\u4f1a\u8bdd\u53d8\u91cf<code>max_join_size<\/code>\u00a0\u7684\u503c\u6210\u4e3a\u5168\u5c40\u53d8\u91cf\u7684\u503c\uff1a<\/p>\n<pre>SET max_join_size=DEFAULT;\nSET @@session.max_join_size=@@global.max_join_size;<\/pre>\n<p>\u4f60\u53ef\u4ee5\u901a\u8fc7\u00a0<code>SHOW VARIABLES<\/code>\u00a0\u547d\u4ee4\u5217\u51fa\u7edd\u5927\u90e8\u5206\u7684\u7cfb\u7edf\u53d8\u91cf\u3002\u8be6\u60c5\u8bf7\u770b\u201c<a href=\"http:\/\/imysql.cn\/?q=node\/15#SHOW_VARIABLES\">14.5.3.20<code>SHOW VARIABLES<\/code>\u00a0Syntax<\/a>\u201d\u7684\u8bed\u6cd5 \u3002\u5982\u679c\u60f3\u8981\u901a\u8fc7\u6a21\u5f0f\u5339\u914d\u7684\u65b9\u5f0f\u6765\u83b7\u53d6\u53d8\u91cf\u5217\u8868\u7684\u8bdd\uff0c\u53ef\u4ee5\u4f7f\u7528\u00a0<code>LIKE<\/code>\u00a0\u5206\u53e5\uff1a<\/p>\n<pre>SHOW VARIABLES LIKE 'max_join_size';\nSHOW GLOBAL VARIABLES LIKE 'max_join_size';<\/pre>\n<p>\u4f60\u8fd8\u53ef\u4ee5\u4f7f\u7528 SELECT\u00a0<a href=\"mailto:code>@@[global.|local.]var_name<\/code\">code>@@[global.|local.]var_name<\/code<\/a>\u00a0\u6765\u53d6\u5f97\u6307\u5b9a\u53d8\u91cf\u7684\u503c\uff1a<\/p>\n<pre>SELECT @@max_join_size, @@global.max_join_size;<\/pre>\n<p>\u5728\u901a\u8fc7\u00a0<code>SELECT @@var_name<\/code>\u00a0( \u8fd9\u6837\u7684\u8bdd\uff0c\u5c31\u65e0\u9700\u6307\u5b9a\u662f\u00a0<code>global<\/code>\u00a0\u8fd8\u662f\u00a0<code>session<\/code>\u00a0\u6291\u6216\u662f\u00a0<code>local<\/code>\u00a0\u4e86 ) \u6765\u53d6\u5f97\u53d8\u91cf\u7684\u503c\u65f6\uff0c MySQL \u4f1a\u8fd4\u56de\u00a0<code>SESSION<\/code>\u00a0\u53d8\u91cf\u7684\u503c\uff0c\u5982\u679c\u5b83\u4e0d\u5b58\u5728\uff0c\u5219\u8fd4\u56de\u00a0<code>GLOBAL<\/code>\u00a0\u53d8\u91cf\u7684\u503c\u3002<\/p>\n<p>\u4ee5\u4e0b\u6240\u5217\u7684\u662f\u90a3\u4e9b\u975e\u6807\u51c6\u6216\u8005\u662f\u5728\u7ae0\u8282\u201c<a>5.2.3 Server System Variables<\/a>\u201d\u4e2d\u627e\u6ca1\u6709\u5217\u51fa\u6765\u7684\u53d8\u91cf\u3002\u5c3d\u7ba1\u8fd9\u4e9b\u53d8\u91cf\u7528\u00a0<code>SHOW VARIABLES<\/code>\u00a0\u5e76\u4e0d\u663e\u793a\u51fa\u6765\uff0c\u4f46\u4f60\u53ef\u4ee5\u7528\u00a0<code>SELECT<\/code>\u00a0(<code>CHARACTER SET<\/code>\u00a0\u548c\u00a0<code>SET NAMES<\/code>\u00a0\u9664\u5916 ) \u6765\u53d6\u5f97\u5b83\u4eec\u7684\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>mysql> SELECT @@AUTOCOMMIT;\n+--------------+\n| @@autocommit |\n+--------------+\n|            1 |\n+--------------+<\/pre>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<dl compact><dt><code>AUTOCOMMIT = {0 | 1}<\/code><\/dt>\n<dd>\u8bbe\u7f6e autocommit \uff08\u81ea\u52a8\u63d0\u4ea4\uff09\u6a21\u5f0f\u3002\u82e5\u8bbe\u7f6e\u4e3a\u00a0<code>1<\/code>\u00a0\uff0c\u5219\u6240\u6709\u5bf9\u6570\u636e\u8868\u7684\u64cd\u4f5c\u90fd\u4f1a\u7acb\u5373\u751f\u6548\u3002\u82e5\u8bbe\u7f6e\u4e3a\u00a0<code><\/code>\u00a0\uff0c\u5219\u5fc5\u987b\u6267\u884c\u00a0<code>COMMIT<\/code>\u00a0\u4ee5\u63d0\u4ea4\u4e8b\u52a1\u6216\u8005\u6267\u884c\u00a0<code>ROLLBACK<\/code>\u53d6\u6d88\u4e8b\u52a1\u3002\u5982\u679c\u628a\u00a0<code>AUTOCOMMIT<\/code>\u00a0\u7531\u00a0<code><\/code>\u00a0\u6539\u6210\u00a0<code>1<\/code>\u00a0\uff0c MySQL \u4f1a\u81ea\u52a8\u63d0\u4ea4\u4efb\u4f55\u4e00\u4e2a\u5f00\u653e\u7684\u4e8b\u52a1\u3002\u5f00\u59cb\u4e00\u4e2a\u4e8b\u52a1\u7684\u53e6\u4e00\u4e2a\u65b9\u6cd5\u53ef\u4ee5\u662f\u6267\u884c\u00a0<code>START TRANSACTION<\/code>\u00a0\u6216<code>BEGIN<\/code>\u00a0\u8bed\u53e5\u3002\u8be6\u60c5\u8bf7\u770b\u201c<a>14.4.1\u00a0<code>START TRANSACTION<\/code>,\u00a0<code>COMMIT<\/code>, and<code>ROLLBACK<\/code>\u00a0Syntax<\/a>\u201d\u3002\u00a0\n\n<\/dd>\n<dt><code>BIG_TABLES = {0 | 1}<\/code><\/dt>\n<dd>\u5982\u679c\u88ab\u8bbe\u7f6e\u4e3a\u00a0<code>1<\/code>\uff0c\u5219\u6240\u6709\u7684\u4e34\u65f6\u8868\u5c06\u5b58\u653e\u5728\u78c1\u76d8\u91cc\u800c\u975e\u5185\u5b58\u3002\u8fd9\u4f1a\u4f7f\u901f\u5ea6\u53d8\u5f97\u7a0d\u5fae\u6162\u4e86\u70b9\uff0c\u4f46\u662f\u5728\u6267\u884c\u00a0<code>SELECT<\/code>\u00a0\u64cd\u4f5c\u65f6\u9700\u8981\u4e00\u4e2a\u5927\u4e34\u65f6\u8868\u7684\u60c5\u51b5\u4e0b\u5c31\u4e0d\u518d\u4f1a\u62a5\u544a<code>The table&nbsp;&lt;var&gt;tbl_name&lt;\/var&gt;&nbsp;is full<\/code>\u00a0\u9519\u8bef\u4e86\u3002\u5bf9\u4e8e\u65b0\u8fde\u63a5\uff0c\u5b83\u7684\u9ed8\u8ba4\u503c\u662f\u00a0<code><\/code>\uff08\u5728\u5185\u5b58\u4e2d\u5b58\u653e\u4e34\u65f6\u8868\uff09 \u3002\u4ece MySQL 4.0 \u8d77\uff0c\u4f60\u65e0\u9700\u8bbe\u7f6e\u8fd9\u4e2a\u53d8\u91cf\uff0c\u56e0\u4e3a MySQL \u4f1a\u81ea\u52a8\u5728\u9700\u8981\u7684\u60c5\u51b5\u4e0b\u5c06\u5185\u5b58\u5b58\u50a8\u7684\u8868\u8f6c\u6362\u4e3a\u786c\u76d8\u5b58\u50a8\u7684\u8868\u3002\u8fd9\u4e2a\u53d8\u91cf\u73b0\u5728\u7684\u540d\u5b57\u662f\u00a0<code>SQL_BIG_TABLES<\/code>\u00a0\u3002\u00a0\n\n<\/dd>\n<dt><code>CHARACTER SET {&lt;var&gt;charset_name&lt;\/var&gt;&nbsp;| DEFAULT}<\/code><\/dt>\n<dd>\u5b83\u7528\u4e8e\u5c06\u4ece\u5ba2\u6237\u7aef\u53d6\u5f97\u7684\u4ee5\u53ca\u53d1\u5f80\u5ba2\u6237\u7aef\u7684\u5b57\u7b26\u4e32\u90fd\u6620\u5c04\u6210\u6307\u5b9a\u7684\u5b57\u7b26\u4e32\u3002\u5728 MySQL 4.1 \u4ee5\u524d\uff0c\u552f\u4e00\u5141\u8bb8\u7684\u5b57\u7b26\u96c6\u662f\u00a0<code>cp1251_koi8<\/code>\u00a0\uff0c\u4e0d\u8fc7\u4f60\u4e5f\u53ef\u4ee5\u901a\u8fc7\u4fee\u6539 MySQL \u53d1\u5e03\u7684\u6e90\u4ee3\u7801\u4e2d\u7684\u00a0<tt>`sql\/convert.cc'<\/tt>\u00a0\u6587\u4ef6\u6765\u589e\u52a0\u65b0\u7684\u8f6c\u6362\u5b57\u7b26\u96c6\u3002\u4ece MySQL 4.1.1 \u5f00\u59cb\uff0c<code>SET CHARACTER SET<\/code>\u00a0\u5c06\u8bbe\u7f6e 3 \u4e2a\u4f1a\u8bdd\u7cfb\u7edf\u53d8\u91cf\uff1a<code>character_set_client<\/code>\u00a0\u548c\u00a0<code>character_set_results<\/code>\u00a0\u4f1a\u88ab\u8bbe\u7f6e\u6210\u6307\u5b9a\u7684\u5b57\u7b26\u96c6\uff0c\u00a0<code>character_set_connection<\/code>\u00a0\u7684\u503c\u88ab\u8bbe\u7f6e\u6210<code>character_set_database<\/code>\u00a0\u7684\u503c\u3002\u9ed8\u8ba4\u7684\u8f6c\u6362\u5b57\u7b26\u96c6\u53ef\u4ee5\u88ab\u91cd\u7f6e\u4e3a\u503c<code>DEFAULT<\/code>\u00a0\uff08\u9ed8\u8ba4\u503c\uff09 \u3002\u8bf7\u6ce8\u610f\uff0c<code>SET CHARACTER SET<\/code>\u00a0\u7684\u8bed\u6cd5\u548c\u5176\u5b83\u5927\u591a\u6570\u8bbe\u7f6e\u9009\u9879\u7684\u8bed\u6cd5\u4e0d\u4e00\u6837\u3002\u00a0\n\n<\/dd>\n<dt><code>FOREIGN_KEY_CHECKS = {0 | 1}<\/code><\/dt>\n<dd>\u5982\u679c\u5b83\u8bbe\u7f6e\u4e3a\u00a0<code>1<\/code>\u00a0\uff08\u9ed8\u8ba4\u503c\uff09 \uff0c\u5219\u00a0<code>InnoDB<\/code>\u00a0\u8868\u90fd\u4f1a\u68c0\u67e5\u5916\u952e\u7ea6\u675f\u5173\u7cfb\u3002\u5982\u679c\u8bbe\u7f6e\u4e3a<code><\/code>\u00a0\uff0c\u5219\u4f1a\u7565\u8fc7\uff0c\u4e0d\u505a\u68c0\u67e5\u3002\u7981\u6b62\u5916\u952e\u7ea6\u675f\u5173\u7cfb\u68c0\u67e5\u5728\u91cd\u65b0\u52a0\u8f7d\u548c\u5b9e\u9645\u6240\u8981\u6c42\u7684\u7236\u5b50\u5173\u7cfb\u987a\u5e8f\u4e0d\u4e00\u81f4\u987a\u5e8f\u7684\u00a0<code>InnoDB<\/code>\u00a0\u8868\u65f6\u975e\u5e38\u6709\u7528\u3002\u8fd9\u4e2a\u53d8\u91cf\u662f\u5728 MySQL 3.23.52 \u4e2d\u65b0\u589e\u7684\u3002\u8be6\u60c5\u8bf7\u770b\u201c<a>16.7.4\u00a0<code>FOREIGN KEY<\/code>\u00a0Constraints<\/a>\u201d\u3002<\/dd>\n<dt><code>IDENTITY =&nbsp;&lt;var&gt;value&lt;\/var&gt;<\/code><\/dt>\n<dd>\u8fd9\u4e2a\u53d8\u91cf\u548c\u53d8\u91cf\u00a0<code>LAST_INSERT_ID<\/code>\u00a0\u5b9e\u9645\u4e0a\u662f\u4e00\u6837\u7684\u3002\u5b83\u7684\u5b58\u5728\u662f\u4e3a\u4e86\u4e0e\u5176\u5b83\u6570\u636e\u5e93\u7cfb\u7edf\u517c\u5bb9\u3002\u4ece MySQL 3.23.25 \u5f00\u59cb\uff0c\u53ef\u4ee5\u901a\u8fc7\u6267\u884c\u00a0<code>SELECT @@IDENTITY<\/code>\u6765\u83b7\u5f97\u5b83\u7684\u503c\u3002\u4ece MySQL 4.0.3 \u5f00\u59cb\uff0c\u8fd8\u53ef\u4ee5\u6267\u884c\u00a0<code>SET IDENTITY<\/code>\u00a0\u6765\u6539\u53d8\u5b83\u7684\u503c\u3002\u00a0\n\n<\/dd>\n<dt><code>INSERT_ID =&nbsp;&lt;var&gt;value&lt;\/var&gt;<\/code><\/dt>\n<dd>\u4fee\u6539\u5b83\u7684\u503c\u53ef\u4ee5\u4f5c\u4e3a\u5728\u6267\u884c\u00a0<code>INSERT<\/code>\u00a0\u6216\u00a0<code>ALTER TABLE<\/code>\u00a0\u8bed\u53e5\u4e2d\u8981\u63d2\u5165\u4e00\u4e2a<code>AUTO_INCREMENT<\/code>\u00a0\u503c\u65f6\u7684\u4e0b\u4e00\u4e2a\u503c\u3002\u5b83\u4e3b\u8981\u7528\u4e8e\u4e8c\u8fdb\u5236\u65e5\u5fd7(binary log)\u3002\u00a0\n\n<\/dd>\n<dt><code>LAST_INSERT_ID =&nbsp;&lt;var&gt;value&lt;\/var&gt;<\/code><\/dt>\n<dd>\u4fee\u6539\u5b83\u7684\u503c\u53ef\u4ee5\u4f5c\u4e3a\u00a0<code>LAST_INSERT_ID()<\/code>\u00a0\u7684\u8fd4\u56de\u503c\u3002\u5f53\u6570\u636e\u8868\u88ab\u66f4\u65b0\u65f6\u5b83\u7684\u503c\u4f1a\u5b58\u653e\u5728\u4e8c\u8fdb\u5236\u65e5\u5fd7\u4e2d\uff0c\u53ef\u4ee5\u6267\u884c\u00a0<code>LAST_INSERT_ID()<\/code>\u00a0\u8bed\u53e5\u6765\u53d6\u5f97\u5b83\u7684\u503c\u3002\u8bbe\u7f6e\u5b83\u7684\u503c\u4e0d\u4f1a\u6539\u53d8 C API \u51fd\u6570\u00a0<code>mysql_insert_id()<\/code>\u00a0\u8fd4\u56de\u7684\u7ed3\u679c\u503c\u3002\u00a0\n\n<\/dd>\n<dt><code>NAMES {'&lt;var&gt;charset_name&lt;\/var&gt;' | DEFAULT}<\/code><\/dt>\n<dd><code>SET NAMES<\/code>\u00a0\u8bbe\u7f6e\u4e86 3 \u4e2a\u4f1a\u8bdd\u53d8\u91cf\u00a0<code>character_set_client<\/code>\u00a0,<code>character_set_connection<\/code>\u00a0\u548c\u00a0<code>character_set_results<\/code>\u00a0\u4e3a\u6307\u5b9a\u7684\u5b57\u7b26\u96c6\u3002\u9ed8\u8ba4\u7684\u6620\u5c04\u5173\u7cfb\u53ef\u4ee5\u8bbe\u5b9a\u4e3a\u00a0<code>DEFAULT<\/code>\u3002\u8bf7\u6ce8\u610f\uff0c\u00a0<code>SET NAMES<\/code>\u00a0\u8bed\u6cd5\u4e5f\u4e0d\u540c\u4e8e\u5927\u591a\u6570\u5176\u5b83\u7684\u8bbe\u7f6e\u9009\u9879\u3002\u5b83\u662f\u81ea\u4ece MySQL 4.1.0 \u4ee5\u540e\u624d\u5f00\u59cb\u6709\u7684\u3002\u00a0\n\n<\/dd>\n<dt><code>SQL_AUTO_IS_NULL = {0 | 1}<\/code><\/dt>\n<dd>\u5982\u679c\u88ab\u8bbe\u7f6e\u4e3a\u00a0<code>1<\/code>\u00a0( \u9ed8\u8ba4\u503c ) \uff0c\u5219\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u8bed\u53e5\u6765\u83b7\u5f97\u67d0\u4e2a\u5305\u542b<code>AUTO_INCREMENT<\/code>\u00a0\u7c7b\u578b\u5b57\u6bb5\u7684\u8868\u6700\u540e\u4e00\u6761\u63d2\u5165\u7684\u8bb0\u5f55\uff1a\n<pre>WHERE <var>auto_increment_column<\/var> IS NULL<\/pre>\n\u8fd9\u79cd\u505a\u6cd5\u5728\u67d0\u4e9b ODBC \u7a0b\u5e8f\u4e2d\u4f1a\u88ab\u7528\u5230\uff0c\u4f8b\u5982 Access \u3002\u00a0<code>SQL_AUTO_IS_NULL<\/code>\u53d8\u91cf\u662f\u5728 MySQL 3.23.52 \u4e2d\u65b0\u589e\u7684\u3002\n\n\u00a0\n\n<\/dd>\n<dt><code>SQL_BIG_SELECTS = {0 | 1}<\/code><\/dt>\n<dd>\u5982\u679c\u8bbe\u7f6e\u4e3a\u00a0<code><\/code>\u00a0\uff0c\u5219 MySQL \u4f1a\u653e\u5f03\u90a3\u4e9b\u53ef\u80fd\u4f1a\u8017\u8d39\u5f88\u957f\u65f6\u95f4\uff08\u662f\u6307\u90a3\u4e9b\u901a\u8fc7\u4f18\u5316\u7a0b\u5e8f\u4f30\u8ba1\u5230\u9700\u8981\u68c0\u67e5\u7684\u884c\u6570\u4f1a\u8d85\u8fc7\u00a0<code>max_join_size<\/code>\u00a0\u8bbe\u5b9a\u503c\u7684\u60c5\u51b5\uff09\u7684\u00a0<code>SELECT<\/code>\u8bed\u53e5\u3002\u8fd9\u5728\u6709\u4e0d\u53ef\u53d6\u7684\u00a0<code>WHERE<\/code>\u00a0\u8bed\u53e5\u51fa\u73b0\u65f6\u5341\u5206\u6709\u7528\u3002 \u6bcf\u4e2a\u65b0\u8fde\u63a5\u7684<code>SQL_BIG_SELECTS<\/code>\u00a0\u9ed8\u8ba4\u503c\u4e3a\u00a0<code>1<\/code>\u00a0\uff0c\u4ee5\u5141\u8bb8\u6267\u884c\u6240\u6709\u7684\u00a0<code>SELECT<\/code>\u00a0\u8bed\u53e5\u3002\u5982\u679c\u8bbe\u7f6e\u7cfb\u7edf\u53d8\u91cf\u00a0<code>max_join_size<\/code>\u00a0\u4e3a\u975e\u9ed8\u8ba4\u503c\uff08\u00a0<code>DEFAULT<\/code>\u00a0\uff09\uff0c\u5219<code>SQL_BIG_SELECTS<\/code>\u00a0\u4e5f\u4f1a\u88ab\u81ea\u52a8\u8bbe\u7f6e\u6210\u4e3a\u00a0<code><\/code>\u3002\u00a0\n\n<\/dd>\n<dt><code>SQL_BUFFER_RESULT = {0 | 1}<\/code><\/dt>\n<dd><code>SQL_BUFFER_RESULT<\/code>\u00a0\u5f3a\u5236\u5c06\u00a0<code>SELECT<\/code>\u00a0\u8bed\u53e5\u67e5\u8be2\u7684\u7ed3\u679c\u653e\u5728\u4e34\u65f6\u8868\u4e2d\u3002\u8fd9\u53ef\u4ee5\u8ba9 MySQL \u5c3d\u5feb\u91ca\u653e\u52a0\u8f7d\u8868\u4e0a\u7684\u9501\uff0c\u540c\u65f6\u8fd8\u6709\u52a9\u4e8e\u6539\u5584\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u7ed3\u679c\u9700\u8981\u8f83\u957f\u65f6\u95f4\u7684\u60c5\u51b5\u3002\u8fd9\u4e2a\u53d8\u91cf\u662f\u5728 MySQL 3.23.13 \u4e2d\u65b0\u589e\u7684\u3002\n\u00a0\n\n<\/dd>\n<dt><code>SQL_LOG_BIN = {0 | 1}<\/code><\/dt>\n<dd>\u5982\u679c\u8bbe\u7f6e\u4e3a\u00a0<code><\/code>\uff0c\u5c31\u4e0d\u518d\u8bb0\u5f55\u4efb\u4f55\u4e8c\u8fdb\u5236\u65e5\u5fd7\u4e86\u3002\u5fc5\u987b\u8981\u6709\u00a0<code>SUPER<\/code>\u00a0\uff08\u8d85\u7ea7\uff09 \u6743\u9650\u65b9\u53ef\u4fee\u6539\u5b83\u7684\u503c\u3002\u8fd9\u4e2a\u53d8\u91cf\u662f\u5728 MySQL 3.23.13 \u4e2d\u65b0\u589e\u7684\u3002\u00a0\n\n<\/dd>\n<dt><code>SQL_LOG_OFF = {0 | 1}<\/code><\/dt>\n<dd>\u5982\u679c\u8bbe\u7f6e\u4e3a\u00a0<code>1<\/code>\u00a0\uff0c\u7cfb\u7edf\u5c06\u4e0d\u8bb0\u5f55\u4efb\u4f55\u666e\u901a\u7684\u67e5\u8be2\u65e5\u5fd7\u3002\u5fc5\u987b\u8981\u6709\u00a0<code>SUPER<\/code>\u00a0\uff08\u8d85\u7ea7\uff09 \u6743\u9650\u65b9\u53ef\u4fee\u6539\u5b83\u7684\u503c\u3002\u00a0\n\n<\/dd>\n<dt><code>SQL_LOG_UPDATE = {0 | 1}<\/code><\/dt>\n<dd>\u5982\u679c\u8bbe\u7f6e\u4e3a\u00a0<code><\/code>\u00a0\uff0c\u66f4\u65b0\u65e5\u5fd7\u5c06\u4e0d\u8bb0\u5f55\u4efb\u4f55\u65e5\u5fd7\u3002\u5fc5\u987b\u8981\u6709\u00a0<code>SUPER<\/code>\u00a0\uff08\u8d85\u7ea7\uff09 \u6743\u9650\u65b9\u53ef\u4fee\u6539\u5b83\u7684\u503c\u3002\u8fd9\u4e2a\u53d8\u91cf\u662f\u5728 MySQL 3.22.5 \u4e2d\u65b0\u589e\u7684\u3002\u4ece MySQL 5.0.0 \u5f00\u59cb\uff0c\u5b83\u5df2\u7ecf\u5efa\u8bae\u4e0d\u518d\u4f7f\u7528\uff0c\u800c\u53d8\u6210\u4e86\u00a0<code>SQL_LOG_BIN<\/code>\u00a0\uff08 \u8be6\u60c5\u8bf7\u770b\u201c<a>C.1.3 Changes in release 5.0.0 (22 Dec 2003: Alpha<\/a>\u201d \uff09 \u3002\u00a0\n\n<\/dd>\n<dt><code>SQL_QUOTE_SHOW_CREATE = {0 | 1}<\/code><\/dt>\n<dd>\u5982\u679c\u8bbe\u7f6e\u4e3a\u00a0<code>1<\/code>\u00a0\uff0c\u5219\u5728\u6267\u884c\u00a0<code>SHOW CREATE TABLE<\/code>\u00a0\u65f6\u5c31\u4f1a\u628a\u6570\u636e\u8868\u540d\u548c\u5b57\u6bb5\u7528\u5f15\u53f7\u5f15\u8d77\u6765\uff1b\u5982\u679c\u8bbe\u7f6e\u4e3a\u00a0<code><\/code>\u00a0\uff0c\u5c31\u4e0d\u518d\u5f15\u7528\u4e86\u3002\u8fd9\u4e2a\u9009\u9879\u9ed8\u8ba4\u662f\u6253\u5f00\u7684\uff0c\u56e0\u4e3a\u5728\u6570\u636e\u5e93\u540c\u6b65\u65f6\u9700\u8981\u6240\u6709\u7684\u8868\u540d\u548c\u5b57\u6bb5\u540d\u90fd\u5fc5\u987b\u5f15\u7528\u8d77\u6765\u624d\u884c\u3002\u8fd9\u4e2a\u9009\u9879\u662f\u5728 MySQL 3.23.26 \u4e2d\u65b0\u589e\u7684\u3002\u8be6\u7ec6\u7684\u8bf7\u67e5\u770b\u201c<a href=\"http:\/\/imysql.cn\/?q=node\/13#SHOW_CREATE_TABLE\">14.5.3.6 SHOW CREATE TABLE Syntax<\/a>\u201d\u3002\u00a0\n\n<\/dd>\n<dt><code>SQL_SAFE_UPDATES = {0 | 1}<\/code><\/dt>\n<dd>\u5982\u679c\u8bbe\u7f6e\u4e3a\u00a0<code>1<\/code>\u00a0\uff0c\u5219 MySQL \u4f1a\u653e\u5f03\u90a3\u4e9b\u5728\u00a0<code>WHERE<\/code>\u00a0\u6216\u00a0<code>LIMIT<\/code>\u00a0\u5206\u53e5\u4e2d\u6ca1\u6709\u4f7f\u7528\u952e\u7684<code>UPDATE<\/code>\u00a0\u6216\u00a0<code>DELETE<\/code>\u00a0\u8bed\u53e5\u3002\u8fd9\u5c31\u53ef\u80fd\u4f1a\u6355\u83b7\u90a3\u4e9b\u6ca1\u6709\u6b63\u786e\u4f7f\u7528\u952e\u5e76\u4e14\u53ef\u80fd\u4f1a\u5220\u9664\u5f88\u591a\u8bb0\u5f55\u7684\u00a0<code>UPDATE<\/code>\u00a0\u6216\u00a0<code>DELETE<\/code>\u00a0\u8bed\u53e5\u3002\u8fd9\u4e2a\u53d8\u91cf\u662f\u5728 MySQL 3.22.32 \u4e2d\u65b0\u589e\u7684\u3002\u00a0\n\n<\/dd>\n<dt><code>SQL_SELECT_LIMIT = {&lt;var&gt;value&lt;\/var&gt;&nbsp;| DEFAULT}<\/code><\/dt>\n<dd>\u5b83\u51b3\u5b9a\u4e86\u6267\u884c\u00a0<code>SELECT<\/code>\u00a0\u8bed\u53e5\u65f6\u8fd4\u56de\u7684\u6700\u5927\u8bb0\u5f55\u6570\u3002\u65b0\u8fde\u63a5\u7684\u9ed8\u8ba4\u8bbe\u7f6e\u503c\u662f\u201c unlimited \uff08\u65e0\u9650\uff09\u201d\u3002\u5982\u679c\u5b83\u88ab\u6539\u53d8\u4e86\uff0c\u53ef\u4ee5\u8bbe\u5b9a\u91cd\u65b0\u8bbe\u00a0<code>SQL_SELECT_LIMIT<\/code>\u7684\u503c\u5b9a\u4e3a\u00a0<code>DEFAULT<\/code>\u00a0\u4ee5\u5c06\u5b83\u6062\u590d\u4e3a\u9ed8\u8ba4\u503c\u3002\u5f53\u00a0<code>SELECT<\/code>\u00a0\u8bed\u53e5\u4e2d\u6709\u00a0<code>LIMIT<\/code>\u00a0\u5206\u53e5\u65f6\uff0c\u00a0<code>LIMIT<\/code>\u00a0\u4f18\u5148\u7ea7\u9ad8\u4e8e\u00a0<code>SQL_SELECT_LIMIT<\/code>\u00a0\u7684\u503c\u3002\u00a0\n\n<\/dd>\n<dt><code>SQL_WARNINGS = {0 | 1}<\/code><\/dt>\n<dd>\u5b83\u51b3\u5b9a\u4e86\u5728\u6267\u884c\u5355\u884c\u00a0<code>INSERT<\/code>\u00a0\u8bed\u53e5(\u8bd1\u8005\u6ce8\uff1a\u4e00\u6b21\u53ea\u6709\u4e00\u4e2a\u00a0<code>INSERT<\/code>\u00a0\u8bed\u53e5)\u53d1\u751f\u9519\u8bef\u7684\u60c5\u51b5\u4e0b\uff0c\u662f\u5426\u8981\u62a5\u544a\u9519\u8bef\u4fe1\u606f\u3002\u5b83\u7684\u9ed8\u8ba4\u503c\u662f\u00a0<code><\/code>\u00a0\uff0c\u5982\u679c\u8bbe\u7f6e\u4e3a\u00a0<code>1<\/code>\u00a0\uff0c\u5219\u4f1a\u5728\u53d1\u751f\u9519\u8bef\u65f6\u62a5\u544a\u9519\u8bef\u4fe1\u606f\u3002\u8fd9\u4e2a\u53d8\u91cf\u662f\u5728 MySQL 3.22.11 \u4e2d\u65b0\u589e\u7684\u3002\u00a0\n\n<\/dd>\n<dt><code>TIMESTAMP = {&lt;var&gt;timestamp_value&lt;\/var&gt;&nbsp;| DEFAULT}<\/code><\/dt>\n<dd>\u5b83\u53ef\u4ee5\u8bbe\u5b9a\u7cfb\u7edf\u65f6\u95f4\u3002\u5b83\u7528\u4e8e\u53d6\u4e8c\u8fdb\u5236\u65e5\u5fd7\u7528\u4e8e\u6062\u590d\u8bb0\u5f55\u65f6\u6765\u53d6\u5f97\u539f\u59cb\u65f6\u95f4\u6233\u3002<code>timestamp_value<\/code>\u00a0\u5fc5\u987b\u662f Unix \u65f6\u95f4\u6233\uff0c\u800c\u4e0d\u662f MySQL \u65f6\u95f4\u6233\u3002\u00a0\n\n<\/dd>\n<dt><code>UNIQUE_CHECKS = {0 | 1}<\/code><\/dt>\n<dd>\u5982\u679c\u8bbe\u5b9a\u4e3a\u00a0<code>1<\/code>\u00a0\uff08\u9ed8\u8ba4\u503c\uff09\uff0c\u5c31\u4f1a\u5bf9\u00a0<code>InnoDB<\/code>\u00a0\u8868\u7684\u7b2c\u4e8c\u7d22\u5f15\u505a\u552f\u4e00\u6027\u68c0\u67e5\u3002\u5982\u679c\u8bbe\u7f6e\u4e3a\u00a0<code><\/code>\u00a0\uff0c\u5c31\u4e0d\u518d\u505a\u552f\u4e00\u6027\u68c0\u67e5\u3002\u8fd9\u4e2a\u53d8\u91cf\u662f\u5728 MySQL 3.23.52 \u4e2d\u65b0\u589e\u7684\u3002\u8be6\u60c5\u8bf7\u770b\u201c<a>16.7.4\u00a0<code>FOREIGN KEY<\/code>\u00a0Constraints<\/a>\u201d\u3002<\/dd><\/dl>","protected":false},"excerpt":{"rendered":"<p>SET\u00a0\u53ef\u4ee5\u7528\u4e8e\u8bbe\u7f6e\u5404\u79cd\u53d8\u91cf\u6216\u8005\u9009\u9879\u3002 SHOW\u00a0\u53ef\u4ee5\u4ee5\u5404\u79cd\u5f62\u5f0f\u63cf\u8ff0\u6570\u636e\u5e93\u7cfb\u7edf\u7684\u4fe1\u606f\uff0c\u8bf8\u5982\u6570\u636e\u8868\uff0c\u5b57\u6bb5\uff0c\u670d\u52a1\u5668\u72b6\u6001\u7b49\u7b49\u3002\u5927\u81f4\u6709\u4ee5\u4e0b\u8fd9\u4e9b\u65b9\u6cd5\uff1a SHOW [FULL] COLUMNS FROM tbl_&#46;&#46;&#46;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[100],"class_list":["post-1137","post","type-post","status-publish","format-standard","hentry","category-linux","tag-mysql"],"_links":{"self":[{"href":"https:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/posts\/1137","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/comments?post=1137"}],"version-history":[{"count":1,"href":"https:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/posts\/1137\/revisions"}],"predecessor-version":[{"id":1138,"href":"https:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/posts\/1137\/revisions\/1138"}],"wp:attachment":[{"href":"https:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/media?parent=1137"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/categories?post=1137"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/tags?post=1137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}