{"id":8989,"date":"2023-11-28T20:50:21","date_gmt":"2023-11-28T12:50:21","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=8989"},"modified":"2023-11-28T20:50:26","modified_gmt":"2023-11-28T12:50:26","slug":"mysql-zhong-chuang-jian-suo-yin-de-san-zhong-fang-3","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/mysql-zhong-chuang-jian-suo-yin-de-san-zhong-fang-3\/","title":{"rendered":"MySQL\u4e2d\u521b\u5efa\u7d22\u5f15\u7684\u4e09\u79cd\u65b9\u5f0f\uff1f"},"content":{"rendered":"<p>\u7b2c\u4e00\u79cd\u65b9\u5f0f\uff1a\u5728\u6267\u884cCREATE TABLE\u65f6\u521b\u5efa\u7d22\u5f15<br \/>\nCREATE TABLE user_index2 ( id INT auto_increment PRIMARY KEY, first_name VARCHAR (16), last_name VARCHAR (16), id_card VARCHAR (18), information text, KEY name (first_name, last_name), FULLTEXT<br \/>\nKEY (information), UNIQUE KEY (id_card))\uff1b<br \/>\n\u7b2c\u4e8c\u79cd\u65b9\u5f0f\uff1a\u4f7f\u7528ALTER TABLE\u547d\u4ee4\u53bb\u589e\u52a0\u7d22\u5f15<br \/>\nALTER TABLE table_name ADD INDEX index_name (column_list)\uff1b<br \/>\n1\u3001\tALTER TABLE\u7528\u6765\u521b\u5efa\u666e\u901a\u7d22\u5f15\u3001UNIQUE\u7d22\u5f15\u6216PRIMARY KEY\u7d22\u5f15\u3002<br \/>\n2\u3001\t\u5176\u4e2dtable_name\u662f\u8981\u589e\u52a0\u7d22\u5f15\u7684\u8868\u540d\uff0ccolumn_list\u6307\u51fa\u5bf9\u54ea\u4e9b\u5217\u8fdb\u884c\u7d22\u5f15\uff0c\u591a\u5217\u65f6\u5404\u5217\u4e4b\u95f4\u7528\u9017\u53f7\u5206\u9694\u3002<br \/>\n3\u3001\t\u7d22\u5f15\u540dindex_name\u53ef\u81ea\u5df1\u547d\u540d\uff0c\u7f3a\u7701\u65f6\uff0cMySQL\u5c06\u6839\u636e\u7b2c\u4e00\u4e2a\u7d22\u5f15\u5217\u8d4b\u4e00\u4e2a\u540d\u79f0\u3002\u53e6\u5916, ALTER TABLE\u5141\u8bb8\u5728\u5355\u4e2a\u8bed\u53e5\u4e2d\u66f4\u6539\u591a\u4e2a\u8868\uff0c\u56e0\u6b64\u53ef\u4ee5\u5728\u540c\u65f6\u521b\u5efa\u591a\u4e2a\u7d22\u5f15\u3002<br \/>\n4\u3001\t\u7b2c\u4e09\u79cd\u65b9\u5f0f\uff1a\u4f7f\u7528CREATE INDEX\u547d\u4ee4\u521b\u5efa<br \/>\nCREATE INDEX index_name ON table_name (column_list)\uff1b<br \/>\nCREATE INDEX\u53ef\u5bf9\u8868\u589e\u52a0\u666e\u901a\u7d22\u5f15\u6216UNIQUE\u7d22\u5f15\u3002(\u4f46\u662f\uff0c\u4e0d\u80fd\u521b\u5efaPRIMARY KEY\u7d22\u5f15)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7b2c\u4e00\u79cd\u65b9\u5f0f\uff1a\u5728\u6267\u884cCREATE TABLE\u65f6\u521b\u5efa\u7d22\u5f15 CREATE TABLE user_index2 ( i [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[102],"tags":[],"class_list":["post-8989","post","type-post","status-publish","format-standard","hentry","category-db"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8989","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=8989"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8989\/revisions"}],"predecessor-version":[{"id":8990,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8989\/revisions\/8990"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=8989"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=8989"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=8989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}