{"id":153,"date":"2010-10-14T23:41:42","date_gmt":"2010-10-14T15:41:42","guid":{"rendered":"http:\/\/www.myvoipapp.com\/blogs\/yxh\/?p=153"},"modified":"2019-02-12T20:11:57","modified_gmt":"2019-02-12T12:11:57","slug":"mysql%e6%9f%a5%e8%af%a2%e7%bb%93%e6%9e%9c%e4%b8%ad%e5%8e%bb%e6%8e%89%e9%87%8d%e5%a4%8d%e7%9a%84%e5%80%bc","status":"publish","type":"post","link":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/2010\/10\/14\/mysql%e6%9f%a5%e8%af%a2%e7%bb%93%e6%9e%9c%e4%b8%ad%e5%8e%bb%e6%8e%89%e9%87%8d%e5%a4%8d%e7%9a%84%e5%80%bc\/","title":{"rendered":"MySQL\u67e5\u8be2\u7ed3\u679c\u4e2d\u53bb\u6389\u91cd\u590d\u7684\u503c"},"content":{"rendered":"

\u4e00\u4e2a\u7b80\u5355\u7684\u5e94\u7528\uff0c\u67e5\u8be2\u6570\u636e\u5e93\u4e2d\u7684\u7528\u6237\u540d\uff0c\u540c\u65f6\u53bb\u6389\u5176\u4ed6\u91cd\u540d\u7684\u7528\u6237\u3002\u6d4b\u8bd5\u6570\u636e\u5e93\u5982\u4e0b\uff1a<\/p>\n

mysql> select name from demo;
\n+———+
\n| name\u00a0\u00a0\u00a0 |
\n+———+
\n| yxh\u00a0\u00a0\u00a0\u00a0 |
\n| yxh\u00a0\u00a0\u00a0\u00a0 |
\n| default |
\n+———+<\/p>\n

\u67e5\u8be2\u65f6\uff0c\u53ea\u8981\u9650\u5b9a\u5173\u952e\u8bcd\u2018distinct\u2019\u5373\u53ef\uff0c\u4f8b\u5982\uff1a<\/p>\n

mysql> select distinct name from demo where name != ‘default’;
\n+——+
\n| name |
\n+——+
\n| yxh\u00a0 |
\n+——+
\n1 row in set (0.02 sec)<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e00\u4e2a\u7b80\u5355\u7684\u5e94\u7528\uff0c\u67e5\u8be2\u6570\u636e\u5e93\u4e2d\u7684\u7528\u6237\u540d\uff0c\u540c\u65f6\u53bb\u6389\u5176\u4ed6\u91cd\u540d\u7684\u7528\u6237\u3002\u6d4b\u8bd5\u6570\u636e\u5e93\u5982\u4e0b\uff1a mysql> select name from demo; +&#8212…<\/p>\n

Read More Read More<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[10,60,59],"class_list":["post-153","post","type-post","status-publish","format-standard","hentry","category-6","tag-mysql","tag-select","tag-sql"],"_links":{"self":[{"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/posts\/153","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/comments?post=153"}],"version-history":[{"count":2,"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/posts\/153\/revisions"}],"predecessor-version":[{"id":1950,"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/posts\/153\/revisions\/1950"}],"wp:attachment":[{"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/media?parent=153"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/categories?post=153"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/wp-json\/wp\/v2\/tags?post=153"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}