{"id":454,"date":"2020-12-08T15:47:39","date_gmt":"2020-12-08T07:47:39","guid":{"rendered":"http:\/\/log.tanxiaodian.com\/?p=454"},"modified":"2020-12-08T16:10:49","modified_gmt":"2020-12-08T08:10:49","slug":"mysql-%e6%9f%a5%e8%af%a2%e6%8e%92%e8%a1%8c%e6%a6%9c","status":"publish","type":"post","link":"https:\/\/log.tanxiaodian.com\/?p=454","title":{"rendered":"mysql \u67e5\u8be2\u6392\u884c\u699c"},"content":{"rendered":"\n

\u8f6c\u81ea:https:\/\/www.jb51.net\/article\/148757.htm<\/p>\n\n\n\n

\"\"
thinkphp\u7684\u5b9e\u73b0
<\/figcaption><\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n

\u672c\u6587\u4e3b\u8981\u4ecb\u7ecd\u4e86\u5173\u4e8eMYSQL\u5b9e\u73b0\u6392\u540d\u53ca\u67e5\u8be2\u6307\u5b9a\u7528\u6237\u6392\u540d\u529f\u80fd\uff08\u5e76\u5217\u6392\u540d\u529f\u80fd\uff09\u7684\u76f8\u5173\u5185\u5bb9\uff0c\u5206\u4eab\u51fa\u6765\u4f9b\u5927\u5bb6\u53c2\u8003\u5b66\u4e60\uff0c\u4e0b\u9762\u8bdd\u4e0d\u591a\u8bf4\u4e86\uff0c\u6765\u4e00\u8d77\u770b\u770b\u8be6\u7ec6\u7684\u4ecb\u7ecd\u5427<\/p>\n\n\n\n

\u8868\u7ed3\u6784\uff1a<\/strong><\/p>\n\n\n\n

1234567891011121314151617181920212223<\/td>CREATE<\/code> TABLE<\/code> test.testsort (<\/code> id <\/code>int<\/code>(11) <\/code>NOT<\/code> NULL<\/code> AUTO_INCREMENT,<\/code> uid <\/code>int<\/code>(11) <\/code>DEFAULT<\/code> 0 COMMENT <\/code>'\u7528\u6237id'<\/code>,<\/code> score <\/code>decimal<\/code>(10, 2) <\/code>DEFAULT<\/code> 0.00 COMMENT <\/code>'\u5206\u6570'<\/code>,<\/code> PRIMARY<\/code> KEY<\/code> (id)<\/code> )<\/code> ENGINE = INNODB<\/code> AUTO_INCREMENT = 1<\/code> CHARACTER<\/code> SET<\/code> utf8<\/code> COLLATE<\/code> utf8_general_ci<\/code> COMMENT = <\/code>'\u6d4b\u8bd5\u6392\u5e8f'<\/code> ROW_FORMAT = <\/code>DYNAMIC<\/code>;<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u601d\u8def\uff1a<\/strong>\u53ef\u4ee5\u5148\u6392\u5e8f\uff0c\u518d\u5bf9\u7ed3\u679c\u8fdb\u884c\u7f16\u53f7\uff1b\u4e5f\u53ef\u4ee5\u5148\u67e5\u8be2\u7ed3\u679c\uff0c\u518d\u6392\u5e8f\u7f16\u53f7\u3002<\/p>\n\n\n\n

\u8bf4\u660e\uff1a<\/strong><\/p>\n\n\n\n

@rownum := @rownum + 1 \u4e2d := \u662f\u8d4b\u503c\u7684\u4f5c\u7528\uff0c\u8fd9\u53e5\u8bdd\u7684\u610f\u601d\u662f\u5148\u6267\u884c@rownum + 1\uff0c\u7136\u540e\u628a\u503c\u8d4b\u7ed9@rownum\uff1b<\/p>\n\n\n\n

(SELECT @rownum := 0) r \u8fd9\u53e5\u8bdd\u7684\u610f\u601d\u662f\u8bbe\u7f6erownum\u5b57\u6bb5\u7684\u521d\u59cb\u503c\u4e3a0\uff0c\u5373\u7f16\u53f7\u4ece1\u5f00\u59cb\u3002<\/p>\n\n\n\n

\u5b9e\u73b0\u6392\u540d\uff1a<\/strong><\/p>\n\n\n\n

\u65b9\u6cd5\u4e00\uff1a<\/p>\n\n\n\n

123<\/td>SELECT<\/code> t.*, @rownum := @rownum + 1 <\/code>AS<\/code> rownum<\/code> FROM<\/code> (<\/code>SELECT<\/code> @rownum := 0) r, (<\/code>SELECT<\/code> * <\/code>FROM<\/code> testsort <\/code>ORDER<\/code> BY<\/code> score <\/code>DESC<\/code>) <\/code>AS<\/code> t;<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u65b9\u6cd5\u4e8c\uff1a<\/p>\n\n\n\n

12345<\/td>SELECT<\/code> t.*, @rownum := @rownum + 1 <\/code>AS<\/code> rownum<\/code> FROM<\/code> (<\/code>SELECT<\/code> @rownum := 0) r, testsort <\/code>AS<\/code> t<\/code> ORDER<\/code> BY<\/code> t.score <\/code>DESC<\/code>;<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u7ed3\u679c\uff1a<\/p>\n\n\n\n

\"\"\/<\/figure>\n\n\n\n

\u67e5\u770b\u6307\u5b9a\u7528\u6237\u6392\u540d\uff1a<\/strong><\/p>\n\n\n\n

\u65b9\u6cd5\u4e00\uff1a<\/p>\n\n\n\n

1234567891011<\/td>SELECT<\/code> b.* <\/code>FROM<\/code> (<\/code> SELECT<\/code> t.*, @rownum := @rownum + 1 <\/code>AS<\/code> rownum<\/code> FROM<\/code> (<\/code>SELECT<\/code> @rownum := 0) r,<\/code> (<\/code>SELECT<\/code> * <\/code>FROM<\/code> testsort <\/code>ORDER<\/code> BY<\/code> score <\/code>DESC<\/code>) <\/code>AS<\/code> t<\/code> ) <\/code>AS<\/code> b <\/code>WHERE<\/code> b.uid = 222;<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u65b9\u6cd5\u4e8c:<\/p>\n\n\n\n

1234567891011<\/td>SELECT<\/code> b.* <\/code>from<\/code> (<\/code> SELECT<\/code> t.*, @rownum := @rownum + 1 <\/code>AS<\/code> rownum<\/code> FROM<\/code> (<\/code>SELECT<\/code> @rownum := 0) r, testsort <\/code>AS<\/code> t<\/code> ORDER<\/code> BY<\/code> t.score <\/code>DESC<\/code> ) <\/code>as<\/code> b <\/code>where<\/code> b.uid = 222;<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u7ed3\u679c\uff1a<\/p>\n\n\n\n

\"\"\/<\/figure>\n\n\n\n

\u5b9e\u73b0\u5e76\u5217\u6392\u540d\uff08\u76f8\u540c\u5206\u6570\u6392\u540d\u76f8\u540c\uff09\uff1a<\/strong><\/p>\n\n\n\n

\u67e5\u8be2\u6307\u5b9a\u7528\u6237\u5e76\u5217\u6392\u540d:<\/strong><\/p>\n\n\n\n

\u603b\u7ed3<\/strong><\/p>\n\n\n\n

\u4ee5\u4e0a\u5c31\u662f\u8fd9\u7bc7\u6587\u7ae0\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u5e0c\u671b\u672c\u6587\u7684\u5185\u5bb9\u5bf9\u5927\u5bb6\u7684\u5b66\u4e60\u6216\u8005\u5de5\u4f5c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u5b66\u4e60\u4ef7\u503c\uff0c\u5982\u679c\u6709\u7591\u95ee\u5927\u5bb6\u53ef\u4ee5\u7559\u8a00\u4ea4\u6d41\uff0c\u8c22\u8c22\u5927\u5bb6\u5bf9\u811a\u672c\u4e4b\u5bb6\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u8f6c\u81ea:https:\/\/www.jb51.net\/a…<\/p>\n

Continue readingmysql \u67e5\u8be2\u6392\u884c\u699c<\/span><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[43],"_links":{"self":[{"href":"https:\/\/log.tanxiaodian.com\/index.php?rest_route=\/wp\/v2\/posts\/454"}],"collection":[{"href":"https:\/\/log.tanxiaodian.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/log.tanxiaodian.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/log.tanxiaodian.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/log.tanxiaodian.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=454"}],"version-history":[{"count":2,"href":"https:\/\/log.tanxiaodian.com\/index.php?rest_route=\/wp\/v2\/posts\/454\/revisions"}],"predecessor-version":[{"id":460,"href":"https:\/\/log.tanxiaodian.com\/index.php?rest_route=\/wp\/v2\/posts\/454\/revisions\/460"}],"wp:attachment":[{"href":"https:\/\/log.tanxiaodian.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=454"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/log.tanxiaodian.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=454"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/log.tanxiaodian.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}