{"id":2062,"date":"2023-06-19T18:07:57","date_gmt":"2023-06-19T10:07:57","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=2062"},"modified":"2023-06-19T18:07:57","modified_gmt":"2023-06-19T10:07:57","slug":"sql%e9%ab%98%e7%ba%a7%e7%af%87%ef%bd%9e%e8%a7%86%e5%9b%be%e5%92%8c%e4%b8%b4%e6%97%b6%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/mysql\/sql%e9%ab%98%e7%ba%a7%e7%af%87%ef%bd%9e%e8%a7%86%e5%9b%be%e5%92%8c%e4%b8%b4%e6%97%b6%e8%a1%a8\/","title":{"rendered":"SQL\u9ad8\u7ea7\u7bc7\uff5e\u89c6\u56fe\u548c\u4e34\u65f6\u8868"},"content":{"rendered":"
\n

SQL\u4e2d\u7684\u89c6\u56fe\uff08View\uff09\u548c\u4e34\u65f6\u8868\uff08Temporary Table\uff09\u90fd\u662f\u7528\u4e8e\u6570\u636e\u5904\u7406\u548c\u5206\u6790\u7684\u91cd\u8981\u5de5\u5177\u3002\u5b83\u4eec\u5177\u6709\u5404\u81ea\u72ec\u7279\u7684\u7279\u70b9\u548c\u7528\u9014\uff0c\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5b83\u4eec\u7684\u5b9a\u4e49\u3001\u7528\u9014\u3001\u4f18\u7f3a\u70b9\u4ee5\u53ca\u4f7f\u7528\u65b9\u6cd5\u7b49\u76f8\u5173\u5185\u5bb9\u3002<\/span><\/p>\n

\u89c6\u56fe\uff08View\uff09<\/h1>\n

\u5b9a\u4e49<\/h1>\n

\u89c6\u56fe\u662f\u4e00\u4e2a\u865a\u62df\u7684\u8868\uff0c\u5b83\u5b9e\u9645\u4e0a\u5e76\u4e0d\u5b58\u50a8\u4efb\u4f55\u6570\u636e\uff0c\u800c\u662f\u57fa\u4e8e\u4e00\u4e2a\u6216\u591a\u4e2a\u8868\uff08\u6216\u5176\u4ed6\u89c6\u56fe\uff09\u7684\u67e5\u8be2\u7ed3\u679c\u96c6\u5408\u800c\u751f\u6210\u7684\u3002\u89c6\u56fe\u672c\u8eab\u5e76\u4e0d\u5177\u6709\u4efb\u4f55\u6570\u636e\uff0c\u5b83\u53ea\u662f\u4e00\u79cd\u903b\u8f91\u7ed3\u6784\uff0c\u7528\u4e8e\u5bf9\u6570\u636e\u7684\u8bbf\u95ee\u548c\u64cd\u4f5c\u3002\u5728\u89c6\u56fe\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7 SQL \u8bed\u53e5\u8fdb\u884c\u6570\u636e\u8fc7\u6ee4\u3001\u6392\u5e8f\u3001\u5206\u7ec4\u3001\u805a\u5408\u7b49\u64cd\u4f5c\uff0c\u5c31\u50cf\u64cd\u4f5c\u5b9e\u9645\u7684\u7269\u7406\u8868\u4e00\u6837\u3002<\/span><\/p>\n

\u7528\u9014<\/h1>\n

\u89c6\u56fe\u4e3b\u8981\u7528\u4e8e\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/span><\/p>\n

\u7b80\u5316\u67e5\u8be2\uff1a\u901a\u8fc7\u5c06\u590d\u6742\u7684\u67e5\u8be2\u8bed\u53e5\u5c01\u88c5\u6210\u89c6\u56fe\uff0c\u4f7f\u5f97\u67e5\u8be2\u53d8\u5f97\u7b80\u5355\u660e\u4e86\uff0c\u6613\u4e8e\u7406\u89e3\u548c\u7ef4\u62a4\u3002<\/span><\/p>\n

\u6570\u636e\u5b89\u5168\u6027\uff1a\u901a\u8fc7\u89c6\u56fe\u53ef\u4ee5\u9650\u5236\u7528\u6237\u5bf9\u67d0\u4e9b\u5217\u6216\u884c\u7684\u8bbf\u95ee\u6743\u9650\uff0c\u4fdd\u8bc1\u6570\u636e\u7684\u5b89\u5168\u6027\u3002<\/span><\/p>\n

\u6570\u636e\u62bd\u8c61\uff1a\u89c6\u56fe\u53ef\u4ee5\u9690\u85cf\u5e95\u5c42\u8868\u7684\u590d\u6742\u6027\uff0c\u53ea\u66b4\u9732\u7528\u6237\u9700\u8981\u7684\u6570\u636e\uff0c\u4ece\u800c\u5b9e\u73b0\u6570\u636e\u62bd\u8c61\u7684\u76ee\u7684\u3002<\/span><\/p>\n

\u4f18\u7f3a\u70b9<\/h1>\n

\u4f7f\u7528\u89c6\u56fe\u6709\u4ee5\u4e0b\u51e0\u4e2a\u4f18\u70b9\uff1a<\/span><\/p>\n

\u7b80\u5316\u590d\u6742\u67e5\u8be2\uff1a\u901a\u8fc7\u5c06\u590d\u6742\u67e5\u8be2\u8bed\u53e5\u5c01\u88c5\u6210\u89c6\u56fe\uff0c\u4f7f\u5f97\u67e5\u8be2\u53d8\u5f97\u7b80\u5355\u660e\u4e86\uff0c\u6613\u4e8e\u7406\u89e3\u548c\u7ef4\u62a4\u3002<\/span><\/p>\n

\u6570\u636e\u5b89\u5168\u6027\uff1a\u89c6\u56fe\u53ef\u4ee5\u9650\u5236\u7528\u6237\u5bf9\u67d0\u4e9b\u5217\u6216\u884c\u7684\u8bbf\u95ee\u6743\u9650\uff0c\u4fdd\u8bc1\u6570\u636e\u7684\u5b89\u5168\u6027\u3002<\/span><\/p>\n

\u6570\u636e\u62bd\u8c61\uff1a\u89c6\u56fe\u53ef\u4ee5\u9690\u85cf\u5e95\u5c42\u8868\u7684\u590d\u6742\u6027\uff0c\u53ea\u66b4\u9732\u7528\u6237\u9700\u8981\u7684\u6570\u636e\uff0c\u4ece\u800c\u5b9e\u73b0\u6570\u636e\u62bd\u8c61\u7684\u76ee\u7684\u3002<\/span><\/p>\n

\u4f7f\u7528\u89c6\u56fe\u4e5f\u6709\u4ee5\u4e0b\u51e0\u4e2a\u7f3a\u70b9\uff1a<\/span><\/p>\n

\u6027\u80fd\u95ee\u9898\uff1a\u89c6\u56fe\u672c\u8d28\u4e0a\u662f\u4e00\u4e2a\u67e5\u8be2\u8bed\u53e5\uff0c\u6bcf\u6b21\u67e5\u8be2\u90fd\u9700\u8981\u91cd\u65b0\u8ba1\u7b97\uff0c\u5982\u679c\u67e5\u8be2\u8bed\u53e5\u975e\u5e38\u590d\u6742\uff0c\u6027\u80fd\u53ef\u80fd\u4f1a\u53d7\u5230\u5f71\u54cd\u3002<\/span><\/p>\n

\u53ef\u8bfb\u6027\u95ee\u9898\uff1a\u7531\u4e8e\u89c6\u56fe\u662f\u4e00\u4e2a\u865a\u62df\u8868\uff0c\u5b83\u7684\u7ed3\u6784\u53ef\u80fd\u4f1a\u6bd4\u5b9e\u9645\u7684\u7269\u7406\u8868\u66f4\u52a0\u590d\u6742\uff0c\u5bfc\u81f4\u53ef\u8bfb\u6027\u53d8\u5dee\u3002<\/span><\/p>\n

\u66f4\u65b0\u95ee\u9898\uff1a\u89c6\u56fe\u672c\u8eab\u5e76\u4e0d\u5b58\u50a8\u4efb\u4f55\u6570\u636e\uff0c\u5982\u679c\u5e95\u5c42\u8868\u53d1\u751f\u4e86\u53d8\u5316\uff0c\u90a3\u4e48\u89c6\u56fe\u7684\u7ed3\u679c\u4e5f\u4f1a\u53d1\u751f\u53d8\u5316\u3002\u4f46\u662f\uff0c\u5982\u679c\u89c6\u56fe\u662f\u7531\u591a\u4e2a\u8868\u5173\u8054\u800c\u6210\uff0c\u66f4\u65b0\u6570\u636e\u65f6\u53ef\u80fd\u4f1a\u53d1\u751f\u6b67\u4e49\uff0c\u4ece\u800c\u5bfc\u81f4\u66f4\u65b0\u5931\u8d25\u3002<\/span><\/p>\n

\u4f7f\u7528\u65b9\u6cd5<\/h1>\n

\u521b\u5efa\u89c6\u56fe\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/span><\/p>\n

CREATE<\/span> VIEW<\/span> view_name AS<\/span>
SELECT<\/span> column1, column2, ...
FROM<\/span> table_name
WHERE<\/span> condition;
<\/code><\/pre>\n
\u5176\u4e2d\uff0cview_name \u662f\u89c6\u56fe\u7684\u540d\u79f0\uff0ccolumn1, column2, ... \u662f\u89c6\u56fe\u4e2d\u9700\u8981\u663e\u793a\u7684\u5217\uff0c<\/span>table_name \u662f\u9700\u8981\u67e5\u8be2\u7684\u8868\u7684\u540d\u79f0\uff0c<\/span>condition \u662f\u67e5\u8be2\u6761\u4ef6\u3002\u901a\u8fc7\u8fd9\u4e2a\u8bed\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a <\/span>view_name \u7684\u89c6\u56fe\uff0c\u8be5\u89c6\u56fe\u57fa\u4e8e\u8868 table_name \u7684\u67e5\u8be2\u7ed3\u679c\uff0c\u663e\u793a\u5217\u4e3a column1, column2, ...\uff0c\u5e76\u4e14\u6ee1\u8db3\u67e5\u8be2\u6761\u4ef6 condition\u3002<\/span><\/p>\n
\u4f7f\u7528\u89c6\u56fe\u7684\u65b9\u6cd5\u548c\u4f7f\u7528\u8868\u7c7b\u4f3c\uff0c\u53ef\u4ee5\u901a\u8fc7 SELECT \u8bed\u53e5\u67e5\u8be2\u89c6\u56fe\u4e2d\u7684\u6570\u636e\uff0c\u4f8b\u5982\uff1a<\/span><\/p>\n
SELECT<\/span> * FROM<\/span> view_name;
<\/code><\/pre>\n
\u67e5\u8be2\u8bed\u53e5\u4e0e\u67e5\u8be2\u8868\u7684\u8bed\u53e5\u76f8\u540c\uff0c\u53ea\u662f\u5c06\u8868\u540d\u6362\u6210\u4e86\u89c6\u56fe\u540d\u3002\u5f53\u6211\u4eec\u67e5\u8be2\u89c6\u56fe\u65f6\uff0c\u5b9e\u9645\u4e0a\u662f\u5728\u6267\u884c\u8be5\u89c6\u56fe\u6240\u5bf9\u5e94\u7684\u67e5\u8be2\u8bed\u53e5\uff0c\u7136\u540e\u8fd4\u56de\u67e5\u8be2\u7ed3\u679c\u3002<\/span><\/p>\n
\u6211\u4eec\u8fd8\u53ef\u4ee5\u901a\u8fc7 ALTER VIEW \u548c DROP VIEW \u8bed\u53e5\u4fee\u6539\u6216\u5220\u9664\u89c6\u56fe\u3002\u4f8b\u5982\uff1a<\/span><\/p>\n
ALTER<\/span> VIEW<\/span> view_name AS<\/span>
SELECT<\/span> column1, column3, ...
FROM<\/span> table_name
WHERE<\/span> condition;
<\/code><\/pre>\n
\u4f7f\u7528 ALTER VIEW \u53ef\u4ee5\u4fee\u6539\u89c6\u56fe\u7684\u5b9a\u4e49\uff0c\u4f8b\u5982\u4fee\u6539\u663e\u793a\u7684\u5217\u3001\u67e5\u8be2\u6761\u4ef6\u7b49\u3002\u800c\u4f7f\u7528 DROP VIEW \u53ef\u4ee5\u5220\u9664\u89c6\u56fe\u3002<\/span><\/p>\n
\u4e34\u65f6\u8868\uff08Temporary Table\uff09<\/h1>\n
\u5b9a\u4e49<\/h1>\n
\u4e34\u65f6\u8868\u662f\u4e00\u79cd\u4e34\u65f6\u6027\u7684\u8868\uff0c\u5b83\u662f\u5728\u8fd0\u884c\u65f6\u52a8\u6001\u521b\u5efa\u7684\uff0c\u5e76\u4e14\u53ea\u5728\u5f53\u524d\u4f1a\u8bdd\u4e2d\u5b58\u5728\u3002\u4e34\u65f6\u8868\u4e0e\u666e\u901a\u8868\u7c7b\u4f3c\uff0c\u53ef\u4ee5\u50cf\u666e\u901a\u8868\u4e00\u6837\u8fdb\u884c\u6570\u636e\u63d2\u5165\u3001\u5220\u9664\u3001\u4fee\u6539\u548c\u67e5\u8be2\u64cd\u4f5c\u3002\u4f46\u662f\uff0c\u5b83\u4eec\u4e0d\u4f1a\u88ab\u6301\u4e45\u5316\u5230\u78c1\u76d8\u4e0a\uff0c\u5f53\u4f1a\u8bdd\u7ed3\u675f\u65f6\uff0c\u4e34\u65f6\u8868\u5c31\u4f1a\u88ab\u81ea\u52a8\u5220\u9664\u3002<\/span><\/p>\n
\u7528\u9014<\/h1>\n
\u4e34\u65f6\u8868\u4e3b\u8981\u7528\u4e8e\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/span><\/p>\n
\u4e2d\u95f4\u7ed3\u679c\u5b58\u50a8\uff1a\u5728\u4e00\u4e9b\u590d\u6742\u7684\u67e5\u8be2\u4e2d\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u591a\u6b21\u4f7f\u7528\u76f8\u540c\u7684\u4e2d\u95f4\u7ed3\u679c\uff0c\u4e34\u65f6\u8868\u53ef\u4ee5\u7528\u6765\u5b58\u50a8\u8fd9\u4e9b\u4e2d\u95f4\u7ed3\u679c\uff0c\u907f\u514d\u91cd\u590d\u8ba1\u7b97\uff0c\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002<\/span><\/p>\n
\u6570\u636e\u5206\u6790\uff1a\u5728\u6570\u636e\u5206\u6790\u4e2d\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u5bf9\u6570\u636e\u8fdb\u884c\u591a\u6b21\u7b5b\u9009\u3001\u6392\u5e8f\u3001\u805a\u5408\u7b49\u64cd\u4f5c\uff0c\u4e34\u65f6\u8868\u53ef\u4ee5\u7528\u6765\u5b58\u50a8\u4e2d\u95f4\u7ed3\u679c\uff0c\u65b9\u4fbf\u6211\u4eec\u8fdb\u884c\u6570\u636e\u5206\u6790\u3002<\/span><\/p>\n
\u6570\u636e\u5907\u4efd\uff1a\u5728\u67d0\u4e9b\u573a\u666f\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u5907\u4efd\u67d0\u4e2a\u8868\u4e2d\u7684\u6570\u636e\uff0c\u4f46\u662f\u53c8\u4e0d\u5e0c\u671b\u5bf9\u539f\u8868\u8fdb\u884c\u4fee\u6539\uff0c\u8fd9\u65f6\u53ef\u4ee5\u4f7f\u7528\u4e34\u65f6\u8868\u6765\u5b58\u50a8\u5907\u4efd\u6570\u636e\u3002<\/span><\/p>\n
\u4f18\u7f3a\u70b9<\/h1>\n
\u4f7f\u7528\u4e34\u65f6\u8868\u6709\u4ee5\u4e0b\u51e0\u4e2a\u4f18\u70b9\uff1a<\/span><\/p>\n
\u4e34\u65f6\u6027\uff1a\u4e34\u65f6\u8868\u53ea\u5728\u5f53\u524d\u4f1a\u8bdd\u4e2d\u5b58\u5728\uff0c\u4e0d\u4f1a\u88ab\u6301\u4e45\u5316\u5230\u78c1\u76d8\u4e0a\uff0c\u4ece\u800c\u51cf\u5c11\u4e86\u78c1\u76d8\u7a7a\u95f4\u7684\u5360\u7528\u3002<\/span><\/p>\n
\u7075\u6d3b\u6027\uff1a\u4e34\u65f6\u8868\u53ef\u4ee5\u7528\u6765\u5b58\u50a8\u4e2d\u95f4\u7ed3\u679c\uff0c\u65b9\u4fbf\u8fdb\u884c\u590d\u6742\u7684\u67e5\u8be2\u548c\u6570\u636e\u5206\u6790\u3002<\/span><\/p>\n
\u5b89\u5168\u6027\uff1a\u4e34\u65f6\u8868\u53ea\u5728\u5f53\u524d\u4f1a\u8bdd\u4e2d\u5b58\u5728\uff0c\u4e0d\u4f1a\u88ab\u5176\u4ed6\u7528\u6237\u8bbf\u95ee\u5230\uff0c\u4ece\u800c\u4fdd\u8bc1\u4e86\u6570\u636e\u7684\u5b89\u5168\u6027\u3002<\/span><\/p>\n
\u4f7f\u7528\u4e34\u65f6\u8868\u4e5f\u6709\u4ee5\u4e0b\u51e0\u4e2a\u7f3a\u70b9\uff1a<\/span><\/p>\n
\u6027\u80fd\u95ee\u9898\uff1a\u4e34\u65f6\u8868\u9700\u8981\u5728\u5185\u5b58\u4e2d\u8fdb\u884c\u64cd\u4f5c\uff0c\u5982\u679c\u6570\u636e\u91cf\u8fc7\u5927\uff0c\u53ef\u80fd\u4f1a\u5f71\u54cd\u67e5\u8be2\u6027\u80fd\u3002<\/span><\/p>\n
\u5b58\u50a8\u9650\u5236\uff1a\u7531\u4e8e\u4e34\u65f6\u8868\u53ea\u5728\u5185\u5b58\u4e2d\u5b58\u5728\uff0c\u56e0\u6b64\u5b58\u50a8\u5bb9\u91cf\u53d7\u5230\u5185\u5b58\u5bb9\u91cf\u7684\u9650\u5236\uff0c\u5982\u679c\u5b58\u50a8\u7684\u6570\u636e\u91cf\u8fc7\u5927\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5185\u5b58\u4e0d\u8db3\u3002<\/span><\/p>\n
\u6570\u636e\u4e22\u5931\uff1a\u7531\u4e8e\u4e34\u65f6\u8868\u662f\u4e34\u65f6\u6027\u7684\uff0c\u5f53\u4f1a\u8bdd\u7ed3\u675f\u65f6\uff0c\u4e34\u65f6\u8868\u5c31\u4f1a\u88ab\u81ea\u52a8\u5220\u9664\uff0c\u56e0\u6b64\u5982\u679c\u9700\u8981\u957f\u671f\u4fdd\u5b58\u6570\u636e\uff0c\u4e0d\u9002\u5408\u4f7f\u7528\u4e34\u65f6\u8868\u3002<\/span><\/p>\n
\u4f7f\u7528<\/h1>\n
\u4f7f\u7528\u4e34\u65f6\u8868\u7684\u8bed\u6cd5\u4e0e\u666e\u901a\u8868\u7c7b\u4f3c\uff0c\u53ea\u662f\u5728\u8868\u540d\u524d\u52a0\u4e0a # \u6216 ## \u524d\u7f00\uff0c\u8868\u793a\u521b\u5efa\u7684\u662f\u4e34\u65f6\u8868\u3002# \u524d\u7f00\u8868\u793a\u521b\u5efa\u7684\u662f\u5c40\u90e8\u4e34\u65f6\u8868\uff0c\u53ea\u5728\u5f53\u524d\u4f1a\u8bdd\u4e2d\u5b58\u5728\uff0c\u800c ## \u524d\u7f00\u8868\u793a\u521b\u5efa\u7684\u662f\u5168\u5c40\u4e34\u65f6\u8868\uff0c\u5bf9\u6240\u6709\u4f1a\u8bdd\u53ef\u89c1\u3002<\/span><\/p>\n
\u4e34\u65f6\u8868\u7684\u521b\u5efa\u548c\u64cd\u4f5c\u53ef\u4ee5\u4f7f\u7528\u4e0e\u666e\u901a\u8868\u76f8\u540c\u7684 SQL \u8bed\u53e5\uff0c\u4f8b\u5982\uff1a<\/span><\/p>\n
-- \u521b\u5efa\u4e34\u65f6\u8868<\/span>
CREATE<\/span> TABLE<\/span> #temp_table (<\/span>
    id<\/span> INT<\/span>,
    name<\/span> VARCHAR<\/span>(50<\/span>),
    age INT<\/span>
);

-- \u63d2\u5165\u6570\u636e<\/span>
INSERT<\/span> INTO<\/span> #temp_table VALUES (1, 'John', 20), (2, 'Mike', 25), (3, 'Tom', 30);<\/span>

-- \u67e5\u8be2\u6570\u636e<\/span>
SELECT<\/span> * FROM<\/span> #temp_table;<\/span>

-- \u4fee\u6539\u6570\u636e<\/span>
UPDATE<\/span> #temp_table SET age = 22 WHERE id = 1;<\/span>

-- \u5220\u9664\u6570\u636e<\/span>
DELETE<\/span> FROM<\/span> #temp_table WHERE id = 2;<\/span>

-- \u5220\u9664\u4e34\u65f6\u8868<\/span>
DROP<\/span> TABLE<\/span> #temp_table;<\/span>
<\/code><\/pre>\n
\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3a #temp_table \u7684\u5c40\u90e8\u4e34\u65f6\u8868\uff0c\u5e76\u5411\u5176\u4e2d\u63d2\u5165\u4e86\u4e00\u4e9b\u6570\u636e\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528 SELECT \u8bed\u53e5\u67e5\u8be2\u4e86\u8be5\u4e34\u65f6\u8868\u4e2d\u7684\u6570\u636e\uff0c\u5e76\u5bf9\u5176\u4e2d\u7684\u6570\u636e\u8fdb\u884c\u4e86\u4fee\u6539\u548c\u5220\u9664\u64cd\u4f5c\u3002\u6700\u540e\uff0c\u6211\u4eec\u4f7f\u7528 DROP TABLE \u8bed\u53e5\u5220\u9664\u4e86\u8be5\u4e34\u65f6\u8868\u3002<\/span><\/p>\n
\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5728\u4f7f\u7528\u4e34\u65f6\u8868\u65f6\uff0c\u6211\u4eec\u9700\u8981\u6ce8\u610f\u4e34\u65f6\u8868\u7684\u751f\u547d\u5468\u671f\u3002\u5c40\u90e8\u4e34\u65f6\u8868\u53ea\u5728\u5f53\u524d\u4f1a\u8bdd\u4e2d\u5b58\u5728\uff0c\u56e0\u6b64\u53ea\u6709\u5728\u5f53\u524d\u4f1a\u8bdd\u4e2d\u624d\u80fd\u8bbf\u95ee\u8be5\u4e34\u65f6\u8868\uff0c\u800c\u5168\u5c40\u4e34\u65f6\u8868\u5bf9\u6240\u6709\u4f1a\u8bdd\u53ef\u89c1\uff0c\u56e0\u6b64\u9700\u8981\u5728\u4f7f\u7528\u5b8c\u6bd5\u540e\u53ca\u65f6\u5220\u9664\uff0c\u907f\u514d\u5bf9\u5176\u4ed6\u4f1a\u8bdd\u9020\u6210\u5f71\u54cd\u3002<\/span><\/p>\n
\u52a0\u6211\u5fae\u4fe1\uff0c\u514d\u8d39\u9762\u8bd5\u8f85\u5bfc\u3001\u5b66\u4e60\u8d44\u6599\u3001\u7b80\u5386\u6a21\u677f\u83b7\u53d6\u3001\u52a0\u5165\u5b66\u4e60\u7fa4\u3002<\/span><\/span><\/section>\n

<\/p>\n
<\/mp-style-type><\/p>\n
\n
\u672c\u7bc7\u6587\u7ae0\u6765\u6e90\u4e8e\u5fae\u4fe1\u516c\u4f17\u53f7:                 IT\u594b\u6597\u7684\u9752\u5e74              <\/p>\n<\/blockquote>\n<\/div>\n","raw":"","protected":false},"excerpt":{"rendered":"
SQL\u4e2d\u7684\u89c6\u56fe\uff08View\uff09\u548c\u4e34\u65f6\u8868\uff08Temporary Table\uff09\u90fd\u662f\u7528\u4e8e\u6570\u636e\u5904\u7406\u548c\u5206\u6790\u7684\u91cd\u8981\u5de5\u5177\u3002\u5b83\u4eec\u5177\u6709\u5404\u81ea\u72ec\u7279\u7684\u7279\u70b9\u548c\u7528\u9014 …<\/p>\n","protected":false},"author":1,"featured_media":2060,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[3],"tags":[],"class_list":["post-2062","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mysql"],"post_thumbnail_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050928271-150x150.jpeg","content_first_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050929786.png","post_medium_image_300":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050928271.jpeg","post_thumbnail_image_624":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050928271.jpeg","post_frist_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050929786.png","post_medium_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050928271.jpeg","post_large_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050928271.jpeg","post_full_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050928271.jpeg","post_all_images":[{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050929786.png","id":"image0"},{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528050929786.png","id":"image1"}],"videoAdId":"","listAd":"0","listAdId":"","listAdEvery":6,"total_comments":0,"category_name":"MySQL","post_date":"2023-06-19","like_count":"0","praiseWord":"\u9f13\u52b1","copyright_state":"","excitationAd":"0","rewardedVideoAdId":"","detailAdId":"","detailAd":"0","enterpriseMinapp":"0","audios":[],"postImageUrl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230519082947553.jpg","avatarurls":[],"related_posts":null,"pageviews":429,"next_post_id":2240,"next_post_title":"52\u6761SQL\u8bed\u53e5\u6027\u80fd\u4f18\u5316\u7b56\u7565\uff0c\u5efa\u8bae\u6536\u85cf","previous_post_id":1724,"previous_post_title":"9\u5927\u8868\u8bbe\u8ba1\u4f18\u5316\u65b9\u6cd5\uff0c\u8ba9 MySQL \u6027\u80fd\u98de\u5347\uff01","_links":{"self":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/2062","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/comments?post=2062"}],"version-history":[{"count":0,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/2062\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/media\/2060"}],"wp:attachment":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/media?parent=2062"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/categories?post=2062"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/tags?post=2062"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}