{"id":152095,"date":"2024-11-01T20:04:20","date_gmt":"2024-11-01T12:04:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/152095\/"},"modified":"2024-11-01T20:04:21","modified_gmt":"2024-11-01T12:04:21","slug":"%e9%81%bf%e5%85%8d%e4%bd%bf%e7%94%a8select%e7%9a%84%e4%b9%9d%e5%80%8b%e7%90%86%e7%94%b1%e5%8f%8a%e5%85%a9%e5%80%8b%e4%be%8b%e5%a4%96%e5%a0%b4%e6%99%af","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/152095\/","title":{"rendered":"\u907f\u514d\u4f7f\u7528SELECT*\u7684\u4e5d\u500b\u7406\u7531\u53ca\u5169\u500b\u4f8b\u5916\u5834\u666f"},"content":{"rendered":"<h1 id=\"%e9%81%bf%e5%85%8d%e4%bd%bf%e7%94%a8select%e7%9a%84%e4%b9%9d%e5%80%8b%e7%90%86%e7%94%b1%e5%8f%8a%e5%85%a9%e5%80%8b%e4%be%8b%e5%a4%96%e5%a0%b4%e6%99%af-ACJXtRVYFA\">\u907f\u514d\u4f7f\u7528SELECT*\u7684\u4e5d\u500b\u7406\u7531\u53ca\u5169\u500b\u4f8b\u5916\u5834\u666f<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u67e5\u8a62\u4e2d\uff0c<code>SELECT *<\/code> \u662f\u4e00\u500b\u5e38\u898b\u7684\u8a9e\u53e5\uff0c\u8a31\u591a\u958b\u767c\u8005\u5728\u64b0\u5beb\u67e5\u8a62\u6642\u6703\u7fd2\u6163\u6027\u5730\u4f7f\u7528\u5b83\u3002\u7136\u800c\uff0c\u9019\u7a2e\u505a\u6cd5\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u53ef\u80fd\u6703\u5e36\u4f86\u4e00\u4e9b\u6f5b\u5728\u7684\u554f\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u907f\u514d\u4f7f\u7528<code>SELECT *<\/code>\u7684\u4e5d\u500b\u7406\u7531\uff0c\u4ee5\u53ca\u5728\u7279\u5b9a\u60c5\u6cc1\u4e0b\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u7684\u5169\u500b\u4f8b\u5916\u5834\u666f\u3002<\/p>\n<h2 id=\"%e9%81%bf%e5%85%8d%e4%bd%bf%e7%94%a8select%e7%9a%84%e4%b9%9d%e5%80%8b%e7%90%86%e7%94%b1-ACJXtRVYFA\">\u907f\u514d\u4f7f\u7528SELECT*\u7684\u4e5d\u500b\u7406\u7531<\/h2>\n<h3 id=\"1-%e6%80%a7%e8%83%bd%e5%95%8f%e9%a1%8c-ACJXtRVYFA\">1. \u6027\u80fd\u554f\u984c<\/h3>\n<p>\u4f7f\u7528<code>SELECT *<\/code>\u6703\u8fd4\u56de\u6240\u6709\u6b04\u4f4d\uff0c\u9019\u53ef\u80fd\u5c0e\u81f4\u4e0d\u5fc5\u8981\u7684\u8cc7\u6599\u50b3\u8f38\uff0c\u7279\u5225\u662f\u5728\u8cc7\u6599\u8868\u4e2d\u6709\u5927\u91cf\u6b04\u4f4d\u6642\u3002\u9019\u6703\u589e\u52a0\u67e5\u8a62\u7684\u57f7\u884c\u6642\u9593\u548c\u7db2\u7d61\u5ef6\u9072\uff0c\u5f71\u97ff\u61c9\u7528\u7a0b\u5f0f\u7684\u6027\u80fd\u3002<\/p>\n<h3 id=\"2-%e8%b3%87%e6%96%99%e5%ae%89%e5%85%a8%e6%80%a7-ACJXtRVYFA\">2. \u8cc7\u6599\u5b89\u5168\u6027<\/h3>\n<p>\u7576\u4f7f\u7528<code>SELECT *<\/code>\u6642\uff0c\u6240\u6709\u6b04\u4f4d\u7684\u8cc7\u6599\u90fd\u6703\u88ab\u8fd4\u56de\uff0c\u5305\u62ec\u654f\u611f\u8cc7\u8a0a\u3002\u9019\u53ef\u80fd\u6703\u5c0e\u81f4\u8cc7\u6599\u6d29\u9732\u7684\u98a8\u96aa\uff0c\u7279\u5225\u662f\u5728\u4e0d\u9700\u8981\u9019\u4e9b\u8cc7\u6599\u7684\u60c5\u6cc1\u4e0b\u3002<\/p>\n<h3 id=\"3-%e5%8f%af%e8%ae%80%e6%80%a7%e5%b7%ae-ACJXtRVYFA\">3. \u53ef\u8b80\u6027\u5dee<\/h3>\n<p>\u4f7f\u7528<code>SELECT *<\/code>\u6703\u4f7f\u67e5\u8a62\u7684\u610f\u5716\u4e0d\u660e\u78ba\uff0c\u5176\u4ed6\u958b\u767c\u8005\u5728\u95b1\u8b80\u4ee3\u78bc\u6642\u53ef\u80fd\u7121\u6cd5\u5feb\u901f\u7406\u89e3\u67e5\u8a62\u7684\u76ee\u7684\u3002\u660e\u78ba\u6307\u5b9a\u6240\u9700\u7684\u6b04\u4f4d\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u78bc\u7684\u53ef\u8b80\u6027\u3002<\/p>\n<h3 id=\"4-%e5%bd%b1%e9%9f%bf%e7%b6%ad%e8%ad%b7%e6%80%a7-ACJXtRVYFA\">4. \u5f71\u97ff\u7dad\u8b77\u6027<\/h3>\n<p>\u5982\u679c\u8cc7\u6599\u8868\u7684\u7d50\u69cb\u767c\u751f\u8b8a\u5316\uff08\u4f8b\u5982\u65b0\u589e\u6216\u522a\u9664\u6b04\u4f4d\uff09\uff0c\u4f7f\u7528<code>SELECT *<\/code>\u7684\u67e5\u8a62\u53ef\u80fd\u6703\u5c0e\u81f4\u932f\u8aa4\u6216\u4e0d\u9810\u671f\u7684\u884c\u70ba\u3002\u660e\u78ba\u6307\u5b9a\u6b04\u4f4d\u53ef\u4ee5\u6e1b\u5c11\u9019\u7a2e\u98a8\u96aa\u3002<\/p>\n<h3 id=\"5-%e4%b8%8d%e5%bf%85%e8%a6%81%e7%9a%84%e8%b3%87%e6%96%99%e8%99%95%e7%90%86-ACJXtRVYFA\">5. \u4e0d\u5fc5\u8981\u7684\u8cc7\u6599\u8655\u7406<\/h3>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u61c9\u7528\u7a0b\u5f0f\u53ef\u80fd\u53ea\u9700\u8981\u7279\u5b9a\u7684\u6b04\u4f4d\u4f86\u9032\u884c\u8655\u7406\u3002\u4f7f\u7528<code>SELECT *<\/code>\u6703\u5c0e\u81f4\u4e0d\u5fc5\u8981\u7684\u8cc7\u6599\u8655\u7406\uff0c\u6d6a\u8cbb\u7cfb\u7d71\u8cc7\u6e90\u3002<\/p>\n<h3 id=\"6-%e6%95%88%e8%83%bd%e7%9b%a3%e6%8e%a7%e5%9b%b0%e9%9b%a3-ACJXtRVYFA\">6. \u6548\u80fd\u76e3\u63a7\u56f0\u96e3<\/h3>\n<p>\u7576\u4f7f\u7528<code>SELECT *<\/code>\u6642\uff0c\u7121\u6cd5\u8f15\u6613\u76e3\u63a7\u67e5\u8a62\u7684\u6548\u80fd\uff0c\u56e0\u70ba\u8fd4\u56de\u7684\u8cc7\u6599\u91cf\u4e0d\u56fa\u5b9a\u3002\u9019\u4f7f\u5f97\u6027\u80fd\u8abf\u512a\u8b8a\u5f97\u66f4\u52a0\u56f0\u96e3\u3002<\/p>\n<h3 id=\"7-%e5%bd%b1%e9%9f%bf%e7%b4%a2%e5%bc%95%e4%bd%bf%e7%94%a8-ACJXtRVYFA\">7. \u5f71\u97ff\u7d22\u5f15\u4f7f\u7528<\/h3>\n<p>\u8cc7\u6599\u5eab\u512a\u5316\u5668\u5728\u57f7\u884c\u67e5\u8a62\u6642\uff0c\u6703\u6839\u64da\u6307\u5b9a\u7684\u6b04\u4f4d\u4f86\u9078\u64c7\u6700\u4f73\u7684\u7d22\u5f15\u3002\u4f7f\u7528<code>SELECT *<\/code>\u53ef\u80fd\u6703\u5c0e\u81f4\u7d22\u5f15\u7121\u6cd5\u88ab\u6709\u6548\u5229\u7528\uff0c\u5f9e\u800c\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n<h3 id=\"8-%e5%a2%9e%e5%8a%a0%e7%b6%b2%e7%b5%a1%e6%b5%81%e9%87%8f-ACJXtRVYFA\">8. \u589e\u52a0\u7db2\u7d61\u6d41\u91cf<\/h3>\n<p>\u8fd4\u56de\u6240\u6709\u6b04\u4f4d\u6703\u589e\u52a0\u7db2\u7d61\u6d41\u91cf\uff0c\u7279\u5225\u662f\u5728\u5927\u578b\u8cc7\u6599\u96c6\u7684\u60c5\u6cc1\u4e0b\u3002\u9019\u4e0d\u50c5\u5f71\u97ff\u61c9\u7528\u7a0b\u5f0f\u7684\u6027\u80fd\uff0c\u9084\u53ef\u80fd\u589e\u52a0\u4f3a\u670d\u5668\u7684\u8ca0\u64d4\u3002<\/p>\n<h3 id=\"9-%e6%b8%9b%e5%b0%91%e5%8f%af%e6%93%b4%e5%b1%95%e6%80%a7-ACJXtRVYFA\">9. \u6e1b\u5c11\u53ef\u64f4\u5c55\u6027<\/h3>\n<p>\u96a8\u8457\u8cc7\u6599\u8868\u7684\u589e\u9577\uff0c\u4f7f\u7528<code>SELECT *<\/code>\u7684\u67e5\u8a62\u53ef\u80fd\u6703\u8b8a\u5f97\u66f4\u52a0\u7de9\u6162\uff0c\u9019\u6703\u5f71\u97ff\u61c9\u7528\u7a0b\u5f0f\u7684\u53ef\u64f4\u5c55\u6027\u3002\u660e\u78ba\u6307\u5b9a\u6b04\u4f4d\u53ef\u4ee5\u5e6b\u52a9\u4fdd\u6301\u67e5\u8a62\u7684\u9ad8\u6548\u6027\u3002<\/p>\n<h2 id=\"%e5%85%a9%e5%80%8b%e4%be%8b%e5%a4%96%e5%a0%b4%e6%99%af-ACJXtRVYFA\">\u5169\u500b\u4f8b\u5916\u5834\u666f<\/h2>\n<h3 id=\"1-%e5%bf%ab%e9%80%9f%e5%8e%9f%e5%9e%8b%e9%96%8b%e7%99%bc-ACJXtRVYFA\">1. \u5feb\u901f\u539f\u578b\u958b\u767c<\/h3>\n<p>\u5728\u5feb\u901f\u539f\u578b\u958b\u767c\u968e\u6bb5\uff0c\u958b\u767c\u8005\u53ef\u80fd\u9700\u8981\u5feb\u901f\u7372\u53d6\u8cc7\u6599\u4ee5\u9a57\u8b49\u60f3\u6cd5\u3002\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528<code>SELECT *<\/code>\u53ef\u4ee5\u7bc0\u7701\u6642\u9593\uff0c\u4f46\u61c9\u5728\u5f8c\u671f\u9032\u884c\u512a\u5316\u3002<\/p>\n<h3 id=\"2-%e8%b3%87%e6%96%99%e5%88%86%e6%9e%90-ACJXtRVYFA\">2. \u8cc7\u6599\u5206\u6790<\/h3>\n<p>\u5728\u67d0\u4e9b\u8cc7\u6599\u5206\u6790\u7684\u60c5\u5883\u4e2d\uff0c\u958b\u767c\u8005\u53ef\u80fd\u9700\u8981\u6aa2\u8996\u6574\u500b\u8cc7\u6599\u8868\u7684\u5167\u5bb9\u3002\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528<code>SELECT *<\/code>\u53ef\u4ee5\u65b9\u4fbf\u5730\u7372\u53d6\u6240\u6709\u8cc7\u6599\uff0c\u4f46\u4ecd\u9700\u6ce8\u610f\u8cc7\u6599\u7684\u5b89\u5168\u6027\u548c\u6027\u80fd\u554f\u984c\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-ACJXtRVYFA\">\u7e3d\u7d50<\/h2>\n<p>\u96d6\u7136<code>SELECT *<\/code>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u53ef\u80fd\u65b9\u4fbf\uff0c\u4f46\u5176\u6f5b\u5728\u7684\u6027\u80fd\u3001\u5b89\u5168\u6027\u548c\u7dad\u8b77\u6027\u554f\u984c\u4f7f\u5f97\u958b\u767c\u8005\u61c9\u8a72\u8b39\u614e\u4f7f\u7528\u3002\u660e\u78ba\u6307\u5b9a\u6240\u9700\u7684\u6b04\u4f4d\u4e0d\u50c5\u80fd\u63d0\u9ad8\u67e5\u8a62\u7684\u6548\u7387\uff0c\u9084\u80fd\u589e\u5f37\u4ee3\u78bc\u7684\u53ef\u8b80\u6027\u548c\u53ef\u7dad\u8b77\u6027\u3002\u5728\u9078\u64c7<code>SELECT *<\/code>\u6642\uff0c\u958b\u767c\u8005\u61c9\u8003\u616e\u5177\u9ad4\u7684\u61c9\u7528\u5834\u666f\uff0c\u4ee5\u78ba\u4fdd\u6700\u4f73\u7684\u8cc7\u6599\u5eab\u6027\u80fd\u548c\u5b89\u5168\u6027\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc<code>VPS<\/code>\u3001<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u53ca\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u907f\u514d\u4f7f\u7528SELECT*\u7684\u4e5d\u500b\u7406\u7531\u53ca\u5169\u500b\u4f8b\u5916\u5834\u666f\uff0c\u63d0\u5347SQL\u67e5\u8a62\u6548\u7387\u8207\u53ef\u8b80\u6027\uff0c\u512a\u5316\u8cc7\u6599\u5eab\u6027\u80fd\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-152095","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152095","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=152095"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152095\/revisions"}],"predecessor-version":[{"id":152096,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/152095\/revisions\/152096"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=152095"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=152095"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=152095"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}