{"id":162461,"date":"2024-11-04T15:17:17","date_gmt":"2024-11-04T07:17:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/162461\/"},"modified":"2024-11-04T15:17:18","modified_gmt":"2024-11-04T07:17:18","slug":"%e7%b0%a1%e5%96%ae%e6%98%93%e5%ad%b8%ef%bc%9a%e5%a6%82%e4%bd%95%e9%96%b1%e8%ae%80-tx-%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9f-%e6%80%8e%e9%ba%bc%e7%9c%8b-tx-%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/162461\/","title":{"rendered":"\u7c21\u55ae\u6613\u5b78\uff1a\u5982\u4f55\u95b1\u8b80 TX \u6578\u64da\u5eab\uff1f (\u600e\u9ebc\u770b tx \u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e7%b0%a1%e5%96%ae%e6%98%93%e5%ad%b8%ef%bc%9a%e5%a6%82%e4%bd%95%e9%96%b1%e8%ae%80-tx-%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9f-%e6%80%8e%e9%ba%bc%e7%9c%8b-tx-%e6%95%b8%e6%93%9a%e5%ba%ab-JdqieHdwHp\">\u7c21\u55ae\u6613\u5b78\uff1a\u5982\u4f55\u95b1\u8b80 TX \u6578\u64da\u5eab\uff1f (\u600e\u9ebc\u770b tx \u6578\u64da\u5eab)<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u7ba1\u7406\u548c\u4f7f\u7528\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002TX \u6578\u64da\u5eab\u4f5c\u70ba\u4e00\u7a2e\u6d41\u884c\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u884c\u696d\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u6709\u6548\u5730\u95b1\u8b80\u548c\u7406\u89e3 TX \u6578\u64da\u5eab\uff0c\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u5229\u7528\u9019\u4e00\u5de5\u5177\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-tx-%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9f-JdqieHdwHp\">\u4ec0\u9ebc\u662f TX \u6578\u64da\u5eab\uff1f<\/h2>\n<p>TX \u6578\u64da\u5eab\u662f\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u5b58\u5132\u7cfb\u7d71\uff0c\u901a\u5e38\u7528\u65bc\u8655\u7406\u5927\u91cf\u7684\u4ea4\u6613\u6578\u64da\u3002\u5b83\u7684\u8a2d\u8a08\u65e8\u5728\u652f\u6301\u9ad8\u4e26\u767c\u7684\u8b80\u5beb\u64cd\u4f5c\uff0c\u4e26\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002TX \u6578\u64da\u5eab\u7684\u4e3b\u8981\u7279\u9ede\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u9ad8\u6027\u80fd\uff1a\u80fd\u5920\u5feb\u901f\u8655\u7406\u5927\u91cf\u7684\u6578\u64da\u8acb\u6c42\u3002<\/li>\n<li>\u53ef\u64f4\u5c55\u6027\uff1a\u652f\u6301\u96a8\u8457\u696d\u52d9\u589e\u9577\u800c\u64f4\u5c55\u7684\u80fd\u529b\u3002<\/li>\n<li>\u6578\u64da\u4e00\u81f4\u6027\uff1a\u78ba\u4fdd\u5728\u591a\u7528\u6236\u74b0\u5883\u4e0b\u6578\u64da\u7684\u6e96\u78ba\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e9%96%b1%e8%ae%80-tx-%e6%95%b8%e6%93%9a%e5%ba%ab-JdqieHdwHp\">\u5982\u4f55\u95b1\u8b80 TX \u6578\u64da\u5eab<\/h2>\n<p>\u95b1\u8b80 TX \u6578\u64da\u5eab\u7684\u904e\u7a0b\u53ef\u4ee5\u5206\u70ba\u5e7e\u500b\u6b65\u9a5f\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u7684\u6307\u5c0e\u539f\u5247\uff1a<\/p>\n<h3 id=\"1-%e7%9e%ad%e8%a7%a3%e6%95%b8%e6%93%9a%e7%b5%90%e6%a7%8b-JdqieHdwHp\">1. \u77ad\u89e3\u6578\u64da\u7d50\u69cb<\/h3>\n<p>\u5728\u958b\u59cb\u95b1\u8b80 TX \u6578\u64da\u5eab\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3\u5176\u6578\u64da\u7d50\u69cb\u3002TX \u6578\u64da\u5eab\u901a\u5e38\u7531\u591a\u500b\u8868\u7d44\u6210\uff0c\u6bcf\u500b\u8868\u5305\u542b\u4e0d\u540c\u985e\u578b\u7684\u6578\u64da\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u67e5\u770b\u6578\u64da\u5eab\u4e2d\u7684\u6240\u6709\u8868\uff1a<\/p>\n<pre><code>SHOW TABLES;<\/code><\/pre>\n<p>\u9019\u5c07\u5217\u51fa\u6578\u64da\u5eab\u4e2d\u7684\u6240\u6709\u8868\uff0c\u60a8\u53ef\u4ee5\u6839\u64da\u9700\u8981\u9078\u64c7\u7279\u5b9a\u7684\u8868\u9032\u884c\u6df1\u5165\u5206\u6790\u3002<\/p>\n<h3 id=\"2-%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a-JdqieHdwHp\">2. \u67e5\u8a62\u6578\u64da<\/h3>\n<p>\u4e00\u65e6\u60a8\u4e86\u89e3\u4e86\u6578\u64da\u7d50\u69cb\uff0c\u5c31\u53ef\u4ee5\u958b\u59cb\u67e5\u8a62\u6578\u64da\u3002\u4f7f\u7528 SQL \u8a9e\u8a00\u53ef\u4ee5\u8f15\u9b06\u5730\u5f9e\u8868\u4e2d\u6aa2\u7d22\u6240\u9700\u7684\u4fe1\u606f\u3002\u4f8b\u5982\uff0c\u82e5\u8981\u5f9e\u67d0\u500b\u8868\u4e2d\u9078\u64c7\u6240\u6709\u8a18\u9304\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT * FROM \u8868\u540d;<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u8a72\u8868\u4e2d\u7684\u6240\u6709\u6578\u64da\uff0c\u60a8\u53ef\u4ee5\u6839\u64da\u9700\u8981\u9032\u884c\u7be9\u9078\u548c\u6392\u5e8f\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e9%81%8e%e6%bf%be%e6%a2%9d%e4%bb%b6-JdqieHdwHp\">3. \u4f7f\u7528\u904e\u6ffe\u689d\u4ef6<\/h3>\n<p>\u70ba\u4e86\u66f4\u7cbe\u78ba\u5730\u67e5\u8a62\u6578\u64da\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u904e\u6ffe\u689d\u4ef6\u4f86\u9650\u5236\u8fd4\u56de\u7684\u7d50\u679c\u3002\u4f8b\u5982\uff0c\u82e5\u8981\u67e5\u8a62\u67d0\u500b\u7279\u5b9a\u689d\u4ef6\u4e0b\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528 WHERE \u5b50\u53e5\uff1a<\/p>\n<pre><code>SELECT * FROM \u8868\u540d WHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u5e6b\u52a9\u60a8\u5feb\u901f\u627e\u5230\u6240\u9700\u7684\u4fe1\u606f\u3002<\/p>\n<h3 id=\"4-%e6%95%b8%e6%93%9a%e5%88%86%e6%9e%90-JdqieHdwHp\">4. \u6578\u64da\u5206\u6790<\/h3>\n<p>\u5728\u7372\u53d6\u6578\u64da\u5f8c\uff0c\u60a8\u53ef\u4ee5\u9032\u884c\u9032\u4e00\u6b65\u7684\u5206\u6790\u3002TX \u6578\u64da\u5eab\u652f\u6301\u591a\u7a2e\u805a\u5408\u51fd\u6578\uff0c\u5982 COUNT\u3001SUM\u3001AVG \u7b49\uff0c\u9019\u4e9b\u51fd\u6578\u53ef\u4ee5\u5e6b\u52a9\u60a8\u5f9e\u6578\u64da\u4e2d\u63d0\u53d6\u6709\u50f9\u503c\u7684\u898b\u89e3\u3002\u4f8b\u5982\uff0c\u82e5\u8981\u8a08\u7b97\u67d0\u500b\u5b57\u6bb5\u7684\u7e3d\u548c\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre><code>SELECT SUM(\u5b57\u6bb5\u540d) FROM \u8868\u540d;<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-JdqieHdwHp\">\u7d50\u8ad6<\/h2>\n<p>\u95b1\u8b80 TX \u6578\u64da\u5eab\u4e26\u4e0d\u96e3\uff0c\u53ea\u8981\u638c\u63e1\u57fa\u672c\u7684 SQL \u67e5\u8a62\u8a9e\u6cd5\u548c\u6578\u64da\u7d50\u69cb\uff0c\u60a8\u5c31\u80fd\u5920\u6709\u6548\u5730\u63d0\u53d6\u548c\u5206\u6790\u6578\u64da\u3002\u96a8\u8457\u5c0d\u6578\u64da\u5eab\u7684\u6df1\u5165\u4e86\u89e3\uff0c\u60a8\u5c07\u80fd\u5920\u66f4\u597d\u5730\u5229\u7528\u9019\u4e9b\u6578\u64da\u4f86\u652f\u6301\u696d\u52d9\u6c7a\u7b56\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u4f7f\u7528 <a href=\"https:\/\/server.hk\">VPS<\/a> \u4f86\u6258\u7ba1\u60a8\u7684 TX \u6578\u64da\u5eab\u6709\u8208\u8da3\uff0c\u6216\u60f3\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u7684\u8cc7\u8a0a\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8a73\u7d30\u8cc7\u6599\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u7c21\u55ae\u6613\u5b78\u5730\u95b1\u8b80 TX \u6578\u64da\u5eab\uff0c\u638c\u63e1\u6578\u64da\u67e5\u8a62\u6280\u5de7\uff0c\u8f15\u9b06\u7406\u89e3 TX \u6578\u64da\u5eab\u7684\u7d50\u69cb\u8207\u5167\u5bb9\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-162461","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162461","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=162461"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162461\/revisions"}],"predecessor-version":[{"id":162462,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162461\/revisions\/162462"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=162461"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=162461"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=162461"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}