{"id":153053,"date":"2024-11-02T04:14:22","date_gmt":"2024-11-01T20:14:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/153053\/"},"modified":"2024-11-02T04:14:23","modified_gmt":"2024-11-01T20:14:23","slug":"%e5%89%b5%e5%bb%ba-mysql-%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e7%a4%ba%e4%be%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/153053\/","title":{"rendered":"\u5275\u5efa MySQL \u5b58\u5132\u904e\u7a0b\u793a\u4f8b"},"content":{"rendered":"<h1 id=\"%e5%89%b5%e5%bb%ba-mysql-%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e7%a4%ba%e4%be%8b-vDxPjwqsXJ\">\u5275\u5efa MySQL \u5b58\u5132\u904e\u7a0b\u793a\u4f8b<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u5b58\u5132\u904e\u7a0b\u662f\u4e00\u7a2e\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\u3002\u5b83\u5011\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5c01\u88dd\u4e00\u7cfb\u5217 SQL \u8a9e\u53e5\uff0c\u4e26\u5c07\u5176\u4f5c\u70ba\u4e00\u500b\u55ae\u4f4d\u57f7\u884c\u3002\u9019\u4e0d\u50c5\u63d0\u9ad8\u4e86\u4ee3\u78bc\u7684\u91cd\u7528\u6027\uff0c\u9084\u80fd\u589e\u5f37\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u6027\u80fd\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728 MySQL \u4e2d\u5275\u5efa\u5b58\u5132\u904e\u7a0b\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%ef%bc%9f-vDxPjwqsXJ\">\u4ec0\u9ebc\u662f\u5b58\u5132\u904e\u7a0b\uff1f<\/h2>\n<p>\u5b58\u5132\u904e\u7a0b\u662f\u4e00\u7d44\u9810\u5148\u7de8\u5beb\u7684 SQL \u8a9e\u53e5\uff0c\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u53ef\u4ee5\u901a\u904e\u8abf\u7528\u4f86\u57f7\u884c\u3002\u5b83\u5011\u53ef\u4ee5\u63a5\u53d7\u53c3\u6578\uff0c\u4e26\u8fd4\u56de\u7d50\u679c\u3002\u5b58\u5132\u904e\u7a0b\u7684\u4e3b\u8981\u512a\u52e2\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u63d0\u9ad8\u6027\u80fd\uff1a\u5b58\u5132\u904e\u7a0b\u5728\u6578\u64da\u5eab\u4e2d\u7de8\u8b6f\u4e26\u512a\u5316\uff0c\u57f7\u884c\u901f\u5ea6\u901a\u5e38\u6bd4\u55ae\u7368\u7684 SQL \u8a9e\u53e5\u5feb\u3002<\/li>\n<li>\u589e\u5f37\u5b89\u5168\u6027\uff1a\u901a\u904e\u9650\u5236\u7528\u6236\u5c0d\u6578\u64da\u8868\u7684\u76f4\u63a5\u8a2a\u554f\uff0c\u5b58\u5132\u904e\u7a0b\u53ef\u4ee5\u4fdd\u8b77\u6578\u64da\u7684\u5b8c\u6574\u6027\u3002<\/li>\n<li>\u4ee3\u78bc\u91cd\u7528\uff1a\u958b\u767c\u8005\u53ef\u4ee5\u91cd\u8907\u4f7f\u7528\u5b58\u5132\u904e\u7a0b\uff0c\u6e1b\u5c11\u4ee3\u78bc\u5197\u9918\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%89%b5%e5%bb%ba%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-vDxPjwqsXJ\">\u5275\u5efa\u5b58\u5132\u904e\u7a0b\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<p>\u5728 MySQL \u4e2d\uff0c\u5275\u5efa\u5b58\u5132\u904e\u7a0b\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>\nCREATE PROCEDURE procedure_name (parameters)\nBEGIN\n    -- SQL statements\nEND;\n<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>procedure_name<\/code> \u662f\u5b58\u5132\u904e\u7a0b\u7684\u540d\u7a31\uff0c<code>parameters<\/code> \u662f\u53ef\u9078\u7684\u53c3\u6578\u5217\u8868\uff0c<code>SQL statements<\/code> \u662f\u8981\u57f7\u884c\u7684 SQL \u8a9e\u53e5\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e5%89%b5%e5%bb%ba%e4%b8%80%e5%80%8b%e7%b0%a1%e5%96%ae%e7%9a%84%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b-vDxPjwqsXJ\">\u793a\u4f8b\uff1a\u5275\u5efa\u4e00\u500b\u7c21\u55ae\u7684\u5b58\u5132\u904e\u7a0b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5275\u5efa\u4e00\u500b\u5b58\u5132\u904e\u7a0b\u4f86\u67e5\u8a62\u7528\u6236\u4fe1\u606f\uff1a<\/p>\n<pre><code>\nDELIMITER \/\/\n\nCREATE PROCEDURE GetUserInfo(IN userId INT)\nBEGIN\n    SELECT * FROM users WHERE id = userId;\nEND \/\/\n\nDELIMITER ;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba <code>GetUserInfo<\/code> \u7684\u5b58\u5132\u904e\u7a0b\uff0c\u5b83\u63a5\u53d7\u4e00\u500b\u6574\u6578\u985e\u578b\u7684\u53c3\u6578 <code>userId<\/code>\u3002\u7576\u8abf\u7528\u9019\u500b\u5b58\u5132\u904e\u7a0b\u6642\uff0c\u5b83\u5c07\u8fd4\u56de\u5c0d\u61c9\u7528\u6236\u7684\u6240\u6709\u4fe1\u606f\u3002<\/p>\n<h2 id=\"%e8%aa%bf%e7%94%a8%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b-vDxPjwqsXJ\">\u8abf\u7528\u5b58\u5132\u904e\u7a0b<\/h2>\n<p>\u5275\u5efa\u5b58\u5132\u904e\u7a0b\u5f8c\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u6cd5\u4f86\u8abf\u7528\u5b83\uff1a<\/p>\n<pre><code>\nCALL GetUserInfo(1);\n<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de ID \u70ba 1 \u7684\u7528\u6236\u4fe1\u606f\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e5%89%b5%e5%bb%ba%e4%b8%80%e5%80%8b%e5%b8%b6%e6%9c%89%e8%bc%b8%e5%87%ba%e5%8f%83%e6%95%b8%e7%9a%84%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b-vDxPjwqsXJ\">\u793a\u4f8b\uff1a\u5275\u5efa\u4e00\u500b\u5e36\u6709\u8f38\u51fa\u53c3\u6578\u7684\u5b58\u5132\u904e\u7a0b<\/h2>\n<p>\u9664\u4e86\u8f38\u5165\u53c3\u6578\uff0c\u5b58\u5132\u904e\u7a0b\u9084\u53ef\u4ee5\u4f7f\u7528\u8f38\u51fa\u53c3\u6578\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5275\u5efa\u4e00\u500b\u5e36\u6709\u8f38\u51fa\u53c3\u6578\u7684\u5b58\u5132\u904e\u7a0b\uff1a<\/p>\n<pre><code>\nDELIMITER \/\/\n\nCREATE PROCEDURE GetUserCount(OUT userCount INT)\nBEGIN\n    SELECT COUNT(*) INTO userCount FROM users;\nEND \/\/\n\nDELIMITER ;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba <code>GetUserCount<\/code> \u7684\u5b58\u5132\u904e\u7a0b\uff0c\u5b83\u4e0d\u63a5\u53d7\u4efb\u4f55\u8f38\u5165\u53c3\u6578\uff0c\u4f46\u6703\u8fd4\u56de\u7528\u6236\u8868\u4e2d\u7684\u7528\u6236\u6578\u91cf\u4f5c\u70ba\u8f38\u51fa\u53c3\u6578\u3002<\/p>\n<h2 id=\"%e8%aa%bf%e7%94%a8%e5%b8%b6%e6%9c%89%e8%bc%b8%e5%87%ba%e5%8f%83%e6%95%b8%e7%9a%84%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b-vDxPjwqsXJ\">\u8abf\u7528\u5e36\u6709\u8f38\u51fa\u53c3\u6578\u7684\u5b58\u5132\u904e\u7a0b<\/h2>\n<p>\u8abf\u7528\u9019\u500b\u5b58\u5132\u904e\u7a0b\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>\nCALL GetUserCount(@count);\nSELECT @count;\n<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u7528\u6236\u8868\u4e2d\u7684\u7528\u6236\u6578\u91cf\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-vDxPjwqsXJ\">\u7e3d\u7d50<\/h2>\n<p>\u5b58\u5132\u904e\u7a0b\u5728 MySQL \u4e2d\u662f\u4e00\u500b\u5f37\u5927\u7684\u529f\u80fd\uff0c\u80fd\u5920\u63d0\u9ad8\u6027\u80fd\u3001\u589e\u5f37\u5b89\u5168\u6027\u4e26\u4fc3\u9032\u4ee3\u78bc\u91cd\u7528\u3002\u901a\u904e\u672c\u6587\u7684\u793a\u4f8b\uff0c\u60a8\u61c9\u8a72\u80fd\u5920\u7406\u89e3\u5982\u4f55\u5275\u5efa\u548c\u8abf\u7528\u5b58\u5132\u904e\u7a0b\u3002\u7121\u8ad6\u60a8\u662f\u5728\u958b\u767c\u5c0f\u578b\u61c9\u7528\u9084\u662f\u5927\u578b\u7cfb\u7d71\uff0c\u638c\u63e1\u5b58\u5132\u904e\u7a0b\u7684\u4f7f\u7528\u90fd\u5c07\u5c0d\u60a8\u7684\u6578\u64da\u5eab\u7ba1\u7406\u5de5\u4f5c\u5927\u6709\u88e8\u76ca\u3002\u5982\u679c\u60a8\u9700\u8981\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u6216\u5176\u4ed6\u6578\u64da\u5eab\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5275\u5efa MySQL \u5b58\u5132\u904e\u7a0b\u7684\u793a\u4f8b\uff0c\u638c\u63e1\u57fa\u672c\u8a9e\u6cd5\u548c\u5be6\u7528\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u5eab\u7ba1\u7406\u6548\u7387\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-153053","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153053","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=153053"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153053\/revisions"}],"predecessor-version":[{"id":153054,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153053\/revisions\/153054"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=153053"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=153053"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=153053"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}