{"id":154551,"date":"2024-11-02T16:45:22","date_gmt":"2024-11-02T08:45:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/154551\/"},"modified":"2024-11-02T16:45:24","modified_gmt":"2024-11-02T08:45:24","slug":"%e5%b0%8d-mysql-%e8%aa%9e%e6%b3%95%e9%80%b2%e8%a1%8c%e9%ab%98%e8%b3%aa%e9%87%8f%e8%88%87%e9%ab%98%e6%80%a7%e8%83%bd%e7%b7%a8%e5%af%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/154551\/","title":{"rendered":"\u5c0d MySQL \u8a9e\u6cd5\u9032\u884c\u9ad8\u8cea\u91cf\u8207\u9ad8\u6027\u80fd\u7de8\u5beb"},"content":{"rendered":"<h1 id=\"%e5%b0%8d-mysql-%e8%aa%9e%e6%b3%95%e9%80%b2%e8%a1%8c%e9%ab%98%e8%b3%aa%e9%87%8f%e8%88%87%e9%ab%98%e6%80%a7%e8%83%bd%e7%b7%a8%e5%af%ab-sYTrzkJJZi\">\u5c0d MySQL \u8a9e\u6cd5\u9032\u884c\u9ad8\u8cea\u91cf\u8207\u9ad8\u6027\u80fd\u7de8\u5beb<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0cMySQL \u4f5c\u70ba\u4e00\u7a2e\u6d41\u884c\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u7db2\u7ad9\u9084\u662f\u5927\u578b\u4f01\u696d\u7cfb\u7d71\uff0c\u512a\u5316 MySQL \u8a9e\u6cd5\u4ee5\u63d0\u9ad8\u6027\u80fd\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u7de8\u5beb\u9ad8\u8cea\u91cf\u8207\u9ad8\u6027\u80fd\u7684 MySQL \u8a9e\u6cd5\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u6280\u5de7\u548c\u7bc4\u4f8b\u3002<\/p>\n<h2 id=\"1-%e7%90%86%e8%a7%a3%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a8%ad%e8%a8%88-sYTrzkJJZi\">1. \u7406\u89e3\u6578\u64da\u5eab\u8a2d\u8a08<\/h2>\n<p>\u5728\u7de8\u5beb MySQL \u8a9e\u6cd5\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u7406\u89e3\u6578\u64da\u5eab\u7684\u8a2d\u8a08\u3002\u826f\u597d\u7684\u6578\u64da\u5eab\u8a2d\u8a08\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u8a2d\u8a08\u539f\u5247\uff1a<\/p>\n<ul>\n<li><strong>\u6b63\u898f\u5316\uff1a<\/strong>\u901a\u904e\u6b63\u898f\u5316\u4f86\u6d88\u9664\u6578\u64da\u5197\u9918\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<li><strong>\u7d22\u5f15\uff1a<\/strong>\u70ba\u7d93\u5e38\u67e5\u8a62\u7684\u5217\u5275\u5efa\u7d22\u5f15\uff0c\u4ee5\u52a0\u5feb\u67e5\u8a62\u901f\u5ea6\u3002<\/li>\n<li><strong>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\uff1a<\/strong>\u6839\u64da\u5be6\u969b\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\uff0c\u907f\u514d\u4f7f\u7528\u904e\u5927\u7684\u6578\u64da\u985e\u578b\u3002<\/li>\n<\/ul>\n<h2 id=\"2-%e7%b7%a8%e5%af%ab%e9%ab%98%e6%95%88%e7%9a%84%e6%9f%a5%e8%a9%a2%e8%aa%9e%e6%b3%95-sYTrzkJJZi\">2. \u7de8\u5beb\u9ad8\u6548\u7684\u67e5\u8a62\u8a9e\u6cd5<\/h2>\n<p>\u7de8\u5beb\u9ad8\u6548\u7684\u67e5\u8a62\u8a9e\u6cd5\u662f\u63d0\u9ad8 MySQL \u6027\u80fd\u7684\u95dc\u9375\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<h3 id=\"2-1-%e4%bd%bf%e7%94%a8-select-%e9%99%90%e5%88%b6%e8%bf%94%e5%9b%9e%e7%9a%84%e5%88%97-sYTrzkJJZi\">2.1 \u4f7f\u7528 SELECT \u9650\u5236\u8fd4\u56de\u7684\u5217<\/h3>\n<p>\u5728\u67e5\u8a62\u6642\uff0c\u50c5\u9078\u64c7\u9700\u8981\u7684\u5217\uff0c\u800c\u4e0d\u662f\u4f7f\u7528 <code>SELECT *<\/code>\u3002\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u50b3\u8f38\u91cf\uff0c\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n<pre><code>SELECT column1, column2 FROM table_name WHERE condition;<\/code><\/pre>\n<h3 id=\"2-2-%e4%bd%bf%e7%94%a8-where-%e5%ad%90%e5%8f%a5%e9%81%8e%e6%bf%be%e6%95%b8%e6%93%9a-sYTrzkJJZi\">2.2 \u4f7f\u7528 WHERE \u5b50\u53e5\u904e\u6ffe\u6578\u64da<\/h3>\n<p>\u4f7f\u7528 <code>WHERE<\/code> \u5b50\u53e5\u4f86\u904e\u6ffe\u4e0d\u5fc5\u8981\u7684\u6578\u64da\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u67e5\u8a62\u7684\u7d50\u679c\u96c6\u5927\u5c0f\u3002<\/p>\n<pre><code>SELECT column1, column2 FROM table_name WHERE condition;<\/code><\/pre>\n<h3 id=\"2-3-%e9%81%bf%e5%85%8d%e4%bd%bf%e7%94%a8%e5%ad%90%e6%9f%a5%e8%a9%a2-sYTrzkJJZi\">2.3 \u907f\u514d\u4f7f\u7528\u5b50\u67e5\u8a62<\/h3>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528\u806f\u63a5\uff08JOIN\uff09\u4ee3\u66ff\u5b50\u67e5\u8a62\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002\u5b50\u67e5\u8a62\u53ef\u80fd\u6703\u5c0e\u81f4\u591a\u6b21\u67e5\u8a62\uff0c\u800c\u806f\u63a5\u5247\u53ef\u4ee5\u5728\u4e00\u6b21\u67e5\u8a62\u4e2d\u7372\u53d6\u6240\u9700\u7684\u6578\u64da\u3002<\/p>\n<pre><code>SELECT a.column1, b.column2 \nFROM table_a a \nJOIN table_b b ON a.id = b.a_id \nWHERE a.condition;<\/code><\/pre>\n<h2 id=\"3-%e4%bd%bf%e7%94%a8%e7%b4%a2%e5%bc%95%e4%be%86%e6%8f%90%e9%ab%98%e6%9f%a5%e8%a9%a2%e6%80%a7%e8%83%bd-sYTrzkJJZi\">3. \u4f7f\u7528\u7d22\u5f15\u4f86\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd<\/h2>\n<p>\u7d22\u5f15\u662f\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u7684\u91cd\u8981\u5de5\u5177\u3002\u901a\u904e\u70ba\u7d93\u5e38\u67e5\u8a62\u7684\u5217\u5275\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u986f\u8457\u52a0\u5feb\u67e5\u8a62\u901f\u5ea6\u3002\u7136\u800c\uff0c\u904e\u591a\u7684\u7d22\u5f15\u6703\u5f71\u97ff\u5beb\u5165\u6027\u80fd\uff0c\u56e0\u6b64\u9700\u8981\u8b39\u614e\u4f7f\u7528\u3002<\/p>\n<pre><code>CREATE INDEX index_name ON table_name (column_name);<\/code><\/pre>\n<h2 id=\"4-%e5%84%aa%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%e9%85%8d%e7%bd%ae-sYTrzkJJZi\">4. \u512a\u5316\u6578\u64da\u5eab\u914d\u7f6e<\/h2>\n<p>\u9664\u4e86\u7de8\u5beb\u9ad8\u6548\u7684 SQL \u8a9e\u6cd5\u5916\uff0c\u9084\u53ef\u4ee5\u901a\u904e\u512a\u5316 MySQL \u7684\u914d\u7f6e\u4f86\u63d0\u9ad8\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u8abf\u6574\u7de9\u885d\u5340\u5927\u5c0f\u3001\u67e5\u8a62\u7de9\u5b58\u7b49\u8a2d\u7f6e\uff0c\u53ef\u4ee5\u986f\u8457\u6539\u5584\u6578\u64da\u5eab\u7684\u97ff\u61c9\u901f\u5ea6\u3002<\/p>\n<h2 id=\"5-%e5%ae%9a%e6%9c%9f%e7%b6%ad%e8%ad%b7%e6%95%b8%e6%93%9a%e5%ba%ab-sYTrzkJJZi\">5. \u5b9a\u671f\u7dad\u8b77\u6578\u64da\u5eab<\/h2>\n<p>\u5b9a\u671f\u7dad\u8b77\u6578\u64da\u5eab\uff0c\u5982\u91cd\u5efa\u7d22\u5f15\u548c\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f\uff0c\u53ef\u4ee5\u4fdd\u6301\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u9019\u4e9b\u64cd\u4f5c\u53ef\u4ee5\u5e6b\u52a9 MySQL \u66f4\u597d\u5730\u7406\u89e3\u6578\u64da\u7684\u5206\u4f48\u60c5\u6cc1\uff0c\u5f9e\u800c\u512a\u5316\u67e5\u8a62\u8a08\u5283\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-sYTrzkJJZi\">\u7e3d\u7d50<\/h2>\n<p>\u7de8\u5beb\u9ad8\u8cea\u91cf\u8207\u9ad8\u6027\u80fd\u7684 MySQL \u8a9e\u6cd5\u9700\u8981\u5c0d\u6578\u64da\u5eab\u8a2d\u8a08\u3001\u67e5\u8a62\u512a\u5316\u3001\u7d22\u5f15\u4f7f\u7528\u53ca\u6578\u64da\u5eab\u914d\u7f6e\u6709\u6df1\u5165\u7684\u7406\u89e3\u3002\u901a\u904e\u9075\u5faa\u4e0a\u8ff0\u6700\u4f73\u5be6\u8e10\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\uff0c\u5f9e\u800c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684 MySQL \u6578\u64da\u5eab\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63d0\u5347 MySQL \u8a9e\u6cd5\u7684\u8cea\u91cf\u8207\u6027\u80fd\uff0c\u638c\u63e1\u6700\u4f73\u5be6\u8e10\uff0c\u512a\u5316\u67e5\u8a62\u6548\u7387\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u904b\u884c\u6d41\u66a2\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-154551","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/154551","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=154551"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/154551\/revisions"}],"predecessor-version":[{"id":154552,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/154551\/revisions\/154552"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=154551"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=154551"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=154551"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}