{"id":193291,"date":"2024-11-12T20:57:23","date_gmt":"2024-11-12T12:57:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/193291\/"},"modified":"2024-11-12T20:57:24","modified_gmt":"2024-11-12T12:57:24","slug":"%e4%bf%ae%e6%94%b9%e6%95%b8%e6%93%9a%e5%ba%ab%e5%91%bd%e4%bb%a4%e6%8c%87%e5%8d%97-%e4%bf%ae%e6%94%b9%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bd%bf%e7%94%a8%e7%9a%84%e5%91%bd%e4%bb%a4","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/193291\/","title":{"rendered":"\u4fee\u6539\u6578\u64da\u5eab\u547d\u4ee4\u6307\u5357 (\u4fee\u6539\u6578\u64da\u5eab\u4f7f\u7528\u7684\u547d\u4ee4)"},"content":{"rendered":"<h1 id=\"%e4%bf%ae%e6%94%b9%e6%95%b8%e6%93%9a%e5%ba%ab%e5%91%bd%e4%bb%a4%e6%8c%87%e5%8d%97-%e4%bf%ae%e6%94%b9%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bd%bf%e7%94%a8%e7%9a%84%e5%91%bd%e4%bb%a4-OzGoLBAktT\">\u4fee\u6539\u6578\u64da\u5eab\u547d\u4ee4\u6307\u5357 (\u4fee\u6539\u6578\u64da\u5eab\u4f7f\u7528\u7684\u547d\u4ee4)<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u7ba1\u7406\u548c\u64cd\u4f5c\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u7121\u8ad6\u662f\u958b\u767c\u61c9\u7528\u7a0b\u5e8f\u9084\u662f\u7dad\u8b77\u7db2\u7ad9\uff0c\u5c0d\u6578\u64da\u5eab\u7684\u64cd\u4f5c\u90fd\u4e0d\u53ef\u6216\u7f3a\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u4e00\u4e9b\u5e38\u7528\u7684\u6578\u64da\u5eab\u4fee\u6539\u547d\u4ee4\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-OzGoLBAktT\">\u6578\u64da\u5eab\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u6578\u64da\u5eab\u662f\u4e00\u7a2e\u6709\u7d44\u7e54\u7684\u6578\u64da\u96c6\u5408\uff0c\u901a\u5e38\u7528\u65bc\u5b58\u5132\u3001\u6aa2\u7d22\u548c\u7ba1\u7406\u6578\u64da\u3002\u5e38\u898b\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff08DBMS\uff09\u5305\u62ec MySQL\u3001PostgreSQL\u3001Oracle \u548c Microsoft SQL Server \u7b49\u3002\u9019\u4e9b\u7cfb\u7d71\u63d0\u4f9b\u4e86\u591a\u7a2e\u547d\u4ee4\u4f86\u64cd\u4f5c\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"%e5%b8%b8%e7%94%a8%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e4%bf%ae%e6%94%b9%e5%91%bd%e4%bb%a4-OzGoLBAktT\">\u5e38\u7528\u7684\u6578\u64da\u5eab\u4fee\u6539\u547d\u4ee4<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u6578\u64da\u5eab\u4fee\u6539\u547d\u4ee4\uff0c\u9019\u4e9b\u547d\u4ee4\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u9032\u884c\u6578\u64da\u7684\u589e\u522a\u6539\u67e5\u64cd\u4f5c\u3002<\/p>\n<h3 id=\"1-insert-%e5%91%bd%e4%bb%a4-OzGoLBAktT\">1. INSERT \u547d\u4ee4<\/h3>\n<p>INSERT \u547d\u4ee4\u7528\u65bc\u5411\u6578\u64da\u5eab\u8868\u4e2d\u63d2\u5165\u65b0\u6578\u64da\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>INSERT INTO \u8868\u540d (\u6b04\u4f4d1, \u6b04\u4f4d2, ...) VALUES (\u503c1, \u503c2, ...);<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u82e5\u8981\u5411\u540d\u70ba &#8220;users&#8221; \u7684\u8868\u4e2d\u63d2\u5165\u4e00\u689d\u65b0\u8a18\u9304\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>INSERT INTO users (username, email) VALUES ('john_doe', 'john@example.com');<\/code><\/pre>\n<h3 id=\"2-update-%e5%91%bd%e4%bb%a4-OzGoLBAktT\">2. UPDATE \u547d\u4ee4<\/h3>\n<p>UPDATE \u547d\u4ee4\u7528\u65bc\u4fee\u6539\u6578\u64da\u5eab\u8868\u4e2d\u5df2\u5b58\u5728\u7684\u6578\u64da\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>UPDATE \u8868\u540d SET \u6b04\u4f4d1 = \u503c1, \u6b04\u4f4d2 = \u503c2 WHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u82e5\u8981\u66f4\u65b0 &#8220;users&#8221; \u8868\u4e2d\u7528\u6236 &#8220;john_doe&#8221; \u7684\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>UPDATE users SET email = 'john_doe@example.com' WHERE username = 'john_doe';<\/code><\/pre>\n<h3 id=\"3-delete-%e5%91%bd%e4%bb%a4-OzGoLBAktT\">3. DELETE \u547d\u4ee4<\/h3>\n<p>DELETE \u547d\u4ee4\u7528\u65bc\u522a\u9664\u6578\u64da\u5eab\u8868\u4e2d\u7684\u6578\u64da\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>DELETE FROM \u8868\u540d WHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u82e5\u8981\u522a\u9664 &#8220;users&#8221; \u8868\u4e2d\u7528\u6236 &#8220;john_doe&#8221; \u7684\u8a18\u9304\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>DELETE FROM users WHERE username = 'john_doe';<\/code><\/pre>\n<h3 id=\"4-select-%e5%91%bd%e4%bb%a4-OzGoLBAktT\">4. SELECT \u547d\u4ee4<\/h3>\n<p>\u96d6\u7136 SELECT \u547d\u4ee4\u4e3b\u8981\u7528\u65bc\u67e5\u8a62\u6578\u64da\uff0c\u4f46\u5b83\u4e5f\u53ef\u4ee5\u8207\u5176\u4ed6\u547d\u4ee4\u7d50\u5408\u4f7f\u7528\uff0c\u4ee5\u4fbf\u5728\u4fee\u6539\u6578\u64da\u4e4b\u524d\u6aa2\u67e5\u6578\u64da\u7684\u72c0\u614b\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>SELECT \u6b04\u4f4d1, \u6b04\u4f4d2 FROM \u8868\u540d WHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u82e5\u8981\u67e5\u8a62 &#8220;users&#8221; \u8868\u4e2d\u6240\u6709\u7528\u6236\u7684\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>SELECT email FROM users;<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-OzGoLBAktT\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u5728\u57f7\u884c UPDATE \u548c DELETE \u547d\u4ee4\u6642\uff0c\u52d9\u5fc5\u5c0f\u5fc3\uff0c\u56e0\u70ba\u9019\u4e9b\u64cd\u4f5c\u662f\u4e0d\u53ef\u9006\u7684\u3002<\/li>\n<li>\u5efa\u8b70\u5728\u9032\u884c\u5927\u898f\u6a21\u4fee\u6539\u4e4b\u524d\uff0c\u5148\u5099\u4efd\u6578\u64da\u5eab\uff0c\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li>\u4f7f\u7528 WHERE \u5b50\u53e5\u4f86\u9650\u5236\u64cd\u4f5c\u7684\u7bc4\u570d\uff0c\u907f\u514d\u610f\u5916\u4fee\u6539\u6216\u522a\u9664\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-OzGoLBAktT\">\u7e3d\u7d50<\/h2>\n<p>\u638c\u63e1\u6578\u64da\u5eab\u7684\u4fee\u6539\u547d\u4ee4\u5c0d\u65bc\u4efb\u4f55\u958b\u767c\u8005\u6216\u6578\u64da\u7ba1\u7406\u4eba\u54e1\u4f86\u8aaa\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u901a\u904e\u6b63\u78ba\u4f7f\u7528 INSERT\u3001UPDATE\u3001DELETE \u548c SELECT \u547d\u4ee4\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u3002\u82e5\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u652f\u6301\u60a8\u7684\u696d\u52d9\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1\u4fee\u6539\u6578\u64da\u5eab\u7684\u547d\u4ee4\u6307\u5357\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u5730\u66f4\u65b0\u3001\u522a\u9664\u548c\u7ba1\u7406\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u5eab\u64cd\u4f5c\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-193291","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193291","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=193291"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193291\/revisions"}],"predecessor-version":[{"id":193292,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193291\/revisions\/193292"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=193291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=193291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=193291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}