{"id":186828,"date":"2024-11-11T09:10:23","date_gmt":"2024-11-11T01:10:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/186828\/"},"modified":"2024-11-11T09:10:24","modified_gmt":"2024-11-11T01:10:24","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%b4%e5%b1%95%e5%ad%97%e6%ae%b5%e9%95%b7%e5%ba%a6%ef%bc%8c%e5%ad%98%e5%84%b2%e6%9b%b4%e5%a4%9a%e6%95%b8%e6%93%9a-%e6%95%b8%e6%93%9a%e5%ba%ab-%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/186828\/","title":{"rendered":"\u6578\u64da\u5eab\u64f4\u5c55\u5b57\u6bb5\u9577\u5ea6\uff0c\u5b58\u5132\u66f4\u591a\u6578\u64da (\u6578\u64da\u5eab \u6578\u64da\u589e\u52a0\u5b57\u6bb5\u9577\u5ea6)"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%b4%e5%b1%95%e5%ad%97%e6%ae%b5%e9%95%b7%e5%ba%a6%ef%bc%8c%e5%ad%98%e5%84%b2%e6%9b%b4%e5%a4%9a%e6%95%b8%e6%93%9a-KRqVQLaGRY\">\u6578\u64da\u5eab\u64f4\u5c55\u5b57\u6bb5\u9577\u5ea6\uff0c\u5b58\u5132\u66f4\u591a\u6578\u64da<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u8a2d\u8a08\u548c\u7ba1\u7406\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u96a8\u8457\u696d\u52d9\u9700\u6c42\u7684\u589e\u9577\uff0c\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u91cf\u4e5f\u5728\u4e0d\u65b7\u589e\u52a0\u3002\u70ba\u4e86\u80fd\u5920\u5b58\u5132\u66f4\u591a\u7684\u6578\u64da\uff0c\u64f4\u5c55\u6578\u64da\u5eab\u5b57\u6bb5\u7684\u9577\u5ea6\u662f\u4e00\u500b\u5e38\u898b\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u6709\u6548\u5730\u64f4\u5c55\u6578\u64da\u5eab\u5b57\u6bb5\u9577\u5ea6\uff0c\u4ee5\u53ca\u9019\u4e00\u904e\u7a0b\u4e2d\u9700\u8981\u8003\u616e\u7684\u56e0\u7d20\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%93%b4%e5%b1%95%e5%ad%97%e6%ae%b5%e9%95%b7%e5%ba%a6-KRqVQLaGRY\">\u70ba\u4ec0\u9ebc\u9700\u8981\u64f4\u5c55\u5b57\u6bb5\u9577\u5ea6<\/h2>\n<p>\u96a8\u8457\u696d\u52d9\u7684\u767c\u5c55\uff0c\u6578\u64da\u7684\u985e\u578b\u548c\u6578\u91cf\u4e5f\u5728\u4e0d\u65b7\u8b8a\u5316\u3002\u4f8b\u5982\uff0c\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\u53ef\u80fd\u9700\u8981\u5b58\u5132\u66f4\u9577\u7684\u7522\u54c1\u63cf\u8ff0\uff0c\u793e\u4ea4\u5a92\u9ad4\u61c9\u7528\u53ef\u80fd\u9700\u8981\u8655\u7406\u66f4\u9577\u7684\u7528\u6236\u540d\u6216\u6d88\u606f\u5167\u5bb9\u3002\u7576\u539f\u6709\u5b57\u6bb5\u7684\u9577\u5ea6\u4e0d\u8db3\u4ee5\u6eff\u8db3\u9700\u6c42\u6642\uff0c\u64f4\u5c55\u5b57\u6bb5\u9577\u5ea6\u5c31\u6210\u70ba\u4e86\u4e00\u500b\u5fc5\u8981\u7684\u9078\u64c7\u3002<\/p>\n<h2 id=\"%e6%93%b4%e5%b1%95%e5%ad%97%e6%ae%b5%e9%95%b7%e5%ba%a6%e7%9a%84%e6%ad%a5%e9%a9%9f-KRqVQLaGRY\">\u64f4\u5c55\u5b57\u6bb5\u9577\u5ea6\u7684\u6b65\u9a5f<\/h2>\n<p>\u64f4\u5c55\u6578\u64da\u5eab\u5b57\u6bb5\u9577\u5ea6\u7684\u904e\u7a0b\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li><strong>\u8a55\u4f30\u9700\u6c42\uff1a<\/strong>\u9996\u5148\uff0c\u9700\u8981\u8a55\u4f30\u7576\u524d\u5b57\u6bb5\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u78ba\u5b9a\u9700\u8981\u64f4\u5c55\u7684\u5b57\u6bb5\u53ca\u5176\u65b0\u9577\u5ea6\u3002<\/li>\n<li><strong>\u5099\u4efd\u6578\u64da\uff1a<\/strong>\u5728\u9032\u884c\u4efb\u4f55\u7d50\u69cb\u8b8a\u66f4\u4e4b\u524d\uff0c\u52d9\u5fc5\u5099\u4efd\u6578\u64da\u5eab\uff0c\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li><strong>\u4fee\u6539\u6578\u64da\u5eab\u7d50\u69cb\uff1a<\/strong>\u4f7f\u7528\u9069\u7576\u7684SQL\u8a9e\u53e5\u4f86\u4fee\u6539\u5b57\u6bb5\u9577\u5ea6\u3002\u4f8b\u5982\uff0c\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/li>\n<\/ul>\n<pre><code>ALTER TABLE \u8868\u540d MODIFY COLUMN \u5b57\u6bb5\u540d \u65b0\u6578\u64da\u985e\u578b(\u65b0\u9577\u5ea6);<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u8981\u5c07\u4e00\u500b\u540d\u70ba\u201cdescription\u201d\u7684\u5b57\u6bb5\u5f9e255\u500b\u5b57\u7b26\u64f4\u5c55\u5230500\u500b\u5b57\u7b26\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n<pre><code>ALTER TABLE products MODIFY COLUMN description VARCHAR(500);<\/code><\/pre>\n<ul>\n<li><strong>\u6e2c\u8a66\u8b8a\u66f4\uff1a<\/strong>\u5728\u4fee\u6539\u5b8c\u6210\u5f8c\uff0c\u9032\u884c\u6e2c\u8a66\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u6b63\u5e38\u904b\u884c\uff0c\u4e26\u6aa2\u67e5\u65b0\u5b57\u6bb5\u9577\u5ea6\u662f\u5426\u751f\u6548\u3002<\/li>\n<li><strong>\u66f4\u65b0\u61c9\u7528\u7a0b\u5e8f\uff1a<\/strong>\u5982\u679c\u61c9\u7528\u7a0b\u5e8f\u4e2d\u6709\u4f9d\u8cf4\u65bc\u539f\u5b57\u6bb5\u9577\u5ea6\u7684\u908f\u8f2f\uff0c\u5247\u9700\u8981\u76f8\u61c9\u5730\u66f4\u65b0\u9019\u4e9b\u908f\u8f2f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%80%83%e6%85%ae%e5%9b%a0%e7%b4%a0-KRqVQLaGRY\">\u8003\u616e\u56e0\u7d20<\/h2>\n<p>\u5728\u64f4\u5c55\u5b57\u6bb5\u9577\u5ea6\u6642\uff0c\u6709\u5e7e\u500b\u56e0\u7d20\u9700\u8981\u8003\u616e\uff1a<\/p>\n<ul>\n<li><strong>\u6027\u80fd\u5f71\u97ff\uff1a<\/strong>\u64f4\u5c55\u5b57\u6bb5\u9577\u5ea6\u53ef\u80fd\u6703\u5f71\u97ff\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u67e5\u8a62\u548c\u7d22\u5f15\u65b9\u9762\u3002\u56e0\u6b64\uff0c\u61c9\u8a72\u5728\u64f4\u5c55\u4e4b\u524d\u9032\u884c\u6027\u80fd\u8a55\u4f30\u3002<\/li>\n<li><strong>\u6578\u64da\u5b8c\u6574\u6027\uff1a<\/strong>\u78ba\u4fdd\u64f4\u5c55\u5f8c\u7684\u5b57\u6bb5\u4ecd\u7136\u7b26\u5408\u6578\u64da\u5b8c\u6574\u6027\u7d04\u675f\uff0c\u4f8b\u5982\u552f\u4e00\u6027\u548c\u975e\u7a7a\u7d04\u675f\u3002<\/li>\n<li><strong>\u61c9\u7528\u7a0b\u5e8f\u517c\u5bb9\u6027\uff1a<\/strong>\u6aa2\u67e5\u61c9\u7528\u7a0b\u5e8f\u662f\u5426\u80fd\u5920\u8655\u7406\u65b0\u7684\u5b57\u6bb5\u9577\u5ea6\uff0c\u4e26\u9032\u884c\u5fc5\u8981\u7684\u8abf\u6574\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-KRqVQLaGRY\">\u7d50\u8ad6<\/h2>\n<p>\u64f4\u5c55\u6578\u64da\u5eab\u5b57\u6bb5\u9577\u5ea6\u662f\u4e00\u500b\u91cd\u8981\u7684\u904e\u7a0b\uff0c\u53ef\u4ee5\u5e6b\u52a9\u4f01\u696d\u5b58\u5132\u66f4\u591a\u7684\u6578\u64da\uff0c\u6eff\u8db3\u4e0d\u65b7\u8b8a\u5316\u7684\u9700\u6c42\u3002\u7136\u800c\uff0c\u5728\u9032\u884c\u9019\u4e00\u904e\u7a0b\u6642\uff0c\u5fc5\u9808\u8b39\u614e\u8003\u616e\u5404\u7a2e\u56e0\u7d20\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u6578\u64da\u5b8c\u6574\u6027\u3002\u901a\u904e\u6b63\u78ba\u7684\u6b65\u9a5f\u548c\u8003\u91cf\uff0c\u4f01\u696d\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u5176\u6578\u64da\u5eab\uff0c\u652f\u6301\u696d\u52d9\u7684\u6301\u7e8c\u589e\u9577\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u9700\u6c42\uff0cServer.HK 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