{"id":178572,"date":"2024-11-08T19:05:21","date_gmt":"2024-11-08T11:05:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178572\/"},"modified":"2024-11-08T19:05:22","modified_gmt":"2024-11-08T11:05:22","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a42032-cr_data_truncated-%e6%95%b0%e6%8d%ae%e8%a2%ab%e6%88%aa%e6%96%ad","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178572\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa42032 &#8211; (CR_DATA_TRUNCATED) \u6570\u636e\u88ab\u622a\u65ad"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a42032-cr_data_truncated-%e6%95%b8%e6%93%9a%e8%a2%ab%e6%88%aa%e6%96%b7-uJVorAhlnG\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa42032 &#8211; (CR_DATA_TRUNCATED) \u6578\u64da\u88ab\u622a\u65b7<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa4\u4ee3\u78bc2032\uff0c\u901a\u5e38\u986f\u793a\u70ba\u201c(CR_DATA_TRUNCATED) \u6578\u64da\u88ab\u622a\u65b7\u201d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u6578\u64da\u63d2\u5165\u6216\u66f4\u65b0\u64cd\u4f5c\u6642\uff0c\u7576\u6578\u64da\u7684\u9577\u5ea6\u8d85\u904e\u4e86\u5b57\u6bb5\u7684\u5b9a\u7fa9\u9577\u5ea6\u6642\uff0cMySQL\u6703\u81ea\u52d5\u622a\u65b7\u6578\u64da\uff0c\u4e26\u8fd4\u56de\u6b64\u932f\u8aa4\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0-uJVorAhlnG\">\u932f\u8aa4\u539f\u56e0<\/h2>\n<p>MySQL\u932f\u8aa42032\u7684\u4e3b\u8981\u539f\u56e0\u662f\u6578\u64da\u88ab\u622a\u65b7\uff0c\u9019\u901a\u5e38\u8207\u4ee5\u4e0b\u5e7e\u500b\u56e0\u7d20\u6709\u95dc\uff1a<\/p>\n<ul>\n<li><strong>\u5b57\u6bb5\u9577\u5ea6\u9650\u5236\uff1a<\/strong>\u6bcf\u500b\u6578\u64da\u5eab\u5b57\u6bb5\u90fd\u6709\u5176\u5b9a\u7fa9\u7684\u6700\u5927\u9577\u5ea6\uff0c\u4f8b\u5982VARCHAR(50)\u8868\u793a\u8a72\u5b57\u6bb5\u6700\u591a\u53ef\u4ee5\u5b58\u513250\u500b\u5b57\u7b26\u3002\u5982\u679c\u63d2\u5165\u7684\u6578\u64da\u8d85\u904e\u9019\u500b\u9577\u5ea6\uff0cMySQL\u5c07\u6703\u622a\u65b7\u591a\u9918\u7684\u90e8\u5206\u3002<\/li>\n<li><strong>\u5b57\u7b26\u96c6\u4e0d\u5339\u914d\uff1a<\/strong>\u5982\u679c\u6578\u64da\u7684\u5b57\u7b26\u96c6\u8207\u6578\u64da\u5eab\u5b57\u6bb5\u7684\u5b57\u7b26\u96c6\u4e0d\u5339\u914d\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u88ab\u622a\u65b7\u3002\u4f8b\u5982\uff0c\u5c07UTF-8\u5b57\u7b26\u63d2\u5165\u5230\u5b9a\u7fa9\u70balatin1\u7684\u5b57\u6bb5\u4e2d\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li><strong>NULL\u503c\u8655\u7406\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u63d2\u5165NULL\u503c\u5230\u4e0d\u5141\u8a31NULL\u7684\u5b57\u6bb5\u4e2d\u4e5f\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u88ab\u622a\u65b7\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a42032-uJVorAhlnG\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa42032<\/h2>\n<p>\u4fee\u5fa9MySQL\u932f\u8aa42032\u7684\u65b9\u6cd5\u4e3b\u8981\u6709\u4ee5\u4e0b\u5e7e\u7a2e\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e5%ad%97%e6%ae%b5%e5%ae%9a%e7%be%a9-uJVorAhlnG\">1. \u6aa2\u67e5\u5b57\u6bb5\u5b9a\u7fa9<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u6578\u64da\u5eab\u4e2d\u76f8\u95dc\u5b57\u6bb5\u7684\u5b9a\u7fa9\uff0c\u78ba\u4fdd\u5b83\u5011\u7684\u9577\u5ea6\u8db3\u5920\u5b58\u5132\u5373\u5c07\u63d2\u5165\u7684\u6578\u64da\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u67e5\u770b\u8868\u7d50\u69cb\uff1a<\/p>\n<pre><code>SHOW CREATE TABLE your_table_name;<\/code><\/pre>\n<p>\u5982\u679c\u767c\u73fe\u5b57\u6bb5\u9577\u5ea6\u4e0d\u8db3\uff0c\u53ef\u4ee5\u4f7f\u7528ALTER TABLE\u8a9e\u53e5\u4f86\u4fee\u6539\u5b57\u6bb5\u9577\u5ea6\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code>ALTER TABLE your_table_name MODIFY your_column_name VARCHAR(100);<\/code><\/pre>\n<h3 id=\"2-%e7%a2%ba%e8%aa%8d%e5%ad%97%e7%ac%a6%e9%9b%86-uJVorAhlnG\">2. \u78ba\u8a8d\u5b57\u7b26\u96c6<\/h3>\n<p>\u78ba\u4fdd\u63d2\u5165\u7684\u6578\u64da\u5b57\u7b26\u96c6\u8207\u6578\u64da\u5eab\u5b57\u6bb5\u7684\u5b57\u7b26\u96c6\u4e00\u81f4\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u6aa2\u67e5\u5b57\u7b26\u96c6\uff1a<\/p>\n<pre><code>SHOW VARIABLES LIKE 'character_set%';<\/code><\/pre>\n<p>\u5982\u679c\u9700\u8981\u66f4\u6539\u5b57\u7b26\u96c6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n<pre><code>ALTER TABLE your_table_name CONVERT TO CHARACTER SET utf8mb4;<\/code><\/pre>\n<h3 id=\"3-%e8%99%95%e7%90%86null%e5%80%bc-uJVorAhlnG\">3. \u8655\u7406NULL\u503c<\/h3>\n<p>\u6aa2\u67e5\u63d2\u5165\u7684\u6578\u64da\u4e2d\u662f\u5426\u6709NULL\u503c\uff0c\u4e26\u78ba\u4fdd\u9019\u4e9b\u503c\u4e0d\u6703\u63d2\u5165\u5230\u4e0d\u5141\u8a31NULL\u7684\u5b57\u6bb5\u4e2d\u3002\u5982\u679c\u9700\u8981\uff0c\u53ef\u4ee5\u5728\u63d2\u5165\u6578\u64da\u4e4b\u524d\u9032\u884c\u6aa2\u67e5\u6216\u4f7f\u7528DEFAULT\u503c\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b-uJVorAhlnG\">\u793a\u4f8b<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba\u201cusers\u201d\u7684\u8868\uff0c\u5305\u542b\u4e00\u500b\u540d\u70ba\u201cusername\u201d\u7684VARCHAR(50)\u5b57\u6bb5\u3002\u5982\u679c\u6211\u5011\u5617\u8a66\u63d2\u5165\u4e00\u500b\u8d85\u904e50\u500b\u5b57\u7b26\u7684\u7528\u6236\u540d\uff0c\u5c07\u6703\u9047\u5230\u932f\u8aa42032\uff1a<\/p>\n<pre><code>INSERT INTO users (username) VALUES ('\u9019\u662f\u4e00\u500b\u975e\u5e38\u9577\u7684\u7528\u6236\u540d\uff0c\u8d85\u904e\u4e86\u5b9a\u7fa9\u7684\u9577\u5ea6\u9650\u5236\uff0c\u5c07\u6703\u5c0e\u81f4\u6578\u64da\u88ab\u622a\u65b7');<\/code><\/pre>\n<p>\u70ba\u4e86\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff0c\u6211\u5011\u53ef\u4ee5\u4fee\u6539\u201cusername\u201d\u5b57\u6bb5\u7684\u9577\u5ea6\uff1a<\/p>\n<pre><code>ALTER TABLE users MODIFY username VARCHAR(100);<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-uJVorAhlnG\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa42032 &#8211; (CR_DATA_TRUNCATED) \u6578\u64da\u88ab\u622a\u65b7\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u901a\u5e38\u7531\u65bc\u5b57\u6bb5\u9577\u5ea6\u4e0d\u8db3\u3001\u5b57\u7b26\u96c6\u4e0d\u5339\u914d\u6216NULL\u503c\u8655\u7406\u4e0d\u7576\u5f15\u8d77\u3002\u901a\u904e\u6aa2\u67e5\u5b57\u6bb5\u5b9a\u7fa9\u3001\u78ba\u8a8d\u5b57\u7b26\u96c6\u4ee5\u53ca\u59a5\u5584\u8655\u7406NULL\u503c\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u6578\u64da\u5eab\u7ba1\u7406\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u65b9\u6848\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9MySQL\u932f\u8aa42032 (CR_DATA_TRUNCATED) \u7684\u65b9\u6cd5\uff0c\u5e6b\u52a9\u60a8\u89e3\u6c7a\u6578\u64da\u622a\u65b7\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\u548c\u6b63\u78ba\u6027\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-178572","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178572","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=178572"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178572\/revisions"}],"predecessor-version":[{"id":178573,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178572\/revisions\/178573"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178572"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178572"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178572"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}