{"id":5259,"date":"2024-11-14T08:11:09","date_gmt":"2024-11-14T00:11:09","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5259\/"},"modified":"2024-11-14T08:11:09","modified_gmt":"2024-11-14T00:11:09","slug":"mysql%e6%80%8e%e4%b9%88%e4%bf%ae%e6%94%b9%e5%ad%97%e6%ae%b5%e5%90%8d%e7%a7%b0","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5259\/","title":{"rendered":"mysql\u600e\u4e48\u4fee\u6539\u5b57\u6bb5\u540d\u79f0"},"content":{"rendered":"

\u5982\u4f55\u4fee\u6539 \u5b57\u6bb5\u540d\u79f0<\/strong><\/p>\n

\u4fee\u6539 MySQL \u5b57\u6bb5\u540d\u79f0\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u64cd\u4f5c\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884c\uff1a<\/p>\n

\u6b65\u9aa4 1\uff1a\u901a\u8fc7 ALTER TABLE \u8bed\u53e5\u4fee\u6539<\/strong><\/p>\n

ALTER TABLE table_name CHANGE old_column_name new_column_name data_type;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4e2d\uff1a<\/p>\n
    \n
  • table_name \u662f\u8981\u4fee\u6539\u5b57\u6bb5\u540d\u79f0\u7684\u8868\u540d\u3002<\/li>\n
  • old_column_name \u662f\u9700\u8981\u4fee\u6539\u540d\u79f0\u7684\u65e7\u5b57\u6bb5\u540d\u79f0\u3002<\/li>\n
  • new_column_name \u662f\u65b0\u7684\u5b57\u6bb5\u540d\u79f0\u3002<\/li>\n
  • data_type \u662f\u5b57\u6bb5\u7684\u65b0\u6570\u636e\u7c7b\u578b\uff08\u53ef\u9009\uff0c\u5982\u679c\u4e0d\u6307\u5b9a\u5219\u4fdd\u6301\u4e0d\u53d8\uff09\u3002<\/li>\n<\/ul>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n
    \u5c06 users \u8868\u4e2d username \u5b57\u6bb5\u540d\u79f0\u4fee\u6539\u4e3a user_name\uff1a<\/p>\n
    ALTER TABLE users CHANGE username user_name VARCHAR(255);<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u6b65\u9aa4 2\uff1a\u4f7f\u7528 RENAME COLUMN \u8bed\u53e5\uff08MySQL 8.0 \u53ca\u66f4\u9ad8\u7248\u672c\uff09<\/strong><\/p>\n
    \u4ece MySQL 8.0 \u5f00\u59cb\uff0c\u53ef\u4ee5\u4f7f\u7528\u66f4\u7b80\u6d01\u7684 RENAME COLUMN \u8bed\u53e5\u6765\u4fee\u6539\u5b57\u6bb5\u540d\u79f0\uff1a<\/p>\n
    ALTER TABLE table_name RENAME COLUMN old_column_name TO new_column_name;<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n
    \u5c06 products \u8868\u4e2d product_id \u5b57\u6bb5\u540d\u79f0\u4fee\u6539\u4e3a id\uff1a<\/p>\n
    ALTER TABLE products RENAME COLUMN product_id TO id;<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n
      \n
    • \u4fee\u6539\u5b57\u6bb5\u540d\u79f0\u540e\uff0c\u4efb\u4f55\u5f15\u7528\u65e7\u5b57\u6bb5\u540d\u79f0\u7684\u67e5\u8be2\u6216\u4ee3\u7801\u90fd\u9700\u8981\u76f8\u5e94\u66f4\u65b0\u3002<\/li>\n
    • \u5728\u4fee\u6539\u5b57\u6bb5\u540d\u79f0\u4e4b\u524d\uff0c\u8bf7\u786e\u4fdd\u6ca1\u6709\u5176\u4ed6\u8868\u6216\u89c6\u56fe\u4f9d\u8d56\u4e8e\u65e7\u5b57\u6bb5\u540d\u79f0\u3002<\/li>\n
    • \u5982\u679c\u8981\u4fee\u6539\u4e3b\u952e\u5b57\u6bb5\u7684\u540d\u79f0\uff0c\u9700\u8981\u5148\u53d6\u6d88\u4e3b\u952e\u7ea6\u675f\uff0c\u7136\u540e\u4fee\u6539\u540d\u79f0\uff0c\u6700\u540e\u91cd\u65b0\u8bbe\u7f6e\u4e3b\u952e\u7ea6\u675f\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662f\u600e\u4e48\u4fee\u6539\u5b57\u6bb5\u540d\u79f0\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u5982\u4f55\u4fee\u6539 \u5b57\u6bb5\u540d\u79f0 \u4fee\u6539 MySQL \u5b57\u6bb5\u540d\u79f0\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u64cd\u4f5c\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884c\uff1a \u6b65\u9aa4 1\uff1a\u901a\u8fc7 ALTER TABLE \u8bed\u53e5\u4fee\u6539 ALTER TABLE table_name CHANGE old_column_name new_column_name data_type; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a table_name \u662f\u8981\u4fee\u6539\u5b57\u6bb5\u540d\u79f0\u7684\u8868\u540d\u3002 old_column_name \u662f\u9700\u8981\u4fee\u6539\u540d\u79f0\u7684\u65e7\u5b57\u6bb5\u540d\u79f0\u3002 new_column_name \u662f\u65b0\u7684\u5b57\u6bb5\u540d\u79f0\u3002 data_type \u662f\u5b57\u6bb5\u7684\u65b0\u6570\u636e\u7c7b\u578b\uff08\u53ef\u9009\uff0c\u5982\u679c\u4e0d\u6307\u5b9a\u5219\u4fdd\u6301\u4e0d\u53d8\uff09\u3002 \u793a\u4f8b\uff1a \u5c06 users \u8868\u4e2d username \u5b57\u6bb5\u540d\u79f0\u4fee\u6539\u4e3a user_name\uff1a ALTER TABLE users CHANGE username user_name VARCHAR(255); \u767b\u5f55\u540e\u590d\u5236 \u6b65\u9aa4 2\uff1a\u4f7f\u7528 RENAME COLUMN \u8bed\u53e5\uff08MySQL 8.0 \u53ca\u66f4\u9ad8\u7248\u672c\uff09 \u4ece MySQL 8.0 \u5f00\u59cb\uff0c\u53ef\u4ee5\u4f7f\u7528\u66f4\u7b80\u6d01\u7684 RENAME COLUMN […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-5259","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5259","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=5259"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5259\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5259"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5259"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}