{"id":4989,"date":"2024-11-14T12:59:03","date_gmt":"2024-11-14T04:59:03","guid":{"rendered":"https:\/\/fwq.ai\/blog\/4989\/"},"modified":"2024-11-14T12:59:03","modified_gmt":"2024-11-14T04:59:03","slug":"oracle%e6%80%8e%e4%b9%88%e6%94%b9%e5%ad%97%e6%ae%b5%e5%90%8d%e7%a7%b0","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/4989\/","title":{"rendered":"oracle\u600e\u4e48\u6539\u5b57\u6bb5\u540d\u79f0"},"content":{"rendered":"

\n \u5728 oracle \u6570\u636e\u5e93\u4e2d\u66f4\u6539\u5b57\u6bb5\u540d\u79f0\u6709\u4e09\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 alter table \u547d\u4ee4\uff1b\u4f7f\u7528 rename \u547d\u4ee4\uff1b\u4f7f\u7528 ddl \u8bed\u53e5\u3002\n<\/p><\/blockquote>\n

\"oracle\u600e\u4e48\u6539\u5b57\u6bb5\u540d\u79f0\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u4f7f\u7528 Oracle \u66f4\u6539\u5b57\u6bb5\u540d\u79f0<\/strong><\/p>\n

\u524d\u8a00<\/strong>
\u5728 Oracle \u6570\u636e\u5e93\u4e2d\uff0c\u5bf9\u5b57\u6bb5\u8fdb\u884c\u91cd\u547d\u540d\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u64cd\u4f5c\u3002\u4e3a\u4e86\u6ee1\u8db3\u4e0d\u540c\u7684\u9700\u6c42\uff0cOracle \u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u6267\u884c\u6b64\u64cd\u4f5c\u3002<\/p>\n

\u65b9\u6cd5<\/strong><\/p>\n

1. \u4f7f\u7528 ALTER TABLE \u547d\u4ee4<\/strong>
\u8fd9\u662f\u6700\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u8bed\u6cd5\u5982\u4e0b\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
\u4f8b\u5982\uff1a<\/p>\n
ALTER TABLE employees RENAME COLUMN employee_id TO id;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2. \u4f7f\u7528 RENAME \u547d\u4ee4<\/strong>
\u6b64\u547d\u4ee4\u53ef\u7528\u4e8e\u540c\u65f6\u91cd\u547d\u540d\u8868\u548c\u5b57\u6bb5\uff0c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
RENAME TABLE old_table_name TO new_table_name RENAME COLUMN old_column_name TO new_column_name;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f8b\u5982\uff1a<\/p>\n
RENAME TABLE old_employees TO new_employees RENAME COLUMN employee_id TO id;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
3. \u4f7f\u7528 DDL \u8bed\u53e5<\/strong>
DDL \u8bed\u53e5\u53ef\u4ee5\u7528\u4e8e\u521b\u5efa\u6216\u4fee\u6539\u8868\u7ed3\u6784\uff0c\u4e5f\u53ef\u4ee5\u91cd\u547d\u540d\u5b57\u6bb5\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
CREATE TABLE table_name (\n    new_column_name data_type,\n    ...\n)\nSELECT * FROM old_table_name;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f8b\u5982\uff1a<\/p>\n
CREATE TABLE new_employees (\n    id NUMBER,\n    ...\n)\nSELECT * FROM old_employees;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n
    \n
  • \u5728\u4f7f\u7528 ALTER TABLE \u547d\u4ee4\u65f6\uff0c\u6e90\u5b57\u6bb5\u548c\u76ee\u6807\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b\u5fc5\u987b\u76f8\u540c\u3002<\/li>\n
  • \u5982\u679c\u91cd\u547d\u540d\u5b57\u6bb5\u662f\u5916\u952e\u6216\u7d22\u5f15\u7684\u4e00\u90e8\u5206\uff0c\u5219\u4e5f\u9700\u8981\u66f4\u65b0\u76f8\u5173\u7ea6\u675f\u548c\u7d22\u5f15\u3002<\/li>\n
  • \u91cd\u547d\u540d\u5b57\u6bb5\u4f1a\u5f71\u54cd\u6240\u6709\u5f15\u7528\u8be5\u5b57\u6bb5\u7684\u89c6\u56fe\u3001\u5b58\u50a8\u8fc7\u7a0b\u548c\u51fd\u6570\u3002<\/li>\n<\/ul>\n
    \u4ee5\u4e0a\u5c31\u662f\u600e\u4e48\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":"
    \u5728 oracle \u6570\u636e\u5e93\u4e2d\u66f4\u6539\u5b57\u6bb5\u540d\u79f0\u6709\u4e09\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 alter table \u547d\u4ee4\uff1b\u4f7f\u7528 rename \u547d\u4ee4\uff1b\u4f7f\u7528 ddl \u8bed\u53e5\u3002 \u5982\u4f55\u4f7f\u7528 Oracle \u66f4\u6539\u5b57\u6bb5\u540d\u79f0 \u524d\u8a00\u5728 Oracle \u6570\u636e\u5e93\u4e2d\uff0c\u5bf9\u5b57\u6bb5\u8fdb\u884c\u91cd\u547d\u540d\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u64cd\u4f5c\u3002\u4e3a\u4e86\u6ee1\u8db3\u4e0d\u540c\u7684\u9700\u6c42\uff0cOracle \u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u6267\u884c\u6b64\u64cd\u4f5c\u3002 \u65b9\u6cd5 1. \u4f7f\u7528 ALTER TABLE \u547d\u4ee4\u8fd9\u662f\u6700\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u8bed\u6cd5\u5982\u4e0b\uff1a ALTER TABLE table_name RENAME COLUMN old_column_name TO new_column_name; \u767b\u5f55\u540e\u590d\u5236 \u4f8b\u5982\uff1a ALTER TABLE employees RENAME COLUMN employee_id TO id; \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 RENAME \u547d\u4ee4\u6b64\u547d\u4ee4\u53ef\u7528\u4e8e\u540c\u65f6\u91cd\u547d\u540d\u8868\u548c\u5b57\u6bb5\uff0c\u8bed\u6cd5\u5982\u4e0b\uff1a RENAME TABLE old_table_name TO new_table_name RENAME COLUMN old_column_name TO […]<\/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-4989","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/4989","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=4989"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/4989\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=4989"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=4989"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=4989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}