\u6700\u8fd1\u4e00\u4e2a\u9879\u76ee\u6d89\u53ca\u5230\u6539\u9020\uff0c\u5176\u4e2d\u6709\u5927\u8868\u5728\u4ee5\u524d\u6ca1\u6709\u5efa\u6210\u5206\u533a\u8868\uff0c\u73b0\u5728\u9700\u8981\u505a\u6210\u5206\u533a\u8868\u3002\u5927\u81f4\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n
\u521b\u5efa\u4e00\u4e2a\u4e0e\u539f\u59cb\u8868\u7ed3\u6784\u76f8\u540c\u7684\u65b0\u7684\u5206\u533a\u8868\uff1a
\n\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5206\u533a\u8868\uff0c\u8868\u7ed3\u6784\u4e0e\u539f\u8868\u4e00\u81f4\uff0c\u4f46\u4e0d\u5305\u62ec\u7d22\u5f15\u3001\u89e6\u53d1\u5668\u7b49\u3002<\/p>\n<\/li>\n
\u5f00\u59cb\u91cd\u5b9a\u4e49\u8fc7\u7a0b\uff1a
\n\u4f7f\u7528DBMS_REDEFINITION.START_REDEF_TABLE\u5f00\u59cb\u91cd\u5b9a\u4e49\u8fc7\u7a0b\u3002<\/p>\n<\/li>\n
\u540c\u6b65\u6570\u636e\uff1a
\n\u4f7f\u7528DBMS_REDEFINITION.SYNC_INTERIM_TABLE\u540c\u6b65\u539f\u59cb\u8868\u548c\u65b0\u5206\u533a\u8868\u4e4b\u95f4\u7684\u6570\u636e\u3002<\/p>\n<\/li>\n
\u590d\u5236\u4f9d\u8d56\u5bf9\u8c61\uff1a
\n\u5c06\u539f\u59cb\u8868\u7684\u6240\u6709\u7d22\u5f15\u3001\u89e6\u53d1\u5668\u3001\u7ea6\u675f\u548c\u5176\u4ed6\u4f9d\u8d56\u5bf9\u8c61\u590d\u5236\u5230\u65b0\u5206\u533a\u8868\u3002<\/p>\n<\/li>\n
\u5b8c\u6210\u91cd\u5b9a\u4e49\uff1a
\n\u4f7f\u7528DBMS_REDEFINITION.FINISH_REDEF_TABLE\u5b8c\u6210\u91cd\u5b9a\u4e49\u8fc7\u7a0b\u3002<\/p>\n<\/li>\n
\u5207\u6362\u8868\u540d\uff1a
\n\u5982\u679c\u65b0\u7684\u5206\u533a\u8868\u4f7f\u7528\u4e86\u4e0d\u540c\u7684\u540d\u5b57\uff0c\u5728\u91cd\u5b9a\u4e49\u5b8c\u6210\u540e\uff0c\u5c06\u539f\u59cb\u8868\u91cd\u547d\u540d\u4e3a\u5176\u4ed6\u540d\u79f0\uff0c\u7136\u540e\u5c06\u65b0\u5206\u533a\u8868\u91cd\u547d\u540d\u4e3a\u539f\u59cb\u8868\u540d\u3002<\/p>\n<\/li>\n<\/ol>\n
— \u5047\u8bbe\u539f\u8868\u540d\u4e3a big_table\uff0c\u6211\u4eec\u60f3\u8981\u5c06\u5176\u5206\u533a<\/p>\n
— Step 1: \u521b\u5efa\u65b0\u7684\u5206\u533a\u8868\u7ed3\u6784<\/p>\n
CREATE TABLE big_table_part\n ( \/* columns must match the big_table columns exactly *\/ )\n PARTITION BY RANGE (date_column) \n (\n -- \u5b9a\u4e49\u5206\u533a\u7ed3\u6784\n );\n<\/code><\/pre>\n— Step 2: \u5f00\u59cb\u91cd\u5b9a\u4e49<\/p>\n
BEGIN\n DBMS_REDEFINITION.CAN_REDEF_TABLE('your_schema', 'big_table'); \/\/\u8fd9\u4e00\u6b65\u662f\u68c0\u67e5\u8fd9\u4e2a\u8868\u662f\u5426\u53ef\u4ee5\u505a\u5728\u7ebf\u91cd\u5b9a\u4e49\n DBMS_REDEFINITION.START_REDEF_TABLE('your_schema', 'big_table', 'big_table_part');\nEND;\n\/\n<\/code><\/pre>\n— Step 3: \u6570\u636e\u540c\u6b65\uff08\u5982\u679c\u5728\u91cd\u5b9a\u4e49\u8fc7\u7a0b\u4e2d\u6570\u636e\u6709\u53d8\u52a8\uff09<\/p>\n
BEGIN\n DBMS_REDEFINITION.SYNC_INTERIM_TABLE('your_schema', 'big_table', 'big_table_part');\nEND;\n\/\n<\/code><\/pre>\n— Step 4: \u590d\u5236\u7d22\u5f15\u548c\u89e6\u53d1\u5668\u7b49\u5230\u65b0\u5206\u533a\u8868
\n— \u6b64\u6b65\u9aa4\u9700\u8981\u590d\u5236\u6240\u6709\u76f8\u5173\u7684\u6570\u636e\u5e93\u5bf9\u8c61\u3002<\/p>\n
— Step 5: \u5b8c\u6210\u91cd\u5b9a\u4e49<\/p>\n
BEGIN\n DBMS_REDEFINITION.FINISH_REDEF_TABLE('your_schema', 'big_table', 'big_table_part');\nEND;\n\/\n<\/code><\/pre>\n— Step 6: \u91cd\u547d\u540d\u8868<\/p>\n
RENAME big_table TO big_table_old;\nRENAME big_table_part TO big_table;\n<\/code><\/pre>\n— Step 7: \u6839\u636e\u9700\u8981\u5220\u9664\u6216\u5f52\u6863\u65e7\u8868<\/p>\n
DROP TABLE big_table_old;\n<\/code><\/pre>\n\n\n- \u5efa\u8bae\u5728\u4f4e\u5cf0\u65f6\u6bb5\u8fdb\u884c\u64cd\u4f5c\uff0c\u4ee5\u907f\u514d\u5bf9\u4e1a\u52a1\u9020\u6210\u5f71\u54cd\u3002<\/li>\n
- \u91cd\u5b9a\u4e49\u5b8c\u6210\u540e\uff0c\u5982\u679c\u6709\u57fa\u4e8e\u8fd9\u4e2a\u5927\u8868\u505a\u7684\u7269\u5316\u89c6\u56fe\uff0c\u90a3\u4e48\u7269\u5316\u89c6\u56fe\u65e5\u5fd7\u4f1a\u88ab\u6e05\u9664\uff01<\/li>\n<\/ol>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"
\u6700\u8fd1\u4e00\u4e2a\u9879\u76ee\u6d89\u53ca\u5230\u6539\u9020\uff0c\u5176\u4e2d\u6709\u5927\u8868\u5728\u4ee5\u524d\u6ca1\u6709\u5efa\u6210\u5206\u533a\u8868\uff0c\u73b0\u5728\u9700\u8981\u505a\u6210\u5206\u533a\u8868\u3002\u5927\u81f4\u6b65\u9aa4\u5982\u4e0b\uff1a \u6b65\u9aa4\u5982\u4e0b\uff1a \u68c0\u67e5\u8868…<\/p>\n Read More<\/span> \u4f7f\u7528\u5728\u7ebf\u91cd\u5b9a\u4e49\u5c06\u5927\u8868\u6539\u9020\u4e3a\u5206\u533a\u8868<\/span><\/a>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"Layout":"","footnotes":""},"categories":[4],"tags":[],"class_list":["entry","author-suredandan","post-631","post","type-post","status-publish","format-standard","category-oracle"],"views":1648,"_links":{"self":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts\/631","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=631"}],"version-history":[{"count":2,"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts\/631\/revisions"}],"predecessor-version":[{"id":633,"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts\/631\/revisions\/633"}],"wp:attachment":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=631"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=631"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=631"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}