{"id":448,"date":"2019-08-05T17:26:02","date_gmt":"2019-08-05T09:26:02","guid":{"rendered":"http:\/\/www.821121.com\/?p=448"},"modified":"2020-12-18T14:24:17","modified_gmt":"2020-12-18T06:24:17","slug":"ogg%e5%b8%b8%e7%94%a8%e5%8f%82%e6%95%b0%ef%bc%88%e4%ba%94%ef%bc%89-compressdeletes-nocompressdeletes","status":"publish","type":"post","link":"http:\/\/www.821121.com\/?p=448","title":{"rendered":"OGG\u5e38\u7528\u53c2\u6570\uff08\u4e94\uff09-COMPRESSDELETES | NOCOMPRESSDELETES"},"content":{"rendered":"

1\u3001\u9002\u7528<\/h1>\n

Extract<\/p>\n

2\u3001\u63cf\u8ff0<\/h1>\n

\u4f7f\u7528COMPRESSDELETES\u548cNOCOMPRESSDELETES\u53c2\u6570\u63a7\u5236\u5c06\u5217\u5199\u5165DELETE\u64cd\u4f5c\u7684\u8ddf\u8e2a\u8bb0\u5f55\u7684\u65b9\u5f0f\u3002<\/p>\n

COMPRESSDELETES\u548cNOCOMPRESSDELETES \u53ef\u5168\u5c40\u7528\u4e8e\u6240\u6709TABLE\u5728\u53c2\u6570\u6587\u4ef6\u8bed\u53e5\uff0c\u6216\u8005\u5b83\u4eec\u53ef\u4ee5\u4f5c\u4e3a\u901a\u65ad\u4e2a\u522b\u5f00\u5173TABLE\u8bed\u53e5\u3002<\/p>\n

\u8fd9\u4e9b\u53c2\u6570\u652f\u6301\u4ee5\u4e0b\u6570\u636e\u5e93\uff1a<\/p>\n

DB2 LUW
\nDB2 z \/ OS
\n\u6211\u7684DB2
\n\u7684MySQL
\nSQL\u670d\u52a1\u5668
\nPostgreSQL<\/p>\n

3\u3001\u9ed8\u8ba4<\/h1>\n

COMPRESSDELETES<\/p>\n

4\u3001\u8bed\u6cd5<\/h1>\n

{COMPRESSDELETES | NOCOMPRESSDELETES [FETCHMISSINGCOLUMNS]}<\/p>\n

COMPRESSDELETES
\n\u5bfc\u81f4Extract\u4ec5\u5c06\u4e3b\u952e\u5199\u5165DELETE\u64cd\u4f5c\u7684\u7ebf\u7d22\u3002\u8fd9\u662f\u9ed8\u8ba4\u503c\u3002\u5bc6\u94a5\u63d0\u4f9b\u4e86\u8db3\u591f\u7684\u4fe1\u606f\u6765\u5220\u9664\u6b63\u786e\u7684\u76ee\u6807\u8bb0\u5f55\uff0c\u540c\u65f6\u9650\u5236\u4e86\u5fc5\u987b\u5904\u7406\u7684\u6570\u636e\u91cf\u3002<\/p>\n

NOCOMPRESSDELETES [FETCHMISSINGCOLUMNS]
\nNOCOMPRESSDELETES\u5c06\u6240\u6709\u5217\u53d1\u9001\u5230\u8def\u5f84\u3002\u5f53\u8868\u5b9a\u4e49\u4e0d\u5305\u542b\u4e3b\u952e\u6216\u552f\u4e00\u7d22\u5f15\u65f6\uff0c\u6216\u8005\u4f7f\u7528KEYCOLS\u9009\u9879\u5b9a\u4e49\u66ff\u4ee3\u952e\u65f6\uff0c\u5b83\u5c06\u6210\u4e3a\u9ed8\u8ba4\u503cTABLE\u3002KEYCOLS\u65e0\u8bba\u662f\u5426\u5b58\u5728\u5b9e\u952e\uff0c\u8be5\u9009\u9879\u90fd\u4f1a\u5c06\u6307\u5b9a\u7684\u5217\u5199\u5165\u8ddf\u8e2a\u3002<\/p>\n

NOCOMPRESSDELETES\u5728Oracle GoldenGate\u652f\u6301\u7684\u4efb\u4f55\u5e73\u53f0\u4e0a\u5c06\u51b2\u7a81\u68c0\u6d4b\u548c\u89e3\u51b3\uff08CDR\uff09\u529f\u80fd\u7528\u4e8eDB2\u6570\u636e\u5e93\u65f6\uff0c\u4e5f\u9700\u8981\u4f7f\u7528\u6b64\u529f\u80fd\u3002<\/p>\n

FETCHMISSINGCOLUMNS\u4ec5\u5bf9Oracle\u6570\u636e\u5e93\u6709\u6548\u3002\u5b83\u4f1a\u5bfc\u81f4\u5728DELETE\u64cd\u4f5c\u65f6\u4ece\u6570\u636e\u5e93\u4e2d\u83b7\u53d6\u4ec5\u7531\u83b7\u53d6\u652f\u6301\u7684\u6570\u636e\u7c7b\u578b\u7684\u503c\u3002\u8fd9\u4e9b\u6570\u636e\u7c7b\u578b\u662fLOB\uff0cUDT\uff0cLONG\u548c\u4e00\u4e9bXMLType\u5217\u3002\u6709\u5173\u5217\uff0c\u5176\u901a\u8fc7\u83b7\u53d6\uff08\u800c\u4e0d\u662f\u4ece\u91cd\u505a\u6d41\u76f4\u63a5\u62cd\u4e0b\uff09\u652f\u6301\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u914d\u7f6e\u4e0b\u6e38\u6316\u6398\u6570\u636e\u5e93\u4e2d\u4f7f\u7528\u7684Oracle GoldenGate\u7528\u4e8eOracle\u6570\u636e\u5e93\u3002\u63d0\u53d6\u7684\u5217\u5c06\u4f5c\u4e3aDELETE\u8bb0\u5f55\u7684\u4e00\u90e8\u5206\u51fa\u73b0\u5728\u8ddf\u8e2a\u6587\u4ef6\u4e2d\u3002\u5982\u679cNOCOMPRESSDELETES\u7528\u4e8e\u4e0d\u5e26\u8be5FETCHMISSINGCOLUMNS\u9009\u9879\u7684Oracle Database\u6570\u636e\uff0c\u5219\u8be5DELETE\u64cd\u4f5c\u4e2d\u5c06\u4ec5\u5305\u542b\u53ef\u4ece\u65e5\u5fd7\u4e2d\u8bfb\u53d6\uff08\u4e0d\u8bfb\u53d6\uff09\u7684LOB\u6570\u636e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

1\u3001\u9002\u7528 Extract 2\u3001\u63cf\u8ff0 \u4f7f\u7528COMPR<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-448","post","type-post","status-publish","format-standard","hentry","category-ogg"],"_links":{"self":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/448","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=448"}],"version-history":[{"count":1,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/448\/revisions"}],"predecessor-version":[{"id":449,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/448\/revisions\/449"}],"wp:attachment":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=448"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=448"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}