{"id":162025,"date":"2024-11-04T11:19:20","date_gmt":"2024-11-04T03:19:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/162025\/"},"modified":"2024-11-04T11:19:21","modified_gmt":"2024-11-04T03:19:21","slug":"%e5%8a%a0%e9%80%9f-oracle-%e5%a4%a7%e6%89%b9%e9%87%8f%e6%95%b8%e6%93%9a%e8%99%95%e7%90%86%e7%9a%84-2-%e5%80%8b%e5%a5%bd%e7%94%a8%e6%96%b9%e6%a1%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/162025\/","title":{"rendered":"\u52a0\u901f Oracle \u5927\u6279\u91cf\u6578\u64da\u8655\u7406\u7684 2 \u500b\u597d\u7528\u65b9\u6848"},"content":{"rendered":"

\u52a0\u901f Oracle \u5927\u6279\u91cf\u6578\u64da\u8655\u7406\u7684 2 \u500b\u597d\u7528\u65b9\u6848<\/h1>\n

\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u4f01\u696d\u9762\u81e8\u8457\u8655\u7406\u5927\u91cf\u6578\u64da\u7684\u6311\u6230\u3002Oracle \u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u5de5\u5177\u548c\u529f\u80fd\u4f86\u652f\u6301\u5927\u6279\u91cf\u6578\u64da\u8655\u7406\u3002\u7136\u800c\uff0c\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u52a0\uff0c\u5982\u4f55\u6709\u6548\u5730\u52a0\u901f\u9019\u4e00\u904e\u7a0b\u6210\u70ba\u4e86\u8a31\u591a\u4f01\u696d\u7684\u95dc\u6ce8\u7126\u9ede\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5169\u500b\u6709\u6548\u7684\u65b9\u6848\uff0c\u4ee5\u63d0\u5347 Oracle \u5927\u6279\u91cf\u6578\u64da\u8655\u7406\u7684\u6548\u7387\u3002<\/p>\n

\u65b9\u6848\u4e00\uff1a\u4f7f\u7528 Oracle Direct Path Load<\/h2>\n

Oracle Direct Path Load \u662f\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u52a0\u8f09\u65b9\u6cd5\uff0c\u7279\u5225\u9069\u5408\u65bc\u5927\u6279\u91cf\u6578\u64da\u7684\u5c0e\u5165\u3002\u8207\u50b3\u7d71\u7684\u6578\u64da\u52a0\u8f09\u65b9\u6cd5\u76f8\u6bd4\uff0cDirect Path Load \u53ef\u4ee5\u7e5e\u904e\u6578\u64da\u5eab\u7684\u7de9\u5b58\u548c\u65e5\u8a8c\u8a18\u9304\uff0c\u76f4\u63a5\u5c07\u6578\u64da\u5beb\u5165\u6578\u64da\u6587\u4ef6\u4e2d\uff0c\u5f9e\u800c\u986f\u8457\u63d0\u9ad8\u52a0\u8f09\u901f\u5ea6\u3002<\/p>\n

\u5982\u4f55\u4f7f\u7528 Direct Path Load<\/h3>\n

\u8981\u4f7f\u7528 Direct Path Load\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 SQL*Loader \u5de5\u5177\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 SQL*Loader \u9032\u884c Direct Path Load\uff1a<\/p>\n

LOAD DATA\nINFILE 'data.csv'\nINTO TABLE your_table\nFIELDS TERMINATED BY ','\nOPTIONALLY ENCLOSED BY '\"'\n(\n    column1,\n    column2,\n    column3\n)\n<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u60a8\u9700\u8981\u5c07 ‘data.csv’ \u66ff\u63db\u70ba\u60a8\u7684\u6578\u64da\u6587\u4ef6\u540d\uff0c\u4e26\u6839\u64da\u60a8\u7684\u8868\u7d50\u69cb\u8abf\u6574\u5217\u540d\u3002\u4f7f\u7528 Direct Path Load \u6642\uff0c\u60a8\u53ef\u4ee5\u901a\u904e\u5728\u63a7\u5236\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u9078\u9805\u4f86\u555f\u7528\u76f4\u63a5\u8def\u5f91\uff1a<\/p>\n
DIRECT=true\n<\/code><\/pre>\n
\u9019\u6a23\uff0cSQL*Loader \u5c07\u4f7f\u7528 Direct Path \u52a0\u8f09\u6578\u64da\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n
\u65b9\u6848\u4e8c\uff1a\u5229\u7528 Oracle Parallel Processing<\/h2>\n
\u53e6\u4e00\u7a2e\u52a0\u901f Oracle \u5927\u6279\u91cf\u6578\u64da\u8655\u7406\u7684\u6709\u6548\u65b9\u6cd5\u662f\u5229\u7528 Oracle \u7684\u4e26\u884c\u8655\u7406\u529f\u80fd\u3002\u901a\u904e\u4e26\u884c\u8655\u7406\uff0c\u60a8\u53ef\u4ee5\u540c\u6642\u57f7\u884c\u591a\u500b\u6578\u64da\u8655\u7406\u4efb\u52d9\uff0c\u5f9e\u800c\u986f\u8457\u7e2e\u77ed\u8655\u7406\u6642\u9593\u3002<\/p>\n
\u5982\u4f55\u5be6\u73fe\u4e26\u884c\u8655\u7406<\/h3>\n
\u8981\u555f\u7528\u4e26\u884c\u8655\u7406\uff0c\u60a8\u53ef\u4ee5\u5728 SQL \u67e5\u8a62\u4e2d\u4f7f\u7528 PARALLEL \u63d0\u793a\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n
SELECT \/*+ PARALLEL(your_table, 4) *\/ *\nFROM your_table;\n<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c`PARALLEL(your_table, 4)` \u8868\u793a\u5c07\u5c0d `your_table` \u8868\u9032\u884c\u56db\u500b\u4e26\u884c\u8655\u7406\u3002\u60a8\u53ef\u4ee5\u6839\u64da\u7cfb\u7d71\u7684\u8cc7\u6e90\u548c\u9700\u6c42\u8abf\u6574\u4e26\u884c\u5ea6\u3002<\/p>\n
\u6b64\u5916\uff0c\u60a8\u9084\u53ef\u4ee5\u5728\u6578\u64da\u52a0\u8f09\u904e\u7a0b\u4e2d\u4f7f\u7528\u4e26\u884c\u8655\u7406\u3002\u4f8b\u5982\uff0c\u5728\u4f7f\u7528 SQL*Loader \u6642\uff0c\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u65b9\u5f0f\u555f\u7528\u4e26\u884c\u52a0\u8f09\uff1a<\/p>\n
LOAD DATA\nINFILE 'data.csv'\nINTO TABLE your_table\nPARALLEL\n<\/code><\/pre>\n
\u9019\u6a23\uff0cSQL*Loader \u5c07\u5728\u52a0\u8f09\u6578\u64da\u6642\u4f7f\u7528\u4e26\u884c\u8655\u7406\uff0c\u9032\u4e00\u6b65\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728\u8655\u7406\u5927\u6279\u91cf\u6578\u64da\u6642\uff0c\u9078\u64c7\u5408\u9069\u7684\u52a0\u901f\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u4f7f\u7528 Oracle Direct Path Load \u548c Oracle Parallel Processing \u662f\u5169\u7a2e\u6709\u6548\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\u3002\u9019\u4e9b\u6280\u8853\u4e0d\u50c5\u80fd\u5920\u5e6b\u52a9\u4f01\u696d\u7bc0\u7701\u6642\u9593\uff0c\u9084\u80fd\u63d0\u9ad8\u6574\u9ad4\u7684\u6578\u64da\u8655\u7406\u80fd\u529b\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684 Oracle \u6578\u64da\u8655\u7406\u9700\u6c42\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u61c9\u5c0d\u5927\u6578\u64da\u6311\u6230\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u52a0\u901f Oracle \u5927\u6279\u91cf\u6578\u64da\u8655\u7406\u7684\u5169\u500b\u6709\u6548\u65b9\u6848\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u512a\u5316\u696d\u52d9\u904b\u71df\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-162025","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162025","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=162025"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162025\/revisions"}],"predecessor-version":[{"id":162026,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162025\/revisions\/162026"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=162025"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=162025"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=162025"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}