\u7576\u59b3\u77e5\u9053\u5982\u4f55\u901a\u904e\u7d66\u58f9\u6bb5DML\u8a9e\u53e5\u6dfb\u52a0\u63d0\u793a\u5c31\u53ef\u4ee5\u8b93\u5b83\u904b\u884c\u7684\u5feb\u5f88\u591a,\u4f46\u662f\u59b3\u537b\u6c92\u6709\u8a2a\u554f\u6e90\u4ee3\u78bc\u4e26\u5c07\u63d0\u793a\u653e\u5230\u9069\u7576\u4f4d\u7f6e\u7684\u9014\u5f91, \u59b3\u6703\u600e\u9ebd\u505a?<\/p>\n
\u3000\u3000\u5728\u4e0a\u58f9\u7bc7\u6587\u7ae0\u4e2d,\u6211\u5c55\u793a\u4e86\u59b3\u53ef\u4ee5\u5982\u4f55\u7528\u5b58\u5132\u6982\u8981(\u4e5f\u88ab\u7a31\u70ba\u57f7\u884c\u8a08\u5283\u7a69\u5b9a\u6027)\u4f86\u9a45\u4f7f\u6578\u64da\u5eab\u5f15\u64ce\u70ba\u59b3\u505a\u9019\u7a2e\u5de5\u4f5c.<\/p>\n
\u3000\u3000\u58f9\u500b\u5b58\u5132\u6982\u8981\u7531\u5169\u500b\u7d44\u4ef6\u7d44\u6210(\u5bec\u6cdb\u5730\u8b1b)-\u58f9\u500b\u59b3\u5e0c\u671b\u63a7\u5236\u7684SQL\u8a9e\u53e5,\u58f9\u7d44\u6bcf\u7576Oracle\u767c\u73fe\u9019\u689dSQL\u88ab\u512a\u5316\u90fd\u5c07\u5728\u5b83\u4e0a\u9762\u61c9\u7528\u7684\u63d0\u793a.\u9019\u5169\u500b\u7d44\u4ef6\u90fd\u88ab\u4fdd\u5b58\u5728\u58f9\u500b\u88ab\u7a31\u70baoutln\u7684\u6578\u64da\u5eabschema\u4e2d.<\/p>\n
\u3000\u3000\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u58f9\u7d44\u5982\u5716-1\u4e2d\u985e\u4f3c\u7684\u67e5\u8a62\u8a9e\u53e5\u4f86\u6aa2\u67e5\u4fdd\u5b58\u5728\u5176\u4e2d\u7684SQL\u8a9e\u53e5,\u4ee5\u53ca\u9644\u8457\u5728\u9019\u689dSQL\u8a9e\u53e5\u4e0a\u7684\u63d0\u793a.<\/p>\n
\u3000\u30001 select\u00a0 name, used, sql_text<\/p>\n
\u3000\u30002 from\u00a0\u00a0\u00a0 user_outlines<\/p>\n
\u3000\u30003 where\u00a0\u00a0 category = ‘DEFAULT’<\/p>\n
\u3000\u30004 ;<\/p>\n
\u3000\u30005<\/p>\n
\u3000\u30006 select\u00a0 stage, node, hint<\/p>\n
\u3000\u30007 from\u00a0\u00a0\u00a0 user_outline_hints<\/p>\n
\u3000\u30008 where\u00a0\u00a0 name = ‘{one of the names}’<\/p>\n
\u3000\u30009 ;<\/p>\n
\u3000\u3000Figure 1 Examining stored outlines.<\/p>\n
\u3000\u3000\u5728\u524d\u9762\u7684\u6587\u7ae0\u4e2d,\u6211\u4ecb\u7d39\u4e86\u9019\u6a23\u58f9\u7a2e\u60f3\u6cd5\u4f86\u6b3a\u9a19\u7cfb\u7d71, \u4f7f\u7528\u5408\u6cd5\u7684\u65b9\u6cd5\u5275\u5efa\u58f9\u500b\u5b58\u5132\u6982\u8981, \u63a5\u8457,\u4f7f\u7528\u58f9\u500b\u6587\u672c\u76f8\u4f3c\u7684\u4f46\u5df2\u7d93\u6dfb\u52a0\u904e\u63d0\u793a\u7684\u8a9e\u53e5\u4f86\u5275\u5efa\u58f9\u500b\u5b58\u5132\u6982\u8981,\u6700\u5f8c,\u4f7f\u7528\u58f9\u7d44SQL\u8a9e\u53e5\u4f86\u4ea4\u63db\u9019\u5169\u500b\u5b58\u5132\u6982\u8981\u7684\u5be6\u969b\u7d50\u679c\u4f86\u4fee\u5fa9\u5b58\u5132\u6982\u8981.<\/p>\n
\u3000\u3000\u7576\u6642,\u6211\u66fe\u63d0\u5230\u9019\u7a2e\u65b9\u6cd5\u5c0dOracle 8\u4f86\u8b1b\u6216\u8a31\u662f\u5b89\u5168\u7684,\u4f46\u662f\u7531\u65bc\u5728\u65b0\u7248\u672c\u4e2d\u5f15\u5165\u7684\u8b8a\u5316, \u5728Oracle 9\u4e2d\u53ef\u80fd\u6703\u5c0e\u81f4\u554f\u984c.<\/p>\n
\u3000\u3000\u9019\u7bc7\u6587\u7ae0\u5c07\u5c0d\u9019\u4e9b\u8b8a\u5316\u9032\u884c\u8003\u67e5, \u4ecb\u7d39\u58f9\u7a2e\u5408\u6cd5\u7684\u65b9\u6cd5\u4f86\u5f97\u5230\u59b3\u60f3\u8981\u7684\u58f9\u7d44\u5b58\u5132\u5230outln\u4e2d\u7684\u63d0\u793a,\u7528\u4f86\u89e3\u6c7a\u59b3\u7684\u90a3\u4e9b\u554f\u984c\u8a9e\u53e5.<\/p>\n
\u3000\u3000\u76f8\u95dc\u8b8a\u5316<\/p>\n
\u3000\u3000\u5982\u679c\u59b3\u767b\u9304\u5230outln schema(\u5728Oracle 9\u4e2d\u5b83\u9ed8\u8a8d\u662f\u9396\u4f4f\u7684)\u67e5\u770b\u53ef\u7528\u7684\u8868\u6e05\u55ae,\u59b3\u5c07\u767c\u73feOracle 9\u6bd4Oracle 8\u591a\u51fa\u4f86\u58f9\u5f35\u8868. \u9019\u4e9b\u8868\u70ba:<\/p>\n
\u3000\u3000ol$ SQL\u8a9e\u53e5<\/p>\n
\u3000\u3000ol$hints \u63d0\u793a\u8868<\/p>\n
\u3000\u3000ol$nodes \u67e5\u8a62\u584a<\/p>\n
\u3000\u3000\u7b2c\u4e09\u5f35\u8868\u662f\u58f9\u5f35\u65b0\u8868,\u88ab\u7528\u4f86\u5c07\u63d0\u793a\u5217\u8868\u8207\u9019\u689dSQL\u8a9e\u53e5(\u58f9\u4efd\u5167\u90e8\u91cd\u5beb\u7684\u7248\u672c)\u7684\u591a\u500b\u4e0d\u540c\u67e5\u8a62\u584a.\u59b3\u9084\u5c07\u767c\u73fe,\u63d0\u793a\u5217\u8868(ol$hints)\u4e5f\u88ab\u52a0\u5f37\u4e86,\u5176\u4e2d\u9084\u5305\u62ec\u6587\u672c\u9577\u5ea6\u8207\u504f\u79fb\u91cf\u7684\u7d30\u7bc0\u4fe1\u606f.<\/p>\n
\u3000\u3000\u57162\u70ba\u9019\u4e09\u5f35\u8868\u7684\u8a73\u7d30\u63cf\u8ff0,\u7528\u661f\u865f\u6a19\u8a3b\u4e86Oracle 9\u4e2d\u51fa\u73fe\u7684\u65b0\u5b57\u6bb5.<\/p>\n
\u3000\u300001 ol$<\/p>\n
\u3000\u300002<\/p>\n
\u3000\u300003 OL_NAME\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 VARCHAR2(30)<\/p>\n
\u3000\u300004 SQL_TEXT\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 LONG<\/p>\n
\u3000\u300005 TEXTLEN\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 NUMBER<\/p>\n
\u3000\u300006 SIGNATURE\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 RAW(16)<\/p>\n
\u3000\u300007 HASH_VALUE\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 NUMBER<\/p>\n
\u3000\u300008 HASH_VALUE2\u00a0\u00a0\u00a0\u00a0\u00a0 NUMBER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ***<\/p>\n
\u3000\u300009 CATEGORY\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 VARCHAR2(30)<\/p>\n
\u3000\u300010 VERSION\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 VARCHAR2(64)<\/p>\n
\u3000\u300011 CREATOR\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 VARCHAR2(30)<\/p>\n
\u3000\u300012 TIMESTAMP\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 DATE<\/p>\n
\u3000\u300013 FLAGS\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 NUMBER<\/p>\n
\u3000\u300014 HINTCOUNT\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 NUMBER<\/p>\n
\u3000\u300015 SPARE1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 NUMBER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ***<\/p>\n
\u3000\u300016 SPARE2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 VARCHAR2(1000)\u00a0\u00a0 ***<\/p>\n
\u3000\u300017<\/p>\n
\u3000\u300018 Ol$hints<\/p>\n
\u3000\u300019<\/p>\n
\u3000\u300020 OL_NAME\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 VARCHAR2(30)<\/p>\n
\u3000\u300021 HINT#\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 NUMBER<\/p>\n
\u3000\u300022 CATEGORY\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 VARCHAR2(30)<\/p>\n
\u3000\u300023 HINT_TYPE\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 NUMBER<\/p>\n
\u3000\u300024 HINT_TEXT\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 VARCHAR2(512)<\/p>\n
\u3000\u300025 STAGE#\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 NUMBER<\/p>\n
\u3000\u300026 NODE#\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 NUMBER<\/p>\n
\u3000\u300027 TABLE_NAME\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 VARCHAR2(30)<\/p>\n
\u3000\u300028 TABLE_TIN\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 NUMBER<\/p>\n
\u3000\u300029 TABLE_POS\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 NUMBER<\/p>\n
\u3000\u300030 REF_ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 NUMBER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ***<\/p>\n
\u3000\u300031 USER_TABLE_NAME\u00a0 VARCHAR2(64)\u00a0\u00a0\u00a0\u00a0 ***<\/p>\n
\u3000\u300032 COST\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 FLOAT(126)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ***<\/p>\n
\u3000\u300033 CARDINALITY\u00a0\u00a0\u00a0\u00a0\u00a0 FLOAT(126)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ***<\/p>\n
\u3000\u300034 BYTES\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 FLOAT(126)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ***<\/p>\n
\u3000\u300035 HINT_TEXTOFF\u00a0\u00a0\u00a0\u00a0 NUMBER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ***<\/p>\n
\u3000\u300036 HINT_TEXTLEN\u00a0\u00a0\u00a0\u00a0 NUMBER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ***<\/p>\n
\u3000\u300037 JOIN_PRED\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 VARCHAR2(2000)\u00a0\u00a0 ***<\/p>\n
\u3000\u300038 SPARE1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 NUMBER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ***<\/p>\n
\u3000\u300039 SPARE2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 NUMBER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ***<\/p>\n
\u3000\u300040<\/p>\n
\u3000\u300041 ol$nodes\u00a0 (completely new in 9)<\/p>\n
\u3000\u300042<\/p>\n
\u3000\u300043 OL_NAME\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 VARCHAR2(30)<\/p>\n
\u3000\u300044 CATEGORY\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 VARCHAR2(30)<\/p>\n
\u3000\u300045 NODE_ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 NUMBER<\/p>\n
\u3000\u300046 PARENT_ID\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 NUMBER<\/p>\n
\u3000\u300047 NODE_TYPE\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 NUMBER<\/p>\n
\u3000\u300048 NODE_TEXTLEN\u00a0\u00a0\u00a0\u00a0 NUMBER<\/p>\n
\u3000\u300049 NODE_TEXTOFF\u00a0\u00a0\u00a0\u00a0 NUMBER<\/p>\n","protected":false},"excerpt":{"rendered":"
\u7576\u59b3\u77e5\u9053\u5982\u4f55\u901a\u904e\u7d66\u58f9\u6bb5DML\u8a9e\u53e5\u6dfb\u52a0\u63d0\u793a\u5c31\u53ef\u4ee5\u8b93\u5b83\u904b\u884c\u7684\u5feb\u5f88\u591a,\u4f46\u662f\u59b3\u537b\u6c92\u6709\u8a2a\u554f\u6e90\u4ee3\u78bc\u4e26\u5c07\u63d0\u793a\u653e\u5230\u9069\u7576\u4f4d\u7f6e\u7684\u9014 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[2748,687,657],"class_list":["post-1669","post","type-post","status-publish","format-standard","hentry","category-oracle","tag-oracle","tag-687","tag-657"],"_links":{"self":[{"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/posts\/1669","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/comments?post=1669"}],"version-history":[{"count":0,"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/posts\/1669\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/media?parent=1669"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/categories?post=1669"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.killtest.hk\/index.php\/wp-json\/wp\/v2\/tags?post=1669"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}