Oracle中檢查外鍵是否有索引的SQL腳本分享建站知
導讀:1建站知識這篇文章主要介紹了Oracle中檢查外鍵是否有索引的SQL腳本分享,本文給出了兩個版本的腳本源碼,一個查詢所有用戶,一個查詢單用戶,需要的朋友可以參考下 復制代企業網站建設如何seo優化推廣網站。
這篇文章主要介紹了Oracle中檢查外鍵是否有索引的SQL腳本分享,本文給出了兩個版本的腳本源碼,一個查詢所有用戶,一個查詢單用戶,需要的朋友可以參考下
復制代碼代碼如下: COLUMN COLUMNS format a30 word_wrapped COLUMN tablename format a15 word_wrapped COLUMN constraint_name format a15 word_wrapped SELECT TABLE_NAME, CONSTRAINT_NAME, CNAME1 || NVL2(CNAME2, ',' || CNAME2, NULL) || NVL2(CNAME3, ',' || CNAME3, NULL) || NVL2(CNAME4, ',' || CNAME4, NULL) || NVL2(CNAME5, ',' || CNAME5, NULL) || NVL2(CNAME6, ',' || CNAME6, NULL) || NVL2(CNAME7, ',' || CNAME7, NULL) || &如何seo優化推廣網站nbsp; NVL2(CNAME8, ',' || CNAME8, NULL) COLUMNS FROM (SELECT B.TABLE_NAME, B.CONSTRAINT_NAME, MAX(DECODE(POSITION, 1, COLUMN_NAME, NULL)) CNAME1, MAX(DECODE(POSITION, 2, COLUMN_NAME, NULL)) CNAME2, MAX(DECODE(POSITION, 3, COLUMN_NAME, NULL)) CNAME3, MAX(DECODE(POSITION, 4, COLUMN_NAME, NULL)) CNAME4, MAX(DECODE(POSITION, 5, COLUMN_NAME, NULL)) CNAME5, MAX(DECODE(POSITION, 6, COLUMN_NAME, NULL)) CNAME6, MAX(DECODE(POSITION, 7, COLUMN_NAME, NULL)) CNAME7, MAX(DECODE(POSITION, 8, COLUMN_NAME, NULL)) CNAME8, COUNT(*) COL_CNT FROM (SELECT SUBSTR(TABLE_NAME, 1, 30) TABLE_NAME, SUBSTR(CONSTRAINT_NAME, 1, 30) CONSTRAINT_NAME, SUBSTR(COLUMN_NAME, 1, 30) COLUMN_NAME, POSITION FROM USER_CONS_COLUMNS) A, USER_CONSTRAINTS B WHERE A.CONSTRAINT_NAME = B.CONSTRAINT_NAME AND B.CONSTRAINT_TYPE = 'R' GROUP BY B.TABLE_NAME, B.CONSTRAINT_NAME) CONS WHERE COL_CNT > ALL (SELECT COUNT(*) FROM USER_IND_COLUMNS I WHERE I.TABLE_NAME = CONS.TABLE_NAME AND I.COLUMN_NAME IN (CNAME1, CNAME2, CNAME3, CNAME4, CNAME5, CNAME6, CNAME7, CNAME8) AND I.COLUMN_POSITION <= CONS.COL_CNT GROUP BY I.INDEX_NAME) / 在上面的基礎上修改了一下，可以檢查所有的用戶。 復制代碼代碼如下: 百度seo網站優化SET linesize 400; COLUMN OWNER format a10 word_wrapped COLUMN COLUMNS format a30 word_wrapped COLUMN TABLE_NAME format a15 word_wrapped COLUMN CONSTRAINT_NAME format a40 word_wrapped SELECT OWNER公司網站建設, TABLE_NAME, CONSTRAINT_NAME, CNAME1 || NVL2(CNAME2, ',' || CNAME2, NULL) || NVL2(CNAME3, ',' || CNAME3, NULL) || NVL2(CNAME4, ',' || CNAME4, NULL) || NVL2(CNAME5, ',' || CNAME5, NULL) || NVL2(CNAME6, ',' || CNAME6, NULL) || NVL2(CNAME7, ',' || CNAME7, NULL) || NVL2(CNAME8, ',' || CNAME8, NULL) COLUMNS FROM (SELECT B.OWNER,B.TABLE_NAME, B.CONSTRAINT_NAME, MAX(DECODE(POSITION, 1, COLUMN_NAME, NULL)) CNAME1, MAX(DECODE(POSITION, 2, COLUMN_NAME, NULL)) CNAME2, MAX(DECODE(POSITION, 3, COLUMN_NAME, NULL)) CNAME3, MAX(DECODE(POSITION, 4, COLUMN_NAME, NULL)) CNAME4, MAX(DECODE(POSITION, 5, COLUMN_NAME, NULL)) CNAME5, MAX(DECODE(POSITION, 6, COLUMN_NAME, NULL)) CNAME6, MAX(DECODE(POSITION, 7, COLUMN_NAME, NULL)) CNAME7, MAX(DECODE(POSITION, 8, COLUMN_NAME, NULL)) CNAME8, COUNT(*) COL_CNT FROM (SELECT SUBSTR(TABLE_NAME, 1, 30) TABLE_NAME, SUBSTR(CONSTRAINT_NAME, 1, 30) CONSTRAINT_NAME, SUBSTR(COLUMN_NAME, 1, 30) COLUMN_NAME, POSITION FROM DBA_CONS_COLUMNS WHERE OWNER NOT IN ('SYS','SYSTEM','SYSMAN','HR','OE','EXFSYS','DBSNMP','MDSYS','OLAPSYS','SCOTT','EXFSYS','SH','PM','CTXSYS')) A, DBA_CONSTRAINTS B WHERE A.CONSTRAINT_NAME = B.CONSTRAINT_NAME AND B.CONSTRAINT_TYPE = 'R' GROUP BY B.OWNER,B.TABLE_NAME, B.CONSTRAINT_NAME) CONS WHERE COL_CNT > ALL (SELECT COUNT(*) FROM DBA_IND_COLUMNS I WHERE I.TABLE_NAME = CONS.TABLE_NAME AND I.TABLE_OWNER=CONS.OWNER AND I.COLUMN_NAME IN (CNAME1, CNAME2, CNAME3, CNAME4, CNAME5, CNAME6, CNAME7, CNAME8) AND I.COLUMN_POSITION <= CONS.COL_CNT GROUP BY I.INDEX_NAME) / 相關企業網站建設如何seo優化推廣網站。
聲明: 本文由我的SEOUC技術文章主頁發布于:2023-05-22 ，文章Oracle中檢查外鍵是否有索引的SQL腳本分享建站知主要講述腳本,索引,SQL網站建設源碼以及服務器配置搭建相關技術文章。轉載請保留鏈接: http://www.bifwcx.com/article/web_4103.html
