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    Oracle中檢查外鍵是否有索引的SQL腳本分享
    來源:易賢網(wǎng) 閱讀:803 次 日期:2014-12-30 15:59:50
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    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) ||

    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。

    代碼如下:

    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,

    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)

    /

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