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  • oracle6

    ---4查询该用户下面所有表对应的数据字典
    
    SELECT COL.TABLE_NAME,
           --COL.COLUMN_ID AS COLORDER,
           TT.COMMENTS,
           COL.COLUMN_NAME AS COLUMNNAME,
           CASE
             WHEN PKCOL.COLUMN_POSITION > 0 THEN
              ''
             ELSE
              ''
           END AS ISPK,
           COL.DATA_TYPE AS TYPENAME,
           --DECODE(COL.DATA_TYPE, 'NUMBER', COL.DATA_PRECISION, COL.DATA_LENGTH) AS LENGTH,
           COL.DATA_LENGTH    占用字节数,
           COL.DATA_PRECISION AS PRECI,
           COL.DATA_SCALE     AS SCALE,
           
           CASE
             WHEN COL.NULLABLE = 'Y' THEN
              ''
             ELSE
              ''
           END AS CISNULL,
           
           -- '' AS ISIDENTITY,
           
           COL.DATA_DEFAULT AS DEFAULTVAL,
           CCOM.COMMENTS    AS DETEXT /*,
    COL.NUM_DISTINCT AS NUM_DISTINCT*/
      FROM USER_TAB_COLUMNS COL,
           USER_COL_COMMENTS CCOM,
           (SELECT AA.TABLE_NAME,
                   AA.INDEX_NAME,
                   AA.COLUMN_NAME,
                   AA.COLUMN_POSITION
              FROM USER_IND_COLUMNS AA, USER_CONSTRAINTS BB
             WHERE BB.CONSTRAINT_TYPE = 'P'
               AND AA.TABLE_NAME = BB.TABLE_NAME
               AND AA.INDEX_NAME = BB.CONSTRAINT_NAME
            /*AND AA.TABLE_NAME IN ('AA')*/
            ) PKCOL,
           USER_TAB_COMMENTS TT
     WHERE COL.TABLE_NAME = CCOM.TABLE_NAME
       AND COL.COLUMN_NAME = CCOM.COLUMN_NAME
       AND COL.TABLE_NAME = TT.TABLE_NAME(+)
          -- AND COL.TABLE_NAME = 'AA'
       AND COL.COLUMN_NAME = PKCOL.COLUMN_NAME(+)
       AND COL.TABLE_NAME = PKCOL.TABLE_NAME(+)
     ORDER BY COL.TABLE_NAME,col.column_id
     
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  • 原文地址:https://www.cnblogs.com/lifusen/p/9834541.html
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