Question

这些语句列出了包含某些列的所有列。 Is也在搜索视图，我需要知道如何跳过视图。

DECLARE
      match_count integer;
      v_search_string varchar2(4000) := 'FE/Operational';

    BEGIN  
      FOR t IN (SELECT owner,
                       table_name, 
                       column_name 
                  FROM all_tab_columns
                 WHERE data_type in ('VARCHAR2','VARCHAR','NCHAR','NVARCHAR2') )

      LOOP   
        BEGIN
          EXECUTE IMMEDIATE    
            'SELECT COUNT(*) FROM '||t.owner || '.' || t.table_name||
            ' WHERE '||t.column_name||' = :1'   
             INTO match_count  
            USING v_search_string; 
          IF match_count > 0 THEN 
            dbms_output.put_line( t.owner || '.' || t.table_name ||'
    '||t.column_name||' '||match_count );
          END IF; 
        EXCEPTION
          WHEN others THEN
            dbms_output.put_line( 'Error encountered trying to read ' ||
                                  t.column_name || ' from ' || 
                                  t.owner || '.' || t.table_name );
            dbms_output.put_line(SQLERRM);
        END;
      END LOOP;
    END;
    /

Answer 1

您可以在all_objects上加入查询，并检查对象类型是否为表：

SELECT owner,
       table_name, 
       column_name 
FROM   all_tab_columns atc
JOIN   all_object ao ON atc.table_name = ao.object_name AND
                        atc.owner = ao.owner
WHERE  data_type IN ('VARCHAR2', 'VARCHAR', 'NCHAR', 'NVARCHAR2') AND
       object_type = 'TABLE'

Answer 2

您可以使用ALL_OBJECT视图仅包括表，如下所示：

SELECT
    ATT.OWNER,
    ATT.TABLE_NAME,
    ATT.COLUMN_NAME
FROM
    ALL_TAB_COLUMNS ATT JOIN ALL_OBJECTS AO
    ON ATT.TABLE_NAME = AO.OBJECT_NAME AND ATT.OWNER = AO.OWNER
WHERE
    DATA_TYPE IN (
        'VARCHAR2',
        'VARCHAR',
        'NCHAR',
        'NVARCHAR2'
    )
    AND AO.OBJECT_TYPE = 'TABLE'

如何更改此脚本以跳过视图？

2 个答案: