查詢從oracle的dba_tables中獲取表名

Question

我想使用dba_tab_statistics連接從dba_tables中獲取表名。

select table_name 
from dba_tables a, 
    dba_tab_statistics b 
where a.owner like 'Owner' and a.table_name not like '%TMP' 
    and a.LAST_ANALYZED IS NOT NULL and a.table_name = b.table_name 
    and b.stattype_locked IS NULL; 

此查詢不提供不同的表名稱。需要進行哪些更改？

Answer 1

使用其中任何一個：

SELECT a.table_name 
    FROM dba_tables a, 
     dba_tab_statistics b 
WHERE  a.owner LIKE 'Owner' 
     AND a.table_name NOT LIKE '%TMP' 
     AND a.LAST_ANALYZED IS NOT NULL 
     AND a.table_name = b.table_name 
     AND b.stattype_locked IS NULL 
group by a.table_name ; 

或

SELECT DISTINCT a.table_name 
    FROM dba_tables a, 
     dba_tab_statistics b 
WHERE  a.owner LIKE 'Owner' 
     AND a.table_name NOT LIKE '%TMP' 
     AND a.LAST_ANALYZED IS NOT NULL 
     AND a.table_name = b.table_name 
     AND b.stattype_locked IS NULL ; 

Answer 2

另一種解決方案：

SELECT table_name 
    FROM dba_tables a 
WHERE owner LIKE 'Owner' 
    AND table_name NOT LIKE '%TMP' 
    AND LAST_ANALYZED IS NOT NULL 
    AND exists (SELECT 0 
       FROM dba_tab_statistics b 
       WHERE a.table_name = b.table_name 
       AND b.stattype_locked IS NULL);