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我在执行如下SQL语句时得到的结果如下,在下有一个疑问,从结果中,第二行一共有1447个表,但是表空间名为空,请能为我解答一个这是什么原因,谢谢!
SQL> select tablespace_name,count(table_name) from dba_tables group by tablespace_name;
TABLESPACE_NAME COUNT(TABLE_NAME)
------------------------------ -----------------
PMCOMDB_TBS 4674
1447
SYSAUX 1582
FARSDB_TBS 103
OMCEAMDB_TBS 47
SWMDB_TBS 61
OMCDB_TBS 18988
SYSTEM 586
ITFNDB_TBS 24
PMDB_TBS 2
FMDB_TBS 111
TABLESPACE_NAME COUNT(TABLE_NAME)
------------------------------ -----------------
OMCSMDB_TBS 46
OMCLOGDB_TBS 7
OMCTMDB_TBS 16
OMCTEMPDB_TBS 22
15 rows selected. |
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