日期:2014-05-17 浏览次数:21265 次
sys@ORCL> desc cat
Name Null? Type
----------------------------------------------------- -------- ------------------------------------
TABLE_NAME NOT NULL VARCHAR2(30)
TABLE_TYPE VARCHAR2(11)
sys@ORCL> desc tab
Name Null? Type
----------------------------------------------------- -------- ------------------------------------
TNAME NOT NULL VARCHAR2(30)
TABTYPE VARCHAR2(7)
CLUSTERID NUMBER
sys@ORCL> select * from dict where table_name='CAT';
TABLE_NAME COMMENTS
---------- -----------------------------------
CAT Synonym for USER_CATALOG
sys@ORCL> select * from dict where table_name='USER_CATALOG';
TABLE_NAME