oracleクエリーテーブルの基本情報
接頭辞をクエリーするすべてのテーブル.
select * from tab where upper(tname) like 'RP%'
Oracle , , : 、 、 、 、 、 。
, :
:
SELECT COUNT(*) FROM ALL_TABLES WHERE OWNER='userName' AND TABLE_NAME='tableName'
:
SELECT count(*) FROM All_Sequences where Sequence_name='REPORTLOG';
DBLINK
select * from dba_objects where object_type='DATABASE LINK'
,
select
utc.column_name,utc.data_type,utc.data_length,utc.data_precision, utc.data_Scale,utc.nullable,utc.data_default,ucc.comments
from
user_tab_columns utc,user_col_comments ucc
where
utc.table_name = ucc.table_name and utc.column_name = ucc.column_name and utc.table_name = 'ONLINEXLS'
order by column_id
:order by column_id 。
,
select col.column_name from
user_constraints con,user_cons_columns col
where
con.constraint_name=col.constraint_name and con.constraint_type='P' and col.table_name='ONLINEXLS'
,
select distinct(ucc.column_name) column_name,rela.table_name,rela.column_name column_name1
from
user_constraints uc,user_cons_columns ucc, (select t2.table_name,t2.column_name,t1.r_constraint_name from user_constraints t1,user_cons_columns t2 where t1.r_constraint_name=t2.constraint_name and t1.table_name='ONLINEXLS') rela
where
uc.constraint_name=ucc.constraint_name and uc.r_constraint_name=rela.r_constraint_name and uc.table_name='ONLINEXLS'
1、 ( , , ):
select t.*,i.index_type from user_ind_columns t,user_indexes i where t.index_name = i.index_name and t.table_name = i.table_name and t.table_name =
2、 ( , ) :
select cu.* from user_cons_columns cu, user_constraints au where cu.constraint_name = au.constraint_name and au.constraint_type = 'P' and au.table_name = ' ' ;
select column_name from user_cons_columns wherE CONSTRAINT_NAME in (select CONSTRAINT_NAME from user_constraints where table_name =upper(' ') and CONSTRAINT_TYPE='P');
3、 ( , ):
select column_name from user_cons_columns cu, user_constraints au where cu.constraint_name = au.constraint_name and au.constraint_type = 'U' and au.table_name =
4、 ( , , ):
select * from user_constraints c where c.constraint_type = 'R' and c.table_name =
:
select * from user_cons_columns cl where cl.constraint_name =
:
select * from user_cons_columns cl where cl.constraint_name =
5、
select t.*,c.COMMENTS from user_tab_columns t,user_col_comments c where t.table_name = c.table_name and t.column_name = c.column_name and t.table_name =