常用且老记不住的几个ORACLE技巧

--设置sql到oracle的数据库连接

sp_addlinkedserver 'THSCMP','ORACLE','MSDAORA','THSCMP' ---THSCMP，CMP数据库名

sp_addlinkedsrvlogin 'THSCMP','FALSE',NULL,'HSCMP','HSCMP'

--闪回查询

select * from tabel_aa as of timestamp to_timestamp('2011-01-06 11:30:00', 'yyyy-mm-dd hh24:mi;ss')

--赋予权限

grant create any table to lsbh0826

Oracle创建序列

create sequence seq_a minvalue 1000 maxvalue 99999999 start with 1000 increment by 1 nocache;

查询序列

select seq_a.nextval from dual;

递归查询--这里递归的是组织编码

select orgcode from torgmanage where shorpgrade like pShopgrade start with orgcode=porgcode connect by prior orgcode=preorgcode