查看 orcle processes ,sessions 和修改orcle processes ,sessions
SQL> show parameter processes
SQL> show parameter sessionsSQL> alter system set processes=300 scope=spfile;
SQL> alter system set sessions=335 scope=spfile;
用户锁定解锁
cmd
slqplus system/密码@实例名
SQL>select instance_name from v$instance;
SQL>alter user username account unlock;
sql>show user;查看当前用户
sql>show parameter instance_name;查看当前数据库实例
序列 如果由于序列产生的值重复可以通过这种方式来增加序列值
select 序列名.nextval from dual;
alter sequence 序列名 increment by 每次增加的数量;
创建数据库链接
create database link baindzjc_LINK
connect to 需要链接的数据库的用户名 identified by 需要链接的数据库的用户密码
using '(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = ip)(PORT = 1521))
)
(CONNECT_DATA =
(service_name=实例名)
)
)';
select * from t_sp_casebaseinfo where caseno not in (select caseno from 相应链接的表名@baindzjc_LINK );