有点扯远了,上面说到用户B要引用用户A的表,不想使用“用户A.表”的形式,其实除了使用同义词外,还可以使用current_schema来改变当前用户使用的schema。 语法:alter session set current_schema=名称; 尽管当前模式转换了,但是否有读写权限取决于用户是否被授权了,换句话说,这个语句并不能决定改变了shcema,
}publicfinalSession currentSession()throwsHibernateException {//从线程局部量context中尝试取出已经绑定到线程的SessionSession current =existingSession( factory );//如果没有绑定到线程的Sessionif(current ==null) {//打开一个”事务提交后自动关闭”的Sessioncurrent =buildOrObtainSession(); current.getTransaction...
-- Do the following in Session 2. SELECT @@IDENTITY; /* Returns NULL because there has been no INSERT action up to this point in this session.*/ SELECT SCOPE_IDENTITY(); /* Returns NULL because there has been no INSERT action up to this point in this scope in this session.*/ SELEC...
Azure SQL Managed Instance This function returns the transaction ID of the current transaction in the current session. Transact-SQL syntax conventions Syntax syntaxsql CURRENT_TRANSACTION_ID( ) Return types bigint Return Value The transaction ID of the current transaction in the current session, taken...
查看被锁住的session(带上dba_objects) dba_objects.object_name可以显示对象名等,如表名。这样在kill的时候更有把握些。 SELECT s.sid, -- session_id s.serial#, -- serial# 是序列号 s.username, -- 用户(表空间) s.logon_time, -- 登录时间 ...
obclient>ALTERSESSIONSETTIME_ZONE='-05:00';Query OK,0rowsaffected obclient>SELECTCURRENT_TIMESTAMP(2)FROMDUAL;+---+|CURRENT_TIMESTAMP(2)|+---+|17-NOV-2104.22.51.13AM-05:00|+---+1rowinset 设置当前会话时区至 GMT+8 时区,返回当前会话的时间及会话时区信息,且调整秒的小数位精度为2。 obcl...
Close this notice Database/ Oracle/ Oracle Database/ Release 12.2 SQL Language Reference Share on LinkedInShare on XShare on FacebookShare on Email Syntax Description of the illustration current_date.eps Purpose CURRENT_DATEreturns the current date in the session time zone, in a value in the ...
CURRENT_TIMESTAMPreturns the current date and time in the session time zone, in a value of data typeTIMESTAMPWITHTIMEZONE. The time zone offset reflects the current local time of the SQL session. If you omit precision, then the default is 6. The difference between this function andLOCALTIME...
The name 'Session' does not exist in the current context .try{int flags = Session.DefaultSession.ExecuteNonQuery(sql);count++;}catch (Exception ew) { } 答案 你这个Session是哪从来的,找到它的定义.相关推荐 1The name 'Session' does not exist in the current context .try{int flags = Session....
HttpContext.Current.Session: 概念:HttpContext.Current.Session是ASP.NET中的一个静态属性,用于表示当前请求的会话状态信息。 分类:属于ASP.NET框架的一部分,用于处理Web应用程序中的会话状态。 优势:提供了一种简单方便的方式来管理会话状态,无需额外的配置或自定义实现。