update with subquery sql server

dbo. ClassInfo as CON t.class=c.id where c.id= ' 1 '--where the way to do multiple table updates update t SET T.remark = ' class 02 student ' from dbo. Student as T, dbo. ClassInfo as Cwhere t.class=c.id and c.id= ' 2 '--7, Output view data updated before and after update dbo. Student set stusex= ' female ' OUTPUT inserted.stusex,deleted.stusexwhere stuid= ' 007 '--8, the command after the SET statement in

static void Update (String connstring, DataTable table){SqlConnection conn = new SqlConnection (connstring);SqlCommand COMM = conn. CreateCommand ();Comm.commandtimeout = _commandtimeout;Comm.commandtype = CommandType.Text;SqlDataAdapter adapter = new SqlDataAdapter (comm);SqlCommandBuilder Commandbulider = new SqlCommandBuilder (adapter);Commandbulider.conflictoption = conflictoption.overwritechanges;Try{Conn. Open ();Set the number of processing ba

operation violates one or more constraints. If you ignore this conflict, it should be resolved in other ways. You can log the details of this conflict and then send the log entries to the system administrator.How does a schema prevent conflicts?To make schema changes on a table in a publication that supports updating subscriptions, you must stop all activities on the table at the Publisher and Subscribers, and you must propagate the pending data changes to all nodes before you can make schema c

SQL Server deadlock makes the problem that we often encounter, the deadlock of database operation is unavoidable, this article does not intend to discuss how deadlocks are produced, the focus is to resolve deadlocks. Hopefully it will help you learn about the deadlock in SQL Server.Deadlocks are not unfamiliar to DBAs or database developers, and they can be trigg

To update a binary file in SQL Server using the OleDbCommand object Author Zhu Yi Using the Oledbconnectionoledbcommand in Ado.net makes it easy to update binaries in SQL Server, the following is a detailed code demonstration Demo

Tags: io for ar art CTI on EF C SQLIn SQL Server, trigger, INSERT, UPDATE, delete state:CREATE TRIGGER t_inms_alarmsOn [PHS]. [dbo]. [Alarmcurrent]For INSERT, DELETEAsDECLARE @rows intSELECT @rows = @ @rowcountIF @rows = 0Return--If the table is inserted, synchronize the update alarmsmiddletblIF EXISTS (select 1 from i

meet the current conditionsSET @myDoc. Modify ('Insertif (count (/root/location/step) Then element step {"This is new step"}Else ()As first into (/root/location) [1] ')SELECT @myDoc;2. Update XML DECLARE @myDoc XML SET @myDoc = ' Laborhours= "1.1" Machinehours= ". 2" >manufacturing steps is described here. SELECT @myDoc; --The value of the LaborHours property in the replacement node location is SET @myDoc. Modify (' Replace value of (/roo

Dynamic Recently looked back at the SQL Server books, mainly on the SQL related subqueries and crosstab knowledge. The difference between a correlated subquery and a normal subquery is that the related subquery references the colu

structure without data Method Two actually is also good is a method of the MS SQL self-brought first to have a full backup of the database this is more important than the other is relatively simple Back up the thing log and then in the options to back up the log tail with these 2 things basically OK first restore the complete database Select this do not roll back and then restore the things log Choose the time period when the wrong operation was

INNER JOIN dbo.sysobjects D on a.id = d.id and D.xtype = ' U ' and D.name "+ TableName +@"' and A.name= '"+ FieldName +@"'", connection)) { varRET =cmd. ExecuteScalar (); if(ret = =NULL) return NULL; returnret. ToString (); } } Private BOOLAddfielddescription (SqlConnection connection,stringTableName,strin

Label:Now, I have two tables, one s_person,s_user.S_personS_userI want to change the account in S_user form to S_person account in bulk now.We can see that there is a field in the S_user table that is associated with the S_person table. That's person_id, and that's what we're going to update.When we find this relationship, we won't be hard to write SQL.Update S_user set account=p.account from S_person p where p.id=s_user.person_id;I'm sorry, the chart will be back tomorrow.batch

Label:SELECT Info_key, Info_value, Info_status, Edit_timeF ROM (SELECT * from ' detail ' WHERE login = ' [e-mail protected] ' ORDER by Edit_time DESC) as AAAGROUP by Info_key Hope to realize the sub-query based on alias by Thinkphp, and finally refer to the following article to realize. Http://www.thinkphp.cn/update/122.html The following is the original text in the Help manual. (Search sub-query) New subquery