Sql Server在2个数据库之间触发

Question

我有2个数据库。一个名为Test的表格有一个名为Vehicles的表格。另一个名为Test2的表格名为Clients。

当我在Test中的Vehicles表上插入新记录时，我需要更新Test2中Clients表上的NumVehicles字段。

这可能使用触发器？

Answer 1

你需要像

USE Test; 
GO 
CREATE TRIGGER afterVehicleInsert ON Vehicles AFTER INSERT 
AS 
BEGIN 
    IF @@rowcount = 0 RETURN; 

    UPDATE Test2.[schema_name(default schema is dbo)].Clients 
    SET NumVehicles = NumVehicles +1 -- or whatever it should be 
    FROM Test2.[schema_name(default schema is dbo)].Clients c 
    INNER JOIN inserted i ON ([your join condition]) 
END; 
GO 

在当前和另一个数据库更新表之间的唯一区别是，你需要使用[DB_NAME]指“远程”表。[模式名]。[表名]

Answer 2

这是工作的代码如下

USE BioStar; 
    GO 
    CREATE TRIGGER trgAfterInsertnew ON [dbo].[TB_EVENT_LOG] 
    FOR INSERT 
    AS 
     declare @nDateTime int; 
     declare @nReaderIdn int; 
     declare @nEventIdn int; 
     declare @nUserID int; 
     declare @nIsLog smallint; 
     declare @nTNAEvent smallint; 
     declare @nIsUseTA smallint; 
     declare @nType smallint; 


     select @nDateTime=i.nDateTime from inserted i; 
     select @nDateTime=i.nReaderIdn from inserted i; 
     select @nEventIdn=i.nEventIdn from inserted i; 
     select @nUserID=i.nUserID from inserted i; 

     select @nIsLog=i.nIsLog from inserted i;  
     select @nTNAEvent=i.nTNAEvent from inserted i; 
     select @nIsUseTA=i.nIsUseTA from inserted i;  
     select @nType=i.nType from inserted i; 
     insert into [HRM].dbo.Device_Data 
       (nDateTime,nReaderIdn,nEventIdn,nUserID,nIsLog,nTNAEvent,nIsUseTA,nType) 
     values(@nDateTime,@nDateTime,@nEventIdn,@nUserID,@nIsLog,@nTNAEvent,@nIsUseTA,@nType); 


     --set @audit_action='Inserted Record -- After Insert Trigger.'; 
      PRINT 'AFTER DELETE TRIGGER fired.' 
    GO 

给出