Question

请使用SQL Server 2008 / 2008R2 / 2012语法！

ALTER TRIGGER WriteToLoggOnRep
ON dbo.UNITs 
FOR UPDATE
AS

BEGIN

DECLARE @changed INT
DECLARE @departmentid INT

IF (UPDATE (DEPARTMENTID))  

<!-- info -->
//if a departmentid was change on a unit, that is the case if a unit is sendt to maintenance.(and in other cases, change dep. etc)
//then a new deparmentid is set, the deparmentid set is the MAINTENANCEDEPARTMENTID for the current location
//This integer value will korrenspondere to a DEPARTMENID int the DEPARTMENTs table and 
// a MAINTENANCEDEPARTMENTID in the LOCATIONs table.
// The challenge is to find out whether this id is actually a maintenance id/ maintenance department or not..
// ALL maintenance departments are named MAINTENANCE in the DEPARTMENTs table
// Departments are related/connected to location and not universal among locations
// All Locations have a "MAINTENANCE" and a "IN STOCK" department created initially


 SELECT DEPARTMENNAME FROM DEPARTMENTs WHERE DEPARTMENTID = UPDATE.DEPARTMENTID INTO @DepartmentName;

 IF(@DepartmentName = 'MAINTENANCE')

        SELECT @changed = COUNT(*) FROM Inserted i INNER JOIN Deleted d
                        ON i.UNITID = d.UNITID WHERE ISNULL(i.UNITID,'') = @departmentid

                        IF(@changed > 0)

INSERT INTO LOGGs
                         (DATE, NOTE, UNITID)
SELECT       CURRENT_TIMESTAMP,'SENDT TO Maintenance', UNITID

                        FROM inserted
END
END

<!----->

触发目的：如果将单元发送到维护并写入一些信息，则写入logg：（我也从保养中回来做类似的事情） - curr Datetime - “发送到维护” - UNITID（发送给维护的单位的ID

涉及的表格：

UNITs
UNITID (AI) (P)
SERIALNR
DEPARTMENTID*

DEPARTMENTs
DEPARTMENTID (AI) (P)
DEPARTMENTNAME (Of course, there are several departments called maintenance)
LOCATIONID*

LOCATIONs
LOCATIONID (AI) (P)
LOCATIONNAME
MAINTENANCEDEPARTMENTID (for that current location)
INSTOCKDEPARTMENTID (for that current location)

我需要从表DEPARTMENTs，列DEPARTMENTID（INT auto inc。）中获取值。

对于

部门

我希望并认为这是“接近”，但编译器在几个位置标记问题......

我还考虑将此写入包含在将该单元发送到维护的查询的日志中吗？

但是，有一个独立的触发器来修改它更好吗？

可能有更简单，更好的方法来解决这个问题？我愿意接受建议！如果我没有提供足够的信息，请告诉我！

请使用SQL Server 2008 / 2008R2 / 2012语法！

Answer 1

随便看一下代码，注意到这不是有效的SQL Server语法：

SELECT DEPARTMENNAME FROM DEPARTMENTs WHERE DEPARTMENTID = UPDATE.DEPARTMENTID INTO @DepartmentName;

试试这个：

SELECT @DepartmentName = DEPARTMENNAME
FROM DEPARTMENTs
WHERE DEPARTMENTID = UPDATE.DEPARTMENTID ;

这可能会解决您的问题。

Answer 2

通过将此功能集成到存储函数中解决了这个问题，该函数是从将设备发送到维护的查询中调用的。

在触发器sql server语法中选择查询

2 个答案: