问题描述
如果我在employee表中添加包含默认值的新列，例如
if I Add new column at employee table which contains default value like
create table employee(empid [varchar](10),empname [varchar](50),salary [decimal](18, 2),status [varchar] (100)(default ''))
create table employeeHistory(EffectDate [datetime],empid [varchar](10),empname [varchar](50),salary [decimal](18, 2),status [varchar] (100)(default ''))
create trigger UpdateEmployee on employee
after update AS
begin
declare @empid as [varchar](10)
declare @empname as [varchar](50)
declare @salary as [decimal](18, 2)
declare @status as [varchar](100)
select @empid =d.empid from deleted d
select @empname =d.empname from deleted d
select @salary =d.salary from deleted d
if update(status)
select @status=i.statusfrom deleted i
else
begin
select @status=i.status from deleted i
update [employee]
set status='' where empid=@empid
end
Insert into employeeHistory([EffectDate],[empid],[empname],[salary],[status])
SELECT getdate(), empid, empname, salary,status
FROM deleted
end
例如：emp001 xxxx 10000.00支付
emp002 yyyy 12000.00支付
emp003 zzzz 10000.00支付
emp004 aaaa 15000.00支付
emp005 bbbb 12000.00付款
emp006 cccc 12000.00付款
emp007 pppp 10000.00付款
更新员工定薪= 11000.00 where salary = 10000.00
更新后第一次更新行设置其默认值但是休息行不在employee表中设置它。请尽快给我一个解决方案。
Example: emp001 xxxx 10000.00 paid
emp002 yyyy 12000.00 paid
emp003 zzzz 10000.00 paid
emp004 aaaa 15000.00 paid
emp005 bbbb 12000.00 paid
emp006 cccc 12000.00 paid
emp007 pppp 10000.00 paid
update employee set salary =11000.00 where salary =10000.00
after update first updated row set its default value but rest rows don't set it in employee table. Please give me a solution at your earliest.
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