Create a Trigger in insert operation

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What's wrong with my following query

create trigger newcall on callbook
after insert
as
begin
declare @new=select max(new) from tblMRM where month=month(getdate()) and year=year(getdate());
update tblMRM SET new=@new+1 where month=month(getdate()) and year=year(getdate());
GO

here callbook is table.When insert operation occur in callbook then I want to increase value of new(filed name) of table tblMRM by one.

When I execute my query ,it show following error:

Msg 102, Level 15, State 1, Procedure newcall, Line 5 Incorrect syntax near '='. Msg 137, Level 15, State 2, Procedure newcall, Line 6 Must declare the scalar variable "@new".

please help...

I am new in trigger...

Posted 8-Aug-12 23:28pm

Kailash_Singh

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Mohamed Mitwalli · Answer 1 · 2012-08-09T00:00:00

Solution 1

Hi ,
Check this

SQL

create trigger newcall on callbook
after insert
as
begin
declare @new int --here what you missed
select @new=(select max(new) from tblMRM where month=month(getdate()) and year=year(getdate()))
update tblMRM SET new=@new+1 where month=month(getdate()) and year=year(getdate());
GO

Best Regards
M.Mitwalli

Posted 9-Aug-12 0:00am

Mohamed Mitwalli

Comments

Prasad_Kulkarni 16-Aug-12 2:12am

A +5!

Mohamed Mitwalli 16-Aug-12 4:29am

Thank you Prasad :)