Insert query in case statement

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Hello Coders, I have the below-mentioned query but It is not executed & throwing error at 'case' and 'end' word. plz help.

Based on condition I want to run Insert Query.

Thanks In Advance

What I have tried:

declare @holidaydt as date='28-Mar-2020'
declare @lastworkingdt as date='27-Mar-2020'
declare @tml as int
select @tml=count(*) from Balances where TrnDate=@holidaydt

CASE when @tml >0 then 'Do Nothing' WHEN @tml=0 THEN 
insert  into balances(acno,TrnDate,OpeningBalance,ClosingBalance,Branchcode)
(select acno,@holidaydt,OpeningBalance,ClosingBalance,Branchcode from balances where TrnDate=@lastworkingdt) END

Posted 25-Apr-21 0:20am

Hemil Gandhi

Updated 25-Apr-21 2:45am

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Comments

Richard MacCutchan 25-Apr-21 6:54am

What error?

Hemil Gandhi 25-Apr-21 7:38am

Incorrect Syntax near "CASE"
Incorrect Syntax near "END"

Richard MacCutchan 25-Apr-21 7:55am

Check the syntax in the documentation for the version of SQL that you are using. I do not think that a complete SELECT statement can be followed by a CASE clause.

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Wendelius · Accepted Answer · 2021-04-25T02:45:00

If I understand your problem correctly you can use IF instead of CASE. For example

SQL

declare @holidaydt as date='28-Mar-2020'
declare @lastworkingdt as date='27-Mar-2020'
declare @tml as int
select @tml=count(*) from Balances where TrnDate=@holidaydt

IF @tml=0 BEGIN
   insert  into balances(acno,TrnDate,OpeningBalance,ClosingBalance,Branchcode)
   select acno,@holidaydt,OpeningBalance,ClosingBalance,Branchcode 
   from balances 
   where TrnDate=@lastworkingdt;
END