Conditional Operator in SQL Where Clause

Conditional Operator in SQL Where Clause

You can do that without a case:

SELECT  Team.teamID 
FROM    Team
WHERE   (@teamid = 0 AND Team.teamID > 0)
        OR (@teamid <> 0 AND Team.teamID = @teamid)

Conditional WHERE clause in SQL Server

Try this

SELECT 
    DateAppr,
    TimeAppr,
    TAT,
    LaserLTR,
    Permit,
    LtrPrinter,
    JobName,
    JobNumber,
    JobDesc,
    ActQty,
    (ActQty-LtrPrinted) AS L,
    (ActQty-QtyInserted) AS M,
    ((ActQty-LtrPrinted)-(ActQty-QtyInserted)) AS N
FROM 
    [test].[dbo].[MM]
WHERE 
    DateDropped = 0
    AND (
    (ISNULL(@JobsOnHold, 0) = 1 AND DateAppr >= 0) 
    OR 
    (ISNULL(@JobsOnHold, 0) != 1 AND DateAppr != 0)
    )

You can read more about conditional WHERE here.

SQL how to include conditional in where clause

This is a little more concise, that could be one line

(DATEPART(mm,cs.timestamp) = @month 
 OR (@accumulate = 1 AND DATEPART(mm, cs.timestamp) < @month))

or, with a nod to Sean's comment (which is good advice)

(DATEPART(MONTH,cs.timestamp) = @month 
 OR (@accumulate = 1 AND DATEPART(MONTH, cs.timestamp) < @month))

or, if you want a short but opaque and nasty bit of code (and @accumulate is a bit)

SIGN(@month - DATEPART(MONTH, cs.timestamp)) in (0, @accumulate)

Is there such thing as a conditional operator in SQL Server?

Is there such a thing as using an IF/ELSE in the WHERE clause

Absolutely, there is a CASE expression - not only in the WHERE clause, but also in other parts of your query. However, a more common approach is to use logical expressions in the WHERE clause that force SQL Server to take one condition or the other depending on the parameter setting.

my condition would be if @Customer = '' then select all

If you would like to select all customers when the parameter is set to empty, or select all customers where the parameter is not set, you can do this:

SELECT *
FROM SalesData
WHERE @Customer = ''
   OR  Customer = @Customer

If @Customer is set to '', the first clause of the OR expression will be TRUE for all rows, so all customers would be returned. However, when @Customer is non-empty, the second part of the expression would be evaluated.

How do I create a conditional WHERE clause?

Could you just do the following?

SELECT
    *
FROM
    Table
WHERE
    (@booleanResult = 1
    AND Column1 = 'value1')
OR
    (@booleanResult = 0
    AND Column1 = 'value1'
    AND Column2 = 'value2')

SQL: IF clause within WHERE clause

Use a CASE statement

UPDATE: The previous syntax (as pointed out by a few people) doesn't work. You can use CASE as follows:

WHERE OrderNumber LIKE
  CASE WHEN IsNumeric(@OrderNumber) = 1 THEN 
    @OrderNumber 
  ELSE
    '%' + @OrderNumber
  END

Or you can use an IF statement like @N. J. Reed points out.

Conditional Statements Inside A Where Clause

Try this: (I think I got your logic right...)
Cause you want it if the status is 1 for any database, but only want the status 3s for the databases that are not that single specified one...

   Select ...
   Where id = @my_id  
      And (status = 1 Or 
         (Db_Name() <> @DbName And status = 3))

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