Or you can use an IF statement like @N. J. Reed points out. Depending on the flavour of SQL you may need to tweak the casts on the order. How can I write a query to get doctor details using these conditions in . DoctorsList ' IF (NOT @WhereStatement IS NULL) SET @sql = @sql +. Dear All, I was wondering what the syntax what be to append an IF statement in the where clause for example SELECT * FROM employee WHERE IF.
Can I use "CASE WHEN THEN ELSE END" in the where clause of a SQL statement? I have sucessfully used it in the select portion of my. This is most easily accomplished in all versions of SQL Server using the CASE statement, which acts as a logical IF THEN ELSE expression and returns. and Usage. The IF() function returns a value if a condition is TRUE, or another value if a condition is FALSE. Syntax. IF(condition, value_if_true, value_if_false).
IF ELSE clause is very handy and whenever you need to perform any conditional operation, you can achieve your results using it. But there. I think the question is a little misleading & causes people to not think properly. Looks like the 3 conditions won't overlap, so all you need to do is OR the 3. CASE expressions can be used anywhere in a SQL statement an expression If an ELSE is defined, and no matches are made, then “otherResult” is returned. If no WHEN condition is true then the value of the case expression is the result a query might fail with a coercion error even if the failing branch would not have.