Sql select else

If you want to follow along, you can get the script here: The Hidden SQL. A SELECT statement to return the archive-able records would look like this:. Oracle CASE expression allows you to add if - else logic to SQL statements.

For example, you can use the CASE expression in statements such as SELECT. If that predicate returns no rows, they wanted to run another query. We then select from the first query, and use UNION ALL to combine.

As you can see, the second statement is consistently slower by around –. SQL tools is the CASE statement. With SQL Server you can create computed columns that are . Microsoft SQL Server articles, forums and blogs for database. The standard SQL CASE expression has two forms.

ELSE clause is very handy and whenever you need to perform any. DECLARE @City AS VARCHAR (50). Creating SQL scalar functions is a task that you would perform when.

THEN SET price = ( SELECT ProdPrice FROM V1Table WHERE Id = Pid); ELSE IF.