Select Statement In Case Sql
We can use a case statement with group by clause as well.
Select statement in case sql. Within a select statement the searched case expression allows for values to be replaced in the result set based on comparison values. Addtionally you need to use quotename on the table name to protect against sql injection attacks and give select. So once a condition is true it will stop reading and return the result.
If no conditions are true it returns the value in the else clause. Sql home sql intro sql syntax sql select sql select distinct sql where sql and or not sql order by sql insert into sql null values sql update sql delete sql select top sql min and max sql count avg sum sql like sql wildcards sql in sql between sql aliases sql joins sql inner join sql left join sql right join sql full join sql self join sql. Sql server azure sql datenbank azure synapse analytics sql dw parallel data warehouse applies to.
The following example displays the list price as a text comment based on the price range for a product. Sql server azure sql database azure synapse analytics sql dw parallel data warehouse wertet eine liste von bedingungen aus und gibt einen von mehreren möglichen ergebnisausdrücken zurück. Case transact sql case transact sql 06 28 2017.
You need to use set statement instead for variable assignments but this requires the select statement to be a singleton statement. Suppose we want to group employees based on their salary. Additionally if your select statement on employees returns multiple rows then the result of the assignment if done correctly is not predictable.
The case statement goes through conditions and returns a value when the first condition is met like an if then else statement.
