How do you write a case in a select statement?
Case statement with Order By clause
- Select Employee Name, Gender, Salary.
- of Employee.
- BOX ORDER Gender.
- WHEN ‘F’ THEN Salary End DESC,
- Case WHEN Gender=’M’ THEN Salary.
- FINAL.
Table of Contents
Can we use the select statement inside the oracle case statement?
With the CASE expression, multiple previous statements on the same table can be avoided using Oracle’s case selection. of emp; For example: the CASE expression can also be nested. For example: the data types of the return values must be the same.
How do you add an IF condition in select?
Use a CASE statement: SELECT CASE WHEN (Obsolete = ‘N’ OR InStock = ‘Y’) THEN ‘Y’ ELSE ‘N’ END as Available, etc. See the working demo: if then no case in SQL Server. Combined give 1 or 0.
When to use a case in a SELECT statement?
Using a SELECT statement with a simple CASE expression. Within a SELECT statement, a simple CASE expression allows only one equality check; no other comparisons are made. The following example uses the CASE expression to change the display of product line categories to make them more understandable.
Can a case statement be nested in another case?
CASE can be nested in another CASE, as well as in another IF…ELSE statement. Besides SELECT, CASE can be used with other SQL clause like UPDATE, ORDER BY. ELSE is optional in the CASE statement.
How does case statement work in SQL?
The SQL CASE statement The CASE statement steps through the conditions and returns a value when the first condition is met (like an IF-THEN-ELSE statement). So once a condition is true it will stop reading and return the result. If neither condition is true, it returns the value of the ELSE clause.
What is an example of a SELECT statement?
I have a SQL statement that has a CASE of SELECT and I just can’t get it right. Can you show me an example of a CASE where the cases are the conditions and the results are of the cases? For example: Select xxx, yyy case: desc case when bbb then ‘blackberry’; when sss then ‘samsung’; end from (select ???? …..