sql case sql code example
Example 1: sql CASE
/*CASE statements are used to create different outputs and is
used by SQL as a way to handle if-then logic.*/
SELECT column_name,
CASE
WHEN condition THEN
WHEN condition THEN
ELSE
END
FROM table_name;
Example 2: end as sql
select
case when ID in (
then
else
end as Person
from Table.Names
select
case when ID in (
then
else
end Person
from Table.Names
Example 3: case statement in sql
Case Statement basically
Like IF - THEN - ELSE statement.
The CASE statement goes through conditions
and returns a value when the
first condition is met and
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.
If there is no ELSE part and
no conditions are true, it returns NULL.
FOR EXAMPLE =
CASE
WHEN condition1 THEN result1
WHEN condition2 THEN result2
WHEN conditionN THEN resultN
ELSE result
END
-- example:
SELECT
CASE
WHEN (1+6 = 6) THEN
WHEN (1+6 = 7) THEN
WHEN (1+6 = 8) THEN
ELSE
END
FROM DUAL;
Result would be
correct answer