else if sql server
IF (Expression 1)
BEGIN
Statement 1;
END
ELSE IF (Expression 2)
BEGIN
Statement 2;
END
..........
ELSE
BEGIN
Default Statement;
ENDelse if sql server
IF (Expression 1)
BEGIN
Statement 1;
END
ELSE IF (Expression 2)
BEGIN
Statement 2;
END
..........
ELSE
BEGIN
Default Statement;
ENDsql if else
-- PL/SQL
BEGIN
IF my_val = 1 THEN [...]
ELSE [...]
END IF;
END;
-- In a query (DUAL is for Oracle)
SELECT CASE WHEN my_col = 1 THEN 'Ok' ELSE 'Ko' END AS my_result
FROM DUAL;if else sql
IF Boolean_expression
BEGIN
-- Statement block executes when the Boolean expression is TRUE
END
ELSE
BEGIN
-- Statement block executes when the Boolean expression is FALSE
ENDcase 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 'A'
WHEN (1+6 = 7) THEN 'B'
WHEN (1+6 = 8) THEN 'C'
ELSE 'D'
END
FROM DUAL;
Result would be 'B' since it is the first
correct answerSQL IF ELSE
SELECT CASE
WHEN A + B > C AND B + C > A AND A + C > B THEN
CASE
WHEN A = B AND B = C THEN 'Equilateral'
WHEN A = B OR B = C OR A = C THEN 'Isosceles'
ELSE 'Scalene'
END
ELSE 'Not A Triangle'
END
FROM TRIANGLES;t-sql if else
IF 1=1
SELECT 1
ELSE
SELECT 0
-- returns 1
-- Definition
IF Boolean_expression
{ sql_statement | statement_block }
[ ELSE
{ sql_statement | statement_block } ]Copyright © 2021 Codeinu
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