getting an error while run sql query using IF condition - sql

Question

Getting an error when i run the query
INSERT INTO `received_order`(
`retailer_name`,
`order_id`,
`dboy_username`,
`product_id`,
`quantity`,
`create_date`,
`timestamp`,
`payment_status`,
`delivery_status`,
`device_type`
)
VALUES(
'ankur',
'OD123',
'manish',
'PIDEAB565',
(
SELECT
`product_quantity` IF(product_quantity > 50, 50, 0)
FROM
`master_stock`
WHERE
`product_id` = 'PIDEAB565'
),
'',
'',
'',
'',
''
)
MySQL said:
1064 - You have an error in your SQL syntax; check the manual that
corresponds to your MariaDB server version for the right syntax to use
near 'IF(product_quantity
50, 50, 0)
FROM
master_stock
WHERE
' at line 20

Answer 1

In line product_quantity IF(product_quantity > 50, 50, 0) IF can not be used like this. You should use case statement instead.
Try This
INSERT INTO `received_order`(
`retailer_name`,
`order_id`,
`dboy_username`,
`product_id`,
`quantity`,
`create_date`,
`timestamp`,
`payment_status`,
`delivery_status`,
`device_type`
)
VALUES(
'ankur',
'OD123',
'manish',
'PIDEAB565',
(
SELECT
case when `product_quantity`>50 then 50 else 0 end
FROM
`master_stock`
WHERE
`product_id` = 'PIDEAB565'
),
'',
'',
'',
'',
''
)