MySQL IF Function: Examples

Examples
Sample Database

#1

SELECT IF(1 = 2,' true','false');

#2

SELECT IF(1 = 1,' true','false');

#3

SELECT 
    customerNumber, customerName, state, country
FROM
    customers;

#4

SELECT 
    customerNumber,
    customerName,
    IF(state IS NULL, 'N/A', state) state,
    country
FROM
    customers;

#5

SELECT 
    SUM(IF(status = 'Shipped', 1, 0)) AS Shipped,
    SUM(IF(status = 'Cancelled', 1, 0)) AS Cancelled
FROM
    orders;

#6

SELECT DISTINCT
    status
FROM
    orders
ORDER BY status;

#7

SELECT 
    COUNT(IF(status = 'Cancelled', 1, NULL)) Cancelled,
    COUNT(IF(status = 'Disputed', 1, NULL)) Disputed,
    COUNT(IF(status = 'In Process', 1, NULL)) 'In Process',
    COUNT(IF(status = 'On Hold', 1, NULL)) 'On Hold',
    COUNT(IF(status = 'Resolved', 1, NULL)) 'Resolved',
    COUNT(IF(status = 'Shipped', 1, NULL)) 'Shipped'
FROM
    orders;

#8

SELECT status, COUNT(STATUS)
FROM orders
GROUP BY status

Table List

customers

SELECT * FROM customers;

employees

SELECT * FROM employees;

offices

SELECT * FROM offices;

orderdetails

SELECT * FROM orderdetails;

orders

SELECT * FROM orders;

payments

SELECT * FROM payments;

productlines

SELECT * FROM productlines;

products

SELECT * FROM products;

Result