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How to use if/else condition in select in MySQL?
Let us first create a table −
mysql> create table DemoTable1966 ( UserId int NOT NULL AUTO_INCREMENT PRIMARY KEY, UserName varchar(20), PhotoLiked int ); Query OK, 0 rows affected (0.00 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable1966(UserName,PhotoLiked) values('Chris',57);
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1966(UserName,PhotoLiked) values('David',100);
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1966(UserName,PhotoLiked) values('Mike',68);
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1966(UserName,PhotoLiked) values('Sam',78);
Query OK, 1 row affected (0.00 sec)Display all records from the table using select statement −
mysql> select * from DemoTable1966;
This will produce the following output −
+--------+----------+------------+ | UserId | UserName | PhotoLiked | +--------+----------+------------+ | 1 | Chris | 57 | | 2 | David | 100 | | 3 | Mike | 68 | | 4 | Sam | 78 | +--------+----------+------------+ 4 rows in set (0.00 sec)
Here is the query to use if/else condition in SELECT with MySQL −
mysql> select if(PhotoLiked > 75,UserName,'Likes are less') as Result from DemoTable1966;
This will produce the following output −
+------------------------------------------------+ | Result | +------------------------------------------------+ | Likes are less | | David | | Likes are less | | Sam | +------------------------------------------------+ 4 rows in set (0.00 sec)
Updated on: 31-Dec-2019
1K+ Views
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