Alternative to MySQL CASE WHEN in MySQL

MySQLMySQLi Database

Use IF() method as an alternative to CASE WHEN in MySQL. Let us first create a table −

mysql> create table DemoTable1593
   -> (
   -> PlayerScore int
   -> );
Query OK, 0 rows affected (0.44 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable1593 values(78);
Query OK, 1 row affected (0.11 sec)
mysql> insert into DemoTable1593 values(0);
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable1593 values(89);
Query OK, 1 row affected (0.12 sec)
mysql> insert into DemoTable1593 values(0);
Query OK, 1 row affected (0.16 sec)

Display all records from the table using select statement −

mysql> select * from DemoTable1593;

This will produce the following output −

+-------------+
| PlayerScore |
+-------------+
|          78 |
|           0 |
|          89 |
|           0 |
+-------------+
4 rows in set (0.00 sec)

Here is the query to use MySQL IF() −

mysql> select if(PlayerScore=0,'',PlayerScore) from DemoTable1593;

This will produce the following output −

+----------------------------------+
| if(PlayerScore=0,'',PlayerScore) |
+----------------------------------+
| 78                               |
|                                  |
| 89                               |
|                                  |
+----------------------------------+
4 rows in set (0.00 sec)
raja
Published on 16-Dec-2019 06:53:30
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