How to use “OR” condition in MySQL CASE expression?\\n

Set the same condition like “OR” in a MySQL CASE expression. Let us first create a sample table.

Following is the query

mysql> create table caseOrConditionDemo    -> (    -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    -> Name varchar(100),    -> Score int    -> ); Query OK, 0 rows affected (0.49 sec)

Following is the query to insert some records in the table using insert command:

mysql> insert into caseOrConditionDemo(Name,Score) values('Larry',85); Query OK, 1 row affected (0.18 sec) mysql> insert into caseOrConditionDemo(Name,Score) values('Sam',74); Query OK, 1 row affected (0.20 sec) mysql> insert into caseOrConditionDemo(Name,Score) values('Mike',76); Query OK, 1 row affected (0.16 sec) mysql> insert into caseOrConditionDemo(Name,Score) values('Carol',65); Query OK, 1 row affected (0.20 sec)

Following is the query to display records from the table using select command:

mysql> select *from caseOrConditionDemo;

This will produce the following output

+----+-------+-------+ | Id | Name  | Score | +----+-------+-------+ | 1  | Larry | 85    | | 2  | Sam   | 74    | | 3  | Mike  | 76    | | 4  | Carol | 65    | +----+-------+-------+ 4 rows in set (0.00 sec)

Following is the query to use a condition like “OR” in MySQL CASE expression:

mysql> select Id,Name,Score,    -> case when Score > 75 then 'Better Score'    -> when Score > 70 then 'Good Score'    -> else 'Not Good Score'    -> end as 'Performance'    -> from caseOrConditionDemo;

This will produce the following output

+----+-------+-------+----------------+ | Id | Name  | Score | Performance | +----+-------+-------+----------------+ | 1  | Larry | 85    | Better Score   | | 2  | Sam   | 74    | Good Score     | | 3  | Mike  | 76    | Better Score   | | 4  | Carol | 65    | Not Good Score | +----+-------+-------+----------------+ 4 rows in set (0.04 sec)