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How to use “OR” condition in MySQL CASE expression?
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)
Updated on: 30-Jul-2019
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