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MySQL query to perform selection using AND OR
Let us first create a table −
mysql> create table DemoTable ( StudentId int, StudentName varchar(20), StudentSubject varchar(20) ); Query OK, 0 rows affected (0.62 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable values(10,'Chris','MongoDB'); Query OK, 1 row affected (0.21 sec) mysql> insert into DemoTable values(11,'David','MySQL'); Query OK, 1 row affected (0.22 sec) mysql> insert into DemoTable values(12,'Bob','Java'); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable values(10,'Carol','MySQL'); Query OK, 1 row affected (0.51 sec) mysql> insert into DemoTable values(10,'Chris','MongoDB'); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable values(14,'David','MySQL'); Query OK, 1 row affected (0.12 sec)
Display all records from the table using select statement −
Mysql> select *from DemoTable;
This will produce the following output −
+-----------+-------------+----------------+ | StudentId | StudentName | StudentSubject | +-----------+-------------+----------------+ | 10 | Chris | MongoDB | | 11 | David | MySQL | | 12 | Bob | Java | | 10 | Carol | MySQL | | 10 | Chris | MongoDB | | 14 | David | MySQL | +-----------+-------------+----------------+ 6 rows in set (0.00 sec)
Following is the query to perform selection using AND OR −
mysql> select *from DemoTable where StudentName='David' and StudentSubject='MySQL' OR StudentId=11;
This will produce the following output −
+-----------+-------------+----------------+ | StudentId | StudentName | StudentSubject | +-----------+-------------+----------------+ | 11 | David | MySQL | | 14 | David | MySQL | +-----------+-------------+----------------+ 2 rows in set (0.00 sec)
Updated on: 09-Oct-2019
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