Syntax error Implement WHERE IN vs OR in MySQL with similar example

Implement WHERE IN vs OR in MySQL with similar example

The IN uses an index while OR does not use an index in MySQL.

Let us first create a table −

mysql> create table DemoTable711 (
   Id int,
   Name varchar(100)
);
Query OK, 0 rows affected (0.92 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable711 values(100,'Chris');
Query OK, 1 row affected (0.15 sec)
mysql> insert into DemoTable711 values(101,'Robert');
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable711 values(102,'Carol');
Query OK, 1 row affected (0.35 sec)
mysql> insert into DemoTable711 values(103,'Mike');
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable711 values(104,'Sam');
Query OK, 1 row affected (0.15 sec)

Display all records from the table using select statement −

mysql> select *from DemoTable711;

This will produce the following output -

+------+--------+
| Id   | Name   |
+------+--------+
| 100  | Chris  |
| 101  | Robert |
| 102  | Carol  |
| 103  | Mike   |
| 104  | Sam    |
+------+--------+
5 rows in set (0.00 sec)

Following is the query for IN() method −

mysql> select *from DemoTable711 where Id IN(101,103,104);

This will produce the following output -

+------+--------+
| Id   | Name   |
+------+--------+
| 101  | Robert |
| 103  | Mike   |
| 104  | Sam    |
+------+--------+
3 rows in set (0.03 sec)

Following is the query for OR −

mysql> select *from DemoTable711 where Id=101 OR Id=103 OR Id=104;

This will produce the following output -

+------+--------+
| Id   | Name   |
+------+--------+
| 101  | Robert |
| 103  | Mike   |
| 104  | Sam    |
+------+--------+
3 rows in set (0.00 sec)
Updated on: 2019-08-22T07:05:48+05:30

149 Views

Kickstart Your Career

Get certified by completing the course

Get Started
Advertisements