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How do you force MySQL LIKE to be case sensitive?
To force MySQL LIKE to be case sensitive with the help of LIKE BINARY, the following is the syntax −
select yourColumnName like binary 'anyStringValue' from yourTableName;
To understand the above concept, let us create a table. The following is the query to create a table −
mysql> create table LikeBinaryDemo −> ( −> Name varchar(200) −> ); Query OK, 0 rows affected (0.58 sec)
Now you can insert records with small letters to force the MySQL LIKE to be case sensitive −
mysql> insert into LikeBinaryDemo values('john');
Query OK, 1 row affected (0.12 sec)Display the records in the table. The query is as follows −
mysql> select *from LikeBinaryDemo;
The following is the output −
+------+ | Name | +------+ | john | +------+ 1 row in set (0.00 sec)
Case 1 − Using BINARY
Now you can use LIKE BINARY to force the MySQL Like to be case sensitive.
LIKE BINARY. In this case, we will get value 0 when we compare ‘john’ with ‘JOHN’. The query is as follows −
mysql> select Name like binary 'JOHN' from LikeBinaryDemo;
The following is the output −
+-------------------------+ | Name like binary 'JOHN' | +-------------------------+ | 0 | +-------------------------+ 1 row in set (0.00 sec)
Case 2 − Without using BINARY
Now let us see what will happen when we are not using BINARY. The query is as follows −
mysql> select Name like 'JOHN' from LikeBinaryDemo;
The following is the output −
+------------------+ | Name like 'JOHN' | +------------------+ | 1 | +------------------+ 1 row in set (0.00 sec)
You can use LIKE BINARY to force MySQL to be case sensitive.
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