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Comparing two strings in MySQL?
To compare two strings, which are numbers, let us first create a table. Following is the query −
mysql> create table compareTwoStringsDemo -> ( -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> Value varchar(100) -> ); Query OK, 0 rows affected (0.52 sec)
Following is the query to insert some records in the table using insert command −
mysql> insert into compareTwoStringsDemo(Value) values('1235667');
Query OK, 1 row affected (0.66 sec)
mysql> insert into compareTwoStringsDemo(Value) values('999999');
Query OK, 1 row affected (0.11 sec)
mysql> insert into compareTwoStringsDemo(Value) values('999888');
Query OK, 1 row affected (0.17 sec)
mysql> insert into compareTwoStringsDemo(Value) values('567433');
mysql> insert into compareTwoStringsDemo(Value) values('567433');
Query OK, 1 row affected (0.23 sec)
mysql> insert into compareTwoStringsDemo(Value) values('2345123');
Query OK, 1 row affected (0.13 sec)Following is the query to display all records from the table using select statement −
mysql> select *from compareTwoStringsDemo;
This will produce the following output −
+----+---------+ | Id | Value | +----+---------+ | 1 | 1235667 | | 2 | 999999 | | 3 | 999888 | | 4 | 567433 | | 5 | 2345123 | +----+---------+ 5 rows in set (0.00 sec)
Following is the query to compare two strings which are numbers −
mysql> select *from compareTwoStringsDemo -> where cast(Value as signed) = 999999;
This will produce the following output. The record with the matching string gets displayed −
+----+--------+ | Id | Value | +----+--------+ | 2 | 999999 | +----+--------+ 1 row in set (0.00 sec)
Updated on: 30-Jul-2019
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