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How to find strings with a given prefix in MySQL?
You can use LIKE operator to find strings with a given prefix.
The syntax is as follows
select *from yourTableName where yourColumnName LIKE 'yourPrefixValue%';
To understand the above syntax, let us create a table. The query to create a table is as follows
mysql> create table findStringWithGivenPrefixDemo -> ( -> UserId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> UserMessage text -> ); Query OK, 0 rows affected (0.82 sec)
Insert some records in the table using insert command.
The query is as follows
mysql> insert into findStringWithGivenPrefixDemo(UserMessage) values('Hi Good Morning !!!');
Query OK, 1 row affected (0.17 sec)
mysql> insert into findStringWithGivenPrefixDemo(UserMessage) values('Hey I am busy!!');
Query OK, 1 row affected (0.20 sec)
mysql> insert into findStringWithGivenPrefixDemo(UserMessage) values('Hello what are you doing!!!');
Query OK, 1 row affected (0.47 sec)
mysql> insert into findStringWithGivenPrefixDemo(UserMessage) values('Hi I am learning MongoDB!!!');
Query OK, 1 row affected (0.15 sec)Display all records from the table using select statement.
The query is as follows
mysql> select *from findStringWithGivenPrefixDemo;
The following is the output
+--------+-----------------------------+ | UserId | UserMessage | +--------+-----------------------------+ | 1 | Hi Good Morning !!! | | 2 | Hey I am busy!! | | 3 | Hello what are you doing!!! | | 4 | Hi I am learning MongoDB!!! | +--------+-----------------------------+ 4 rows in set (0.00 sec)
Here is the query to find strings with given prefix
mysql> select *from findStringWithGivenPrefixDemo where UserMessage LIKE 'Hi%';
The following is the output displaying only the strings with prefix “Hi”
+--------+-----------------------------+ | UserId | UserMessage | +--------+-----------------------------+ | 1 | Hi Good Morning !!! | | 4 | Hi i am learning MongoDB!!! | +--------+-----------------------------+ 2 rows in set (0.00 sec)
Updated on: 30-Jul-2019
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