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MySQL query to find all rows where string contains less than four characters?
Use CHAR_LENGTH() and find the count of characters in every string and then get the strings which are less than four characters. Let us first create a table −
mysql> create table DemoTable -> ( -> Name varchar(100) -> ); Query OK, 0 rows affected (1.38 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable values('John');
Query OK, 1 row affected (0.19 sec)
mysql> insert into DemoTable values('Bob');
Query OK, 1 row affected (1.60 sec)
mysql> insert into DemoTable values('Carol');
Query OK, 1 row affected (0.25 sec)
mysql> insert into DemoTable values('David');
Query OK, 1 row affected (1.83 sec)
mysql> insert into DemoTable values('Sam');
Query OK, 1 row affected (0.32 sec)Display all records from the table using select statement −
mysql> select *from DemoTable;
This will produce the following output −
+-------+ | Name | +-------+ | John | | Bob | | Carol | | David | | Sam | +-------+ 5 rows in set (0.00 sec)
Following is the query to find all rows where string contains less than four characters −
mysql> select *from DemoTable where CHAR_LENGTH(Name) < 4;
This will produce the following output −
+------+ | Name | +------+ | Bob | | Sam | +------+ 2 rows in set (0.00 sec)
Updated on: 30-Jul-2019
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