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MySQL query to find a list of city names that do not start with vowels?
You can use DISTINCT with RLIKE operator to find a list of city names that do not start with vowels.
The syntax is as follows −
SELECT DISTINCT yourCityColumnName FROM yourTableName WHERE yourCityColumnName NOT RLIKE ‘ ^[AEIOUaeiou].*$’;
To understand the above syntax, let us create a table. Here, we have a column for city names.
The query to create a table is as follows −
mysql> create table Employee_Information -> ( -> Id int NOT NULL AUTO_INCREMENT, -> EmployeeName varchar(20), -> CityName varchar(20), -> PRIMARY KEY(Id) -> ); Query OK, 0 rows affected (0.76 sec)
Insert some records in the table using INSERT command. The query is as follows −
mysql> insert into Employee_Information(EmployeeName,CityName) values('Larry','New York');
Query OK, 1 row affected (0.12 sec)
mysql> insert into Employee_Information(EmployeeName,CityName) values('Sam','Indianapolis');
Query OK, 1 row affected (0.15 sec)
mysql> insert into Employee_Information(EmployeeName,CityName) values('Carol','El Paso');
Query OK, 1 row affected (0.16 sec)
mysql> insert into Employee_Information(EmployeeName,CityName) values('John','Austin');
Query OK, 1 row affected (0.07 sec)
mysql> insert into Employee_Information(EmployeeName,CityName) values('Mike','Denver');
Query OK, 1 row affected (0.06 sec)
mysql> insert into Employee_Information(EmployeeName,CityName) values('David','Las Vegas');
Query OK, 1 row affected (0.11 sec)
mysql> insert into Employee_Information(EmployeeName,CityName) values('James','Albuquerque');
Query OK, 1 row affected (0.13 sec)
mysql> insert into Employee_Information(EmployeeName,CityName) values('Robert','Portland');
Query OK, 1 row affected (0.28 sec)
mysql> insert into Employee_Information(EmployeeName,CityName) values('Richard','Irvine');
Query OK, 1 row affected (0.10 sec)
mysql> insert into Employee_Information(EmployeeName,CityName) values('Michael',' Garland');
Query OK, 1 row affected (0.13 sec)Display all records from the table using select statement. The query is as follows −
mysql> select *from Employee_Information;
The following is the output −
+----+--------------+--------------+ | Id | EmployeeName | CityName | +----+--------------+--------------+ | 1 | Larry | New York | | 2 | Sam | Indianapolis | | 3 | Carol | El Paso | | 4 | John | Austin | | 5 | Mike | Denver | | 6 | David | Las Vegas | | 7 | James | Albuquerque | | 8 | Robert | Portland | | 9 | Richard | Irvine | | 10 | Michael | Garland | +----+--------------+--------------+ 10 rows in set (0.00 sec)
Here is the query to find a list of city names that do not start with vowel. This means first letter of city name must not start with A,E,I,O,U or a,e,i,o,u −
mysql> SELECT DISTINCT CityName FROM Employee_Information -> WHERE CityName NOT RLIKE '^[AEIOUaeiou].*$';
The following is the output −
+-----------+ | CityName | +-----------+ | New York | | Denver | | Las Vegas | | Portland | | Garland | +-----------+ 5 rows in set (0.00 sec)
Updated on: 30-Jun-2020
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