LIKE

Description

The LIKE operator is used in a WHERE clause to search for a specified pattern in a column.

There are two wildcards often used in conjunction with the LIKE operator:

The percent sign (%) represents zero, one, or multiple characters
The underscore sign (_) represents one, single character

Syntax

1. > SELECT column1, column2, ...
2. FROM table_name
3. WHERE columnN LIKE pattern;

Examples

1. > SELECT * FROM Customers
2. WHERE CustomerName LIKE 'a%'; //The following SQL statement selects all customers with a CustomerName starting with "a"

4. > SELECT * FROM Customers
5. WHERE CustomerName LIKE '%a'; //The following SQL statement selects all customers with a CustomerName ending with "a"

7. > SELECT * FROM Customers
8. WHERE CustomerName LIKE '%or%'; //The following SQL statement selects all customers with a CustomerName that have "or" in any position

10. > SELECT * FROM Customers
11. WHERE CustomerName LIKE '_r%'; //The following SQL statement selects all customers with a CustomerName that have "r" in the second position

13. > SELECT * FROM Customers
14. WHERE CustomerName LIKE 'a__%'; //The following SQL statement selects all customers with a CustomerName that starts with "a" and are at least 3 characters in length

16. > SELECT * FROM Customers
17. WHERE ContactName LIKE 'a%o'; //The following SQL statement selects all customers with a ContactName that starts with "a" and ends with "o"

19. > SELECT * FROM Customers
20. WHERE CustomerName NOT LIKE 'a%'; //The following SQL statement selects all customers with a CustomerName that does NOT start with "a"

Constraints

NOT LIKE is not supported for now.