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SQL LIKE, NOT LIKE .

Selection with LIKE, NOT LIKE

LIKE is used in a WHERE statement to find specified pattern in a column. Rows that satisfy the pattern is selected.
LIKE Example:
MySQL, Oracle, SQL server, PostgreSQL:
select customer_id, telephone_type, Telephone_number
   from telephones
   where telephone_number  like '_3%-54' ;
The character, %(percent), has the meaning, any character type and any number of characters
while _(underline) has the meaning any character type at the position it appears!
So this example will list rows with some columns from telephones table where the Telephone_number has the second character as 3 and ends with the three characters -54.
The result should be:
customer_id telephone_type telephone_number
10003 Cell (371) 153-54
10003 Work (371) 143-54
NOT LIKE Example:
MySQL, Oracle, SQL server, PostgreSQL:
select customer_id, telephone_type, Telephone_number
   from telephones
   where telephone_number  not like '-54' and telephone_type='Home' ;
This example will list rows with some columns from telephones table where the Telephone_number not ends with the three characters -54 and telephone is 'Home' type.
The result should be:
customer_id telephone_type telephone_number
10001 Home (978) 667-94
10002 Home (679) 234-94
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