The LIKE is a logical operator that determines if a character string matches a specified pattern. A pattern may include regular characters and wildcard characters. The LIKE operator is used in the WHERE clause of the SELECT, UPDATE, and DELETE statements to filter rows based on pattern matching.
Here is an example SQL that retrieves data from EMPLOYEE table employee’s name with a string pattern like “Mary%”. If the emp_name is indexed, the following SQL will utilize Index Range Scan of the...
How to Tune SQL with LIKE '%Mary%' Comparison?
Here is an example SQL that retrieves data from EMPLOYEE table employee’s name with a string pattern like “Mary%”. If the emp_name is indexed, the following SQL will utilize Index Range Scan of the...
How to Tune SQL with LIKE '%Mary%' Comparison?