LIKE « Query Select « Oracle PL/SQL Tutorial

2.19.1.Using the LIKE Operator
2.19.2.Underscore character (_) matches one character in a specified position.
2.19.3.Percent character (%) matches any number of characters beginning at the specified position.
2.19.4.ESCAPE option
2.19.5.Combine UPPER and LIKE operator
2.19.6.Subquery with Like operator
2.19.7.Use _ and % together
2.19.8.Use three _ together
2.19.9.Use _ to match a phone number

2.19.10.Second letter is A
2.19.11.Using Pattern Matching LIKE '____ %'
2.19.12.ESCAPE from LIKE