Oracle String Functions | Different Method of String Functions in Oracle
SQL Functions. SQL functions are built into Oracle Database and are available for use in various appropriate SQL statements. These functions are use full. - ppt download
How to Write a Cross-Connection Query Correctly
Oracle String - javatpoint
String Functions in SQL - sql - sql tutorial - learn sql - By Microsoft Awarded MVP - Learn in 30sec | wikitechy
Oracle Date Functions | Top 17 Oracle Date Functions with Examples