6Using Single-Row Functions to Customize Output
6.01 Describe Various Types of Functions That Are Available in SQL
6.02 Use Character, Number, and Date Functions in SELECT Statements
6.03 Describe the Use of Conversion Functions
6.04 Manage Data in Different Time Zones—Use Various Datetime Functions
Q&A Self Test
This chapter looks at the topic of SQL functions. Functions perform unique tasks that boost the capabilities of SQL. There are many SQL functions, and it is important that the certified Oracle Database SQL Expert be familiar with them all, and understand when they will be relevant for use in a ...