CERTIFICATION OBJECTIVES
4.01 Describe Various Types of Functions Available in SQL
4.02 Use Character, Number, and Date Functions in SELECT Statements
Two-Minute DrillQ&A Self Test
Functions are a wonderful extension to SQL and provide a first glimpse of the procedural capabilities Oracle supports. Procedural languages allow a rich degree of programming that yields an almost unlimited range of data manipulation possibilities. Oracle server implements a proprietary procedural language called PL/SQL, or procedural SQL. A range of ...
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