Oracle® PL/SQL® Interactive Workbook, Second Edition By Benjamin Rosenzweig, Elena Silvestrova
Table of Contents
Chapter Objectives
In this Chapter, you will learn about:
Using Parameters with Cursors and FOR UPDATE Cursors
Cursor Variables
In the previous chapter you mastered the basic concepts of cursors. In this chapter you will learn how to dynamically alter the WHERE clause of a cursor by passing parameters to when you call the cursor. You will also learn about cursor variables. Cursor variables are like C pointers; they hold the address or memory location of an object of some type. Cursor variables are very useful for passing query result sets between PL/SQL stored subprograms and various clients. Neither PL/SQL nor any of its clients owns a result set. They simply share a pointer to the query work area that identifies the result set.
