Virtually every application development language has some concept of subprograms. Typically they are called “procedures,” “functions,” “routines,” or “sections,” but they all are indicative of a logical or modular grouping of code segments within a program. Similarly, PL/SQL, which is a derivative of Ada, also has the concept of subprograms, but the package mechanism is a wonderful extension to this model, as we will demonstrate in this chapter.
KeywordsPackage Specification Global Variable Chunk Size Package Body Private Variable
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