This chapter covers one of the more interesting features of PL/SQL programming—collections. We discussed and learned the three types of collections in PL/SQL that is associative arrays, nested tables and varrays
. Readers should understand the application of these collection types in different situations. The comparative study of all three would help readers to differentiate between each one and choose the most appropriate one in their development.
The next chapter will explore another distinctive capacity of PL/SQL as a language, that is in the use of external procedures.