Oracle - Categories of Data Types in PL/SQL in Oracle

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Categories of Data Types in PL/SQL in Oracle

Q

How Many Categories of Data Types in Oracle?

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A

PL/SQL data types are grouped into 4 categories:

Scalar Data Types: A scalar data type holds a single value.
Composite Data Types: A composite data type has internal components, such as the elements of an array.
LOB Data Types: A LOB data type holds a lob locator that specify the location of a large object.
Reference Data Types: A reference data type holds a pointer that points to another data object.

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