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How Many Categories Of Data Types?

Answer»

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.

PL/SQL data types are grouped into 4 categories:


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