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Oracle Tutorials - Categories of Data Types in PL/SQL
(Continued from previous topic...)
How Many Categories of Data Types?
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.
(Continued on next topic...)
- Is PL/SQL Language Case Sensitive?
- How To Enter Comments in PL/SQL?
- What Are the Types of PL/SQL Code Blocks?
- What Is an Anonymous Block?
- What Is a Named Program Unit?
- What Is a Procedure?
- What Is a Function?
- How To Declare a Local Variable?
- How To Initialize Variables with Default Values?
- How To Assign Values to Variables?
- What Are the Arithmetic Operations?
- What Are the Numeric Comparison Operations?
- What Are the Logical Operations?
- How Many Categories of Data Types?
- How Many Scalar Data Types Are Supported in PL/SQL?
- How To Convert Character Types to Numeric Types?
- What Are the Execution Control Statements?
- How To Use "IF" Statements on Multiple Conditions?
- How To Use "WHILE" Loop Statements?
- How To Use "FOR" Loop Statements?
- What Is NULL in PL/SQL?
- How To Test NULL Values?