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Oracle Tutorials - Convert Character Types to Numeric Types
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How To Convert Character Types to Numeric Types?
You can convert character types to numeric types in two ways:
- Explicitly by using TO_NUMBER() function.
- Implicitly by putting character data in a numeric operation.
The sample script below shows you how to convert character types to numeric types:
PROCEDURE proc_convert_1 AS
start_time := '12052';
finish_time := '15314';
elapsed_time := TO_NUMBER(finish_time)
elapsed_time := finish_time - start_time; -- same as above
(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?