Wednesday, March 10, 2010

NUMBER data type in oracle PL SQL

The NUMBER data type is used in PL sql stored programs.It's used to store fixed point or floating point numbers.

The Syntax is as follows:

NUMBER(precision,scale)

where precision is the total number of digits and scale is the number of digits to the right of decimal point.

The maximum precision of a number is 38 digits. If the precision is not mentioned it defaults to 38.

The scale ranges from -84 to 127.  The scale determines the rounding of decimal digits.


More information can be found in the following link:

http://download.oracle.com/docs/cd/B10500_01/appdev.920/a96624/03_types.htm

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