Below are the list of numeric data types and their sub types-
- PLS_INTEGER
This is the signed integer in the range of -2,147,483,648 to 2,147,483,647 that are represented in 32 bits.
- BINARY_INTEGER
This is also signed integer in the range of -2,147,483,648 to 2,147,483,647 that are represented in 32 bits.
- BINARY_FLOAT
This is the single precision IEEE 754- format floating-point number.
- BINARY_DOUBLE
This is the double precision IEEE 754- format floating-point number.
- NUMBER (prec, scale)
It is said to be a fixed point or floating-point number which has an absolute value in the range 1E-130 to (but not including) 1.0E126. This number value can also be represented as 0.
- DEC (prec, scale)
This is ANSI specific fixed-point type with the maximum precision of 38 decimal digits.
- DECIMAL (prec, scale)
This is known to be an IBM specific fixed-point type with the maximum precision of 38 decimal digits.
- NUMERIC (pre, secale)
This is the floating type with the maximum precision of 38 decimal digits.
- DOUBLE PRECISION
This is also known to be an ANSI specific floating-point type with maximum precision of 126 binary digits (approximately 38 decimal digits).
- FLOAT
FLOAT is known as both ANSI and IBM specific floating-point type that is having maximum precision of 126 binary digits. That can be approximately 38 decimal digits.
- INT
It is an ANSI specific integer type that has a maximum precision of 38 decimal digits.
- INTEGER
This data type is also both ANSI and also IBM specific integer type with maximum precision of 38 decimal digits.
- SMALLINT
It is an ANSI and also IBM specific integer type with the maximum precision of 38 decimal digits.
- REAL
It is the floating-point type with the maximum precision of 63 binary digits and then approximately 18 decimal digits.
The given below syntax is the valid declaration:
DECLARE
num 1 INTEGER;
num 2 REAL;
num 3 DOUBLE PRECISION;
BEGIN
null;
END;
/When we execute the above code is compiled and executed, we get following result:
PL/SQL procedure successfully completed.
