|
Data type
|
Size
|
Precision
|
Scale
|
Length
|
Display Size
|
|---|---|---|---|---|---|
|
TINYINT
|
[-128, 255]
|
3
|
0
|
1 (bytes)
|
4 (signed) 3 (unsigned)
|
|
SMALLINT
|
[-32768, 65535]
|
5
|
0
|
2 (bytes)
|
6 (signed) 5 (unsigned)
|
|
INTEGER INT
|
[-231, 231- 1]
|
10
|
0
|
4 (bytes)
|
11 (signed) 10 (unsigned)
|
|
BIGINT
|
[-263, 263- 1]
|
19
|
0
|
8 (bytes)
|
20 (signed)
|
|
REAL
|
Positive numbers:
1.175494351e-38 to
1.7014117e+38
Negative numbers:
-1.7014117e+38 to
-1.175494351e-38
You can also use value zero (0) with this data type.
|
7
|
N/A
|
4 (bytes)
|
13
|
|
FLOAT
|
Positive numbers:
2.2250738585072014e-308 -
8.98846567431157854e+307
Negative numbers:
-8.98846567431157854e+307 to
-2.2250738585072014e-308
You can also use value zero (0) with this data type.
|
15
|
N/A
|
8 (bytes)
|
22
|
|
DOUBLE PRECISION
|
Positive numbers:
2.2250738585072014e-308 -
8.98846567431157854e+307
Negative numbers:
-8.98846567431157854e+307 to
-2.2250738585072014e-308
You can also use value zero (0) with this data type.
|
15
|
N/A
|
8 (bytes)
|
22
|
|
DECIMAL1
|
±1.0e254
|
DEFPREC Max 52 Default 52
|
DEFSCALE1
Default 0
|
2-27 (bytes)
|
Variable
|
|
NUMERIC2
|
±1.0e254
|
DEFPREC Max 52 Default 52
|
DEFSCALE2
Default 2 or 0
|
2-27 (bytes)
|
Variable
|
|
Note [1] The default value of scale (DEFSCALE) for the DECIMAL data type depends on whether precision (DEFPREC) is specified:
If precision is not specified, the DECIMAL values are represented as (exact) decimal floating point numbers of precision 52 and range ±1.0e254.
If precision is specified, the default scale is 0.
Also, the precision of DECIMAL is always 52. The maximum value is 52.
DECIMAL = DECIMAL(52,floating point) DECIMAL(prec) = DECIMAL(52,0) DECIMAL(prec,scale) = DECIMAL(52,scale)
The default value of scale (DEFSCALE) for the NUMERIC data type depends on whether precision (DEFPREC) is specified: If precision is not specified, the default scale is 2.
If precision is specified, the default scale) is 0.
NUMERIC = NUMERIC(52,2) NUMERIC(prec) = NUMERIC(prec,0) NUMERIC(prec,scale) = NUMERIC(prec,scale)
|
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