Informatica中的数字数据类型将数字转换为指数形式

Question

My problem is that informatica mapping is converting a number of the form 8000196005072015 to the form 8.000196005072015e+15.The precession of the number datatype for this field is set at 50 and its scale is set to 0. How can I prevent this from happening without trimming the data(8000196005072015).

Thanks

Answer 1

There is an important difference between the decimal and double datatypes in PowerCenter:

• decimal – a fixed-point representation of real numbers,
• double – a floating-point representation of real numbers.

However, defining a decimal port does not automatically mean the Integration Service will treat values passing though this port as fixed-point numbers.

Port datatype | Precision |  High Precision
              |           |   Off  |   On
---------------------------------------------
decimal       |   0-28    | double | decimal
decimal       |  over 28  | double | double

To actually work with decimal values the following conditions have to be met:

1. the datatype of the port is decimal and
2. the precision of the port is 28 or less and
3. the session option Enable high precision is enabled.