You map custom source datatypes to a corresponding archive datatype from the
Data Type Mapping for Data Vault
page.
Access the
Data Type Mapping for Data Vault
from the
Administration
Data Type Mappings for Data Vault
menu.
The following image shows the layout of the
Data Type Mapping for Data Vault
page:
List of datatypes. Each datatype in the Source section maps to a corresponding data type in the Data Vault section.
Filter fields. Enter text or select an option from the drop-down list in one or more fields. Click the filter icon to display the datatypes.
Page controls. Set the number of rows to display on a page. Click the arrows to scroll through the list.
Clear filter icon. Click this icon to clear any filter settings.
Filter icon. After you specify filter criteria in the fields above the column names, click the filter icon to display the datatypes.
The list of datatypes in the Source section has the following columns:
Connection Type
Connection to the source database. Source connections are listed in the drop-down list.
Data Type
The name of the source datatype. Datatypes can be custom or native.
Operator
Specifies if the length of the source data is equal, greater-than, or less-than the number in the
Length
column.
Length
The maximum number of characters or digits in a value.
Precision, Scale
Precision is the maximum number of digits in a value. Scale is the number of digits after the decimal number.
The list of datatypes in the Data Vault section has the following columns:
Data Type
The name of the archive datatype. One or more source datatypes can map to one archive datatype.
Defined By
Specifies if the datatype map was created by the system or the user. Native datatypes mapped during the Data Vault Loader job are listed as system. Custom datatypes that you map are listed as user.
Length Multiplier
You can increase the field length in the Data Vault to a multiple of the field length in the source datatype. For example, if the maximum length of a source field is 25 characters, you can increase the length of this field in Data Vault to 50 by multiplying the source length by 2.
Length
The maximum number of characters or digits in a value.
Precision, Scale
Precision is the maximum number of digits in a value. Scale is the number of digits after the decimal number.