The method of data accumulation selection is determined by the Source’s data format and can be Segmented, Continuous, Continuous with Partition and Permanent. Specifying any of these parameters will determine what routines the system will apply to the source data during the actual download and the pre/post processing.The method of data accumulation selection is determined by the Source’s data format and can be Segmented, Continuous, Continuous with Partition and Permanent. Specifying any of these parameters will determine what routines the system will apply to the source data during the actual download and the pre/post processing.

The following options are listed in the Data Accumulation Mode menu when you press the arrow button.

1. Permanent – This type of data usually refers to control data (reference data, legacy data). Control data does not change very often and does not contain a timestamp.

The parameters for the Permanent data storage are identical to those for the Segmented

2. Segmented – Each data set is identified by the data source name and the date oft he “snap shot” and stored in a separate table. Usually this type of data is transactional data.

If Segmented is selected the following parameters need to be defined.

External Data Table/Data Table Prefix :  This parameter name depends on how the source was marked:
a) External Source – Enter the External table name. This name will be followed by the download date.
b) Internal Source – Enter the Prefix that will be used by the system when naming the table. This prefix will be followed by the download date.

3. Continuous – Each data set is accumulated in a single table along with a timestamp. This type of data usually refers to market data.

4. Continuous_Partition – A variation of a Continuous Data storage type where each data download is partitioned separately within the same table.

If Continuous or Continuous_Partition accumulation mode is selected the following parameters need to be defined.