Copy stage in DataStage
The Copy stage copies a single input data set to a number of output data sets.
Each record of the input data set is copied to every output data set. Records can be copied without modification or you can drop or change the order of columns. To copy with more modification, such as changing column data types, use the Modify stage in DataStage. Copy lets you make a backup copy of a data set on disk while performing an operation on another copy. It is a processing stage.
Where you are using a Copy stage with a single input and a single output, you should ensure that you set the Force property in the stage editor TRUE. This prevents IBM® DataStage® from deciding that the Copy operation is superfluous and optimizing it out of the job.
Input tab
The Stage tab allows you to specify an optional description of the link. The Columns section specifies the column definitions of incoming data. The Advanced section allows you to change the default buffering settings for the input link.
Output tab
The Output tab allows you to specify details about data output from the Copy stage. The stage can have any number of output links, choose the one you want to work on from the Output name drop down list.
The Stage tab allows you to specify an optional description of the output link. The Columns section specifies the column definitions of the data. To map columns, click Edit in the columns section and specify the relationship between the columns being input to the Copy stage and the output columns by editing the Maps from input column column. The Advanced section allows you to change the default buffering settings for the output links.