When flat file has leading and trailing lines that are not part of the table, we can use the filter in the flat file stage to remove them. As an example, the file below has a leading and trailing lines. We want remove them with the flat file stage. Output Steps …

DataStage has three processing stages that can join tables based on the values of key columns: Lookup, Join and Merge. In this post, we discuss when to choose which stage, the difference between these stages, and development references when we use those stages. Use the Lookup stage when: Having a …