面试题与答案

IBM DataStage is an ETL (Extract, Transform, Load) tool used for designing, developing, and running jobs that move and transform data.

Example:

In DataStage, you can create a job to extract data from a source, transform it, and load it into a target database.

A DataStage job parameter is a variable that can be passed to a job at runtime. It allows for dynamic configuration and makes jobs more flexible and reusable.

Example:

You can use a job parameter to specify the input file path, allowing the same job to process different files without modification.