Nityo Infotech Data Engineer Interview Questions, Process, and Tips

Debugging packages in SSIS involves using breakpoints, data viewers, logging, and error outputs.

• Set breakpoints in control flow tasks to pause package execution for inspection.

• Use data viewers to see data at various points in the package.

• Enable logging to capture detailed information about package execution.

• Redirect error outputs to handle and troubleshoot errors effectively.

SCD implementation in SSIS involves using Slowly Changing Dimension transformations to handle changing data in data warehouse.

• Use Slowly Changing Dimension (SCD) transformations in SSIS to handle changing data in data warehouse

• Identify Type 1, Type 2, or Type 3 changes and implement appropriate SCD logic

• Utilize Lookup and Conditional Split components to compare incoming data with existing data and determine the type of...read more

Different types of transformations in data engineering

• Extract: Selecting specific columns from a dataset

• Filter: Removing rows that do not meet certain criteria

• Join: Combining two or more datasets based on a common key

• Aggregate: Grouping data and performing calculations on groups

• Normalize: Restructuring data into a standardized format

Containers in SSIS are used to group related tasks and provide a way to manage the flow of data and control the execution of tasks.

• Containers help in organizing and managing tasks in SSIS packages.

• There are different types of containers in SSIS such as Sequence Container, For Loop Container, Foreach Loop Container, and Task Host Container.

• Sequence Container is used to group tasks and define the order of execution.

• For L...read more