Slim CI with state comparison in dbt - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is Slim CI in dbt?

Slim CI is a way to run only the changed models in your dbt project during continuous integration, making tests faster and more efficient.

beginner

How does state comparison help in Slim CI?

State comparison checks the difference between the current project and a previous run to identify which models changed, so only those models and their dependencies run.

intermediate

Which dbt command option enables state comparison for Slim CI?

The --state flag is used with dbt commands to specify the path to the previous run's manifest directory for state comparison.

beginner

What is the benefit of using Slim CI with state comparison in a real project?

It saves time and computing resources by running only the models that changed and their dependencies, instead of the whole project.

beginner

What happens if you run dbt without state comparison in CI?

dbt runs all models every time, which can be slow and use more resources, especially for large projects.

What does the --state flag do in dbt?

A Specifies the previous run's manifest for comparison

B Runs all models regardless of changes

C Deletes old models from the database

D Generates documentation for the project

The --state flag tells dbt where to find the previous run's manifest to compare and find changed models.

Why use Slim CI in dbt?

A To deploy models to production automatically

B To run all models every time

C To skip tests during CI

D To run only changed models and speed up CI

Slim CI focuses on running only changed models to make continuous integration faster and more efficient.

What is required for state comparison to work?

A A saved manifest from a previous dbt run

B A full rebuild of all models

C Manual selection of models to run

D Disabling tests in dbt

State comparison needs a previous manifest file to compare the current project state against.

If no models changed, what does Slim CI do?

A Runs all models

B Runs no models

C Runs only tests

D Fails the CI job

If no changes are detected, Slim CI skips running models to save time.

Which of these is a direct benefit of Slim CI?

A More manual work to select models

B More database storage used

C Reduced CI run time

D Increased chance of errors

Slim CI reduces the time it takes to run CI by focusing only on changed models.

Explain how Slim CI with state comparison works in dbt and why it is useful.

Think about how comparing current and past project states helps decide what to run.

Describe the steps to set up Slim CI with state comparison in a dbt project.

Consider what files and flags are needed to compare states.