Documentation category

Existing SQL

Explain, inspect, update, optimize, and check SQL you already have.

Upload Existing SQL

Upload a SQL or text file into the Imported SQL workspace for explanation and review.

Paste a query directly into the Imported SQL workspace without creating a file.

Use Plain-English walkthrough to summarize a query and explain its data flow, joins, filters, calculations, outputs, and watch-outs.

Break an existing query into tables, columns, and relationships, then update its output structure.

List the result columns returned by an existing query and trace each one to its source.

Remove a field from the final result while retaining columns that the query still needs internally.

Use Add from Database to introduce reviewed metadata for another table into an existing SQL query.

Use Performance tune-up to receive a rewritten query with inline explanations of suggested improvements.

Use Query checkup to identify syntax, reference, join, logic, or performance concerns in existing SQL.