Learn how to reuse SQL logic and code in your database development projects, using functions, stored procedures, views, CTEs, and variables.

RewriteExceptAll is a catalyst/Rule.md[Catalyst rule] for transforming spark-sql-LogicalPlan.md[logical plans] (i.e. Rule[LogicalPlan ...

SQL functions provide powerful tools for handling conditional logic within SQL queries, allowing you to customize query results based on specific conditions and requirements.