Answer
UDFs return calculated values based on parameters. Used for reusable logic, validation, and transformations.
Quick Answer
UDFs are reusable functions you define in T-SQL. Scalar functions return one value. Inline table-valued functions return a table (like a parameterized view). Multi-statement TVFs build a table row by row. Scalar UDFs are handy but can tank performance when called per row in large queries.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
Want to bookmark, take notes, or join discussions?
Sign in to access all features and personalize your learning experience.
Source: SugharaIQ