Master programming syntax, solve interactive challenges & run live code in Syntaxis Explore Arena →
menu_book Course Curriculum (T-SQL) expand_more
Query Basics
TOP TOP WITH TIES OFFSET FETCH IIF CHOOSE CONCAT STRING_AGG STRING_SPLIT TRY_CAST TRY_CONVERT
Variables & Flow
DECLARE variable SET variable SELECT assignment IF ELSE WHILE BREAK CONTINUE BEGIN END GOTO label RETURN code
Data Changes
OUTPUT clause UPDATE FROM DELETE FROM join MERGE IDENTITY insert SCOPE_IDENTITY SEQUENCE Table value constructor SELECT INTO TRUNCATE TABLE
Transactions & Errors
BEGIN TRANSACTION COMMIT TRANSACTION ROLLBACK TRANSACTION SAVE TRANSACTION @@TRANCOUNT XACT_STATE TRY CATCH THROW RAISERROR SET XACT_ABORT
Stored Programming
CREATE PROCEDURE Procedure parameters OUTPUT parameter CREATE FUNCTION Scalar UDF Inline table-valued function Multi-statement TVF EXECUTE procedure sp_executesql Dynamic parameterization
Window & Analytics
ROW_NUMBER RANK DENSE_RANK NTILE LAG LEAD FIRST_VALUE LAST_VALUE PERCENT_RANK Running aggregate
Temporary Data
Local temp table Global temp table Table variable CTE Recursive CTE CROSS APPLY OUTER APPLY PIVOT UNPIVOT VALUES table constructor
SQL Server Features
Computed column Filtered index Included columns index Temporal table JSON_VALUE OPENJSON FOR JSON PATH XML nodes TRY_PARSE SESSION_CONTEXT
T-SQL / Stored Programming

Inline table-valued function

Learn Inline table-valued function in T-SQL through a focused explanation, a dedicated construct-specific example, an engineering boundary, and a mastery check.

10 min read • Intermediate

Inline table-valued function is an atomic T-SQL topic inside Stored Programming. This lesson focuses on how the Inline table-valued function construct is written, what it changes, and when it is the right tool.

Trace the example line by line. Identify the exact syntax for Inline table-valued function, the input state before it runs, and the resulting value, control flow, database state, hardware behavior, or runtime effect afterward. Neighboring lessons use different constructs rather than renamed copies of this one.

Topic-specific example

tsql-05-06-inline-table-valued-function.sql
tsql Try It Live 
CREATE OR ALTER FUNCTION dbo.OrdersFor(@CustomerId int) RETURNS TABLE AS RETURN (SELECT * FROM Orders WHERE customer_id=@CustomerId);
Edge case / engineering note

For Inline table-valued function, test the boundary that belongs to this exact feature rather than a generic failure case. Check invalid or empty input, NULL/unknown state, numeric limits, transaction or exception behavior, synthesis/runtime constraints, ownership/permission rules, or backtracking/control-flow effects where they apply.

Content source & attribution
Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

Inline table-valued function Mastery Check →
← PREVIOUS
Scalar UDF
NEXT →
Multi-statement TVF