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      • A table-valued function (TVF) is a function that returns a relation or a set of rows. There are two types of TVFs in Spark SQL: a TVF that can be specified in a FROM clause, e.g. range; a TVF that can be specified in SELECT/LATERAL VIEW clauses, e.g. explode.

      Table-valued Functions (TVF) - Spark 3.5.3 Documentation

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  3. spark.apache.org › docs › latestTable-valued Functions (TVF) - Spark 3.5.3 Documentation

    A table-valued function (TVF) is a function that returns a relation or a set of rows. There are two types of TVFs in Spark SQL: a TVF that can be specified in a FROM clause, e.g. range;

    • Functions

      Functions. Spark SQL provides two function features to meet...

    • Select

      Table-value function; Inline table [ LATERAL] ( Subquery )...

    • SQL Syntax

      SQL Syntax. Spark SQL is Apache Spark’s module for working...

  4. stackoverflow.com › questions › 34754663Difference between scalar, table-valued, and aggregate ...

    Jan 13, 2016 · A scalar function returns a single value. It might not even be related to tables in your database. A tabled-valued function returns your specified columns for rows in your table meeting your selection criteria. An aggregate-valued function returns a calculation across the rows of a table -- for example summing values.

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  6. books.japila.pl › spark-sql-internals › table-valuedTable-Valued Functions - The Internals of Spark SQL

    Table-Valued Functions (TFVs) are functions that return a table (as a LogicalPlan) that can be used anywhere that a regular (scalar) table is allowed. Table functions behave similarly to views, but, as functions in general, table functions accept parameters.

  7. www.sqlservertutorial.net › sql-server-user-definedSQL Server Table-Valued Function By Practical Examples

    What is a table-valued function in SQL Server. A table-valued function is a user-defined function that returns data of a table type. The return type of a table-valued function is a table, therefore, you can use the table-valued function just like you would use a table.

  8. www.sqltutorial.net › sql-table-valued-functionsSQL Table-Valued functions - SQL Tutorial

    SQL Table-Valued Function (TVF) is a user-defined function that returns a table as a result set. Unlike scalar functions that return a single value, a TVF can be used to encapsulate a complex logic that generates and returns a table of data.

  9. techcommunity.microsoft.com › t5 › sql-serverQuery Performance and multi-statement table valued functions

    Jan 15, 2019 · First, there are two type of table valued functions which are inline table valued function (Inline TVF) and multi-statement table valued function (multi-statement TVF). Inline table valued function refers to a TVF where the function body just contains one line of select statement. There is not return variable.

  10. database.guide › what-is-a-table-valued-functionWhat is a Table-Valued Function in SQL Server? - Database.Guide

    Example 1 – Inline Table-Valued Function. Here’s an example of the T-SQL code used to create an inline table-valued function. CREATE FUNCTION dbo.udf_CatsByName_ITVF( @CatName varchar(70) ) RETURNS TABLE. AS. RETURN ( SELECT . CatId, CatName, Phone. FROM dbo.Cats. WHERE CatName = @CatName. ); GO.