Tips for using User-Defined Functions in SQL Server 2019 Try to use Scalar UDF Inlining feature. SQL Server 2019 supports Scalar UDF Inlining. This feature automatically transforms scalar UDFs into relational expressions and embeds them in the calling SQL query. This transformation improves the performance of workloads that take advantage of scalar UDFs. A Scalar UDF can be inline when...
Tag: udf
Tips for using User-Defined Functions in SQL Server 2017
Tips for using User-Defined Functions in SQL Server 2017 Consider using user-defined table type as a parameter for user-defined function. SQL Server 2017 supports a user-defined table type that supports representing table structures for use as parameters in user-defined function. Using UDF type can simplify user-defined function’s programming and may increase UDF performance. Use TRY-CATCH logic to trap and handle...
Some tips for using User-Defined Functions in SQL Server 2016
Some tips for using User-Defined Functions in SQL Server 2016 Use scalar user-defined functions when you need to do the same mathematical calculations at multiple places in code. For example, if you need to calculate the factorial for the given number, you can write appropriate scalar user-defined function to encapsulate code for reuse. Consider using CLR user-defined functions. The CLR […]
User-defined functions (UDFs) – Part-2
User-defined functions (UDFs) – Part-2 Author: Basit A. Farooq Editor’s Note: In this second of the two part article series, you’ll about creating and using in-line table functions, and multi-statement table functions. You used CREATE FUNCTION, ALTER FUNCTION, DROP FUNCTION, and SQL Server Management Studio to create and manage functions. You learned about a related object, CLR aggregates. Creating a […]
Tips for using User-Defined Functions in SQL Server 2014
Tips for using User-Defined Functions in SQL Server 2014 Try to avoid using nested user-defined functions. Because using nested user-defined functions can result in some performance degradation, try to break down a nested function into simpler functions. Consider using CLR user-defined functions. The CLR user-defined functions were first introduced in SQL Server 2005. You can write the user-defined functions in...
Tips for using SQL Server 2012 User-Defined Functions
Tips for using SQL Server 2012 User-Defined Functions If you want to invoke a stored procedure directly from a query and this stored procedure returns a scalar value, consider replacing a stored procedure with a scalar user-defined function. A stored procedure cannot be invoked from the SELECT statement, but if you need to invoke some code inside the query, try...
Troubleshooting problems with user-defined functions in SQL Server 2008 R2
Troubleshooting problems with user-defined functions in SQL Server 2008 R2 If you have problems with user-defined functions (UDF) in SQL Server 2008 R2, review this troubleshooting checklist to find potential solutions. 1. Install the latest SQL Server 2008 R2 service pack. Because many SQL Server 2008 R2 UDF bugs were fixed in SQL Server service packs, you should install the...
Troubleshooting problems with CLR in SQL Server 2008 R2
Troubleshooting problems with CLR in SQL Server 2008 R2 If you have problems with Common Language Runtime (CLR) in SQL Server 2008 R2, review this troubleshooting checklist to find potential solutions. 1. Install the latest SQL Server 2008 R2 service pack. Because many SQL Server 2008 R2 CLR bugs were fixed in SQL Server service packs, you should install the...