![]() Suppose we might have a complex computation that appears in a number of queries. ![]() The scalar functions are useful in the simplification of our code. Scalar function in SQL Server always accepts parameters, either single or multiple and returns a single value. Here are the descriptions of these UDF functions. SQL Server categorizes the user-defined functions mainly into two types: They also improve query readability and functionality, as well as allow other users to replicate the same procedures. The user-defined functions make the code needed to query data a lot easier to write. These functions help us to simplify our development by encapsulating complex business logic and making it available for reuse anywhere based on the needs. The UDF functions accept parameters, perform actions, and returns the result. The following picture shows all the built-in database functions used in the SQL Server: User-Defined Functionsįunctions that are created by the user in the system database or a user-defined database are known as user-defined functions.
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