SQL Functions with Examples

SQL functions are pre-written actions that can be called on individual cells, multiple cells in a record, or multiple records.

SQL Server Functions - W3Schools

SQL Server String Functions ; LEN, Returns the length of a string ; LOWER, Converts a string to lower-case ; LTRIM, Removes leading spaces from a string ; NCHAR ...

SQL Server Functions: 29 Examples + Definitions - HubSpot Blog

In this post, we'll explore the most common SQL Server functions, along with examples to help you understand how they work and how to use them in your SQL ...

SQL Functions (Aggregate and Scalar Functions) - GeeksforGeeks

Scalar Functions Examples ... Let's look at some examples of each Scalar Function in SQL. ... Converting names of students from the table Students ...

17: 36.5. Query Language (SQL) Functions - PostgreSQL

Arguments of an SQL function can be referenced in the function body using either names or numbers. Examples of both methods appear below. To use a name, declare ...

Create User-defined Functions (Database Engine) - SQL Server

The following example creates a multi-statement scalar function (scalar UDF) in the AdventureWorks2022 database. The function takes one input ...

Define a function and use it in a SQL-Query - Stack Overflow

Yes, SQL functions are easy to create. But you have to understand the 3 different types of functions in SQL: 1) Scalar functions:

100 SQL functions and statements with brief explanations ... - LinkedIn

Example:MERGE INTO target_table AS target USING source_table AS source ON target.id = source.id WHEN MATCHED THEN UPDATE SET target.column1 = ...

SQL Functions: List, Examples, Types & Procedures - Vaia

SQL functions are essential building blocks in a Structured Query Language (SQL) database system. They are critical in managing and manipulating data stored in ...

SQL Aggregate Functions - W3Schools

SQL Aggregate Functions · MIN() - returns the smallest value within the selected column · MAX() - returns the largest value within the selected column · COUNT() - ...

SQL | String functions - GeeksforGeeks

SQL | String functions · ASCII(): This function is used to find the ASCII value of a character. · CHAR_LENGTH(): Doesn't work for SQL Server.

SQL - String Functions - TutorialsPoint

SQL - String Functions ; 1, ASCII(). Returns numeric value of left-most character ; 2, CHAR(). Returns the character for each integer passed ; 3, CHARINDEX().

CREATE FUNCTION (Transact-SQL) - SQL Server - Microsoft Learn

Creates a user-defined function (UDF), which is a Transact-SQL or common language runtime (CLR) routine. A user-defined function accepts ...

SQL Server Functions - javatpoint

User-Defined Functions · CREATE FUNCTION MULTIVALUED() · RETURNS @Employee TABLE · (id INT, emp_name VARCHAR(50), salary INT) AS · BEGIN · INSERT INTO @Employee ...

Basic and Advanced SQL Functions with Examples

SQL functions are essential tools for data manipulation and analysis. They allow you to perform a wide range of tasks, from simple calculations to complex data ...

Learn SQL: User-Defined Functions - SQLShack

CREATE/ALTER/DROP User-Defined Function ... Whenever you're working with database objects, you'll use these commands – CREATE (new), ALTER ( ...

12 Essential SQL Functions for Data Managers | SnapLogic

Scalar functions can help with this manipulation. For example, a data professional might use the UCASE function to display customer names in ...

Functions In SQL Server: A Beginner's Guide - C# Corner

SQL Server Functions ; Aggregate, COUNT(), Returns the number of rows in a result set. ; SUM(), Calculates the sum of values in a column. ; AVG() ...

SQL Window Functions | Advanced SQL - Mode Analytics

Behind the scenes, the window function is able to access more than just the current row of the query result. The most practical example of this is a running ...

Functions In SQL Explained In Detail - YouTube

This video by Simplicode is based on Functions in SQL. SQL has many Built-in functions like Aggregate functions, Scalar functions, ...