your function is basicaly SUM two or more numbers or variables. For example: You need to know a result from 10 + 3 = 13 in SQL: SELECT SUM(10+3) Cleary that's is a simple exemplification ...

Such functions are mainly required for sorting the data, for example ... SQL is essential in order to conduct effective analysis of data and preparation of the reports. The simple grouping functions ...

This function converts an expression of one data type to another. Is also an ANSI SQL function, so it can be used in different ... This function also calculates the sum of all values, but as a running ...

Window functions in SQL are a powerful feature that allows you to perform calculations ... Window Functions: Commonly used window functions include: > SUM, AVG, COUNT: Calculate the sum, average, or ...