Here are the main differences in VARCHAR between SQL Server and PostgreSQL: In SQL Server, the 'N' in N'...' represents 'National Character Set' and is used to identify Unicode strings. The core ...

SQL-Server-Functions-Categorized Aggregate Functions: Usage of COUNT and DISTINCT This example returns the number of titles an Adventure Works Cycles employee can hold.

SQL is a tool that is widely used in the manipulation of data and featuring in the relational database. They are applied in querying, manipulating as well as reporting data and it is commonly used by ...

When you need to count cells with numbers that meet certain criteria, or those that are blank, use the COUNT functions in Microsoft Excel.

SQL window functions provide extremely powerful and useful features that let you work with observations more easily. Different types explained here.

COUNTA function with multiple criteria counts how many arguments are in the list of arguments. Learn how to use COUNTA function in Excel.