SQL

  Cursor in SQL Server A cursor in SQL Server is a d atabase object that allows us to retrieve each row at a time and manipulate its data . A cursor is nothing more than a pointer to a row. It's always used in conjunction with a SELECT statement. It is usually a collection of  SQL  logic that loops through a predetermined number of rows one by one. A simple illustration of the cursor is when we have an extensive database of worker's records and want to calculate each worker's salary after deducting taxes and leaves. The  SQL Server   cursor's purpose is to update the data row by row, change it, or perform calculations that are not possible when we retrieve all records at once . It's also useful for performing administrative tasks like SQL Server database backups in sequential order. Cursors are mainly used in the development, DBA, and ETL processes. This article explains everything about SQL Server cursor, such as cursor life cycle, why and when the cursor is us...