How To Use Cursors And While Loop In SQL Server.
How to write cursors Hello everyone, i have created this function in which i simply want to display a column values through a cursor, but unfortunately i am not getting the column values, this function is showing me simple column name but not the fields in column.
You would use a CURSOR FOR LOOP when you want to fetch and process every record in a cursor. The CURSOR FOR LOOP will terminate when all of the records in the cursor have been fetched.
This blog briefs about using a simple cursor in SQL Server to insert records. This is not a real world complex example; however it will help you to understand to use cursor for inserting records.
Using Cursor in a Stored Procedure. As the name of this article suggests, we will see a better alternative (in my view) to solve this problem: using cursor in a Stored Procedure.
Unlike simple explicit cursor, parameterized cursors accept values as parameter. You specify the list of parameters separated by comma (,) while declaring the cursor and supply the corresponding argument for each parameter in the list while opening the cursor.
Insert mode in which entered text is inserted into the file. In the command mode, every character typed is a command that does something to the text file being edited; a character typed in the command mode may even cause the vi editor to enter the insert mode.
We will also have a faster operating SQL script by avoiding cursors which are slow in themselves. Cursor Alternative 2: Using User Defined Functions. Cursors are sometimes used to perform a calculation on values that come from each row in its rowset. This scenario can also be achieved by replacing a Cursor with a User Defined Function.