Transact-SQL Syntax ConventionsThis returns the number of qualifying rows currently in the last cursor opened on the connection. To improve performance, SQL Server can populate large keyset and static cursors asynchronously. @@CURSOR_ROWS can be called to determine that the number of the rows that qualify for a cursor are retrieved at the time of the @@CURSOR_ROWS call.
Transact-SQL Syntax Conventions
@@CURSOR_ROWS integer
| Return value | Description |
|---|---|
| -m | The cursor populates asynchronously. The value returned (-m) is the number of rows currently in the keyset. |
| -1 | The cursor is dynamic. Because dynamic cursors reflect all changes, the number of rows that qualify for the cursor constantly changes. The cursor does not necessarily retrieve all qualified rows. |
| 0 | No cursors have been opened, no rows qualified for the last opened cursor, or the last-opened cursor is closed or deallocated. |
| n | The cursor is fully populated. The value returned (n) is the total number of rows in the cursor. |
@@CURSOR_ROWS returns a negative number if the last cursor opened asynchronously. Keyset-driver or static cursors open asynchronously if the value for sp_configure cursor threshold exceeds 0, and the number of rows in the cursor result set exceeds the cursor threshold.
This example first declares a cursor, and then uses SELECT to display the value of @@CURSOR_ROWS. The setting has a value of 0 before the cursor opens and then has a value of -1, to indicate that the cursor keyset populates asynchronously.
USE AdventureWorks2012;
GO
SELECT @@CURSOR_ROWS;
DECLARE Name_Cursor CURSOR FOR
SELECT LastName ,@@CURSOR_ROWS FROM Person.Person;
OPEN Name_Cursor;
FETCH NEXT FROM Name_Cursor;
SELECT @@CURSOR_ROWS;
CLOSE Name_Cursor;
DEALLOCATE Name_Cursor;
GO Here are the result sets.
-----------
0 LastName
---------------
Sanchez-----------
-1