Hi All, How to use @@CURSOR_ROWS ?? or Can i user this as like this: Open c1 Set @i=1 fetch c1 into val1,val2 While i<>@@CURSOR_ROWS begin Set @i=i@+1 .. .. .. fetch c1 into val1,val2 end Regards Srini
FROM BOL: @@CURSOR_ROWS Returns the number of qualifying rows currently in the last cursor opened on the connection. To improve performance, Microsoft® 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 @@CURSOR_ROWS is called. Return value Description -m The cursor is populated 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 is constantly changing. It can never be definitely stated that all qualified rows have been retrieved. 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. Syntax @@CURSOR_ROWS Return Types integer Remarks The number returned by @@CURSOR_ROWS is negative if the last cursor was opened asynchronously. Keyset-driver or static cursors are opened asynchronously if the value for sp_configure cursor threshold is greater than 0, and the number of rows in the cursor result set is greater than the cursor threshold. Examples This example declares a cursor and uses SELECT to display the value of @@CURSOR_ROWS. The setting has a value of 0 before the cursor is opened, and a value of -1 to indicate that the cursor keyset is populated asynchronously. SELECT @@CURSOR_ROWS DECLARE authors_cursor CURSOR FOR SELECT au_lname FROM authors OPEN authors_cursor FETCH NEXT FROM authors_cursor SELECT @@CURSOR_ROWS CLOSE authors_cursor DEALLOCATE authors_cursor ----------- 0 (1 row(s) affected) au_lname ---------------------------------------- White (1 row(s) affected) ----------- -1 (1 row(s) affected)
Hi, SELECT @@CURSOR_ROWS DECLARE authors_cursor CURSOR FOR SELECT au_lname FROM authors OPEN authors_cursor FETCH NEXT FROM authors_cursor SELECT @@CURSOR_ROWS CLOSE authors_cursor DEALLOCATE authors_cursor i have see the example in the online book ..SELECT @@CURSOR_ROWS is giving 0 even i got so many rows in the table Regards Srini
Use this statement , I have added "STATIC" to it. SELECT @@CURSOR_ROWS DECLARE authors_cursor CURSOR STATIC FOR SELECT au_lname FROM authors OPEN authors_cursor FETCH NEXT FROM authors_cursor SELECT 'cusrsor rows ' + cast(@@CURSOR_ROWS as varchar(20)) CLOSE authors_cursor DEALLOCATE authors_cursor STATIC Defines a cursor that makes a temporary copy of the data to be used by the cursor. All requests to the cursor are answered from this temporary table in tempdb; therefore, modifications made to base tables are not reflected in the data returned by fetches made to this cursor, and this cursor does not allow modifications. Remarks The number returned by @@CURSOR_ROWS is negative if the last cursor was opened asynchronously. Keyset-driver or static cursors are opened asynchronously if the value for sp_configure cursor threshold is greater than 0, and the number of rows in the cursor result set is greater than the cursor threshold. I hope this will clear your points Thanks Sandy
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by benwilson</i><br /><br />why not just use <br />WHILE @@FETCH_STATUS = 0 ???<br /><hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote"><br /><br />Hi ben @@fetch_status is useful when we process the recordset row by row till the fetch status is 0.<br />But srini needs the use of @@cursor_rows which keeps the no of rows currently in cursor opened.<br />So srini the values depends on the cursor you have opened if it is dynamic it will not populate the no of rows but if static then the recordsetset is fully populated and will return the no of qualifying rows which you can use as u want.[<img src='/community/emoticons/emotion-1.gif' alt='' />]
