SQL Cursor Example

author: Robert Wawszkiewicz

DECLARE authors_cursor CURSOR FOR
SELECT au_id, au_fname, au_lname
FROM authors
WHERE state = 'UT'
ORDER BY au_idOPEN authors_cursorFETCH NEXT FROM authors_cursor
INTO @au_id, @au_fname, @au_lnameWHILE @@FETCH_STATUS = 0
BEGIN
PRINT ' '
SELECT @message = '----- Books by Author: ' +
@au_fname + ' ' + @au_lname PRINT @message -- Declare an inner cursor based
-- on au_id from the outer cursor. DECLARE titles_cursor CURSOR FOR
SELECT t.title
FROM titleauthor ta, titles t
WHERE ta.title_id = t.title_id AND
ta.au_id = @au_id -- Variable value from the outer cursor OPEN titles_cursor
FETCH NEXT FROM titles_cursor INTO @title IF @@FETCH_STATUS <> 0
PRINT ' <<No Books>>' WHILE @@FETCH_STATUS = 0
BEGIN SELECT @message = ' ' + @title
PRINT @message
FETCH NEXT FROM titles_cursor INTO @title END CLOSE titles_cursor
DEALLOCATE titles_cursor -- Get the next author.
FETCH NEXT FROM authors_cursor
INTO @au_id, @au_fname, @au_lname
ENDCLOSE authors_cursor
DEALLOCATE authors_cursor
GO