SQLAnywhere: Cursor getting closed after executing a DDL statement

Question

Having this code here:

DECLARE @rowfoo integer
DECLARE @query varchar (32000)

SET @query = 'CREATE OR REPLACE PROCEDURE testprocedure AS
            BEGIN
                print ''Just a dummy text''
            END'

DECLARE test_cursor CURSOR FOR
        SELECT row_num FROM sa_rowgenerator(1, 31, 1)

OPEN test_cursor
    FETCH NEXT test_cursor into @rowfoo
    WHILE @@FETCH_STATUS = 0
    BEGIN
        execute(@query)
        FETCH NEXT test_cursor into @rowfoo
    END
CLOSE test_cursor
DEALLOCATE test_cursor

I've recognized, that the cursor is getting closed after the execute(@query) statement. Based on what I've found so far it's because of implicit commit done for DDL statements. As I need to create number of procedures via a script, is there any work around for this issue?

Answer 1

When opening a cursor, there is the WITH HOLD preventing the issue. So

DECLARE @rowfoo integer
DECLARE @query varchar (32000)

SET @query = 'CREATE OR REPLACE PROCEDURE testprocedure AS
            BEGIN
                print ''Just a dummy text''
            END'

DECLARE test_cursor CURSOR FOR
        SELECT row_num FROM sa_rowgenerator(1, 31, 1)

OPEN test_cursor WITH HOLD
    FETCH NEXT test_cursor into @rowfoo
    WHILE @@FETCH_STATUS = 0
    BEGIN
        execute(@query)
        FETCH NEXT test_cursor into @rowfoo
    END
CLOSE test_cursor
DEALLOCATE test_cursor

Is working well for my case. As an alternative close_on_endtrans option could also be switched either for session or public.