Finding a record in a cursor
bobs at twft.com
Tue Jan 20 10:54:45 CST 2009
I have a bit of a problem here. I am trying to find a value in a
cursor, and then tell which record it is. I know I can use
revdatafromquery() and then use lineoffset() to determine the line,
but I am looking for a unique ID number generated by the SQL Database.
More precicely, I am looking to move the pointer to the record in the
cursor whose uniqueID column value is that specific Unique ID.
I perused through the dictionary but I did not see any command for
positioning the pointer on a record in the cursor. I suppose I could
walk through each record one at a time or get the whole column as text
and do a lineoffset().
The idea is to page through the SQL database x records at a time. When
I update a record I want to re-read the cursor and reposition the
pointer on the record I was on before the update. I cannot assume that
more records have not been added since the first cursor was obtained
(that would be irresponsible programming).
My instinct tells me I am going to have to fudge it. SQL may have
become the defacto database to work with, but it has some major flaws
in terms of working with large data sets. It's kind of like politics.
You may not like the particular party that has control of your state,
but the other guys have been run out of town and it's all you have to
Calvary Chapel CM
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