On 6/14/2016 5:41 PM, Kurt Wendt wrote:
OK - part of the code in the system pulls data from MS SQL. So - I was trying
to mod this code - to add NULL as an option into the Select. But, I suspect I'm
not doing it correctly. Was
Look at the CAST function to allow and create nulls in a query result
cursor.
SELECT d.secid ,d.sec_name AS sec_nam ,d.coi AS issue_cnty ,
t.taxrate_el NULL FROM [dbo].[Dividends] as d JOIN [dbo].[Trandata] as t
ON t.dividend_id = d.dividend_id
So if coi is the field that is supposed to be null if it is zero, you
would do something like this:
SELECT d.secid, d.sec_name as sec_name, CAST(IIF(d.coi=0, .null., d.coi)
as N(12.2) NULL) as issue_cnty ... (and so on)
I think someone else mentioned it already but having a separate SELECT
(into a temporary cursor) for the Excel export is ideal. Remember, this
is VFP, you're not limited to SQL-only-kinds of data handling or other
junk from other languages. Temporary cursors are extremely powerful,
flexible, fast, and efficient. If you pull from MySQL into a table or
cursor, you could immediately do another select from that table or
cursor into your Excel exporting cursor. You could maybe do another
query into MySQL, but if you've already pulled the data you need it'll
be way faster to work with machine-local data.
-Charlie
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