On 21 May 2012 08:01, François Delpierre <francois.delpie...@gmail.com>wrote:

> I must ensure there is always at least one row in a table. (My application
> parameter table)
> How can I prohibit delete of the last row of a table ?
> As it looks the ondelete is executed AFTER deletion...
>

Not tested but what about something like (pseudocode):

if count(query) > 1:
     deleteable = True
else:
     deletable = False

grid = SQLGRID(query, deletable = deletable)

Regards
Johann
-- 
Because experiencing your loyal love is better than life itself,
my lips will praise you.  (Psalm 63:3)

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