Method 2 often provides all the protection you need and is quite easy to program. You basically do something like:
To use this to prevent simultaneous inserts of the same data (for example if two employees try to insert the same contact into the DB), I suppose you could use a constraint (before insert) that checks that there is no data matching the md5 checksum, right?
-- Alban Hertroys MAG Productions
T: +31(0)53 4346874 F: +31(0)53 4346876 E: alban@xxxxxxxxxxxxxxxxx W: http://www.magproductions.nl
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