Surprisingly few databases support true ‘Before-Insert-Triggers’ !

Least of all, both ‘row-level’ and ’statement’ level types.

Gupta SQLBase supports both ‘row-level’ and ’statement’ level types, as does Oracle.

MS SQLServer does not. (At least not without major compromises using an ‘Instead-of-Trigger’, which is a completely different thing)......

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