"0E0" is one of several ways of achieving that effect. "0.0" also comes to mind. And then there is the venerable hack that keeps "0 but true" from generating a warning in numerical context. (Clearly this hack was written and propagated before anyone noticed that there was no need for it...)

In reply to Re^4: Odd "rows affected" values using DBI on MySQL by tilly
in thread Odd "rows affected" values using DBI on MySQL by LassiLantar

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