Question: What does the option PoForceIsNull mean?

Answer: Hmm :), this a great FIBPlus feature. For example, you have a query:

delete from Table1 where Param1 =?Param1 and Param2 =?Param2

Suppose, that Param2 is null. Standard components simply set Param2 buffer to nil and that's all. But actually, it is necessary to send another query to a server:

delete from Table1 where Param1 =?Param1 and Param2 IS NULL

Otherwise, the server will not delete a necessary record as it just cannot find such a record. The PoNoForceIsNul option allows TpFIBQuery (and TpFIBDataSet) to change SQL with NULL parameter values if necessary. If you have record with NULL fields in your selecting query, the "delete" query won't work until you set PoNoForceIsNul to True.

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When I had to find the best component to connect to my Firebird databases, FIBPlus imposed itself with its rapidity and reliability. Most importantly, it continued to evolve to be even better and whenever we had a problem, it was fixed promptly by Devrace team. We use FIBPlus in many projects related to Healthcare. We have hundreds of users who access databases up to 8 GB in size. I think there are many good third-party components out there, but not so many with an excellent support like the one provided for FIBPlus components. Thanks to you. >>

Evelyne Girard, Canada
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