TURBU Tech – Firebird is a great database, but it’s got one really irritating drawback: no native support for the boolean type. The standard solution to this issue is to create a BOOLEAN domain as a special restricted version of a smallint, and then make your database driver output the correct type. The first part is easy. The second, not so much, if you want to use DBExpress. This really should be handled internally as a special case inside the DBX driver. Unfortunately neither Embarcadero nor Chau Chee Yang, maker of the alternative dbExpress Firebird driver, has released the source to their ...
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