bool __fastcall SQLStrToBoolean(const System::UnicodeString
      Value)

Call the SQLStrToBoolean method to convert a string that contains an SQL 2003 standard boolean constant to an actual Boolean value. All SQL and filter expressions in ElevateDB require standard boolean constants, which are TRUE and FALSE (case-insensitive).

Please see the Types topic for more information on the data types in ElevateDB and their literal representation.