sql - Bitwise operator in firebird

Question

Can we do bitwise and in a firebird procedure without using a UDF? is there one of the built in function or is there a way to get the same results with standard built in commands?

I tried http://www.firebirdsql.org/refdocs/langrefupd21-intfunc-bin_and.html (BIN_AND) also but i need some implementation without UDF.

Ex: (3 & 3) returns 3 in SQL but not in firebird(firebird 2.1).

Answer 1

Firebird 没有位运算符，BIN_AND()函数是要走的路。从 Firebird 2.1 开始，这些BIN_*函数是内部函数，即它们始终可用，无需任何外部 DLL 或将它们注册为 UDF。