Npgsql Api Docs

BitString.And Method 

A logical and between this string and another. The two strings must be the same length.

[Visual Basic]
Public Function And( _
   ByVal operand As BitString _
) As BitString
[C#]
public BitString And(
   BitString operand
);

Parameters

operand
Another BitString to AND with this one.

Return Value

A bitstring with 1 where both BitStrings had 1 and 0 otherwise.

See Also

BitString Class | NpgsqlTypes Namespace