Is it has to be Uint64?

[lzymll]

NextLong can return just long type since sql server don't support unsigned bigint type.

[thebestgin]

Is there an added value for the use for the data type uLong?

For the database I need a normal long. uLong can be converted to long, but will this be a problem in the future? It feels wrong to use the datatype uLong.

[thebestgin]

NextLong can return just long type since sql server don't support unsigned bigint type.

Maybe you can add mschuler as an assignees so he can get an email notification and answer your/our question.