64-bit unsigned integer data type

[Former Member]

Hi friends,

I have one maybe stupid question

We are doing integration with sap and I need to create some tables. I need some fields with 64-bit unsigned integer.

I need it to maintain seq.controled counters. What data type in sap corresponds to 64bit u-int or 32-bit u-int? Or I have to use another data type?

thank you in advance

[matt]

Depending on your byte size, perhaps INT4?

[Former Member]

Thank you,

As I understood from SAP BOL, INT4 is 32-bit with sign. does sap have 4-byte unsigned data type?

[matt]

SAP doesn't have unsigned 4-byte integer as a type.

You could use Data type RAW. E.g. domain RAW4, gives you 4 bytes of uninterpreted binary data. If your byte length is 16, then that's 64 bit. It'd be a bit of not very difficult work to convert this to a number at the application level.

You'd have to work a bit to convert that data type into an integer at app level. Why particularly must your counter be an unsigned 4-byte integer. Why not, e.g. a packed decimal with 0 dp?

matt

[Former Member]

Paket decimal? ok. I supposed that low level operations with integer data type are faster

I know how OS stack works with unsigned integer and with signed bit+floating point

Could I use packet decimal without any problems with system performance?