How handle UNISYS 9bit data

dhwankim · Post by **dhwankim** » Tue Jul 20, 2004 8:29 pm

Hi gurus.

I want to extract data from unisys Mainframe.

They(my customer) said this unisys system is using 9bit data format.

but I have no idea about unisys.

So I want to know how extract from 9 bit data to open system.
and How to support this process by datastage.

How to convert 9bit format to 8bit format.

PLS give any idea about that.

Thanks in Advance.

From Seoul. Korea

roy · Post by **roy** » Fri Jul 23, 2004 8:45 am

Hi,
First time i hear of this, then again I never dealt with something like this before.
the only advice I can think of is to try to get an idea of what this 9bit data is, how it is implemented etc'.
then check how and if you can comunicate with such data in the required env.
are there any existing drivers that supports this type of data representation?

IHTH,

ray.wurlod · Post by **ray.wurlod** » Fri Jul 23, 2004 5:36 pm

Why do you always get the hard ones, Dae-Hwan?

I think you will need to ask the owners of the mainframe, or the Unisys company, what "9 bit" actually means. It may, for example, be a proprietary scheme for encoding Korean characters. If you can obtain a list of character mappings, it may be possible to build a DataStage NLS map with hooks for handling 9-bit quantities.

Another possibility is that the ninth bit is simply a check bit.

A much simpler approach would be, if possible, to have the mainframe dump the data in an appropriate eight-bit format, possibly one of the KSC encodings.