How to change the length of a variable in CICS

JayanthiKannan · New User Joined: 14 Jul 2010 Posts: 3 Location: Chennai

Hi,I need to change the length of a variable in cics,Please help me
For example consider my field namely address field -40 bytes,But I want to change the length in the program as 20.How to do this?

expat · Posted: Mon Nov 15, 2010 7:07 pm

And this has exactly what to do with JCL ???
Please learn to post in the correct forum

Garry Carroll · Posted: Mon Nov 15, 2010 7:11 pm

You don't say how the variable is currently defined. Is it defined in a record structure? Defined in a BMS map? Defined elsewhere? You don't say why you want to change it, so we can't guess at what knock-on effects there may be....

The actual changing is straightforward - just find the variable in the program and change it.

Garry.

JayanthiKannan · New User Joined: 14 Jul 2010 Posts: 3 Location: Chennai

My variable is defined in BMS Map.Consider that I have 10 records in a map.I want my first address field to be 20 and then 40 like that(length order may change).Maximum is 40 and minimum is 20.so how can I change?In may map variable is declared as 40.

Bill O'Boyle · Posted: Mon Nov 15, 2010 8:11 pm

If you need two separate fields, then the map must be changed or you could instruct the user to always enter a delineator between the one single map field, such as a '/' or whatever your choosing.

Keep in mind that a given map-line has a maximum of 79-positions.

EG -

THE FIRST ADDRESS/THE SECOND ADDRESS

When you issue a RECEIVE, begin at byte 41 (first-address maximum-length) and (if the '/' is not present) proceed backwards until you find the delineator. If you don't find it, then return the map to the user as an error.

With that, your single map field will need to be a maximum of 79-bytes long (40/1/38) or you can programmatically adjust the '/' position.