Label » Mainframe

Computing in the Cloud - is it like banking?

I hear often comparison of IT and computing in the cloud with other “commodities”. Some people say, well, we do get the water and electricity centrally, why would we not get the computing centrally as well? 655 kata lagi

Management

Making Fun Of Aging IBMers Is Not Funny.

by Anura Guruge

You can find this on Facebook.

CICS = Customer Information Control System
is an old, much beloved and widely used 
computer system for managing… 388 kata lagi

Anura Guruge

SRCHFOR – Batch Version

This is very useful feature when you are doing analysis on the existing modules.

Apart from using it in interactive mode, you can run a batch job to do a search for a string or multiple strings in a single PDS or multiple PDS. 112 kata lagi

Mainframe

HEX Value 41 – Confused as SPACE (Hex value of 40)

Recently we have encountered an issue with Hex value 41, which also looks like SPACE in normal view.

We have received a file which had this value in between spaces. 177 kata lagi

Mainframe

JCL – SYSIN CONCATENATION


SYSIN concatenation is mostly used when you are running DB2 queries in batch. 
You have all the query ready except the input that USER provides, 
which needs to be used in the WHERE condition. 47 kata lagi
Mainframe

DB2 UPDATE QUERY – UPDATE TABLE1 FROM TABLE2 DATA

Sometimes we have a scenario where all the data that needs to be updated in TABLE1 is available in a different table TABLE2.

Here the situation is that we have more than one column to be updated in TABLE1 from TABLE2. 55 kata lagi

Mainframe

DB2 PERFORMANCE ISSUE (When using EXISTS)

In DB2, we often use the predicate EXISTS to verify if a row is present 
in a table based on our required criteria.  We do not wish to get any 
data from the table being read on the right side of EXISTS, we just 
want to see if some row is present or not. 98 kata lagi
Mainframe