Running SAS on a mainframe environment like z/OS allows you to process massive enterprise datasets with high performance. Among the most commonly used SAS procedures are PROC SORT, which help you sort,…
SAS in Mainframe -Tutorial
The powerful data analytics system SAS isn’t just for Windows or UNIX environments—it’s fully capable of running in a mainframe environment like z/OS. In the world of mainframe computing, SAS opens up…
CHAR and VARCHAR in COBOL
In this article, we’ll explore the differences between CHAR and VARCHAR in DB2, their storage implications, performance considerations, and how VARCHAR columns map to COBOL host variables. Understanding the CHAR Data Type…
DB2 Query to check Privilege(C/R/U/D) held by cobol programs on DB2 table
The solution is to use SYSTABAUTH table. Assume the table name is ‘DB1T04’ and we want to find out what all programs performs C(CREATE) R(READ) U(UPDATE) or D(DELETE) operation. A simple query…
How COBOL Programs Connect To CICS, IMS, & DB2
COBOL program connection refers to how COBOL applications running on IBM z/OS mainframes connect with subsystems such as CICS, IMS, and DB2. This connection allows programs to process transactions, access databases, and…
TSO Command to identify Dataset Contention in Mainframe-ISRDDN
Most organizations have in house tools to check for dataset contention. Mostly it is a REXX code behind the tool, however, this TSO COMMAND will help to do the same task and…
Understanding COMP and COMP-5 in IBM COBOL
In IBM COBOL, the COMP (computational) data type is used to store numeric values in binary format, ideal for efficient arithmetic operations. This format requires the data to be integers, and the compiler allocates memory in…
DB2 Constraints
DB2 Constraints Constraints help to maintain data integrity without any procedural logic(like triggers, Stored procs). Writing a constraint is quite easy and has two parts to it, namely,the constraint Name & the…
COMP * Command in JCL
COMP * or COMP * x is a handy command to compare the changes made to a JCL. If this command is issued in modified JCL, it will show the old and…
Public Cloud
Public Cloud is an IT model where services and infrastructure are managed by a third-party provider and shared with multiple organizations using the public Internet. That means it offloads much of the…
Private Cloud
When Organizations uses private dedicated environments, i.e. organization is running an environment where the sole tenant is the company itself. The company is ultimately responsible for maintaining the hardware, software, and networking…
How COMP-3 Saves Space-In COBOL
Having a clear understanding of Zoned Decimal format is essential before diving into Packed Decimal (COMP-3) format in COBOL. By default, COBOL stores numeric data in Zoned Decimal (DISPLAY) format, where every…
What is Zoned Decimal In COBOL
When working with COBOL on IBM mainframes, understanding how numeric data is stored internally is essential. One of the most common numeric formats is Zoned Decimal in COBOL, which is used to…
Buffer Pool In DB2
In IBM Db2 databases, data is physically stored on disk across multiple files. Each file is divided into fixed-size blocks known as pages, which serve as the smallest unit of data exchange…
Catalog Tables In DB2
The word catalog signifies a list of items. When DB2 is installed, DB2 creates a set of tables which stores the information about DB2 objects as and when it gets created/updated, like…