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  • ISPF Find Commands

    Here is a list of ISPF ‘FIND’ command and its options. These are useful for ISPF editor.

  • DB2- Use of ‘COALESCE’ Function (1 of 2)

    The “COALESCE” function is one of the frequently used functions in DB2. Before going into detail, I just want to describe it in layman terms. This function validates for NULL, and secondly, if NULL is there it assumes some value as we give in the function. Syntax: COALESCE(epression1,expression2) It is like decision maker. Its uses are many. Usage-1: CASE WHEN…

  • Role of Small Talks to speak with new people

    Questions and Small talks really boost your speaking skills with new people.

  • SQL CAST Function Convert Numeric to Decimal

    CAST function rules to convert NULL value as an integer of Char.

  • COBOL: Importance of 7th Column

    COBOL 7th column you can use for different purposes. There are five real uses and it is important. Read more.

  • Why ‘PIC’ Clause Not Required for COBOL Comp, Comp-1, Comp-2

    Comp variables popularly use in all mainframe technologies – COBOL/IMSDB/IMSDC/CICS. At word boundaries Comp-1 and Comp-2 are more efficient than comp-3 (takes less space). COMP Below is the range for “COMP” data type. COMP-1 and COMP-2 Let us take on “COMP-1”. It stores data internally as 1 word. It takes 4 bytes of space. For Comp-2, the…

  • COBOL Performance Tuning-Part:1

    COBOL performance tuning tips and ideas to apply today

  • ISPF- Commands Pack ON/OFF – Part 2

    ISPF commands/macros are popular while editing files/programs/jcls in PDS members, Endevor and Changeman. In my previous lot I have given some commands. PACK- This is one of the most important profile command. I will give more details on it. Pack OFF  ==> It decompress the data. So this will not a problem. The data will be saved as we entered.…

  • Soft skills: How to Improve Communication Among Team

    Here are the top ideas, which you practice that help your communication among the team.

  • Cobol- Signed Number and Memory

    This is very interesting. one day my old colleague went for an interview. He was asked-tell something about signed numbers. The field we define when sign is involved is PIC S9(2). We can enter two digit negative value. For example, -24. Developer has to remember is, in the file, the signed numbers we can not see. When you…

  • IMS DC MFS Control Blocks (3 of 3)

    The four blocks of IMS DC control blocks explained in this post.

  • IMS DB Quiz Part 2

    This time I created a Quiz on IMSDB part-2. It has 20 questions. Your pass mark is 80%. Just give your email, if you wish to have certificate. Taking Quiz helps you remember subject. The Quiz includes: True/False Multiple Choice This Quiz costs $50, if you wish to take online. I am giving here  completely free.…