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Tricky CICS Interview Question on Updating VSAM records
Interview question on updating or re-writing records, in CICS. from one file type to another file type.
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IDCAMS: Copy VSAM to Non VSAM dataset
JCL to copy VSAM dataset to non-vsam dataset using IDCAMS utility.
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COBOL List of Top Date Functions
COBOL default date format is YYYYMMDD. Below is the list of COBOL intrinsic functions that help you get various Date related things. COBOL List of DATE Functions CURRENT-DATE None Alphanumeric Current date and time DATE-OF-INTEGER 1 integer Integer Standard date equivalent (YYYYMMDD) of integer date 5 DATE-TO-YYYYMMDD 1 or 2 integer Integer YYYYMMDD date converted…
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5 Power Thoughts on DB2 V11 Date Subtraction
Subtracting dates: Idea-1 The result of subtracting one date (DATE2) from another (DATE1) is a date duration that specifies the number of years, months, and days between the two dates. Idea-2 The data type of the result is DECIMAL(8,0). If DATE1 is greater than or equal to DATE2, DATE2 is subtracted from DATE1. If DATE1…
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COBOL Date Logic to Find Number of Days
Here is COBOL logic you can use for the calculation of DATEs.
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DB2 Alternate Isolation Level Option for ‘UR’
The isolation level option usually improves performance compared to other options. This reads all uncommitted data. No need to wait for till lock is released on the page or row. The other option is SKIP LOCKED DATA Example: SELECT ELEMENT FROM WORKQUEUE WHERE PRIORITY = ‘1’ AND STATUS=’OPEN’ SKIP LOCKED DATA; What is SKIP…
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Creating a VSAM AIX Using the BLDINDEX Example
Sample JCL to create alternate index in VSAM using BLDINDEX utility. The examples are explained to understand easily
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5 Top Limitations of COBOL SEARCH ALL
The condition following the word WHEN can test only for equality: Valid: WHEN T-CUSTOMER-NO (X1) = CUST-NO-IN Invalid: WHEN T-WEIGHT-MAX (X1) < WEIGHT-MAILED If the condition following the word WHEN is a compound conditional: The OCCURS item and its index, which define the table argument, must appear to the left of the equal sign. Valid:…
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How to know ISPF version Using SAREA command
Keeping up with changes to ISPF can be well worth a little effort. When you encounter a new release of ISPF, the first thing you should do is check out the “Changes for this release” Help option, paying particular attention to the Program Development Facility (PDF) section. How to Use SEREA Command The PDF component…
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Best Example for COBOL SEARCH and WHEN Condition
The top differences between Search and When condition in COBOL.
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