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Category: Mainframes

We talk Mainframes here.

JCL Statements – EXEC statements

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| Uncategorized, JCL

  An EXEC (or execute) statement defines the beginning of a step in a job or a procedure.      […]

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JCL statements – JOB statement

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| JCL

  The JOB statement is the very first control statement in a JCL. It marks the start of a job […]

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Introduction to JCL

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| JCL

Initially, when the computers were new to the world, the size of the computers was huge and very clumsy to […]

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Delete content of sequential dataset on mainframe.

1 Comment
| Mainframes, Cobol, JCL, sort

Delete content of sequential dataset on mainframe While working with mainframes there will be times when you’d like to delete […]

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NULL in DB2 and COBOL.

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| Cobol, IBM DB2

NULL In DB2 and COBOL SQL, unlike COBOL, supports variables that can contain null (values – the use of word […]

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Difference between DFSORT and SyncSort.

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| Mainframes, sort

Difference between DFSORT and SyncSort.   As a mainframe programmer even if one is not in to too much of […]

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Is it DFSORT or SyncSort?

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| Mainframes, sort

Is it DFSORT or SyncSort? DFSORT is a sort product sold by IBM. SYNCSORT is a competing product sold by […]

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Find the list of programs using a DB2 table.

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| Mainframes, IBM DB2

Find the list of programs using a DB2 table. If the question of nature, how can I find the list […]

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JCL – Job Control Language.

1 Comment
| Mainframes, JCL

JCL – Job Control Language.   Job Control Language (JCL) is a scripting language used on IBM mainframe operating systems. […]

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ISAM- Indexed Sequential Access Method.

2 Comments
| Mainframes, Access Methods

ISAM (pronounced “eye sam”) stands for Indexed Sequential Access Method. It is a technique for storing and accessing data in […]

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