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IMB Mainframe

At their core, mainframes are high-performance computers with large amounts of memory and processors that process billions of simple calculations and trans... [Show More]

11 Items

VASM - IBM Mainframe

Virtual Storage Access Method (VSAM

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124

VASM Introduction - IBM Mainframe

VSAM or Virtual Storage Access Method is a file storage access method used in MVS, ZOS, and OS/390 operating systems. It was introduced by IBM in 1970's. I... [Show More]

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126

Special DD Statements - IBM Mainframe

Special DD statements. Use special DD statements to specify private catalogs, private libraries, and data sets for storage dumps and checkpoints. This topi... [Show More]

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245

JCL - IBM Mainframe

Job control language (JCL) is a set of statements that you code to tell the z/OS® operating system about the work you want it to perform.

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207

JCL Procedures - IBM Mainframe

There are two types of procedures, catalog procedures and in-stream procedures. Both types are invoked by using one of the following JCL statements. You ca... [Show More]

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144

JCL Keyword Parameters And JCL Position Parameters - IBM Mainframe

The parameters apart from positional parameters in JOB Statement are called as Keyword parameters. All Keyword parameters are optional. Keyword parameters ... [Show More]

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148

JCL JOB or JCL DD - IBM Mainframe

Data definition (DD) statements define the data sets that a program or procedure uses when it runs. You must code one DD statement for each data set that i... [Show More]

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120

JCL EXEC - IBM Mainframe

The EXEC statement marks the beginning of a step within a job, and specifies the name of a program or cataloged procedure to be run.

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128

JCL DD Parameters - IBM Mainframe

A DD statement describes a data set extensively, and can include the following information: The name that the program uses to refer to the data set, known ... [Show More]

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133

COBOL Complete Guide - IBM Mainframe

Common Business Oriented Language Introduction ( COBOL )

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143

COBOL - IBM Mainframe

Common Business-Oriented Language (COBOL) is a programming language similar to English that is widely used to develop business-oriented applications in the... [Show More]