Titlebook: Mastering COBOL Programming; Roger Hutty,Mary Spence Textbook 1997Latest edition Roger Hutty and Mary Spence 1997 COBOL.Debugging.design.f

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悶熱

Tablests. A list consists of single data items, whereas a table consists of a list of groups of data items. Alternatively, a table can be considered to consist of two or more lists in which items with the same subscript have some association.

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Processing Relative Filesrformed on the sequentially organised files in the previous chapter can also be performed on relatively organised files. However, relatively organised files have the advantage that they can also be accessed randomly, that is, a specified numbered record can be accessed directly in a relative file wi

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COBOL Programming FundamentalsComputing is a . which, like many other processes, can be stated simply to provide three basic components:.which are connected as shown in the following diagram:

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DATA and PROCEDURE DIVISION FundamentalsThe . and . divisions are the two most important divisions of a COBOL program. The . contains the definition of all the data which will be used by the .. The . contains all the statements which will be executed by a program when it is run on a computer. During execution the . uses the data defined in the ..

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Ligament

ListsThere are many occasions in computing when it is necessary to deal with . (referred to in other programming languages as .), and we shall be looking at them in detail in the next chapter. However, in this chapter we shall be looking at . a list being a special case of a table.

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