Cobol, Writing Output to Multiple Files An array can contain any number of data items of identical type and size. Its own file. In other words I am looking for a way to make my COBOL program write to an unknown number of files.number would be however many. Writing Output.
COBOL file processing - Each data item in the array is referenced by the name of the array and its position in the array given by a subscript or index contained in parentheses following the array name. Such a file becomes an input file from which records can be read sequentially. When a file is to be created for the first time, it must be opened in the OUTPUT mode. File can be written in this mode. The EXTEND mode also opens a file for writing, but the file pointer is positioned after the end of the last record.
COBOL File Handling Sample Programs — TutorialBrain Arrays, as all COBOL data items, must be declared in the DATA DIVISION, but are distinguished from “scalar” (unsubscripted) data items by use of the OCCURS clause in their data definition. Sample COBOL Program to show how file structure is defined in FILE Section A TutorialBrain-File definition in FD clause in File-section Let’s understand the various options which are under the FD clause.
COBOL - File Handling Verbs - Tutorialspoint Arrays may be declared for elementary or group data items at levels 02-49. Write statement can be used with FROM option to directly write records from the working storage variables. From is an optional clause. If the access mode is sequential, then to write a record, the file must open in Output mode or Extend mode. If the access mode is random or dynamic, then to write a record, the file must open in Output mode or I-O mode.
COBOL Sample Program - Seqential File Writing This example declares an array named TEMP that contains 24 elementary data items, each of PIC 999, and referenced as TEMP (1), … DAILY-TEMP is not itself an array, but a group data item 72 characters long: 24 x 3. COBOL Tutorial studay material - sample cobol sequential file writing program
Writing a Pro*COBOL Program Any 02-49 level data definition can contain an OCCURS clause. Regardless of which delimiter is used in the Pro*COBOL source file, Pro*COBOL generates the delimiter specified by the LITDELIM value. Embedded SQL Syntax. To use a SQL statement in your Pro*COBOL program, precede the SQL statement with the EXEC SQL clause, and end the statement with the END-EXEC keyword.
COBOL Program to read a flat file sequentially and write it. Here the array MONTH-TOTALS consists of twelve identically formatted occurrences of a group data item, each 14 characters long, each of which contains four elementary data items. COBOL Program to read a flat file sequentially and write it to an output file, not able to read at all loop is going infinite Ask Question Asked 7 years, 7 months ago
COBOL - Program Structure - Tutorialspoint An alternative construct of arrays of only elementary data items is: Individual array elements can be used as any other COBOL variable in an expression by referencing the array name and the element’s position in the array with a subscript. A COBOL program consists of four divisions. Identification Division. It is the first and only mandatory division of every COBOL program. The programmer and the compiler use this division to identify the program. In this division, PROGRAM-ID is the only mandatory paragraph. PROGRAM-ID specifies the program name that can consist 1 to 30 characters.
Sample COBOL Program Using “Occurs Depending On” The subscript can be an integer numeric literal, an integer numeric data item or (in COBOL-85) an expression. The below program read a fixed file 85 bytes containing inventory data of items, storage location and quantity available in each location and write the same into a variable length output file using occurs depending on clause. File – Control. No changes here, as usual just provide JCL DD name vs COBOL program file name mapping. FILE-CONTROL.
COBOL File Operations with Sample Programs — TutorialBrain The above statement assigns the value 0 to the second element of the array TEMP. OPEN OUTPUT FILE-NAME. – File opened for Writing. OPEN I-O FILE-NAME. – File opened for reading as well as writing used mostly for updating of the record in the file OPEN EXTEND FILE-NAME. – File opened for appending. Used for Relative and Indexed Files.