What is the use of file section in COBOL?
The FILE SECTION defines the structure of data files and used to declare file record layout that is required for file processing in the program. It should begin with the FILE SECTION header followed by a separator period.
What is file section COBOL?
Files are divided into records. Each record are divided into fields which contains the information about data. COBOL supports 3 types of files. Sequential File. Indexed File.
How do you write a file in COBOL?
WRITE File in COBOL
- We use the WRITE operation to write the content to a file.
- WRITE FILE-RECORD [FROM identifier1/literal1]
- WRITE FILE-RECORD.
- MOVE WS-DATA TO WS-REC.
- We use REWRITE operation to update record/s in a file.
- REWRITE FILE-RECORD [FROM identifier1/literal1]
- Use DELETE operation to delete record/s from a file.
What are the sections in COBOL?
There are four divisions in COBOL: Identification Division. Environment Division. Data Division.
What is a flat file in COBOL?
COBOL File Description format. Fixed-width flat file. A file characterized by delimited or fixed length (binary) files. Flattening. The conversion of files containing complex data structures, such as arrays, groups, and redefines, into data files that contain records with no structured relationships.
Which section is optional in COBOL?
The Environment Division is optional in a COBOL source program.
What is working storage section in COBOL?
Working-Storage section is used to declare temporary variables and file structures which are used in the program. Local-Storage section is similar to Working-Storage section. The only difference is that the variables will be allocated and initialized every time a program starts execution.
What is the working-storage section in COBOL?
The WORKING-STORAGE SECTION is used to declare any fields or records that are not going to be used in input files, or output files, but they are used to store the intermediate results of processing in a temporary storage area. The storage for WORKING-STORAGE items is allocated, when you start running the COBOL Program.
What is the COBOL record key clause?
Enterprise COBOL for z/OS, V4.2, Language Reference. RECORD KEY clause. The RECORD KEY clause (format 2) specifies the data itemwithin the record that is the prime RECORD KEY for an indexed file. The values containedin the prime RECORD KEY data item must be unique among records in the file. data-name-2.
What is cancel command in COBOL used for?
CANCEL Statement in cobol. The CANCEL command is used when you are calling a subprogram dynamically.When u issue cancel command after a dynamic call to subprogram,it will refresh or reset all the parameters that got updated in subprogram.