In addition to general gnu cobol concepts, this program provides a useful demonstration of the following. A full list of microsoft cobol v2 file status codes is given in the chapter file status code tables. Sample cobol program to show how the file is defined in inputoutput section. Attempted to write to a file that has been opened for input. The file property specified in a parameter or option must match with that of the physical file. For a write or rewrite statement, the record just written created a duplicate key value for at least one. Cobol, one of the oldest programming languages in current use, still provides the framework for many vital business, finance, and administrative programs and systems that companies and governments use in daytoday activities. Using libdb and the file is locked by another program you get file status 61 and with vbisam you get status 30. Cobol, display file status code the following member cblrtnc1. For a read statement, the key value for the current key is equal to the value of that same key in the next record in the current key of reference. Introduction this example uses a suite of cobol programs and bms map sets to display a screen to prompt a user for a file status code.
If the file status clause is specified in the filecontrol entry, a value is placed in the specified file. Unless otherwise specified, each file status code can be received for operations on any file organizations in any access mode. Beware when the first character is a 9, these are vendor specific file status. In addition to the above file status conventions you can. File status code, return codes for data files and vsam simotime. The process of calling a program or exiting from a called program does not alter the status or positioning of a file associated with any external file connector. Describe the use of file status codes in correcting data management errors. Ryanmcfarland rm cobol file status codes ibm mainframe status codes.
Extended file status codes have the character 9 as the first byte of the file status. The file specifies the alternate record key clause and one of the following errors was detected. Display file status information, a suite of cobol programs. For example, suppose that a file status clause is coded like this. If you do not specify noans85 when compiling, then ansi85 file status. Values of file status where the first character is not a 9, are cobol standard values so testing for 41 to detect an already open file should work on all cobol implementations. The fields in the database file that is to be used as an alternate record key is invalid. The cobol compiler tends to rub salt in a wound in the sense that an error in. A file status of 95 is returned after a successful open when. Vsam status return code information is available without transformation in the currently defined cobol file status code.
For the cobol environment if the file status clause is specified in the file control entry, a value is placed in the specified status. Its name is an acronym, for common business oriented language, defining its primary. General rules for all formats all files the associated file must be open in the input or io mode at the time the statement is executed. When using ansi74 or ansi85 file status codes, the runtime system returns extended status codes if the extended file status is more specific than what would normally be returned. The ansi74 and ansi85 file status conventions are augmented with extended file status codes. Check and react to the file status on every file operation, open, read. Beware when the first character is a 9, these are vendor specific file status codes. How to check whether a file is open already in cobol. Recovering a corrupted file file status 98 micro focus. I checked on the internet what it is this status, and from what i understand is that the system does not find the file, but i created the file. So, rather than return a generic file status, this cobol system returns an extended file status of 9007. For an open or close statement with the reelunit phrase the. The file status of 97 is caused by the vsam file not being closed properly from the last job that had it opened many times caused by the abend of the prior job. Rational development studio for i ile cobol language reference 7.
If file status is returned without having called vsam, dataname8 is zero. Cobol is a thirdgeneration programming language, and one of the oldest programming languages still in active use. This document provides a summary of the twobyte file status code sometimes referred to as file return code or file status key with a brief narrative for each code. Introduction to ibm mainframes, cobol, compile and test programs on an ibm mainframe, design, code, and test a structured program, cobol features for structured coding, arithmetic statements and intrinsic functions. Output output mode is used to insert records in files.
This chapter lists all possible values that can be. The duplicates phrase is specified in the cobol program and the file was created with unique specified in dds. For the sake of brevity, no file status checking is performed. Enddisplay perform rewritekey endwrite if indexed file status not equal zero then display write problem.
The sharing phrase on an open statement overrides the sharing clause in the file. Support for vs cobol ii, ibm cobol for os390, gnu cobol and enterprise cobol. This package contains the following subdirectories. For a read statement, the key value for the current key is equal to the value of that same key. Your should test it, get it to work, and try to improve on it, itll improve your cobol.
The main program opens a file, which is written to, and read from, in two separate subprograms before the file is closed at the end of the main program. The following sections contain the rmcobol file status codes and the microsoft v2 file status codes. Programming and web development forums as400 ibm as400 miscellaneous topics. Cannot open a file because of a mismatch of file properties. Status codes for file and vsam access, lookup a file. Transfers the records present in the input files to the work file. The database file is a distributed data management ddm file. Simple text files cannot be used in cobol, instead ps physical sequential and vsam files are used. When the user enters the code a brief description of what caused. The layout and details of the file we declare here only. As400 view topic cobol file status 9p after dds change. I have written a jobmangementsystem like jobtrack or opca and this system uses 5 parallel working cobol programs for submitting and controlling the jobs. As you see i have a code patch for it but it has never been a problem before when using rm cobol or microfocue cobol. Its name is an acronym, for common business oriented language, defining its primary domain in business, finance, and administrative systems for companies and governments.
Free cobol books download ebooks online textbooks tutorials. A file is a collection of data related to a set of entities and typically exists on a magnetic tape or a disk. Cobol file status codes file system computer file scribd. Codes beginning with a 1 are considered at end messages, those beginning with a 2 are considered invalid key messages, file status codes beginning with a 3 are considered permanent errors, keys like 4x are logical errors and 9x are implementer defined. Invalid or incomplete file information 1 duplicate keys specified in cobol program. Do not operate on a file after it is closed with a lock. A quick reference of the vsam and qsam file status or return codes for an ibm mainframe system or micro focus cobol or gnucobol.
See the chapter file status for an explanation of file status, and how to use it. Check your joblog for a messageid of cpf5027 or cpf5032 to see if either of these conditions are true. If the program being called is a cobol program, the using phrase is included in the call statement only if there is a using phrase in the procedure division header. Mode description input input mode is used for existing files. Cobol overview program and file definition cobol procedures and statementscobol procedures and statements branching testing and debugging validation, logic, and arithmetic elements of structured cobol cobol reports dbms interface not covered in public class format. Vsam file status code 97 in cobol occurs due to itopen file successful and the file integrity verified. Could anyone point out why i am getting file status as 04 instead of 00. The execution of the read statement causes the value of the file status data item, if any, associated with file. Your should test it, get it to work, and try to improve on it, itll improve your cobol coding.
I do use separate sections for my file declarations but they do indeed share the same file status storage area. Here, filename is string literal, which you will use to name your file. For a write or rewrite statement, the record just written created a duplicate key value for at. The execution of a write statement was attempted on a file not open in the io, output, or extend mode. This might happen when a previous job did not close the file so vsam has to verify the integrity of the file. This clause is optional but when it is specified, the system moves a. Challenges of working with large xml documents in cobol working with large xml documents in your application programs can present several challenges. File status variable is updated after each file operation. This is especially true for programs written with procedural languages that require predefined, static variables such as cobol. The file status 48 occurs because of the following reason. The database file allows it open data path to be shared. Im studying cobol, but i have a problem when reading a file, cobol is returning the status of the file as 35.
If dataname1 is set to zero, the content of dataname8 is undefined. File status code, return codes for data files and vsam. This chapter lists all possible values that can be returned in file status. Cobol sources may need a change because of reserved words in gnu cobol, otherwise offending words may be removed byfnoreservedword. See the chapter file status code tables for a list of all the file status codes that can be returned. When the file status clause is specified, a value is moved by the runtime system into the data item specified by dataname2 after the execution of every statement that references that file either explicitly or implicitly. Cobol is abbreviated as common business oriented language and it is one of the oldest programming languages.
Scores of organizations are deciding to replace these. The duplicates phrase is not specified in the cobol program and the file was created allowing nonunique keys. Example write recordbuff write indexedrecord with lock on invalid key display key exists, rewriting. File description entry format 1 sequential file 9 iv ile cobol refer ence. Using the value of the file status field for your input file makes that easy and clear, especially when yusing 88s. File status file status codes are used by this cobol system to indicate the success, or otherwise, of any file operation carried out by your program. I am getting file status 04 after the read statement.
Each convention has a separate set of codes defined, although there is some overlap. Lets master fd clause fd stands for file description which describes the layout of all the files which. In this mode, we can only read the file, no other operations are allowed on the file. Here, file name is string literal, which you will use to name your file. Cobol 400 normally a file status 9d occurs because you have have attempted to lock a record twice read with update or another job already has a lock on the record you trying to read. This edition applies to version 4 release 2 of ibm enterprise cobol for zos program number 5655s71 and to all subsequent releases and modifications until otherwise indicated in new editions.
This must be declared in file section under fd clause. This chapter explains what file status is and how you can use it in your programs. A full list of file status codes is given in the chapter file status code tables. Ansi74 and extended file status codes ansi85 and extended file status codes. Cobol, one of the oldest programming languages in current use, still provides the framework for many vital business, finance, and administrative programs and systems that companies and governments. File status codes beginning with a 0 are considered successful execution. Tutorialbrainhow files are defined in file control. For the cobol environment if the file status clause is specified in the file control entry, a value is placed in the specified status key the 2character data item named in the file status clause during execution of any request on that file. There was a conflict between cobol s open verb and db2s exec sql.
This cobol system supports a number of file status conventions. While learning the basics of file in cobol, the concepts of both languages should not be corelated. Your contribution will go a long way in helping us. Jan 18, 2006 cobol file status 9p after dds change. Cobol 85, xopen cobol, cobol 2002 and cobol 2014 are always strict. The file has been successfully opened, but indexed database file created with unique key. Cobol tutorial cobol programming this tutorial covers most imporant topics of cobol topics like perform, call, string,unstring,comp,comp3,inspect, file,sequential file,indexed file etc once can post their cobol questions here in mainframe gurukul forums. Lets master fd clause fd stands for file description which describes the layout of all the files. Recovering a corrupted file file status 98 to recover a corrupted file which is returning a file status 98, use the rebuild option of the acucobol utility, vutil. The duplicates phrase is not specified in the cobol program and the file. The file organization specified in a parameter or option must match with that of the. Opens the work file in the io mode, input files in the input mode and output file in the output mode. Cobol file status status description 00 successful completion 02 indexed files only.
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