What is the VSAM error code for duplicate records?
File Status Codes (for Experienced)
|File Status||Error Description|
|00||Operation completed successfully|
|02||Duplicate Key was found|
|04||Invalid fixed length record|
|05||The file was created when opened – Successful Completion|
What is the VSAM error code for closing a file which is already closed?
VSAM file status code 42 occurs due to- Change the program to make sure that you do not give CLOSE file on the file which is already closed.
How do you verify a command in VSAM?
Verify. Verify command is used to check and fix VSAM files which have not been closed properly after an error. The command adds correct End-Of-Data records to the file. In the above syntax, vsam-file-name is the VSAM dataset name for which we need to check the errors.
How do I initialize a VSAM file?
Initializing VSAM File Status (Manually)
- Open the VSAM file in EDIT mode in File Manager.
- Insert any record in the VSAM file and save.
- Delete that record & save it will initialize the VSAM file.
How do I open a VSAM dataset?
To open a VSAM data set, use the Standard C library functions fopen() and freopen() just as you would for opening non-VSAM data sets. The fopen() and freopen() functions are described in z/OS XL C/C++ Runtime Library Reference. This section describes considerations for using fopen() and freopen() with VSAM files.
How do I open VSAM files in COBOL?
Because VSAM does not support random or dynamic processing, COBOL has to perform some extra processing to enable you to use ACCESS IS RANDOM or ACCESS IS DYNAMIC with OPEN OUTPUT or OPEN I-O ….Opening an empty file
- Open the file.
- Use sequential processing ( ACCESS IS SEQUENTIAL ).
- Use WRITE to add a record to the file.
How do I load data into VSAM?
Use the COBOL WRITE statement to add a record to a file without replacing any existing records. The record to be added must not be larger than the maximum record size that you set when you defined the file. Your program should check the file status key after each WRITE statement.
What happens when you open an empty VSAM file in a Cobol program for input?
What happens when you open an empty VSAM file in a COBOL program for input? A VSAM file that has never contained a record is treated as unavailable. Attempting to open for input will fail. An empty file can be opened for output only.
What are the different types of VSAM files available?
You can use VSAM to organize records into four types of data sets: key-sequenced, entry-sequenced, linear, or relative record. The primary difference among these types of data sets is the way their records are stored and accessed.
How do I view VSAM files in mainframe?
We use FILEAID to view a VSAM file. Type FA on the command prompt and see if it is available in your shop.
How do I check VSAM properties?
LISTCAT command in VSAM is used to view the properties of VSAM file like volume details, space details, path details, and catalog details. LISTCAT can list many properties like cluster, data, index, spae details, history, volume and much more.
How do I handle an empty VSAM file?
In a standalone step, issue an IDCAMS PRINT INFILE(VSAMFILE) COUNT(1). If the file is empty, an RC=04 will be raised. If the customer worries about exposing delicate file-information from PRINT, specify DD DUMMY for SYSPRINT. Remember, you’re only interested in the return-code.
How do you fix the problem associated with VSAM out of space condition?
Q62) How do you fix the problem associated with VSAM out of space condition? Q62) Define new VSAM dataset allocated with more space. Use IDCAMS to REPRO the old VSAM file to new VSAM dataset. Use IDCAMS to ALTER / rename the old VSAM dataset or se IDCAMS to DELETE the old VSAM dataset.
Can we read empty VSAM file?
A VSAM file that has never contained a record is treated as unavailable. Attempting to open for input will fail. An empty file can be opened for output only. When you open for output, COBOL will write a dummy record to the file and then delete it our.
Does VSAM support files that are not in CI format?
VSAM does not support files that are not in CI format. Programmer Response: Change your program to use managed SAM to access the file, or change the DLBL statement to specify a file other than SAM ESDS. Rerun the job.
What is an I/O error in CICS?
An I/O error is any unusual event that is not covered by a CICS condition. For VSAM files, IOERR normally indicates a hardware error. For user-maintained data tables, this condition occurs only for a non-UPDATE READ during loading when CICS has attempted to retrieve the record from the source data set.
Why did VSAM return a return code from the lock macro?
VSAM received a return code from the LOCK macro indicating that there is no space in the lock table to make a lock entry. Programmer Response: Use another program to load the file or specify ACB MACRF = NSR (no-shared resources) until the file is loaded.
What to do when VSAM fails to complete an I/O request?
An internal error occurred in a VSAM routine while VSAM was completing I/O requests. Programmer Response: Ensure that your program issues a DUMP macro when this type of error occurs. Save the dump you obtain for later problem determination.