How do I check my VSAM file status?

How do I check my VSAM file status?

VSAM file status code indicates the status of the operation….VSAM File Status.

How do I fix an open VSAM file error?

VSAM OPEN Error Resolution and Check in the Program Attributes for file organization (sequential, relative, or indexed) Prime record key. Alternate record keys.

What is status 23 in VSAM?

Indexed and relative files only. Attempt has been made to store a record that would create a duplicate key in the indexed or relative file OR a duplicate alternate record key that does not allow duplicates. 23. Indicates no record found.

How check if file is empty in COBOL?

Re: How to check if file is empty in cobol without reading?? Header record with logical file name, logical date for the data. Data records, which can be sequence-checked if they should be in sequence. Trailer record with record-count and hash-total(s). Check the header, check that there is only one header.

What is VSAM verify?

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.

How do you show file status in COBOL?

To define and use the file status information the following is required. A FILE STATUS field needs to be specified within the SELECT statement of a COBOL program. SELECT QSAM0080-FILE ASSIGN to QSAM0080 ORGANIZATION is SEQUENTIAL ACCESS MODE is SEQUENTIAL FILE STATUS is QSAM0080-STATUS.

What is file status 46 COBOL?

If a second sequential read is unsuccessful, a file status of 46 occurs and the AT END phrase is not executed.” When an AT END condition occurs, the READ is considered unsuccessful. This causes unpredictable results. The cause is the record contents returned to the program are UNDEFINED.

How do you read the last record in VSAM in COBOL?

How to Read a VSAM file from last record to first

1. Simply MOVE HIGH-VALUES to the RIDFLD.
2. Do a Start Browse first. Then issue a READPREV which reads the HIGH-VALUES record.
3. Issue another READPREV which actually reads the last record of the file. From that record on wards continue reading the file in reverse order.

How do I know if GDG exists?

checking GDG versions availability with IDCAMS LISTCAST This Utility will return (RC = 0) Zero if GDG Generation exists for the base mentioned in LISTCAT option. If the GDG base does not have any generation then it will return code of 4.

How do I add records to VSAM file?

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.

How do I view VSAM files in mainframe?

Aaru wrote: We use FILEAID to view a VSAM file. Type FA on the command prompt and see if it is available in your shop.

What is the return and error code for VSAM?

VSE/VSAM Return and Error Codes When VSAM returns control after it processed a VSAM macro (other than ACB, RPL, or EXLST), register 15 contains a return code indicating success or failure of the requested operation. A return code of X’00’ usually indicates a successful operation.

Why did the I / O statement fail in VSAM?

The I/O statement failed because of a boundary violation. This externally defined boundaries of a sequential file. been tried on a non-OPTIONAL file that does not exist. May need to map the COBOL file name to the physical file name. the open mode specified in the OPEN statement.

Why is my VSAM not reading my records?

An attempt was made to store a record with a duplicate key, or a duplicate record was found for an alternate index with the UNIQUEKEY option, or a record already exists at the accessed record location. VSAM failed to read index-set records of an index.

Why is file status 48 on an IBM mainframe?

The file status 48 occurs because of the following reason: The execution of a WRITE statement was attempted on a file not open in the I-O, output, or extend mode. Check the mode of the file opened. Thanks, Muthuvel.