Latest Answer: For any information related to VSAM dataset, we can code LC(LISTCAT) before the name of dataset. then it will display the entire information about that particular VSAM dataset.for space used....it will give like...Total spce used : 45 tracksTotal Space ...
- whether record size is (5+alternate key length+n*pmy key length ) or (5+pmy key length + n*alternate key length) where 'n' is the no. of duplicate alternate keys.
Latest Answer: VSAM files are used when we want to store data based on some key fields(Eg: KSDS)access method is indexed.NON VSAM files like PS are used when we want to store data which is not unique and also the access is sequential. ...
Latest Answer: Corruption can happen in many ways. The dataset itself may be dirty, which can cause S0C7 abends in poorly written programs.CA/CI's can be corrupted, which may lead to S0C4 or Sx13 abends.Can you be more specific? The remedy is very different depending ...
Latest Answer: To retrieve record from flat file you can use IDCAMS utility with REPRO command and can copy the data into either a VSAM data set or another flat file ...
(i) The ISPF panel or a standard JCL is used for creation of a NON VSAM dataset. The AMS program is used to create the VSAM files. (ii) The information about the Non-VSAM files is stored as dataset labels
For accessing a VSAM cluster sequentially, STARTBR, READNEXT, ENDBR commands are used. Suppose the VSAM cluster is sorted on the basis of a field (lets say age) and using STARTBR pointer is positioned on the record with name 'brijesh'. By using READNEXT that record is read. Now if i again use READNEXT, next record will be read(which could be the record with name other than 'brijesh'). If I want to read the next record with the same name (i.e. brijesh), whether RESETBR will be
Can i search in a vsam cluster? Let's say I have a vsam cluster in which I am storing information of employees (first name, last name, address, etc.) which the employee has entered. Now I want to search using first or last name so that the information of the employees with the entered name (last or first) is displayed. Can I do this and if yes, how to do ?
Latest Answer: YES!AIX for ESDS RECSZ = 5 + AIXKL + (n x 4) Where: AIXKL is the alternate-key length n = 1 when UNIQUEKEY is specified n = the number of data records in the base cluster that contain the same alternate-key value, when NONUNIQUEKEY is specified. ...
Latest Answer: VSAM was written as a replacement for ISAM. The main problem with ISAM was that if there were many insertions and deletions the way he chained the entries was horribly inefficient. VSAM through the use of splitting CIs was a hugh improvement. ...
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