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Transaction processing and transactional recovery z/OS DFSMStvs Planning and Operating Guide SC23-6877-00 |
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Different applications often need to share VSAM data sets. Sometimes the applications need only to read the data set. Sometimes an application needs to update a data set while other applications are reading it. The most complex case of sharing a VSAM data set is when multiple applications need to update the data set and all require complete data integrity. Consider these examples:
Transaction processing provides functions that coordinate work flow and the processing of individual tasks for the same data sets. VSAM record-level sharing and DFSMStvs provide key functions that enable multiple batch update jobs to run concurrently with CICS® access to the same data sets, while maintaining integrity and recoverability. |
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