Multiple readers in a sequential file stage.
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Multiple readers in a sequential file stage.
I want to know how multiple readers are working in a sequential file stage and for what purpose this option is given.
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The obvious purpose is for parallelism. The sequential file stage has a "lookahead" capability. This, combined with foreknowledge of the file's size, means that it is possible to establish the equivalent of database cursors into a text file, so as to process all of its data more swiftly.
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Any contribution to this forum is my own opinion and does not necessarily reflect any position that IBM may hold.