Mode of Use
Although it is essentially an interactive tool, SPUFI operates using a pair of datasets. (A dataset on z/OS is equivalent to a file on other operating systems.) In the main SPUFI screen one specifies an input dataset and an output dataset; these can be specified once and then reused repeatedly. When the user moves on from the main screen, the standard ISPF editor is opened on the input dataset. At this point the user can enter the required SQL statements using the familiar editor. On exiting from the editor the main SPUFI screen reappears; when the user moves on this time the contents of the input dataset are executed. The results are placed in the output dataset and the ISPF editor is opened (in read-only "browse" mode) on that output. This is how the user reads their results. Interactive use of SPUFI continues around these steps; in summary the cycle is:
... Main -> edit -> Main -> view output -> Main -> edit -> Main -> view output -> Main ...Because SPUFI uses normal datasets for the commands and the output, it is possible to pre-populate the commands or operate on the output by accessing the datasets independently of the SPUFI tool. Using datasets also means that a possibly-complicated set of SQL commands will persist from session to session rather than being lost when the user exits the tool.
Read more about this topic: IBM Spufi
Famous quotes containing the words mode of and/or mode:
“The character of the logger’s admiration is betrayed by his very mode of expressing it.... He admires the log, the carcass or corpse, more than the tree.... What right have you to celebrate the virtues of the man you murdered?”
—Henry David Thoreau (1817–1862)
“That the mere matter of a poem, for instance—its subject, its given incidents or situation; that the mere matter of a picture—the actual circumstances of an event, the actual topography of a landscape—should be nothing without the form, the spirit of the handling, that this form, this mode of handling, should become an end in itself, should penetrate every part of the matter;Mthis is what all art constantly strives after, and achieves in different degrees.”
—Walter Pater (1839–1894)