internal storage
Moderators: chulett, rschirm, roy
On a temporary basis, yes. Datasets. That will be stored in DataStage internal format, in the resource disc. They are the most efficient way in terms of space, read/write efficiency to store data. You also have hashed files, file sets and sequential files.
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As much as possible, in parallel jobs, we strive not to use internal storage (that is, not to touch data down to disk), as this slows things down. The structure of data in memory is given by the record schema that you can see in the generated OSH and the score. The same structure is used in Data Sets. Numeric values are stored in binary formats, while variable-length strings have a prefix showing how many characters there are in the string. If NLS is enabled internal storage is Unicode, if NLS is not enabled internal storage is "eight-bit ASCII".
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Any contribution to this forum is my own opinion and does not necessarily reflect any position that IBM may hold.
Any contribution to this forum is my own opinion and does not necessarily reflect any position that IBM may hold.