>Some other commands may require even more space, for example if you use SORT command the disk space needed to perform a sort can be as much as three times the size of the source table. You can check the amount of available disk space with DISKSPACE() and SYS(2020) functions.
Found FAQ #7847 by George Tasker, which I'm going to use.
If it's not broken, fix it until it is.
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