The TRANSQUERY function is used to detect whether or not a transaction is active on the current process. It takes the general form:
TRANSQUERY will return 1 (true) if the process is within a transaction boundary, and 0 (false) if it is not. In other words, TRANSQUERY will return true if the TRANSTART statement has been issued but a TRANSEND or TRANSABORT statement has not yet been processed.
By default, all hashed files are marked for inclusion in a transaction however this can be modified by the jchmod utility.
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