SQL TRACE output contents

We turned on SQL_Trace in an attempt to analyze some SQL and in looking at the file it generated we have come up with some questions about the fields it contains. We can't seem to find a description of the trace file in any of the manuals. There is a line:

PARSING IN CURSOR #1 len=829 dep=1 uid=26.

The dep field also appears in lines starting with PARSE #n, EXEC #n, and FETCH #n. I kind of figure uid is the user ID number. Can anyone shed any light on dep and len, and perhaps also share tips on intrepreting the SQL_Trace output. It doesn't appear these two are addressed in TKPROF output. Received on Fri Aug 05 1994 - 17:47:21 CEST