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Managing ABL Applications
R-code Features and Functions : Database CRCs and time stamps : CRC versus time stamp validation : CRC and time stamp availability
CRC and time stamp availability
During compilation, OpenEdge always inserts both database time stamps and CRCs in the r-code. If a database is not connected with the Time Stamp (-tstamp) parameter during procedure compilation, OpenEdge turns on a bit in the r-code. This bit tells the run-time interpreter to check the CRC if the time stamp check fails.
Note: The Time Stamp (-tstamp) parameter is supported for backward compatibility only.