Release 10.1A: OpenEdge Development:
ADM Reference

DataSignature

A character string that lists the integers corresponding to the data types of the fields in a RowObject temp-table. This string is used to compare objects for equivalence as follows:

1 = CHARACTER
2 = DATE
3 = LOGICAL
4 = INTEGER
5 = DECIMAL
6 = Reserved for FLOAT OR DOUBLE in the future
7 = RECID
8 = RAW
9 = Reserved for IMAGE in the future
10 = HANDLE
13 = ROWID
Data type: CHARACTER
Notes: Read only