For each table, OpenEdge computes a CRC value (database CRC) from selected elements of the table metaschema. When compiling a procedure, OpenEdge inserts the database CRC for each database table the procedure accesses. The database CRC for each table is stored in the metaschema _File record _CRC field for the table. A matching CRC ensures that the schema referenced by the r-code is compatible with the table schema, regardless of its time stamp.
