Ranges or values for selection by keys

Retrieving ranges for key pairs

CALL CDVALI (IVECT*,IRC*)

IVECT

Vector returning the minimum and maximum values for the various key pairs since the last call to CDINFO

IRC

Integer return code  

0

Normal completion

This routine returns the overlapping validity ranges for the various key pairs since the last call to CDINFO

Setting the historical retrieval time

CALL CDBFOR (TOPN,IDATE,ITIME,IRC*)

TOPN

Name of the top directory ('*' means all)

IDATE

Date : 6 Decimal integer : YYMMDD

ITIME

Time : 4 Decimal integer : HHMM

IRC

Integer return code  

0

Normal completion

Set the maximum insertion time for retrieval of all subsequent data objects for a given top directory Only objects inserted before the specified time will be retrieved, until a further call to CDBFOR is made.