Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Database structure for time-oriented data. The first line shows the codes in display order delimited by “|”. A search of this line quickly identified what items were present. The second line shows the date-time stamp for items present (column heading) Subsequent lines contain the actual data values.
