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WHFS Database Data Exchange

WHFS Database Data Exchange. Jerry Nunn West Gulf River Forecast Center December 05, 2002. Software Package Overview. Three Main Components: Transfer (Copy) Component (WHFSTran) Standardization Component (SNOOPY/UPDATEDB)

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WHFS Database Data Exchange

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  1. WHFSDatabase Data Exchange Jerry Nunn West Gulf River Forecast Center December 05, 2002

  2. Software Package Overview • Three Main Components: • Transfer (Copy) Component (WHFSTran) • Standardization Component (SNOOPY/UPDATEDB) • Consistency Check and Standardization Check Component (in production – dependent on CR project )

  3. Database Transfer Program (WHFSTran) • Preliminary version in almost every SR office with WHFS • Shell program • Runs twice weekly on cron

  4. Database Transfer Program (WHFSTran - continued) • Unloads database tables & schema • NOTE: ONLY Parametric data (no met. or hydro data tables) transferred • Makes output files smaller

  5. Database Transfer Program (WHFSTran - continued) • Transfers (tarred and compressed) files to central server (SRH) • Small file size increases program efficiency • SRH server: • allows full access • avoids firewall, password, permissions

  6. Automated Database Standardization Package • UPDATEDB – Batch scripts to update selected table entries (automatic); • SNOOPY - a GUI used to make changes (interactive); • Final design recently set; • Input from every region during the development and testing phase; • National Headquarters also involved • Goal: Build consensus and “nationalize” the code.

  7. Consistency and Standardization Check Program • Under development • Most likely a “C” program • Logic: Patrick Sneeringer • Code: James Paul • Designed to be run at RFC and backup WFO

  8. Consistency and Standardization Check Program (continued) • Automatically downloads files (created by WHFSTran) from selected WFOs • Creates version of WFO database in INFORMIX at RFC (or backup WFO)

  9. Consistency and Standardization Check Program (continued) • GUI-based program then checks each table • Looks for differences in databases • Changes approved by user • May be automated (WFO level)

  10. Consistency and Standardization Check Program (continued) • Discrepancies stored in new database tables • Known discrepancies can be skipped with next pass • Considerable user freedom to make changes (or not)

  11. In Summary… • Standardization and transfer functions almost complete • Consistency check function expected Spring 2003 • Questions: Patrick Sneeringer817-831-3289 X209

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