Difference between revisions of "Technical Notes"
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Aubrey Moore (Talk | contribs) |
Aubrey Moore (Talk | contribs) |
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WHERE | WHERE | ||
trap.trap_id=trap_routes.trap_id | trap.trap_id=trap_routes.trap_id | ||
+ | |||
+ | * Query to add extra column with <b>observation_date</b> format as m/d/Y: | ||
+ | SELECT *,DATE_FORMAT(observation_date,'%m/%d/%Y') AS US_observation_date FROM crb_observations; |
Revision as of 13:45, 18 January 2008
- Query to find trap_id's in the trap_routes table which are unmatched in the trap table:
SELECT trap_routes.trap_id, trap.trap_id FROM trap_routes LEFT JOIN trap ON trap_routes.trap_id = trap.trap_id WHERE trap.trap_ID IS NULL
- Query to update trap table using values from trap_routes table:
UPDATE trap, trap_routes SET trap.trap_route=trap_routes.trap_route, trap.trap_route_sequence=trap_routes.trap_route_sequence WHERE trap.trap_id=trap_routes.trap_id
- Query to add extra column with observation_date format as m/d/Y:
SELECT *,DATE_FORMAT(observation_date,'%m/%d/%Y') AS US_observation_date FROM crb_observations;