Difference between revisions of "Technical Notes"
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Aubrey Moore (Talk | contribs) (New page: *Query to find unmatched trap_id's: 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) |
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| − | *Query to find unmatched trap_id's: | + | *Query to find unmatched <b>trap_id</b>'s: |
SELECT trap_routes.trap_id, trap.trap_id | SELECT trap_routes.trap_id, trap.trap_id | ||
FROM trap_routes | FROM trap_routes | ||
LEFT JOIN trap ON trap_routes.trap_id = trap.trap_id | LEFT JOIN trap ON trap_routes.trap_id = trap.trap_id | ||
WHERE trap.trap_ID IS NULL | WHERE trap.trap_ID IS NULL | ||
| + | |||
| + | * Query to update <b>trap</b> table using values from <b>trap_routes</b> table: | ||
| + | UPDATE trap, trap_routes | ||
| + | SET trap.trap_route=trap_routes.trap_id, trap.trap_route_sequence=trap_routes.trap_route_sequence | ||
| + | WHERE trap_routes.trap_id=trap.trap_id | ||
Revision as of 12:29, 16 January 2008
- Query to find unmatched trap_id's:
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_id, trap.trap_route_sequence=trap_routes.trap_route_sequence WHERE trap_routes.trap_id=trap.trap_id
