PostgreSQL - Tipps und Tricks: Unterschied zwischen den Versionen
Aus Geoinformation HSR
Stefan (Diskussion | Beiträge) (→PostgreSQL SQL) |
Stefan (Diskussion | Beiträge) (→PostgreSQL SQL) |
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Zeile 22: | Zeile 22: | ||
SELECT THE_GEOM ... (END_DATE - NOW() >= '10 DAYS'::INTERVAL) AS GREEN | SELECT THE_GEOM ... (END_DATE - NOW() >= '10 DAYS'::INTERVAL) AS GREEN | ||
AND (END_DATE - NOW() < '0'::INTERVAL) AS RED ... FROM ... | AND (END_DATE - NOW() < '0'::INTERVAL) AS RED ... FROM ... | ||
+ | |||
+ | SELECT THE_GEOM ... | ||
+ | EXTRACT(DAY FROM (END_DATE - NOW()) >= 10) AS GREEN | ||
+ | AND EXTRACT(DAY FROM (END_DATE - NOW()) < 0) AS RED ... FROM ... | ||
== Konfiguration == | == Konfiguration == |
Version vom 3. Dezember 2008, 02:09 Uhr
Siehe auch:
Quickreference
Im Aufbau...
- Start pgsl-Client:
$ psql.exe -h localhost -p 5432 template1 "postgres"
PostgreSQL SQL
Version:
select version();
Problem with date fields (works for < 8.3):
SELECT THE_GEOM ... (END_DATE - NOW() >= 10) AS GREEN AND (END_DATE - NOW() < 0) AS RED ... FROM ...
Casting changes in 8.3:
SELECT THE_GEOM ... (END_DATE - NOW() >= '10 DAYS'::INTERVAL) AS GREEN AND (END_DATE - NOW() < '0'::INTERVAL) AS RED ... FROM ...
SELECT THE_GEOM ... EXTRACT(DAY FROM (END_DATE - NOW()) >= 10) AS GREEN AND EXTRACT(DAY FROM (END_DATE - NOW()) < 0) AS RED ... FROM ...
Konfiguration
Die pg_hba.conf kann so eingestellt werden, dass bei der Ausführung von PostgreSQL-Kommandozeilen-Tools kein Passwort übertragen werden muss.
Bsp mit 127.0.0.1: Anstelle
# IPv4 local connections: host all all 127.0.0.1/32 md5
neu:
# IPv4 local connections: host all all 127.0.0.1/32 trust