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Query using 3 tables

Author

Topic

SpiderPig
Starting Member

3 Posts

Posted - 2011-01-19 : 12:09:46

Hi,

I'm trying to combine results from 3 different tables in one query. However, my SQL knowledge isn't
great (I'm a gameplay programmer), so I'm struggling to get it working without horrible nested SELECTs and whatnot :-).
The 3 tables are defined below:

Achievement.AchievementID PK
Achievement.StringID FK
Achievement.Points
Achievement.IsHidden
Achievement.IconLockedID FK
Achievement.IconUnlockedID FK

AchievementStringsEN.StringID PK
AchievementStringsEN.NameStr
AchievementStringsEN.DescLockedStr
AchievementStringsEN.DescUnlockedStr

AchievementIcons.IconID PK
AchievementIcons.IconName

I would like to get the following information from a single query, for a supplied Achievement.AchievementID:

Achievement.AchievementID
AchievementStringsEN.NameStr
AchievementStringsEN.DescLockedStr
AchievementStringsEN.DescUnlockedStr
Achievement.Points
Achievement.IsHidden
AchievementIcons.IconName <-- Locked Icon Name
AchievementIcons.IconName <-- Unlocked Icon Name

I've tried to do this using INNER JOINS, but I'm not familiar enough with the syntax to get it working.

Any help would be greatly appreciated!

Thanks,

Johan Sylwander

webfred
Master Smack Fu Yak Hacker

8781 Posts

Posted - 2011-01-19 : 12:27:04

select
a.AchievementID
s.NameStr
s.DescLockedStr
s.DescUnlockedStr
a.Points
a.IsHidden
locked.IconName <-- Locked Icon Name
unlocked.IconName <-- Unlocked Icon Name
from Achievement a
left join AchievementStringsEN s on s.StringID = a.StringID
left join AchievementIcons locked on locked.IconID = a.IconLockedID
left join AchievementIcons unlocked on unlocked.IconID = a.IconUnlockedID

No, you're never too old to Yak'n'Roll if you're too young to die.