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SQL inner join: ORA-00904: "Bonus.site_name": invalid identifier?


SQL inner join: ORA-00904: "Bonus.site_name": invalid identifier?

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fish2884
fish2884
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SELECT *
FROM "Poker_Site" INNER JOIN "Bonus"
ON "Poker_Site.site_name" = "Bonus.site_name";

Whats wrong with this select query/ I have tried removing the quotes.

Bonus
bonus_name   NVARCHAR2   200    -    -   No
sign_up_bouns   NVARCHAR2   100    -    -   Yes
rake_back   NUMBER   22   10   0   Yes
site_name   NVARCHAR2   100    -    -   Yes

Poker Site
site_name   NVARCHAR2   100    -    -   No
site_start   DATE   7    -    -   No
coutry_origin   VARCHAR2   70    -    -   Yes
Description   VARCHAR2   500    -    -   Yes
Lowell
Lowell
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In Oracle, Each Object can have double quotes. that means the table can have quotes, and it's column names can have quotes...but you can't wrap them all in-one..they each get their own.


so "Bonus"."site_name" is correct, but "Bonus.site_name" is not...it implies a single object that happens to have a period in it's name.

--Oracle

SELECT *
FROM "Poker_Site" INNER JOIN "Bonus"
ON "Poker_Site"."site_name" = "Bonus"."site_name";


--SQL equivilent
SELECT *
FROM [Poker_Site] INNER JOIN [Bonus]
ON [Poker_Site].[site_name] = [Bonus].[site_name];



Lowell

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