Error in making left outer join to a nested query

Question

i am writing this query getting error here i am using nested query with that i am making join it is giving error
SQL
SELECT
* FROM IVItem INNER JOIN
IVPackSize_Mst ON IVItem.PackSizeID = IVPackSize_Mst.Id
left outer join IvItemGenericLink on IvItemGenericLink.itemID=IVItem.Id
Select GenericId from
IvItemGenericLink where ItemID=IVItem.Id and rownum <=1
)x
and x on IvItemGenericLink.GenericId=x.GenericId;
Error report:
SQL Error: ORA-00936: missing expression
00936. 00000 - "missing expression"
*Cause:   
*Action:
give me and suggestion

Answer 1

i am using left outer join at virtual table say x your gave me its equivalent
EXISTS (SELECT 1 FROM IvItemGenericLink G
WHERE G.ITEMID =V.ID
AND G.GenericId = L.GenericId)-----its i guess inner join
i am not confirmed that why iam asking this i guess i have to use this
as i use keyword inner join for inner join and for left join i use
left outer join
EXISTS (SELECT 1 FROM IvItemGenericLink G
WHERE G.ITEMID =V.ID
AND G.GenericId(+) = L.GenericId)-----its i guess left outer join
left outer join
Select GenericId from
IvItemGenericLink where ItemID=IVItem.Id and rownum <=1
)*x*
IvItemGenericLink.GenericId=x.GenericId
-------------------Statement U Gave in this--------------------------------------------------------------------------
SELECT *
FROM IVITEM V, IVPACKSIZE_MST M , IVITEMGENERICLINK L,
WHERE V.PACKSIZEID = M.ID
AND V.ID = L.ITEMID (+)
AND EXISTS (SELECT 1 FROM IvItemGenericLink G
WHERE G.ITEMID =V.ID
AND G.GenericId = L.GenericId)
-------------------Statement U Gave in this--------------------------------------------------------------------------
is this equivalent to left outer join
*AND EXISTS (
SELECT 1 FROM IvItemGenericLink G*
WHERE G.ITEMID =V.ID
*AND G.GenericId = L.GenericId
please tell me this in this regard