I am currently working on a shopping list, where the user can have multiple lists and is able to add different items on the different tables. It is also possible to check those items. Everything works fine, but when I want to delete some of the checked items it throws me an error:
D/Sqflite (10847): [Thread[Sqflite,5,main]] DELETE FROM shoppingTitles
LEFT JOIN shopping ON shoppingTitles.idShopping = shopping.id LEFT
JOIN listTitles ON shoppingTitles.idTitles = listTitles.id WHERE
shopping.checked = 1 AND listTitles.titleName = ? [Einkaufsliste]
E/SQLiteLog(10847): (1) near "LEFT": syntax error
This is my sql query:
DELETE
FROM shoppingTitles
LEFT JOIN shopping ON shoppingTitles.idShopping = shopping.id
LEFT JOIN listTitles ON shoppingTitles.idTitles = listTitles.id
WHERE shopping.checked = 1
AND listTitles.titleName = "Liste"
I hope somebody is able to help me. Thanks in advance XD
FOUND MY SOLUTION BASED ON THE ANSWER provided by Akn
DELETE FROM shoppingTitles
WHERE idShopping IN (
SELECT shoppingTitles.idShopping
FROM shoppingTitles, shopping, listTitles
WHERE shopping.id = shoppingTitles.idShopping
AND shoppingTitles.idTitles = listTitles.id
AND shopping.checked = 1
AND listTitles.titleName = "Liste"
)
Try it like this:
DELETE S
FROM
shoppingTitles S
LEFT JOIN shopping ON S.idShopping = shopping.id
LEFT JOIN listTitles ON S.idTitles = listTitles.id
WHERE
shopping.checked = 1
AND listTitles.titleName = "Liste"
Update:
Guess, there is no support for JOINs within DELETE statements so you better find a way to use SELECT statement.
Below SELECT statement will return an id. If it matches with your myIdShopping, it'll be deleted. I couldn't check/run the code. Hope it works.
DELETE FROM
shoppingTitles
WHERE
myIdShopping IN(
SELECT
shoppingTitles.idShopping
FROM
shoppingTitles
LEFT JOIN shopping ON shoppingTitles.idShopping = shopping.id
LEFT JOIN listTitles ON shoppingTitles.idTitles = listTitles.id
WHERE
shopping.checked = 1
AND listTitles.titleName = "Liste"
)
Related
I'm trying to get a list of ALL user roles for each user through the nopcommerce database. i just need the Customer.Id, Customer.Username, Customer.Email and Customer.Role (some have multiple roles)
This is all jacked up.
SELECT Customer.Id, Customer.Username, Customer.Email, CustomerRole.Name
FROM ((Customer
INNER JOIN CustomerRole ON CustomerRole.Id = Customer.Id)
INNER JOIN Customer_CustomerRole_Mapping ON Customer_CustomerRole_Mapping.CustomerRole_Id = CustomerRole.Id)
Any help is greatly appreciated!
I think you need a LEFT OTUER JOIN because in your DB can be user without role; in this case you can use this:
SELECT DISTINCT CUST.Id, CUST.Username, CUST.Email, CR.Id, CR.Name,
CCRM.CustomerRole_Id ,
FROM CUSTOMER CUST
LEFT OUTER JOIN Customer_CustomerRole_Mapping CCRM
ON CUST.ID = CCRM.Customer_Id
LEFT OUTER JOIN CustomerRole CR
ON CCRM.CustomerRole_Id = CR.Id
Also, you can have only one row per user with a column with his roles, like this:
SELECT DISTINCT CUST.Id, CUST.Username, CUST.Email,
Roles = STUFF((
SELECT ',' + CAST(CR1.Name as varchar(4000))
FROM CustomerRole CR1
LEFT OUTER JOIN Customer_CustomerRole_Mapping CCRM1
ON CCRM1.CustomerRole_Id = CR1.Id
LEFT OUTER JOIN CUSTOMER CUST1
ON CUST1.ID = CCRM1.Customer_Id
WHERE CUST1.Id = CUST.Id
FOR XML PATH('')
), 1, 1, '')
FROM CUSTOMER CUST
LEFT OUTER JOIN Customer_CustomerRole_Mapping CCRM
ON CUST.ID = CCRM.Customer_Id
LEFT OUTER JOIN CustomerRole CR
ON CCRM.CustomerRole_Id = CR.Id
Depending of your using, last query can be a little bit slow if you have a lot of customers.
I am querying the static backend db for a game I play (trying to keep up on my coding), and I am having an issue getting the full results that I want.
So the query that I have so far is:
select ms.security, mc.constellationName, mr.regionName, ms.solarSystemName, count(it.typename) as NumberOfBelts
from mapSolarSystems as ms
join mapConstellations as mc on ms.constellationID == mc.constellationID
join mapRegions as mr on ms.regionID == mr.regionID
join invItems as ii on ii.locationID = ms.solarSystemID
join invTypes as it on it.typeID == ii.typeID
where it.groupID = 9
group by solarSystemName
the problem comes when there are no rows where it.groupID == 9. What I need is for the count to return 0 and I can't for the life of me figure out how to get this to work.
I tried doing left outer join on the final join statement, but no joy.
Change the last join to a left join and set the condition in the on clause istead of the where clause:
select ms.security, mc.constellationName, mr.regionName, ms.solarSystemName, count(it.typename) as NumberOfBelts
from mapSolarSystems as ms
join mapConstellations as mc on ms.constellationID = mc.constellationID
join mapRegions as mr on ms.regionID = mr.regionID
join invItems as ii on ii.locationID = ms.solarSystemID
left join invTypes as it on it.typeID = ii.typeID and it.groupID = 9
group by solarSystemName
I am working on an asp.net application "social networking site".in this i am working on the following tables:-
Friends(ID,User_ID,Friend_ID)
Users(User_ID,User_Name,Full_Name,DOB,Gender)
User_Detail(ID,User_ID,Image,Father_Name,Mother_Name,Location,JobProfile)
Wall(Wall_ID,Wall_Content,TimeAgo,User_ID)
Wall_Comments(Comment_ID,Wall_ID,Comments,Comment_Date,User_ID)
I want to select all records of Tables- Wall and Wall_Comments where User_ID=5 and all friends of User_ID=5
I have done following Sql Query:
SELECT DISTINCT TOP (30) wall.wall_content,
wall.wall_id,
wall.user_id,
wall.timeago,
users.user_name,
users.full_name,
users.user_id AS UID,
wall_comments.comments,
wall_comments.comment_id,
CONVERT(NVARCHAR(1000), user_detail.image, 0) AS Image
FROM friends
INNER JOIN users
ON friends.user_id = users.user_id
INNER JOIN wall
ON users.user_id = wall.user_id
INNER JOIN user_detail
ON users.user_id = user_detail.user_id
left outer join wall_comments
ON wall.wall_id = wall_comments.wall_id
WHERE ( users.user_id IN (SELECT friend_id
FROM friends AS Friends_1
WHERE ( user_id = 5 )) )
UNION
SELECT wall.wall_content,
wall.wall_id,
wall.user_id,
wall.timeago,
users.user_name,
users.full_name,
users.user_id AS UID,
wall_comments.comments,
wall_comments.comment_id,
CONVERT(NVARCHAR(1000), user_detail.image, 0) AS Image
FROM wall
INNER JOIN users
ON wall.user_id = users.user_id
INNER JOIN user_detail
ON users. user_id = user_detail.user_id
left outer join wall_comments
ON wall.wall_id = wall_comments.wall_id
WHERE ( users.user_id = 5 )
ORDER BY wall.wall_id DESC
But it is showing only one record of table wall and Wall_Comments of user_ID-5 it is not showing his friends Wall and their post.and If their is not any comment on any wall then it is not showing.please Help me someone.
Something like this?
select *
from Friends
inner join Wall_Comments On (Wall_Comments.User_ID = Friends.User_ID or Wall_Comments.User_ID = Friends.Friend_ID)
inner join Users On Users.User_ID = Wall_Comments.User_ID
where Friends.User_ID = 5
In Visual Studio 2010 with ASP.NET 4, I am trying to join several tables together to put the results in a gridview and details view with sqldatasource. In the sqldatasource wizard I have chosen to specify a custom SQL statement or stored procedure and then in the Query Builder to define complex queries such as JOINs, I have tried to generate a SQL statement to join the problem table with speficific columns from other tables. But when I try to test the query I get an error message which says "Cannot call methods on varchar". I am new to sql statements so please can you advise on what is wrong with the statement.
Here is the generated sql statement below
SELECT Problem.ProblemID, Problem.CustomerID, Problem.Summary,
Problem.DateLogged, Problem.DateUpdated, Status.Status, Priority.Priority,
Technician.Name, Technician.Surname, [Skill Group].[Skill Group],
HelpdeskOperator.Name AS Expr1,
HelpdeskOperator.Surname AS Expr2, Problem.NoteID, Problem.ResolutionID
FROM Problem
INNER JOIN Status ON Problem.StatusID = Status.Status.StatusID
INNER JOIN HelpdeskOperator ON
Problem.HelpdeskID = HelpdeskOperator.HelpdeskID AND Status.StatusID = HelpdeskOperator.StatusID
INNER JOIN Priority ON Problem.PriorityID = Priority.PriorityID
INNER JOIN [Skill Group] ON Problem.SkillGroupID = [Skill Group].SkillGroupID
INNER JOIN Technician ON Problem.ProblemID = Technician.ProblemID
AND Status.StatusID = Technician.StatusID AND
Priority.PriorityID = Technician.PriorityID
AND [Skill Group].SkillGroupID = Technician.SkillGroupID
Thank you in advance
Fixed your query:
SELECT p.ProblemID, p.CustomerID, p.Summary, p.DateLogged, p.DateUpdated, s.Status, pr.Priority, t.Name, t.Surname,
sg.* , ho.Name AS Expr1, ho.Surname AS Expr2, p.NoteID, p.ResolutionID
FROM Problem p
INNER JOIN Status s ON p.StatusID = s.StatusID
INNER JOIN HelpdeskOperator ho ON p.HelpdeskID = ho.HelpdeskID AND s.StatusID = ho.StatusID
INNER JOIN Priority pr ON p.PriorityID = pr.PriorityID
INNER JOIN [Skill Group] sg ON p.SkillGroupID = sg.SkillGroupID
INNER JOIN Technician t ON p.ProblemID = t.ProblemID AND s.StatusID = t.StatusID AND pr.PriorityID = t.PriorityID
AND sg.SkillGroupID = t.SkillGroupID
You had duplicate table identifier in your join clause Status.Status.StatusID
I doubt that your Skill Group table contains column [Skill Group] so changed it to return all values from Skill Group
I just think those were the errors, if not I will need more info about your query and table structure.
EDIT:
First it did not return anything for HelpdeskOperator, look at our query:
INNER JOIN HelpdeskOperator ho ON p.HelpdeskID = ho.HelpdeskID AND s.StatusID = ho.StatusID
that meanse that here is no such HelpdeskOperator record that is assigned to our problem AND statusid, so either problem id points to noexisting helpdeskoperator or statusid of
this operator is different that problem status id.
next is Skill Group
INNER JOIN [Skill Group] sg ON p.SkillGroupID = sg.SkillGroupID
again our problem point to no existing skill group
then Technican
INNER JOIN Technician t ON p.ProblemID = t.ProblemID AND s.StatusID = t.StatusID AND pr.PriorityID = t.PriorityID
AND sg.SkillGroupID = t.SkillGroupID
here is more work as more checks, technicas must be assigned to our problem with given status and priorityt and be in skill group, BUT our skill group is null? so to check if
there is technican for our problem remove AND sg.SkillGroupID = t.SkillGroupID so you get
INNER JOIN Technician t ON p.ProblemID = t.ProblemID AND s.StatusID = t.StatusID AND pr.PriorityID = t.PriorityID
and see if now we get any technican.
I hope this points you into right direction. You must be sure that there are matching record in every joining table.
Hey guys I hope you can help me I've tried every thing I can think of and it keeps telling me that my syntax near SELECT and that my syntax near AS is incorrect
CREATE PROCEDURE dbo.StoredProcedure2
SELECT
, Announcements.ID
, Announcement.CreateDate
, Announcements.Announcement
,aspnet_Users.UserName
,(SELECT Announcement_Read_State.Read_Date
FROM Announcement_Read_State
WHERE Announcement_Read_State.Announcement_ID = Announcements.ID
AND Announcement_Read_State.User_ID = 2) AS ReadState
FROM Announcements INNER JOIN aspnet_User ON Announcements .Sender_User_ID = aspnet_User.UserName
WHERE (Announcements.ID IN
( SELECT Max(Announcements.ID)
FROM Thread_Participant INNER JOIN Announcements ON
Thread_Participant.ThreadId = Announcements.Announcement_ThreadId
WHERE MessageThreadParticipant.UserID = 2
GROUP BY ThreadParticipant.AnnouncementThreadId
)
ORDER BY Message.CreateDate DESC;
It should be:
CREATE PROCEDURE dbo.StoredProcedure2
AS -- you were missing this
SELECT -- you had an extra comma here
Announcements.ID
, Announcement.CreateDate
, Announcements.Announcement
,aspnet_Users.UserName
,(SELECT Announcement_Read_State.Read_Date
FROM Announcement_Read_State
WHERE Announcement_Read_State.Announcement_ID = Announcements.ID
AND Announcement_Read_State.User_ID = 2) AS ReadState
FROM Announcements INNER JOIN aspnet_User ON Announcements .Sender_User_ID = aspnet_User.UserName
WHERE (Announcements.ID IN
( SELECT Max(Announcements.ID)
FROM Thread_Participant INNER JOIN Announcements ON
Thread_Participant.ThreadId = Announcements.Announcement_ThreadId
WHERE MessageThreadParticipant.UserID = 2
GROUP BY ThreadParticipant.AnnouncementThreadId
)
)-- you were missing this one
ORDER BY Message.CreateDate DESC;