I have 2 tables :
albums (idalbum, idauthor, idcompositor, idfeat)
people (id, firstname, last name)
My current Query :
SELECT * FROM albums where idalbum=:id
INNER JOIN people ON albums.idauthor = people.id
INNER JOIN people ON albums.idcompositor = people.id
INNER JOIN people ON albums.idfeat = people.id
What I want to do with my query :
[Album], [Author[First Name, Last Name]], [Compositor[First Name, Last Name]], [Feat[First Name, Last Name]]
My problem:
I have an error : SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax;
You need to correct your query where clause should be used after your join statements and also you are not using proper table names, according to structure shown in question you can write your query as
SELECT * FROM albums a
INNER JOIN people p ON a.idauthor = p.id
INNER JOIN people p1 ON a.idcompositor = p1.id
INNER JOIN people p2 ON a.idfeat = p2.id
where a.idalbum=:id
Related
There are three tables in the database users, organization_entries and user_invoices and I am trying to Join these three tables and my query is somewhat like this
select users.id , sum(user_invoices.due_amount) , organization_entries.id, organization_entries.createdAt from users INNER JOIN user_invoices ON users.id = user_invoices.customer_id INNER JOIN on users.id = organization_entries.user_id GROUP BY users.id ORDER BY organization_entries.createdAt;
But again and again, I am getting this error -
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'on users.id = organization_entries.user_id GROUP BY users.id ORDER BY organiza' at line 1
I am not able to understand where I am doing things wrong.
Update the query as follows, you are missing table in second inner join
select users.id , sum(user_invoices.due_amount) , organization_entries.id,
organization_entries.createdAt
from users INNER JOIN user_invoices ON users.id = user_invoices.customer_id
INNER JOIN organization_entries ON users.id = organization_entries.user_id
GROUP BY users.id ORDER BY organization_entries.createdAt ;
I've got the following SQL query and I'm trying to implement pagination, so I first want to get the COUNT of the result:
The normal query (works fine)
SELECT DISTINCT c.*, p1.*, username FROM candidate c
LEFT JOIN note p1 ON (c.candID = p1.candidateID)
LEFT JOIN user ON p1.userID = user.id
LEFT OUTER JOIN note p2 ON
(c.candID = p2.candidateID AND (p1.noteID < p2.noteID))
WHERE p2.candidateID IS NULL ORDER BY c.firstname ASC
I've tried the following, but it throws an error and I'm not sure what correct syntax to use:
Attempting to count the results (doesn't work)
SELECT COUNT(DISTINCT c.*, p1.*, username) FROM candidate c
LEFT JOIN note p1 ON (c.candID = p1.candidateID)
LEFT JOIN user ON p1.userID = user.id
LEFT OUTER JOIN note p2 ON
(c.candID = p2.candidateID AND (p1.noteID < p2.noteID))
WHERE p2.candidateID IS NULL ORDER BY c.firstname ASC
The error:
Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ', p1., username) FROM candidate c LEFT ' at line 1
One option is to use a subquery:
SELECT COUNT(*)
FROM (
SELECT DISTINCT c.*, p1.*, username FROM candidate c
LEFT JOIN note p1 ON (c.candID = p1.candidateID)
LEFT JOIN user ON p1.userID = user.id
LEFT OUTER JOIN note p2 ON
(c.candID = p2.candidateID AND (p1.noteID < p2.noteID))
WHERE p2.candidateID IS NULL
) t
Depending on your data, you may be able to do this without the subquery, but you cannot use multiple columns with the count aggregate -- that's what is causing your error.
Basically I'm just unsure as to why this query is failing to execute:
(SELECT replies.reply_post, replies.reply_content, replies.reply_date AS d, members.username
FROM (replies) AS a
INNER JOIN members ON replies.reply_by = members.id)
UNION
(SELECT posts.post_id, posts.post_title, posts.post_date AS d, members.username
FROM (posts) as b
WHERE posts.post_set = 0
INNER JOIN members ON posts.post_by = members.id)
ORDER BY d DESC LIMIT 5
I'm getting this error:
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use
near 'a INNER JOIN members ON replies.re' at line 2
All I'm trying to do is select the 5 most recent rows (dates) from these two tables. I've tried Join, union etc and I've seen numerous queries where people have put another query after the FROM statement and that just makes no logical sense to me as to how that works?
Am I safe to say that you can join the same table from two different but joined queries? Or am I taking completely the wrong approach, because frankly I can't seem see how this query is failing despite reading the error message.
(The two queries on there own work fine)
I think there is syntax error in your query at below part :
FROM (posts) as b
WHERE posts.post_set = 0
INNER JOIN members ON posts.post_by = members.id)
Inner join should come first before where condition. Also your join conditions are wrong. You need to apply conditions like
INNER JOIN members ON a.reply_by = members.id)
INNER JOIN members ON b.post_by = members.id)
So your query should be like this
(SELECT a.reply_post, a.reply_content, a.reply_date AS d, members.username
FROM (replies) AS a
INNER JOIN members ON a.reply_by = members.id)
UNION
(SELECT b.post_id, b.post_title, b.post_date AS d, members.username
FROM (posts) as b
INNER JOIN members ON b.post_by = members.id
WHERE b.post_set = 0)
ORDER BY d DESC LIMIT 5
Try this:
(SELECT a.reply_post, a.reply_content, a.reply_date AS d, members.username
FROM replies AS a
INNER JOIN members ON a.reply_by = members.id)
UNION
(SELECT b.post_id, b.post_title, b.post_date AS d, members.username
FROM posts as b
INNER JOIN members ON b.post_by = members.id
WHERE b.post_set = 0) /* Use where condition after matching Id's using ON */
ORDER BY d DESC LIMIT 5
I have been trying to join two tables (USERS AND USERS_ROLES) based on their role id I put the left join on following query
users.id = users_roles.fk_user_id
but the output is not correct of users_roles.fk_role_id coulmun and shows NULL where it should display the id of users.id = users_roles.fk_user_id that is 4 (at most places) because on users.id = users_roles.fk_user_id the value of users_roles.fk_role_id = 4
Kindly let me know how can i fix that so my query should result the exact vlaues of ids where they match,
Thanks
SELECT users.id, users.v_first_name, users.v_last_name, user_facility.fk_facility_id,users.fk_tenant_id, marital_status.v_marital_status,
users.v_blood_type, NOW(),users_roles.fk_role_id
FROM users
LEFT JOIN (user_facility, marital_status, users_roles) ON
users.id = user_facility.fk_user_id AND users.fk_marital_status_id=marital_status.id AND users.id = users_roles.fk_user_id
Usage of AND operator when used with Left or Right join gives different result. You should be clear what you are trying to accomplish..See this
well it is what you get by first implicitly inner-joining 3 tables and then explicitly left-joining the result to a 4th table only if 3 conditions relevant to all of the 3 inner-joinded tables are matched (i.e. when 3rd condition is false, nothing is joined from either of the 2 remaining tables)
i strongly suggest not to combine implicit and explicit joins, i personally use explicit joins all the time:
if you need an outer join:
SELECT ...
FROM users
LEFT JOIN user_facility ON users.id = user_facility.fk_user_id
LEFT JOIN marital_status ON users.fk_marital_status_id=marital_status.id
LEFT JOIN users_roles ON users.id = users_roles.fk_user_id
if you need an inner join:
SELECT ...
FROM users
JOIN user_facility ON users.id = user_facility.fk_user_id
JOIN marital_status ON users.fk_marital_status_id=marital_status.id
JOIN users_roles ON users.id = users_roles.fk_user_id
or if you prefere implicit inner joins for some obscure reason:
SELECT ...
FROM users,
user_facility,
marital_status,
users_roles
WHERE users.id = user_facility.fk_user_id
AND users.fk_marital_status_id=marital_status.id
AND users.id = users_roles.fk_user_id
(implicit outer joins are getting deprecated in all RDBMS as far as i know)
When it shows NULL it means there isn't a correspondency (relation) between all tables in the JOIN clause.
If you want to show only the ones that have relations in all tables, use INNER JOIN instead.
SELECT u.id,
u.v_first_name,
u.v_last_name,
uf.fk_facility_id,
u.fk_tenant_id,
ms.v_marital_status,
u.v_blood_type,
NOW(),
ur.fk_role_id
FROM users u
INNER JOIN user_facility uf ON u.id = uf.fk_user_id
INNER JOIN marital_status ms ON u.fk_marital_status_id=ms.id
INNER JOIN users_roles ur ON u.id = ur.fk_user_id
I get the error ERROR 1066 (42000): Not unique table/alias:
I cant figure out whats wrong with it.
SELECT Project_Assigned.ProjectID, Project_Title, Account.Account_ID, Username, Access_Type
FROM Project_Assigned
JOIN Account
ON Project_Assigned.AccountID = Account.Account_ID
JOIN Project
ON Project_Assigned.ProjectID = Project.Project_ID
where Access_Type = 'Client';
Your query contains columns which could be present with the same name in more than one table you are referencing, hence the not unique error. It's best if you make the references explicit and/or use table aliases when joining.
Try
SELECT pa.ProjectID, p.Project_Title, a.Account_ID, a.Username, a.Access_Type, c.First_Name, c.Last_Name
FROM Project_Assigned pa
INNER JOIN Account a
ON pa.AccountID = a.Account_ID
INNER JOIN Project p
ON pa.ProjectID = p.Project_ID
INNER JOIN Clients c
ON a.Account_ID = c.Account_ID
WHERE a.Access_Type = 'Client';
select persons.personsid,name,info.id,address
-> from persons
-> inner join persons on info.infoid = info.info.id;
I had this error, and the cause was an incorrect string concatenation. I was joining two sql string and forgot to put a space between them.