I am having trouble with a SQL query that corresponds to multiple different tables. I have written the following code, but it seems to combine every single booking with every invoice rather than finding the specific invoice that matches a specific booking. Any help would be greatly appreciated.
$sql = "SELECT INVOICE.invoice_id,
g.guest_first_name,
g.guest_last_name,
g.booking_num_guests,
g.booking_num_nights,
CURRENCY.currency_name,
INVOICE.invoice_nightly_rate,
INVOICE.invoice_deposit_amount,
INVOICE.invoice_paid,
ACCOUNT.account_name
FROM INVOICE
INNER JOIN BOOKING
ON INVOICE.invoice_booking_id = BOOKING.booking_id
INNER JOIN CURRENCY
ON INVOICE.invoice_currency_id = CURRENCY.currency_id
INNER JOIN ACCOUNT
ON INVOICE.invoice_account_id = ACCOUNT.account_id
INNER JOIN (
SELECT GUEST.guest_first_name,
GUEST.guest_last_name,
BOOKING.booking_num_guests,
BOOKING.booking_num_nights
FROM BOOKING
INNER JOIN GUEST
ON BOOKING.booking_guest_id = GUEST.guest_id) g
ON INVOICE.invoice_booking_id = BOOKING.booking_id";
Since you already joined INVOICE and BOOKING table in the first inner join, the last inner join should be between BOOKING and GUEST table. Change your query to below
$sql = "SELECT
INVOICE.invoice_id,
GUEST.guest_first_name,
GUEST.guest_last_name,
BOOKING.booking_num_guests,
BOOKING.booking_num_nights,
CURRENCY.currency_name,
INVOICE.invoice_nightly_rate,
INVOICE.invoice_deposit_amount,
INVOICE.invoice_paid,
ACCOUNT.account_name
FROM INVOICE
INNER JOIN BOOKING
ON INVOICE.invoice_booking_id = BOOKING.booking_id
INNER JOIN CURRENCY
ON INVOICE.invoice_currency_id = CURRENCY.currency_id
INNER JOIN ACCOUNT
ON INVOICE.invoice_account_id = ACCOUNT.account_id
INNER JOIN GUEST
ON BOOKING.booking_guest_id = GUEST.guest_id";
Related
I have the following tables
Invoice
Organization
Customer
I'm trying to conditionally join these tables by the following condition: If PTypecd = 'I' then data come from the Customer table And if Ptypecd = 'O' then data come from the Organization table into the Invoice table.
the query i tried so far:
Select
I.PCD, I.PtypeCD,
From
Invoice I
Left Join
Customer C ON I.PCD = C.CustomerCD
Left Join
Organization O ON I>PDC = O.Organization
How does this condition be used in Join?
Here's a query that joins two tables conditionally, in your case you need to join the Customer table when the PTypecd of Invoice is 1 so add another condition for joint statement AND I.PTypecd = 1, and it the other join you need to check wither I.PTypecd = 0 and that will let you join the other table Organization
SELECT I.PCD, I.PtypeCD
FROM Invoice I
LEFT JOIN Customer a ON a.CustomerCD = i.PDC AND I.PTypecd = 1
LEFT JOIN Organization b ON b.Organization = i.PDC AND i.PTypecd = 0;
I have a rather complex (well for me) sql query happening and I am having trouble with some concepts.
I have the following sql on a webpage that i am building
SELECT
[dbo].[Enrolment].[_identity], [dbo].[Enrolment].CommencementDate,
[dbo].[Enrolment].CompletionDate, [dbo].[Enrolment].enrolmentDate,
[dbo].[Course].name coursename, [dbo].[Course].Identifier as QUALcode,
[dbo].[Person].givenName, [dbo].[Person].Surname,[dbo].[Employer].name as empname,
[dbo].[Employer].Address1,[dbo].[Employer].Suburb,[dbo].[Employer].Phone,
[dbo].[Employer].PostCode,[dbo].[EnrolmentStatus].name as enrolname,
[dbo].[Student].identifier,[dbo].[Student].person,[dbo].[Contact].person as CONTACTid
FROM
(((([dbo].[Enrolment]
LEFT JOIN
[dbo].[Course] ON [dbo].[Enrolment].course = [dbo].[Course].[_identity])
LEFT JOIN
[dbo].[Employer] ON [dbo].[Enrolment].employer = [dbo].[Employer].[_identity])
LEFT JOIN
[dbo].[EnrolmentStatus] ON [dbo].[Enrolment].status = [dbo].[EnrolmentStatus].[_identity])
LEFT JOIN
[dbo].[Student] ON [dbo].[Enrolment].student = [dbo].[Student].[_identity])
LEFT JOIN
[dbo].[Person] ON [dbo].[Student].person = [dbo].[Person].[_identity]
LEFT JOIN
[dbo].[Contact] ON [dbo].[Employer].[_identity] = [dbo].[Contact].employer
WHERE
(([dbo].[EnrolmentStatus].name) = 'training'
OR
([dbo].[EnrolmentStatus].name) = 'enrolled')
This is working fine but what I would like to do is join to the [dbo].[Person] table again but this time joining from another table so the code I effectively need to patch into the above statement is
LEFT JOIN
[dbo].[Trainer] ON [dbo].[Enrolment].Trainer = [dbo].[Trainer].[_identity])
LEFT JOIN
[dbo].[Person] ON [dbo].[Trainer].person = [dbo].[Person].[_identity]
I then need to be able to get from the person table the name of the student and the name of the trainer, so I need 2 records from the person table for every record from the Enrolment table, the fields I need from the person table are the same for both trainer and student in that I am trying to get the given name and surname for both.
Any help or pointers would be most appreciated.
You have to just use replace your from clause with this. You have to just first use the Trainer table join, then Person table, then use the AND keyword to use multiple mapping with single table
FROM (((([dbo].[Enrolment]
LEFT JOIN [dbo].[Course] ON [dbo].[Enrolment].course = [dbo].[Course].[_identity])
LEFT JOIN [dbo].[Employer] ON [dbo].[Enrolment].employer = [dbo].[Employer].[_identity])
LEFT JOIN [dbo].[EnrolmentStatus] ON [dbo].[Enrolment].status = [dbo].[EnrolmentStatus].[_identity])
LEFT JOIN [dbo].[Student] ON [dbo].[Enrolment].student = [dbo].[Student].[_identity])
LEFT JOIN [dbo].[Trainer] ON [dbo].[Enrolment].Trainer = [dbo].[Trainer].[_identity])
LEFT JOIN [dbo].[Person] ON [dbo].[Student].person = [dbo].[Person].[_identity]
AND [dbo].[Trainer].person = [dbo].[Person].[_identity]
LEFT JOIN [dbo].[Contact] ON [dbo].[Employer].[_identity] = [dbo].[Contact].employer
Use aliasing like this..
LEFT JOIN [dbo].[Trainer] ON [dbo].[Enrolment].Trainer = [dbo].[Trainer].[_identity])
LEFT JOIN [dbo].[Person] AS p ON [dbo].[Trainer].person = p.[_identity]
If I get your question right - what you are trying to do is to join the same table twice in your SQL. You have one table Person which has both student and trainer information and you want to see their details side by side in your result set. So you need to join Person once with Student and another time with Trainer
To do this - you will have to join Person table together. Give your tables an alias like the other answers have suggested. Then your FROM clause can look like this -
FROM (((([dbo].[Enrolment]
LEFT JOIN [dbo].[Course] ON [dbo].[Enrolment].course = [dbo].[Course].[_identity])
LEFT JOIN [dbo].[Employer] ON [dbo].[Enrolment].employer = [dbo].[Employer].[_identity])
LEFT JOIN [dbo].[EnrolmentStatus] ON [dbo].[Enrolment].status = [dbo].[EnrolmentStatus].[_identity])
LEFT JOIN [dbo].[Student] ON [dbo].[Enrolment].student = [dbo].[Student].[_identity])
LEFT JOIN [dbo].[Person] P1 ON [dbo].[Student].person = P1.[_identity]
LEFT JOIN [dbo].[Contact] ON [dbo].[Employer].[_identity] = [dbo].[Contact].employer
LEFT JOIN [dbo].[Trainer] ON [dbo].[Enrolment].Trainer = [dbo].[Trainer].[_identity])
LEFT JOIN [dbo].[Person] P2 ON [dbo].[Trainer].person = P2.[_identity]
....
....
Here P1 and P2 are two aliases for [Person]
This problem has puzzled me a while and I hope there are some wiz that could help solve this problem. I have a product table with three level of categories (three tables). I'm trying to list all products that is connected to the last level(third level) of the categories. When running the query below ALL products in the product table is listed.
Here is the SQL query.
SELECT *
FROM Product
INNER JOIN Product_Category
ON Product.ProductCategoryID = Product_Category.ProductCategoryID
INNER JOIN Product_Sub_Category
ON Product_Category.ProductCategoryID = Product_Sub_Category.ProductCategoryID
INNER JOIN Product_Sub_Sub_Category
ON Product_Sub_Category.ProductSubCategoryID = Product_Sub_Sub_Category.ProductSubCategoryID
WHERE Product_Sub_Sub_Category.ProductSubSCategoryID = request.querystring
You need to join on SubCategoryId on the second level and SubSubCategoryId on the third level
SELECT *
FROM
Product
INNER JOIN Product_Category ON (Product.ProductCategoryID = Product_Category.ProductCategoryID)
INNER JOIN Product_Sub_Category ON (Product_Category.ProductSubCategoryID = Product_Sub_Category.ProductSubCategoryID)
INNER JOIN Product_Sub_Sub_Category ON (Product_Sub_Category.ProductSubSubCategoryID = Product_Sub_Sub_Category.ProductSubSubCategoryID)
WHERE
Product_Sub_Sub_Category.ProductSubSubCategoryID = (request.querystring)
I am working in Oracle APEX. I want to make a report from three different tables (Patient, History, Treatment) through INNER JOIN . Tables are as fallows.
PATIENT (Par_Id(Pk),Pat_Name,Pat_Gender)
HISTORY (His_Id(Pk),Pat_id(Fk),Treated_By)
and
Treatment (
Treat_Id,
His_id(Fk),Pat_id(Fk)
,Treat_Type
,Charges)
How I am going to display all the mentioned columns of the three Tables in
the report.
Thanks.
You should always specify the columns to return, especially as the tables contain identical column names
SELECT p.Par_Id, p.Pat_Name, p.Pat_Gender,
h.His_Id, h.Treated_By,
t.Treat_Id, t.Treat_Type, t.Charges
FROM Patient p
INNER JOIN History h
ON p.PAR_ID = h.PAT_ID
INNER JOIN Treatment t
ON h.HIS_ID = t.HIS_ID AND p.PAR_ID = h.PAT_ID
This should do the trick
SELECT * FROM Patient p
INNER JOIN History h
ON p.PAR_ID = h.PAT_ID
INNER JOIN Treatment t
ON h.HIS_ID = t.HIS_ID AND p.PAR_ID = h.PAT_ID
Try this
Select * from
PATIENT inner join HISTORY on par_id=HISTORY.Pat_id
inner join Treatment on par_id=Treatment.Pat_id
It is too simple in mysql
SELECT
*
FROM PATIENT as p
LEFT JOIN HISTORY as h ON h.Pat_id = p.Pat_Id
LEFT JOIN Treatment as t ON t.His_id = h.His_Id
I'm trying to join multiple tables together for building a report. The report lists a course, revisions made to it, and who requested, made and approved the revisions.
Under requested, made an approved, the values are employee numbers. I'm trying to join my innerjoined table above, with the Employee table so I can list the names (not just employee numbers) of those that requested, made and approved revisions.
This is what I have which I know is totally wrong.
SELECT *
FROM Courses
INNER JOIN CourseRevisions ON CourseRevisions.PELID = Courses.PELID
INNER JOIN CourseGroups ON CourseGroups.CourseGroupID = Courses.CourseGroupID
INNER JOIN [dbo].[OPG_Employees] ON OPG_Employees.EmployeeID = CourseRevisions.UpdatedBy
AND OPG_Employees.EmployeeID = CourseRevisions.ApprovedBy
AND OPG_Employees.EmployeeID = CourseRevisions.RequestedBy
This only returns a single result which just happens to have the same employee ID listed for all 3 (Requested, Approved and Updated)
How would i get it so I can get the table result for individual employees in each?
You have to join to the OPG_Employees table once for each field, i.e. 3 times in the example above. One INNER JOIN to it for UpdatedBy, one INNER JOIN for ApprovedBy, one INNER JOIN for RequestedBy.
Something like so:
SELECT *
FROM Courses
INNER JOIN CourseRevisions ON CourseRevisions.PELID = Courses.PELID
INNER JOIN CourseGroups ON CourseGroups.CourseGroupID = Courses.CourseGroupID
INNER JOIN [dbo].[OPG_Employees] empUpdatedBy ON empUpdatedBy.EmployeeID = CourseRevisions.UpdatedBy
INNER JOIN [dbo].[OPG_Employees] empApprovedBy ON empApprovedBy.EmployeeID = CourseRevisions.ApprovedBy
INNER JOIN [dbo].[OPG_Employees] empRequestedBy ON empRequestedBy.EmployeeID = CourseRevisions.RequestedBy
You need a separate join for each employee being referenced:
SELECT *
FROM Courses INNER JOIN
CourseRevisions
ON CourseRevisions.PELID = Courses.PELID INNER JOIN
CourseGroups
ON CourseGroups.CourseGroupID = Courses.CourseGroupID INNER JOIN
[dbo].[OPG_Employees] UpdateEmp
ON UpdateEmp.EmployeeID = CourseRevisions.UpdatedBy INNER JOIN
[dbo].[OPG_Employees] ApprovedEmp
on OPG_ApprovedEmp.EmployeeID = CourseRevisions.ApprovedBy INNER JOIN
[dbo].[OPG_Employees] RequestedEmp
on RequestedEmp.EmployeeID = CourseRevisions.RequestedBy
Your original formulation required that all three ids be exactly the same.