SQL left joining multiple tables on multiple fields - sql

Question

MS SQL Server.
I have 10 tables (table1, table2, table3,etc..) and I want to left join them and get a few fields from each table. Some tables need to be left joined on multiple fields, e.g. table1 and table2 need to be left joined on 3 fields.
Here is a sample from the script I tried to use but I get errors (I masked the real tables and fields name):
SELECT table1.[Field1],
table1.[Field2],
table1.[Field3],
table1.[Field5],
table2.[Field1],
table2.[Field2],
table2.[Field3],
table3.[Field4],
table4.[Field1],
table4.[Field4],
table4.[Field5],
table5.[Field4],
FROM table2
LEFT JOIN table1 As a
on a.[Field1] = table2.[Field1]
LEFT JOIN table1 As b
on b.[Field3] = table2.[Field3]
LEFT JOIN table1 As c
on c.[Field2] = table2.[Field2]
LEFT JOIN table4 As d
on table1.[Field5] = d.[Field4]
LEFT JOIN table4 As e
on table1.[Field1] = e.[Field1]
LEFT JOIN table5
on table4.[Field4] = table5.[Field4]
LEFT JOIN table3
on table4.[Field4] = table3.[Field4];
Any "simple" way to do that?

Answer 1

Try This query .it may help you
SELECT table1.[Field1],
table1.[Field2],
table1.[Field3],
table1.[Field5],
table2.[Field1],
table2.[Field2],
table2.[Field3],
table3.[Field4],
table4.[Field4],
table4.[Field5],
table5.[Field4],
FROM table2
LEFT JOIN table1 As a on a.[Field1] = table2.[Field1]
and a.[Field3] = table2.[Field3]
and a.[Field2] = table2.[Field2]
LEFT JOIN table4 As d on table1.[Field5] = d.[Field4]
and table1.[Field1] = d.[Field1]
LEFT JOIN table5 on d.[Field4] = table5.[Field4]
LEFT JOIN table3 on d.[Field4] = table3.[Field4];

Answer 2

use NORTHWND;
go
select Orders.OrderID,Employees.EmployeeID,Employees.FirstName + ' ' +Employees.LastName as "Full Name",Customers.CompanyName as "Customer Company Name",Customers.ContactName as "Customers Contact Name",
RegionDescription,Products.ProductName,[Order Details].UnitPrice, Suppliers.CompanyName as "Supplier Company Name"
from Orders
left join Customers
on Orders.CustomerID=Customers.CustomerID
left join Employees
on Orders.EmployeeID=Employees.EmployeeID
left join EmployeeTerritories
on Employees.EmployeeID=EmployeeTerritories.EmployeeID
join Territories
on Territories.TerritoryID=EmployeeTerritories.TerritoryID
join Region
on region.RegionID=Territories.RegionID
join [Order Details]
on [Order Details].OrderID=Orders.OrderID
join Products
on Products.ProductID=[Order Details].ProductID
join Categories
on Categories.CategoryID=Products.CategoryID
join Suppliers
on Suppliers.SupplierID=products.SupplierID
where categories.CategoryID=1;