How to use SQL join correctly?
I'm using the AdventureWorks database to do some SQL exercices.
I'm trying to transform my code into using the Join statement, but I cannot seem do to it correctly.
This is my code that I originally made to display the custumer name, product name, sales amount as well as quantity and the year when It was bought:
SELECT FirstName, LastName, EnglishProductName, ProductAlternateKey,
SUM(SalesAmount) as sales, sum(OrderQuantity) as Qty, CalendarYear
FROM [AdventureWorksDW2017].[dbo].[FactInternetSales],
[AdventureWorksDW2017].[dbo].[DimProduct],
[AdventureWorksDW2017].[dbo].[DimCustomer],
[AdventureWorksDW2017].[dbo].[DimDate]
WHERE FirstName = 'Julia' And LastName = 'Wright' or
FirstName = 'Cedric' And LastName = 'Ma' or
FirstName = 'David' and LastName = 'Rodriguez'
GROUP BY FirstName, LastName, EnglishProductName, ProductAlternateKey, CalendarYear
ORDER BY CalendarYear DESC, FirstName ASC, LastName
sql sql-server tsql
add a comment |
I'm using the AdventureWorks database to do some SQL exercices.
I'm trying to transform my code into using the Join statement, but I cannot seem do to it correctly.
This is my code that I originally made to display the custumer name, product name, sales amount as well as quantity and the year when It was bought:
SELECT FirstName, LastName, EnglishProductName, ProductAlternateKey,
SUM(SalesAmount) as sales, sum(OrderQuantity) as Qty, CalendarYear
FROM [AdventureWorksDW2017].[dbo].[FactInternetSales],
[AdventureWorksDW2017].[dbo].[DimProduct],
[AdventureWorksDW2017].[dbo].[DimCustomer],
[AdventureWorksDW2017].[dbo].[DimDate]
WHERE FirstName = 'Julia' And LastName = 'Wright' or
FirstName = 'Cedric' And LastName = 'Ma' or
FirstName = 'David' and LastName = 'Rodriguez'
GROUP BY FirstName, LastName, EnglishProductName, ProductAlternateKey, CalendarYear
ORDER BY CalendarYear DESC, FirstName ASC, LastName
sql sql-server tsql
2
If you want to practice joins, you should use thejoin
keyword. Comma separated join style is out of date (by about 30-odd years). Also, you forgot to ask a question.
– HoneyBadger
Nov 22 '18 at 12:32
Note:JOIN
is an operator, not a statement.
– joop
Nov 22 '18 at 12:32
add a comment |
I'm using the AdventureWorks database to do some SQL exercices.
I'm trying to transform my code into using the Join statement, but I cannot seem do to it correctly.
This is my code that I originally made to display the custumer name, product name, sales amount as well as quantity and the year when It was bought:
SELECT FirstName, LastName, EnglishProductName, ProductAlternateKey,
SUM(SalesAmount) as sales, sum(OrderQuantity) as Qty, CalendarYear
FROM [AdventureWorksDW2017].[dbo].[FactInternetSales],
[AdventureWorksDW2017].[dbo].[DimProduct],
[AdventureWorksDW2017].[dbo].[DimCustomer],
[AdventureWorksDW2017].[dbo].[DimDate]
WHERE FirstName = 'Julia' And LastName = 'Wright' or
FirstName = 'Cedric' And LastName = 'Ma' or
FirstName = 'David' and LastName = 'Rodriguez'
GROUP BY FirstName, LastName, EnglishProductName, ProductAlternateKey, CalendarYear
ORDER BY CalendarYear DESC, FirstName ASC, LastName
sql sql-server tsql
I'm using the AdventureWorks database to do some SQL exercices.
I'm trying to transform my code into using the Join statement, but I cannot seem do to it correctly.
This is my code that I originally made to display the custumer name, product name, sales amount as well as quantity and the year when It was bought:
SELECT FirstName, LastName, EnglishProductName, ProductAlternateKey,
SUM(SalesAmount) as sales, sum(OrderQuantity) as Qty, CalendarYear
FROM [AdventureWorksDW2017].[dbo].[FactInternetSales],
[AdventureWorksDW2017].[dbo].[DimProduct],
[AdventureWorksDW2017].[dbo].[DimCustomer],
[AdventureWorksDW2017].[dbo].[DimDate]
WHERE FirstName = 'Julia' And LastName = 'Wright' or
FirstName = 'Cedric' And LastName = 'Ma' or
FirstName = 'David' and LastName = 'Rodriguez'
GROUP BY FirstName, LastName, EnglishProductName, ProductAlternateKey, CalendarYear
ORDER BY CalendarYear DESC, FirstName ASC, LastName
sql sql-server tsql
sql sql-server tsql
edited Nov 22 '18 at 13:20
a_horse_with_no_name
296k46451546
296k46451546
asked Nov 22 '18 at 12:27
Luis MontezLuis Montez
83
83
2
If you want to practice joins, you should use thejoin
keyword. Comma separated join style is out of date (by about 30-odd years). Also, you forgot to ask a question.
– HoneyBadger
Nov 22 '18 at 12:32
Note:JOIN
is an operator, not a statement.
– joop
Nov 22 '18 at 12:32
add a comment |
2
If you want to practice joins, you should use thejoin
keyword. Comma separated join style is out of date (by about 30-odd years). Also, you forgot to ask a question.
– HoneyBadger
Nov 22 '18 at 12:32
Note:JOIN
is an operator, not a statement.
– joop
Nov 22 '18 at 12:32
2
2
If you want to practice joins, you should use the
join
keyword. Comma separated join style is out of date (by about 30-odd years). Also, you forgot to ask a question.– HoneyBadger
Nov 22 '18 at 12:32
If you want to practice joins, you should use the
join
keyword. Comma separated join style is out of date (by about 30-odd years). Also, you forgot to ask a question.– HoneyBadger
Nov 22 '18 at 12:32
Note:
JOIN
is an operator, not a statement.– joop
Nov 22 '18 at 12:32
Note:
JOIN
is an operator, not a statement.– joop
Nov 22 '18 at 12:32
add a comment |
1 Answer
1
active
oldest
votes
You need to know what columns in each table relate to each other.
(We can't tell you, because we can't see your database's design.)
For example...
SELECT
FirstName, LastName, EnglishProductName, ProductAlternateKey,
SUM(SalesAmount) as sales, sum(OrderQuantity) as Qty, CalendarYear
FROM
[AdventureWorksDW2017].[dbo].[FactInternetSales]
INNER JOIN
[AdventureWorksDW2017].[dbo].[DimProduct]
ON DimProduct.ProductID = FactInternetSale.ProductID
INNER JOIN
[AdventureWorksDW2017].[dbo].[DimCustomer]
ON DimCustomer.CustomerID = FactInternetSale.CustomerID
INNER JOIN
[AdventureWorksDW2017].[dbo].[DimDate]
ON DimDate.DateID = FactInternetSale.DateID
WHERE
(FirstName = 'Julia' AND LastName = 'Wright' ) or
(FirstName = 'Cedric' AND LastName = 'Ma' ) or
(FirstName = 'David' AND LastName = 'Rodriguez')
GROUP BY
FirstName, LastName, EnglishProductName, ProductAlternateKey, CalendarYear
ORDER BY
CalendarYear DESC, FirstName ASC, LastName
Be careful to to put the table names in front of the column names. Like I did in the join clauses. I can infer FirstName
comes from DimCustomer
but DimCustomer.FirstName
makes it explicit and robust.
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You need to know what columns in each table relate to each other.
(We can't tell you, because we can't see your database's design.)
For example...
SELECT
FirstName, LastName, EnglishProductName, ProductAlternateKey,
SUM(SalesAmount) as sales, sum(OrderQuantity) as Qty, CalendarYear
FROM
[AdventureWorksDW2017].[dbo].[FactInternetSales]
INNER JOIN
[AdventureWorksDW2017].[dbo].[DimProduct]
ON DimProduct.ProductID = FactInternetSale.ProductID
INNER JOIN
[AdventureWorksDW2017].[dbo].[DimCustomer]
ON DimCustomer.CustomerID = FactInternetSale.CustomerID
INNER JOIN
[AdventureWorksDW2017].[dbo].[DimDate]
ON DimDate.DateID = FactInternetSale.DateID
WHERE
(FirstName = 'Julia' AND LastName = 'Wright' ) or
(FirstName = 'Cedric' AND LastName = 'Ma' ) or
(FirstName = 'David' AND LastName = 'Rodriguez')
GROUP BY
FirstName, LastName, EnglishProductName, ProductAlternateKey, CalendarYear
ORDER BY
CalendarYear DESC, FirstName ASC, LastName
Be careful to to put the table names in front of the column names. Like I did in the join clauses. I can infer FirstName
comes from DimCustomer
but DimCustomer.FirstName
makes it explicit and robust.
add a comment |
You need to know what columns in each table relate to each other.
(We can't tell you, because we can't see your database's design.)
For example...
SELECT
FirstName, LastName, EnglishProductName, ProductAlternateKey,
SUM(SalesAmount) as sales, sum(OrderQuantity) as Qty, CalendarYear
FROM
[AdventureWorksDW2017].[dbo].[FactInternetSales]
INNER JOIN
[AdventureWorksDW2017].[dbo].[DimProduct]
ON DimProduct.ProductID = FactInternetSale.ProductID
INNER JOIN
[AdventureWorksDW2017].[dbo].[DimCustomer]
ON DimCustomer.CustomerID = FactInternetSale.CustomerID
INNER JOIN
[AdventureWorksDW2017].[dbo].[DimDate]
ON DimDate.DateID = FactInternetSale.DateID
WHERE
(FirstName = 'Julia' AND LastName = 'Wright' ) or
(FirstName = 'Cedric' AND LastName = 'Ma' ) or
(FirstName = 'David' AND LastName = 'Rodriguez')
GROUP BY
FirstName, LastName, EnglishProductName, ProductAlternateKey, CalendarYear
ORDER BY
CalendarYear DESC, FirstName ASC, LastName
Be careful to to put the table names in front of the column names. Like I did in the join clauses. I can infer FirstName
comes from DimCustomer
but DimCustomer.FirstName
makes it explicit and robust.
add a comment |
You need to know what columns in each table relate to each other.
(We can't tell you, because we can't see your database's design.)
For example...
SELECT
FirstName, LastName, EnglishProductName, ProductAlternateKey,
SUM(SalesAmount) as sales, sum(OrderQuantity) as Qty, CalendarYear
FROM
[AdventureWorksDW2017].[dbo].[FactInternetSales]
INNER JOIN
[AdventureWorksDW2017].[dbo].[DimProduct]
ON DimProduct.ProductID = FactInternetSale.ProductID
INNER JOIN
[AdventureWorksDW2017].[dbo].[DimCustomer]
ON DimCustomer.CustomerID = FactInternetSale.CustomerID
INNER JOIN
[AdventureWorksDW2017].[dbo].[DimDate]
ON DimDate.DateID = FactInternetSale.DateID
WHERE
(FirstName = 'Julia' AND LastName = 'Wright' ) or
(FirstName = 'Cedric' AND LastName = 'Ma' ) or
(FirstName = 'David' AND LastName = 'Rodriguez')
GROUP BY
FirstName, LastName, EnglishProductName, ProductAlternateKey, CalendarYear
ORDER BY
CalendarYear DESC, FirstName ASC, LastName
Be careful to to put the table names in front of the column names. Like I did in the join clauses. I can infer FirstName
comes from DimCustomer
but DimCustomer.FirstName
makes it explicit and robust.
You need to know what columns in each table relate to each other.
(We can't tell you, because we can't see your database's design.)
For example...
SELECT
FirstName, LastName, EnglishProductName, ProductAlternateKey,
SUM(SalesAmount) as sales, sum(OrderQuantity) as Qty, CalendarYear
FROM
[AdventureWorksDW2017].[dbo].[FactInternetSales]
INNER JOIN
[AdventureWorksDW2017].[dbo].[DimProduct]
ON DimProduct.ProductID = FactInternetSale.ProductID
INNER JOIN
[AdventureWorksDW2017].[dbo].[DimCustomer]
ON DimCustomer.CustomerID = FactInternetSale.CustomerID
INNER JOIN
[AdventureWorksDW2017].[dbo].[DimDate]
ON DimDate.DateID = FactInternetSale.DateID
WHERE
(FirstName = 'Julia' AND LastName = 'Wright' ) or
(FirstName = 'Cedric' AND LastName = 'Ma' ) or
(FirstName = 'David' AND LastName = 'Rodriguez')
GROUP BY
FirstName, LastName, EnglishProductName, ProductAlternateKey, CalendarYear
ORDER BY
CalendarYear DESC, FirstName ASC, LastName
Be careful to to put the table names in front of the column names. Like I did in the join clauses. I can infer FirstName
comes from DimCustomer
but DimCustomer.FirstName
makes it explicit and robust.
answered Nov 22 '18 at 12:38
MatBailieMatBailie
59.3k1475110
59.3k1475110
add a comment |
add a comment |
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2
If you want to practice joins, you should use the
join
keyword. Comma separated join style is out of date (by about 30-odd years). Also, you forgot to ask a question.– HoneyBadger
Nov 22 '18 at 12:32
Note:
JOIN
is an operator, not a statement.– joop
Nov 22 '18 at 12:32