I apologize if this has been asked but i can't find where i'm going wrong here.
I need to query (2) dbf tables AP and VENDOR which contain vendors and payables. I need to get a list of all the payables entered between two specified dates. ap_vendor contains the vendor ID in the AP table and v_vendor contains the vendor ID in the vendor table.
I need to use a join to return the vendor name and the amount which are in separate tables.
This is my query:
SELECT a.ap_invamt, a.ap_invoice, b.v_name
FROM AP a JOIN VENDOR b
ON a.ap_vendor = b.v_vendor
I need to add a WHERE clause as well but i cant even get this part to run.
Keep getting error: "Syntax error in FROM clause"
Unlike other SQL dialects, you cannot use just the word JOIN to specify an inner join in Access (JET) SQL. You have to use both keywords: a INNER JOIN b.
Interestingly enough, I just tested it and JET does allow for LEFT JOIN and RIGHT JOIN, without the OUTER keyword.
Change your query to read FROM AP a INNER JOIN Vendor b and it should work.
Related
Please bear with me as this may be a question without a possible answer, but I hope I describe it correctly..
I have a query which joins a number of tables and produces results, and here is the SQL:
SELECT
dbo.Property.PropertyPK,
dbo.Tenancy.TenancyPK,
dbo.Tenant.ContactFK,
dbo.Contacts.strTitle,
dbo.Contacts.strFirstName,
dbo.Contacts.strSurname
FROM dbo.Property
INNER JOIN dbo.Tenancy ON dbo.Property.PropertyPK = dbo.Tenancy.PropertyFK
INNER JOIN dbo.Tenant ON dbo.Tenancy.TenancyPK = dbo.Tenant.TenancyFK
INNER JOIN dbo.Contacts ON dbo.Tenant.ContactFK = dbo.Contacts.ContactPK
The main table is the Property table and I filter out one row by specifying a PropertyPK in my criteria..
My question is.. If the Tenant or Contact record does not exist and I run my query in SQL Management Studio of course I get a message saying there are no rows but can I determine at what stage the join has failed between two tables?
I can of course check this in management studio but I am trying to help the user on the application side to inform them of why there are no rows. My application is in VB and I will write that check if there are no rows and I cannot determine it in SQL..
Sorry for the question in advance..
Derek.. :)
Simply use a LEFT JOIN:
SELECT p.PropertyPK, ty.TenancyPK, t.ContactFK,
c.strTitle, c.strFirstName, c.strSurname
FROM dbo.Property p LEFT JOIN
dbo.Tenancy ty
ON p.PropertyPK = ty.PropertyFK LEFT JOIN
dbo.Tenant t
ON ty.TenancyPK = t.TenancyFK LEFT JOIN
dbo.Contacts c
ON t.ContactFK = c.ContactPK;
This will keep all rows in the Property table. You can then see which primary keys are NULL to see if there were matches in the other tables.
Note that the query is much easier to write and to read when you use table aliases.
I'm not super familiar with SQL but I know the basics. I was recently trying to replicate some logic form reports to SQL Server 2012. I started with the custom query from Webi (a reporting tool) and was trying to make a view from it in SQL.
Here is what the query look like:
SELECT
dimGlobalSalesAnalysisTbl.globalSalesAnalysisDesc,
dimGlobalShipDestinationCountryTbl.area,
dimGlobalShipDestinationCountryTbl.subarea,
dimGlobalCurrentProductTbl.sbuCodeDesc,
dimGlobalShipDateVw.shipDayOfWeekDesc,
sum(factSalesTblVw.globalSalesValue) AS 'Global Sales Value',
SUM(factSalesTblVw.salesUnitQuantity*GlobalFiles.dimCurrentGTINTbl.unitQty) AS 'Sales Unit Quantity'
FROM
dimGlobalCookCompaniesTbl INNER JOIN factSalesTblVw ON
(dimGlobalCookCompaniesTbl.globalCookCompanyID=factSalesTblVw.globalCookCompanyID)
INNER JOIN dimGlobalHistProductTbl ON (dimGlobalHistProductTbl.globalHistProductID=factSalesTblVw.globalHistProductID)
INNER JOIN dimGlobalCurrentProductTbl ON (dimGlobalHistProductTbl.globalCurrentProductID=dimGlobalCurrentProductTbl.globalCurrentProductID)
INNER JOIN dimGlobalHistShipCustomerTbl ON (factSalesTblVw.globalHistShipCustomerID=dimGlobalHistShipCustomerTbl.globalHistShipCustomerID)
INNER JOIN dimGlobalCurrentShipCustomerTbl ON (dimGlobalHistShipCustomerTbl.shipCustomerID=dimGlobalCurrentShipCustomerTbl.globalCurrentShipCustomerID)
***INNER JOIN dimGlobalCountryTbl dimGlobalShipDestinationCountryTbl ON (dimGlobalCurrentShipCustomerTbl.shipDestCountryDesc=dimGlobalShipDestinationCountryTbl.countryCode)***
INNER JOIN dimGlobalSalesAnalysisTbl ON (factSalesTblVw.globalSalesAnalysisID=dimGlobalSalesAnalysisTbl.globalSalesAnalysisID)
INNER JOIN dimGlobalShipDateVw ON (dimGlobalShipDateVw.shipJulianDate=factSalesTblVw.shipDateID)
INNER JOIN GlobalFiles.dimCurrentGTINTbl ON (GlobalFiles.dimCurrentGTINTbl.curGtinId=factSalesTblVw.GtinID)
WHERE
(
dimGlobalShipDateVw.shipYearNumber IN (DATEPART(yy,GETDATE())-1)
AND
dimGlobalCurrentShipCustomerTbl.shipCustomerNumberDesc
IN ( 'JPC000222-3','CNC000012-1' )
AND
dimGlobalSalesAnalysisTbl.globalSalesAnalysisDesc = 'Return Credits'
)
GROUP BY
dimGlobalShipDateVw.shipDate,
dimGlobalSalesAnalysisTbl.globalSalesAnalysisDesc,
dimGlobalShipDestinationCountryTbl.area,
dimGlobalShipDestinationCountryTbl.subarea,
dimGlobalCurrentProductTbl.sbuCodeDesc,
Upper(dimGlobalCurrentProductTbl.familyCodeDesc),
dimGlobalShipDateVw.shipYearNumber,
dimGlobalShipDateVw.shipDayOfWeekDesc,
dimGlobalCurrentProductTbl.madeByAbbr,
dimGlobalCookCompaniesTbl.companyDesc
This particular query runs on the production system if ran in the relevant database. When trying to make a view of this query in a different database, I precede the objects by [database_name].[schema/dbo] name.
On running the query, I get the error:
Invalid object name 'WWS.dbo.dimGlobalShipDestinationCountryTbl'
I try to find this particular table on the database, but it isn't there, though hovering over the table name in the query give a table definition but no script.
This table is present in an weird looking inner join (6th inner join) syntax like this:
INNER JOIN dimGlobalCountryTbl dimGlobalShipDestinationCountryTbl ON
(dimGlobalCurrentShipCustomerTbl.shipDestCountryDesc=dimGlobalShipDestinationCountryTbl.countryCode)
Two questions:
1. Can someone please explain this query syntax for inner join ?
2. This is pretty stupid but any ideas on how to look into possibly hidden table definitions ?
Two questions: 1. Can someone please explain this query syntax for inner join ?
The inner join in this case is nothing more than a table alias. The creator of the query thought aliasing the table would be easier to understand this name instead of the actual table name, or the same table is referenced twice and one would have to have an alias.
2. This is pretty stupid but any ideas on how to look into possibly hidden table definitions ?
Why? I think you just have a syntax error on your SQL when you added the database_name.schema syntax.
Think of the table alias like a column alias.... but and just like columns, you can omit the 'AS' keyword...
dimGlobalCountryTbl dimGlobalShipDestinationCountryTbl is the same as
dimGlobalCountryTbl AS dimGlobalShipDestinationCountryTbl
TABLE // FIELD
Customer // Company
Stock // Description
Manufact // Manu_Name
Items // Quantity, total_price
I am using Oracle 11g Application Express. I need to display a list of each stock ordered for EACH CUSTOMER. I need to display the Manufacturer, quantity ordered, and total price paid.
When I run this query within my SQL*PLUS command prompt, it endlessly displays results from the tables mentioned until I force-quit (ctrl+c) the application. This is incredibly frustrating - I've tried joining tables, using the EXISTS clause, I just don't know what the hell to do. Any insight would be wonderful - not looking for someone to simply solve this for me, more-so just guide me.
SELECT c.company, s.description, m.manu_name, i.quantity, i.total_price
FROM db1.customer c JOIN db1.orders o USING (customer_num), db1.stock s, db1.manufact m, db1.items i
WHERE o.order_num = i.order_num;
This causes a never-ending display of what seems like the same results, over, and over, and over.
Essentially, I need to display the required information for EACH ORDER of stock. However, I don't need the order_num in my output display of columns, so I thought I needed to use the order_num (in db1.orders o & db1.items i) to essentially tell Oracle, "For each order_num (an order can't exist without an order_num), display (results)...
I am incredibly lost - I've tried outer joins, I've tried using an EXIST operator, I am just stumped and I feel like it's something easy that I'm overlooking.
EDIT: So, it seems I finally found it, after an enormous amount of pondering.
This is how I did it, in case anyone else runs into this issue:
SELECT c.company, s.description, m.manu_name, i.quantity, i.total_price
FROM db1.customer c JOIN db1.orders o USING (customer_num)
JOIN db1.items i USING (order_num)
JOIN db1.stock USING (stock_num)
JOIN db1.manufact m ON m.manu_code = s.manu_code
ORDER BY c.company, s.description;
If you JOIN db1.manufact m USING (manu_code), you get an ambiguously defined column error from Oracle - this is because I already joined the other tables and that column was in one of them (It was the db1.stock table). You can still join them, but you have to use JOIN ON instead.
This displayed the results I needed. Thanks anyways, and cheers if this helped anybody out!
You've only provided two joins (one USING and one in the WHERE) between 5 tables - in this case, you will get the cartesian product of all other rows in all other tables, hence the large number of rows.
(Edit, by implication you need to join all tables together, whether by USING or JOIN)
In order to use the USING join sugar, the same column must be present on the immediate lhs and rhs tables. For multiple joins, into a hierarchy, you may need to nest the USINGs like so:
SELECT c.company, s.description, m.manu_name, i.quantity, i.total_price
FROM customer c
JOIN orders o
JOIN stock s
JOIN items i
JOIN manufact m USING(manid)
USING(itemid)
USING (stockid)
USING (customer_num);
There where join isn't needed since we already have the USING join
I've assumed some columns and relationships between your table in this fiddle here:
You can also drop the USING and use explicit JOIN syntax, which will allow you to avoid the nesting (this is also more portable across the ANSI world):
SELECT c.company, s.description, m.manu_name, i.quantity, i.total_price
FROM customer c
INNER JOIN orders o on c.customer_num = o.customer_num
INNER JOIN stock s on o.stockid = s.stockid
INNER JOIN items i on i.itemid = s.itemid
INNER JOIN manufact m on m.manid = i.manid;
Edit
As OP has demonstrated, no requirement to nest the USING joins, provided that the join ordering is sensible, and provided that the FK JOIN column isn't duplicated across multiple tables.
http://sqlfiddle.com/#!4/91ef6/9
Can you guys help me please in understanding the SQL specifications on join. I don't understand it. I kept getting errors called Unknown column list on on clause.
I got this error over my SQL syntax, I almost rubbed it in my face I just can't understand why it is not working, I have read some article regarding that it is because of precedence etc but I am really confused on what I have done wrong here.
select product.name , product.price from product inner join product_category on
(product_category.product_no = product.product_no ) where product_category.sub_category =
"COFFIN";
I know this question have been ask a hudred and million times here, but the ones I saw are complicated nowhere close in this very basic sql syntax.
THanks for helping me out.
EDIT:
I just had realize that I have product_category not a direct child to my product table so
I just have typed
select * from product
join specifications
join product_category on ( specifications.product_no = product_category.product_no);
But this still gave me an error, unknown column product_category.
I've read and followed some instruction similarly to this sites:
MYSQL unknown clause join column in next join
Unknown column {0} in on clause
MySQL "Unknown Column in On Clause"
I am really frustrated. I really can't get it to work.
For each new table you join in your query, each table must have at least one ON clause. It's hard to know exactly what you're trying to do without knowing the schema (table names, columns, etc), but here's an example
select *
from product p
join specifications s
on p.product_no = s.product_no
join product_category pc
on pc.spec_no = p.spec_no
Check out this link on table aliases as well. Gives a good example on joins + really useful info on how to increase the readability of your SQL
http://msdn.microsoft.com/en-us/library/ms187455(v=sql.90).aspx
I found this article useful as well as it visually displays the different types of joins
http://www.codinghorror.com/blog/2007/10/a-visual-explanation-of-sql-joins.html
You are missing the part where you specify the joining conditions between product and specifcations.
select * from product
join specifications YOU NEED SOMETHING HERE
join product_category on etc
I modified the SQL syntax to look like this, I have overlook a key that connects product_category onto specification so I made necessary link and it worked!!!
SELECT *
FROM product
JOIN specifications ON ( product.product_no = specifications.product_no )
JOIN product_category ON ( specifications.spec_no = product_category.spec_no )
WHERE product_category.sub_category = "COFFIN"
LIMIT 0 , 30
Also thanks for the heads up on missing joining condition on specifications. Heck this carelessness cost so much time.
Thank you so much!
The default join type is an inner join. So if you write join, the database reads inner join, and insist that you include an on clause.
If you'd like to join without a condition, specify the cross join explicitly:
select *
from product p
cross join
specifications s
inner join
product_category pc
on pc.product_no = p.product_no
left join
some_other_table sot
on 1=1
The last join, with the on 1=1 condition, is another way to do a cross join. It's subtly different in that it will return rows from the left table even if the right table is empty.
Example at SQL Fiddle.
i have 3 tables each as follow
cash_credit
Bank_Name-------in_date-------Com_Id---Amount
America Bank 15/05/2010 1 200
HSBC 17/05/2010 3 500
Cheque_credit
Bank_Name-----Cheque_Number-----in_date-------Com_Id---Amount
America Bank 74835435-5435 15/05/2010 2 600
HSBC 41415454-2851 17/05/2010 5 100
Companies
com_id----Com_Name
1 Ebay
2 Google
3 Facebook
4 Amazon
Companies table is a linked table when i tried to create an query as follow
SELECT cash_credit.Amount, Companies.Com_Name, cheque_credit.Amount
FROM cheque_credit INNER JOIN (cash_credit INNER JOIN Companies ON cash_credit.com_id = Companies.com_id) ON cheque_credit.com_id = Companies.com_id;
I get an error saying that my inner Join is incorrectly, this query was created using Access 2007 query design
the error is
Type mismatch in expression
then i thought it might be the inner join so i tried Left Join and i get an error that this method is not used
JOIN expression is not supported
I am confused on where is the problem that is causing all this
Is the data type of column com_Id same/consistent across all the 3 tables?
If not, correct the data type and make it consistent for that column.
That should fix the issue for you.
I think you may want:
SELECT cash_credit.Amount, Companies.Com_Name, cheque_credit.Amount
FROM ( cheque_credit
INNER JOIN Companies
ON cheque_credit.com_id = Companies.com_id)
INNER JOIN cash_credit
ON cash_credit.com_id = Companies.com_id;
Regarding your first error:
Type mismatch in expression
This means that the types involved in some expression are not compatible with each other. Probably you are joining on two columns that have different types. Check the types of the following columns to ensure that they all have the same type:
Companies.com_id
cash_credit.com_id
cheque_credit.com_id
Regarding the different type of joins, as you seem to be uncertain when they should be used:
The difference between a LEFT JOIN and an INNER JOIN is if you have a row in the left table that doesn't match any row in the right table:
LEFT JOIN: returns the row with NULLs for the values in the right table
INNER JOIN: does not return the row