NHibernate + Criterias + DetachedCriteria - nhibernate

I got this a problem, I need translate this SQL Query to Criteria, but I´m getting some troubles, any one can give a hand?
SELECT * FROM Ref
INNER JOIN Product Prod on Ref.id = Prod.id_referencia
AND Prod.ProdDtAlteracao = (SELECT MAX(Prod2.ProdDtAlteracao) FROM Product Prod2 WHERE Prod.ProdCod = Prod2.ProdCod)

Assuming Ref has a bag/list property called "products" which maps to Product...
session.CreateCriteria<Ref>("r")
.CreateAlias("products", "p", InnerJoin)
.Add(Subqueries.PropertyEq("p.ProdDtAlteracao", DetachedCriteria.For<Product>("p2")
.SetProjection(Projections.Max("p2.ProdDtAlteracao"))
.Add(Restrictions.EqProperty("p.ProdCod", "p2.ProdCod"))))
.List<Ref>();
query would look like
SELECT ...
FROM Ref
INNER JOIN Product Prod on Ref.id = Prod.id_referencia
WHERE Prod.ProdDtAlteracao = (
SELECT MAX(Prod2.ProdDtAlteracao)
FROM Product Prod2
WHERE Prod.ProdCod = Prod2.ProdCod
)

Related

SQL Server Loop Over Records

I have a view vwDocumentLinks with data as shown below:
I have another table RiskTypes with data as below.
The link between the table & viewis : Idx25 = Risk Type and LinkDocNo = DocumentType. What I am trying to achieve is to get DocumentType in RiskTypes that's not in the view vwDocumentLinks foreach BaseValue and where Idx25 = RiskType. An example using a single BaseValue will be:
SELECT * FROM RiskTypeDocuments WHERE RiskType = 'BUSINESS LIMITED COMPANY' AND DocumentType NOT IN (SELECT LINKDOCNO FROM DBO.VWLINKS WHERE BaseValue = '00007573-1637-4B8E-9374-730AF58BCFB6')
I tried the below query and it's not working as expected. Any help will be greatly appreciated. I am a newbie in SQL
SELECT dbo.RiskTypeDocuments.DocumentType,
dbo.RiskTypeDocuments.RiskType,
dbo.vwLinks.BaseValue AS Document
FROM dbo.vwLinks LEFT OUTER JOIN
dbo.RiskTypeDocuments ON dbo.vwLinks.LinkDocNo =
dbo.RiskTypeDocuments.DocumentType AND dbo.vwLinks.Idx25 =
dbo.RiskTypeDocuments.RiskType
WHERE dbo.RiskTypeDocuments.DocumentType IS NOT NULL
ORDER BY Document
NB: I can't change the schema. I can only create views from the existing tables.
Sample Data from the two datasets: vwDocumentLinks & RiskTypeDocuments
SELECT a.DocumentType,
a.RiskType,
b.BaseValue AS Document
FROM dbo.RiskTypeDocuments as a
INNER JOIN (Select distinct Idx25, BaseValue from vwDocumentLinks) as b on b.Idx25 = a.RiskType
where a.DocumentType not in (Select LINKDOCNO from vwDocumentLinks as c where c.basevalue = b.BaseValue )
I think what you are looking for is NOT EXISTS. It takes a little to get your head around, but the idea is to have what is called a correlated subquery. The subquery is joined to the main query, hence the term correlated.
SELECT *
FROM RiskTypeDocuments
WHERE NOT EXISTS (
SELECT 1 FROM vwDocumentLinks
WHERE RiskTypeDocuments.RiskType = vwDocumentLinks.idx25
AND RiskTypeDocuments.DocumentType = vwDocumentLinks.LinkDocNo
)
If you want to retrieve the records which don't exist in the view then
Try like this
SELECT d.DocumentType,
d.RiskType,
v.BaseValue
FROM dbo.vwLinks AS v
OUTER JOIN dbo.RiskTypeDocuments d ON v.LinkDocNo = d.DocumentType AND v.vwLinks.Idx25 =d.RiskType
WHERE v.BaseValue IS NULL
ORDER BY DocumentType

How to do Subquery for same Table in Yii2 Eloquent

how to create this query using model in yii2
select *,p1.plan_id from product p1
where id in (select max(p2.id) from product p2 where p2.plan_id = p1.plan_id)
form the following table Product
id product_name plan_id
-------------------------------
1 bottle 1
2 book 2
3 book 2
4 bottle 1
5 notbook 3
You could refactor you query using an inner join eg:
$sql = "select *
from product p1
inner join (
select plan_id, max(id) max_id
from product
group by plain_id
) t on t.plan_id = p1.plan_id and p1.id = t.max_id";
and in some case could be useful findBySql, assuming your model is name Product
$models = Product::findBySql($sql)->all();
This should be the exact query you would do, but it won't work for MySQL:
// select *, p1.plan_id from product p1
// where id in (select max(p2.id) from product p2 where p2.plan_id = p1.plan_id)
$subquery = (new \yii\db\Query)->select('[[p2]].[[id]]')
->from(['p2' => 'product'])
->where('[[p2]].[[plan_id]] = [[p1]].[[plan_id]]')
->orderBy('[[p2]].[[id]] DESC')->limit(1); // equiv to max(p2.id)
$query = (new \yii\db\Query)->from(['p1' => 'product'])
->where(['p1.id' => $subquery])
->one();
// PS: Yii will quote fields wrapped in `[[]]` double square-brackets.
Using joins
So, you should use innerJoin (or other variants) to achieve the same result working for any database:
$query = (new \yii\db\Query)->from(['p1' => 'product'])
->innerJoin(['product p2'], '[[p2]].[[plan_id]] = [[p1]].[[plan_id]]')
->orderBy('[[p2]].[[id]] DESC')->limit(1); // equiv to max(p2.id)
->one();

Simple sql query with multiple tables

I'm trying to write a simple query but the output is not correct:
Herer my code:
SELECT oc_order_product.order_id AS ordernumber, oc_order_product.quantity,
oc_order_product.model, oc_order_product.name,
oc_order.shipping_company, oc_order.shipping_firstname,
oc_order.shipping_lastname, oc_order.shipping_city, oc_product.location
FROM oc_order_product,
oc_order,
oc_product
WHERE oc_order.order_id = oc_order_product.order_id
AND oc_order.order_status_id = 1
AND oc_product.location = 1
ORDER BY ordernumber, oc_order_product.model
The output is a list of all products with the oc_order.order_status_id = 1 but the second AND (oc_product.location = 1) is not applied. What is wrong? I don't work with JOIN because I don't understand it really good.
Now using modern, explicit JOIN:
SELECT oc_order_product.order_id AS ordernumber, oc_order_product.quantity,
oc_order_product.model, oc_order_product.name,
oc_order.shipping_company, oc_order.shipping_firstname,
oc_order.shipping_lastname, oc_order.shipping_city, oc_product.location
FROM oc_order_product
INNER JOIN oc_order ON oc_order.order_id = oc_order_product.order_id
INNER JOIN oc_product ON oc_product.id = oc_order_product.product_id
WHERE oc_order.order_status_id = 1
AND oc_product.location = 1
ORDER BY ordernumber, oc_order_product.model
That last join
INNER JOIN oc_product ON oc_product.id = oc_order_product.product_id
is just a guess, since I don't know which columns to use!
jarlh is guessing that oc_product.id = oc_order_product.product_id.
I'm going to guess that your data element names are consistently and uniquely named throughout your schema and therefore suggest you use ultra-modern NATURAL JOIN:
SELECT order_id AS ordernumber, quantity,
model, name, shipping_company, shipping_firstname,
shipping_lastname, shipping_city, location
FROM oc_order_product
NATURAL JOIN oc_order
NATURAL JOIN oc_product
WHERE order_status_id = 1
AND location = 1
ORDER
BY ordernumber, model;
...not betting the farm on it, though.

SQL Using Multiply 3 Times with different ID's

I have tables called Products and ProductsDetails. I want to get something like the price of an order. So let's say I want 5 pairs of "Headphonesv1" ( Comparing with not ID but name, since name could change ), 2 packs of "GumOrbit" and 7 packs of "crisps". Pair of headphonesv1 costs 10$, gum 1$ and crisps 2$. So the answer that I should get is bill ID, Bill date, and TotalCost which is = 66. My question is how do I make multiple calculations? The code that I've been trying with one at least but I get syntax error:
SELECT Products.billID, Products.Date, (ProductsDetails.Price * 5 WHERE ProductsDetails.name LIKE 'Headphonesv1')
FROM Products INNER JOIN ProductsDetails ON Products.billdID = ProductsDetails.billID
Also have tried inserting SELECT inside () but then the values that I get are wrong and creating one more inner join inside doesn't seem promising
I think if you just want to see that total cost for multiple items you can use a aggregate and case expression to get the SUM.
SELECT Products.billID,
Products.Date,
SUM(CASE WHEN ProductsDetails.name LIKE 'Headphonesv1' THEN ProductsDetails.Price * 5
WHEN ProductsDetails.name LIKE 'GumOrbit' THEN ProductsDetails.Price * 2
WHEN ProductsDetails.name LIKE 'crisps' THEN ProductsDetails.Price * 7
END) TotalCost
FROM Products
INNER JOIN ProductsDetails ON Products.billdID = ProductsDetails.billID
GROUP BY Products.billID,
Products.Date
this seems very hard coded to serve much use though
Your previous code has a few synax erros. you are closing your parenthesis in the wrong location, and the FROM ... clause should be before the WHERE ... clause. Change your code to this:
SELECT Products.billID, Products.Date, (ProductsDetails.Price * 5)
FROM Products INNER JOIN ProductsDetails ON Products.billdID = ProductsDetails.billID
WHERE ProductsDetails.name LIKE 'Headphonesv1'
and let me know if it works now.
Edited:
The OP requested how to obtain that information for more than one Product. In that case you could switch the statement to:
SELECT SUM(Cost)
FROM (
SELECT Products.billID, Products.Date,
(ProductsDetails.Price *
(CASE WHEN ProductsDetails.name='Headphonesv1' THEN 5 ELSE
CASE WHEN ProductsDetails.name='GumOrbit' THEN 7 ELSE 0 END
END)
) AS Cost
FROM Products INNER JOIN ProductsDetails ON Products.billdID = ProductsDetails.billID
WHERE (ProductsDetails.name = 'Headphonesv1') OR (ProductsDetails.name = 'GumOrbit')
)
And you can continue to add more products.
You probably have another two tables: cart(cartID int/*,more info*/) and cartItems(cartID int /*FK*/, item varchar(50),qty int) where you add something. Finally,
select sum(pd.price * ci.qty) tot
FROM Products p
INNER JOIN ProductsDetails pd ON p.billdID = pd.billID
inner join cartItems ci on ci.item = pd.name
inner join cart c on c.cartID = ci.cartID
where c.cartID = 123456

Only return value that matches the ID on table 1

I have tried all possible joins and sub-queries but I cant get the data to only return one value from table 2 that exactly matches the vendor ID. If I dont have the address included in the query, I get one hit for the vendor ID. How can I make it so that when I add the address, I only want the one vendor that I get prior to adding the address.
The vendor from table one must be VEN-CLASS IS NOT NULL.
This was my last attempt using subquery:
SELECT DISTINCT APVENMAST.VENDOR_GROUP,
APVENMAST.VENDOR,
APVENMAST.VENDOR_VNAME,
APVENMAST.VENDOR_CONTCT,
APVENMAST.TAX_ID,
Subquery.ADDR1
FROM (TEST.dbo.APVENMAST APVENMAST
INNER JOIN
(SELECT APVENADDR.ADDR1,
APVENADDR.VENDOR_GROUP,
APVENADDR.VENDOR,
APVENMAST.VEN_CLASS
FROM TEST.dbo.APVENADDR APVENADDR
INNER JOIN TEST.dbo.APVENMAST APVENMAST
ON (APVENADDR.VENDOR_GROUP = APVENMAST.VENDOR_GROUP)
AND (APVENADDR.VENDOR = APVENMAST.VENDOR)
WHERE (APVENMAST.VEN_CLASS IS NOT NULL)) Subquery
ON (APVENMAST.VENDOR_GROUP = Subquery.VENDOR_GROUP)
AND (APVENMAST.VENDOR = Subquery.VENDOR))
INNER JOIN TEST.dbo.APVENLOC APVENLOC
ON (APVENMAST.VENDOR_GROUP = APVENLOC.VENDOR_GROUP)
AND (APVENMAST.VENDOR = APVENLOC.VENDOR)
WHERE (APVENMAST.VEN_CLASS IS NOT NULL)
Try this:
SELECT APVENMAST.VENDOR_GROUP
, APVENMAST.VENDOR
, APVENMAST.VENDOR_VNAME
, APVENMAST.VENDOR_CONTCT
, APVENMAST.TAX_ID
, APVENADDR.ADDR1
FROM TEST.dbo.APVENMAST APVENMAST
INNER JOIN (
select VENDOR_GROUP, VENDOR, ADDR1
, row_number() over (partition by VENDOR_GROUP, VENDOR order by ADDR1) r
from TEST.dbo.APVENADDR
) APVENADDR
ON APVENADDR.VENDOR_GROUP = APVENMAST.VENDOR_GROUP
AND APVENADDR.VENDOR = APVENMAST.VENDOR
AND APVENADDR.r = 1
--do you need this table; you're not using it...
--INNER JOIN TEST.dbo.APVENLOC APVENLOC
--ON APVENMAST.VENDOR_GROUP = APVENLOC.VENDOR_GROUP
--AND APVENMAST.VENDOR = APVENLOC.VENDOR
WHERE APVENMAST.VEN_CLASS IS NOT NULL
--if the above inner join was to filter results, you can do this instead:
and exists (
select top 1 1
from TEST.dbo.APVENLOC APVENLOC
ON APVENMAST.VENDOR_GROUP = APVENLOC.VENDOR_GROUP
AND APVENMAST.VENDOR = APVENLOC.VENDOR
)
I found another column in the APVENLOC table that I can filter on to get the unique vendor. Turns out if the vendor address is for the main office, the vendor location is set blank.
Easier than I thought it would be!
SELECT DISTINCT APVENMAST.VENDOR_GROUP,
APVENMAST.VENDOR,
APVENMAST.VENDOR_VNAME,
APVENADDR.ADDR1,
APVENMAST.VENDOR_SNAME,
APVENADDR.LOCATION_CODE,
APVENMAST.VEN_CLASS
FROM TEST.dbo.APVENMAST APVENMAST
INNER JOIN TEST.dbo.APVENADDR APVENADDR
ON (APVENMAST.VENDOR_GROUP = APVENADDR.VENDOR_GROUP)
AND (APVENMAST.VENDOR = APVENADDR.VENDOR)
WHERE (APVENADDR.LOCATION_CODE = ' ')
Shaji