I am unable to execute the below linq.
var items( from p in Patients
join q in MURWorksheets on p.PatientId equals q.PatientId into step1
from s in step1.DefaultIfEmpty()
join t in MURWorksheetAnswers on s.MURWorksheetId equals t.MURWorksheetId into step2
from s2 in step2.DefaultIfEmpty()
select new {p.FirstName , Date = (s.MURDate == null ? DateTime.Now.Date : s.MURDate),
s2.MURQuestionnaireId,s2.MURExpctedAnswersId}).ToList();
Here is the sql for the same for your reference.
select a.FirstName,b.MURDate,c.MURQuestionnaireId,c.MURWorksheetAnswersID from Patients as a
left join MURWorksheet as b on a.PatientId = b.PatientId
left join MURWorksheetAnswers as c on b.MURWorksheetId = c.MURWorksheetId
You are missing an equals sign in your pasted code:
var items = (from p in Patients
join q in MURWorksheets on p.PatientId equals q.PatientId into step1
from s in step1.DefaultIfEmpty()
join t in MURWorksheetAnswers on s.MURWorksheetId equals t.MURWorksheetId into step2
from s2 in step2.DefaultIfEmpty()
select new {p.FirstName , Date = (s.MURDate == null ? DateTime.Now.Date : s.MURDate),
s2.MURQuestionnaireId,s2.MURExpctedAnswersId}).ToList();
Related
can someone please help me in combining these 2 Teradata queries into a single query? The tables - cdb.dim_party_doc_id, cdb.dim_doc_issuer, mdb.fp_account_entity_map do not have customer_account_number in them, so I not able to directly join all these tables in a single query directly.
Thanks a lot!!
SELECT
det.cust_id AS customer_account_number,
c.encrypt_val AS ssn_encrypted,
det.cust_first_name AS name_1,
bal.BALANCE_AMT AS principal
FROM
cdb.DIM_CUSTOMER det
INNER JOIN
cdb.fact_stored_val_acct_dly bal
ON det.cust_id = bal.customer_id AND bal.curr_cd='USD' and bal.acct_type_code='SBA'
INNER JOIN
cdb.dim_party_acct_map b
ON bal.customer_id = b.cust_id
INNER JOIN
cdb.dim_party_doc_id c
ON b.party_key = c.party_key
AND c.status = 'A'
INNER JOIN
cdb.dim_doc_issuer d
ON c.doc_issuer_id = d.doc_issuer_id
AND d.doc_type = 'TAX_ID'
AND d.doc_subtype = 'SSN'
and
SELECT
own.owner_id AS customer_account_number,
entity.entity_id AS dd_number
FROM
mdb.fp_account_owner_map own
LEFT JOIN
mdb.fp_account_entity_map entity
ON own.fp_account_id = entity.fp_account_id
WHERE
entity.entity_type in (12)
AND
own.product_id in (5501)
Below query solves my problem
SELECT
det.cust_id AS customer_account_number,
temp.direct_deposit_account_number AS account_number,
c.encrypt_val AS ssn_encrypted,
det.cust_first_name AS name_1,
bal.BALANCE_AMT AS principal
FROM
cdb.DIM_CUSTOMER det
LEFT JOIN
cdb.fact_stored_val_acct_dly bal
ON det.cust_id = bal.customer_id AND bal.curr_cd='USD' and bal.acct_type_code='SBA'
INNER JOIN
cdb.dim_party_acct_map b
ON bal.customer_id = b.cust_id
INNER JOIN
cdb.dim_party_doc_id c
ON b.party_key = c.party_key
AND c.status = 'A'
INNER JOIN
cdb.dim_doc_issuer d
ON c.doc_issuer_id = d.doc_issuer_id
AND d.doc_type = 'TAX_ID'
AND d.doc_subtype = 'SSN'
INNER JOIN
(SELECT
own.owner_id AS customer_id,
entity.entity_id AS direct_deposit_account_number
FROM mdb.fp_account_owner_map own
LEFT JOIN
mdb.fp_account_entity_map entity
ON own.fp_account_id = entity.fp_account_id
WHERE entity.entity_type in (12)
AND own.product_id in (5501)) AS temp
ON customer_account_number=temp.customer_id
If the person you are searching is a CIA emplyee, take his CIAJobs.EmployerID, otherwise select People.ID
SELECT
case when CIAJobs.EmployeeID IS NULL then People.ID
else CIAJobs.EmployerID
end
FROM [FMO].[People] AS p
LEFT JOIN [FMO].[CIAJobs] j
ON (p.ID = j.[EmployeeID])
AND (j.[relationshipType] = '25a8d79d-377e-4108-8c92-0ef9a2e1ab63')
where p.ID = '1b66e032-94b2-e811-96e0-f48c508e38a2' // id of person you search for
OR
j.[EmployeeID] = '1b66e032-94b2-e811-96e0-f48c508e38a2' // id of person you search for
I tried doing this in Linq:
var a = from l in People
join x in CIAJobs
on l.Id equals x.EmployeeID && x.RelationshipTypeGuid equals Guid.Parse('25a8d79d-377e-4108-8c92-0ef9a2e1ab63')
into gcomplex
from xx in gcomplex.DefaultIfEmpty()
select (xx.EmployeeID == null) ? l.EmployeeId : x.EmployerID;
var b = a.ToList();
why does the query show an error because of this chunk: && x.RelationshipTypeGuid equals Guid.Parse('25a8d79d-377e-4108-8c92-0ef9a2e1ab63')
If I remove this part it shows no error.
Error is: operator && cannot be applied to operands of type Guid and Guid.
Can you help me correct the Linq query please logically and syntactically? Thank you.
You don't need join for multiple conditions in this scenario. Use this
var a = from l in People
join x in CIAJobs
.Where(z=>z.RelationshipTypeGuid
.Equals(Guid.Parse('25a8d79d-377e-4108-8c92-0ef9a2e1ab63')))
on l.Id equals x.EmployeeID
into gcomplex
from xx in gcomplex.DefaultIfEmpty()
select (xx.EmployeeID == null) ? l.EmployeeId : x.EmployerID;
var b = a.ToList();
But based on your problem statement this should do
var a = from l in People
join x in CIAJobs
on l.Id equals x.EmployeeID
into gcomplex
from xx in gcomplex.DefaultIfEmpty()
select (xx == null) ? l.EmployeeId : xx.EmployerID;
var b = a.ToList();
Case1:
var query = (from p in db.TblPost where (from q in db.TblThread
where q.LocationLocationid == locationID && q.CategoriesCategoryid == categoryID select q.Threadid).Contains(p.ThreadThreadid)
join r in db.TblThread on p.ThreadThreadid equals r.Threadid join s in db.TblUser on p.UserUserid equals s.Userid join t
in db.TblCategories on r.CategoriesCategoryid equals t.Categoryid join u in db.TblLocation on r.LocationLocationid
equals u.Locationid orderby r.CreatedTime descending
select new { p, r.Subject, r.EventAddress, r.EventClosetime, r.EventDate, r.EventDuration, r.EventStarttime,
r.EventTitle, r.IseventAllday, r.TargetUsers, r.CreatedTime, s.FirstName, s.MiddleName, s.LastName, t.Name,
u.Locationname, r.Isreadonly }).ToList();
OR
Case 2:
List<TblPost> _tblPost = new List<TblPost>();
_tblPost = (from p in db.TblPost select p).ToList();
List<TblThread> _tblThread = new List<TblThread>();
_tblThread = (from p in db.TblThread select p).ToList();
List<TblUser> _tblUser = new List<TblUser>();
_tblUser = (from p in db.TblUser select p).ToList();
List<TblLocation> _tblLocation = new List<TblLocation>();
_tblLocation = (from p in db.TblLocation select p).ToList();
List<TblCategories> _tblCategory = new List<TblCategories>();
_tblCategory = (from p in db.TblCategories select p).ToList();
var query = (from p in _tblPost where (from q in _tblThread where q.LocationLocationid == locationID
&& q.CategoriesCategoryid == categoryID select q.Threadid).Contains(p.ThreadThreadid) join r in _tblThread on p.ThreadThreadid
equals r.Threadid join s in _tblUser on p.UserUserid equals s.Userid join t in _tblCategory on r.CategoriesCategoryid equals
t.Categoryid join u in _tblLocation on r.LocationLocationid equals u.Locationid orderby r.CreatedTime descending
select new { p, r.Subject, r.EventAddress, r.EventClosetime, r.EventDate, r.EventDuration, r.EventStarttime,
r.EventTitle, r.IseventAllday, r.TargetUsers, r.CreatedTime, s.FirstName, s.MiddleName, s.LastName,
t.Name, u.Locationname, r.Isreadonly }).ToList();
I've these two codes which results the same. But, in case 2 i'm getting the result some quickly as compared to case 1. Which one should i need to follow?
Shall i follow case 2? is it right way to get huge data in Web.API?
SELECT ra.ResidentID, ra.RoomID, r.Number, ra.StartDate, p.FacilityID
FROM(
SELECT ResidentID, MAX(StartDate) AS max_start
FROM RoomAssignments
GROUP BY ResidentID
) m
INNER JOIN RoomAssignments ra
ON ra.ResidentID = m.ResidentID
AND ra.StartDate = m.max_start
INNER JOIN Rooms r
ON r.ID = ra.RoomID
INNER JOIN Person p
ON p.ID = ra.ResidentID
inner join ComplianceStage cs
ON cs.Id = p.ComplianceStageID
ORDER BY ra.EndDate DESC
I'm trying to figure out how to convert this to C# using LINQ. I'm brand new with C# and LINQ and can't get my subquery to fire correctly. Any chance one of you wizards can turn the lights on for me?
Update-----------------
I think I've got the jist of it, but am having trouble querying for the max startdate:
var maxQuery =
from mra in RoomAssignments
group mra by mra.ResidentID
select new { mra.ResidentID, mra.StartDate.Max() };
from ra in RoomAssignments
join r in Rooms on ra.RoomID equals r.ID
join p in Persons on ra.ResidentID equals p.ID
where ra.ResidentID == maxQuery.ResidentID
where ra.StartDate == maxQuery.StartDate
orderby ra.ResidentID, ra.StartDate descending
select new {ra.ResidentID, ra.RoomID, r.Number, ra.StartDate, p.FacilityID}
Following my LINQ to SQL Recipe, the conversion is pretty straight forward if you just follow the SQL. The only tricky part is joining the range variable from the subquery for max start date to a new anonymous object from RoomAssignments that matches the field names.
var maxQuery = from mra in RoomAssignments
group mra by mra.ResidentID into mrag
select new { ResidentID = mrag.Key, MaxStart = mrag.Max(mra => mra.StartDate) };
var ans = from m in maxQuery
join ra in RoomAssignments on m equals new { ra.ResidentID, MaxStart = ra.StartDate }
join r in Rooms on ra.RoomID equals r.ID
join p in Persons on ra.ResidentID equals p.ID
join cs in ComplianceStage on p.ComplianceStageID equals cs.Id
orderby ra.EndDate descending
select new {
ra.ResidentID,
ra.RoomID,
r.Number,
ra.StartDate,
p.FacilityID
};
I have following LINQ statement:
from o in Orders
join od in OrderDetails on o.OrderNumber equals od.OrderNumber
join r in RMAs on o.OrderNumber equals r.OrderNumber
join rd in RMADetails on r.RMAnumber equals rd.RMAnumber
from i in Inventory
where( a => ( od.SKU == a.LocalSKU)).DefaultIfEmpty()//error is here
where (r.Status != "Pending" && od.Adjustment == false)
select new
{
r.Status,
o.Name,
o.Company,
o.Address,
o.Address2,
o.City,
o.State,
o.Country,
o.Email,
o.Zip,
o.Phone,
o.ShipName,
o.ShipCompany,
o.ShipAddress,
o.ShipAddress2,
o.ShipCity,
o.ShipCountry,
o.ShipState,
o.ShipPhone,
o.ShipZip,
o.OrderNumber,
o.ShippingTotal,
OrderDate = o.OrderDate,
SerialNumbers = rd.SerialNumbers ?? "",
o.SourceOrderID
}
It's giving Invalid Where term. What I want to use LEFT OUTER JOIN having SQL Equivalent left join Inventory i on od.SKU = i.LocalSKU
Try this:
var qry = from o in Orders
join od in OrderDetails.Where(od=>od.Adjustment == false) on o.OrderNumber equals od.OrderNumber
join i in Inventory on i.LocalSKU equals od.SKU into grp
from g in grp.DefaultIfEmpty()
join r in RMAs.Where(r=>r != 'Pending') on o.OrderNumber equals r.OrderNumber
join rd in RMADetails on r.RMAnumber equals rd.RMAnumber
select new
{
//set of columns here
};