I want to implement this functionality but vendBalanceProvisionalTmpProcesing is always empty, i know it is empty because it is tempDB :
while select AccountNum,PostingProfile from vendProvisionalBalanceTmpProcessing
{
select sum(AmountCur) from vendTrans
where vendTrans.AccountNum == vendProvisionalBalanceTmpProcessing.AccountNum
&& vendTrans.PostingProfile == vendProvisionalBalanceTmpProcessing.PostingProfile
&& vendTrans.TransDate >= _fromDate
&& vendTrans.TransDate <= toDate;
tempSum += vendTrans.AmountCur;
select sum(AmountMST) from vendTrans
where vendTrans.AccountNum == vendProvisionalBalanceTmpProcessing.AccountNum
&& vendTrans.PostingProfile == vendProvisionalBalanceTmpProcessing.PostingProfile
&& vendTrans.TransDate >= _fromDate
&& vendTrans.TransDate <=toDate;
tempSum+= vendTrans.AmountMST*ledgerParameters.EonExchangeRate;
tmpValue.Amount = tempSum;
tmpValue.AccountNum = vendTrans.AccountNum;
tmpValue.PostingProfile = vendTrans.PostingProfile;
tmpValue.doInsert();
}
But there are 2 scenarios where i can access to vendProvisionalBalanceTmpProcessing.AccountNum :
insert_recordset tmpValue
(AccountNum, PostingProfile, Amount)
select AccountNum
from vendProvisionalBalanceTmpProcessing
group by AccountNum
join PostingProfile, sum(AmountMST) from vendTrans
group by PostingProfile
where vendTrans.AccountNum == vendProvisionalBalanceTmpProcessing.AccountNum
&& vendTrans.PostingProfile == vendProvisionalBalanceTmpProcessing.PostingProfile
&& vendTrans.TransDate < _fromDate;
update_recordset vendProvisionalBalanceTmpProcessing
setting OpeningBalance = tmpValue.Amount
join tmpValue
where tmpValue.AccountNum == vendProvisionalBalanceTmpProcessing.AccountNum
&& tmpValue.PostingProfile == vendProvisionalBalanceTmpProcessing.PostingProfile;
Any way how i can do while select like that ?
`
I need vendProvisionalBalanceTmpProcessing.AccountNum to do two select sum over vendTrans where vendTrans.AccountNum == vendProvisionalBalanceTmpProcessing.AccountNum. So way how to do it similar to these two scenarios where i have access to vendProvisionalBalanceTmpProcessing would help me.
You would like to reread on how to link to a temporary table. Official documentation.
Especially, to access a tempDB table from outside where it is created, you need to call linkPhysicalTableInstance.
Related
I do not need to know the actual results or even a count - just if the result is null or not.
I am currently doing it like this and then looking at the count:
int itemsNeedingUpdated =
(from i in cDb.DistributionLineItems
where (i.CompanyNo == item.dt_company_no && i.UniqueIdNo == item.Unique_Id_No) &&
(i.DatetimeUpdated >= startingDateTimeToSearch) &&
(i.ReceivingScanPieces > 0 || i.LoadingScanPieces > 0 || i.ActualPieces > 0)
select i.UniqueIdNo).Count();
but as this is going to churn through a lot of times I want to know if this is the fastest way to check this?
Using EF 6 against Azure SQL.
You can use Any:
bool itemsNeedingUpdated =
(from i in cDb.DistributionLineItems
where (i.CompanyNo == item.dt_company_no && i.UniqueIdNo == item.Unique_Id_No) &&
(i.DatetimeUpdated >= startingDateTimeToSearch) &&
(i.ReceivingScanPieces > 0 || i.LoadingScanPieces > 0 || i.ActualPieces > 0)
select i.UniqueIdNo).
Any();
Which will bail out as soon as an item matching the predicate is found.
How can i search in LINQ as stated below??
I Want to enter a string like this "a%b%c%d%" in my textbox and want result as we get in SQL.
Select *
from TableName
Where ColumnName Like 'a%b%c%d%'
LINQ doesn't have like operator, so you could first check if it contains a, b, c and d, then check if a is at start, b is before c, and c before d. Like this:
from item in context.TableName
where item.ColumnName.StartsWith("a") && item.ColumnName.IndexOf("b") != -1
&& item.ColumnName.IndexOf("c") != -1 && item.ColumnName.IndexOf("d") != -1
&& (
item.ColumnName.IndexOf("b") < item.ColumnName.IndexOf("c")
&& item.ColumnName.IndexOf("c") < item.ColumnName.IndexOf("d")
)
select item;
FROM item in context.TableName
WHERE item.ColumnName.StartWith("a%")
OR item.ColumnName.StartWith("b%")
OR item.ColumnName.StartWith("c%")
OR item.ColumnName.StartWith("d%")
SELECT item;
I am working on 3-tier Architecture project
and I have multiple DropDown Lists to make filtering of data that is fetched from database using LINQ.
Now I need a way to filter with these dropdowns where when I select an item in any dropdown it is filtering and when I select from two dropdowns to filter by these two selections and so on...
I use linq like this:
var doctors = from d in db.Doctors
where d.CityID == id
&& d.HasSecretary == hasSec
&& d.OldSystem == oldSys
&& d.MetDoctor == metDoc
&& d.PriceProblem == priceProb
&& d.EasyToConvince == easyToCon
&& d.ComputerSavvy == comSav
&& d.Sold == sold
&& d.NotInterested == notIntr
&& d.FollowUp == followUp
&& d.NewClinic == newClin
&& d.RequestedADemo == reqDemo
select d;
And it is filtering only when I select all dropdowns, and not individually.
Please help :)
You will have to do conditional where clauses e.g.
var doctors = from d in db.Doctors;
if (id != null)
doctors = doctors.Where(d => d.CityID == id);
if (hasSec)
doctors = doctors.Where(d => d.HasSecretary == hasSec);
// other if statements
// results
var results = doctors.ToList();
I need to convert the following C statement to SQL query.
if((object->num1 == 10 && object->num2 == 11) || (object->num3 == 0 && object->num4 == 1)){
//something
}
I want something like
SELECT * FROM `table` WHERE (conditions here)
Thank you in advance.
You can use the following query:
SELECT *
FROM YOUR_TABLE
WHERE (num1=10 AND num2=11) OR (num3=0 AND num4=1);
Morning all.
Just a quick one for you - where can I find the SQL that is executed when a LINQ statement fires?
I have the following code that works a treat,
var r = (from p in getproductweightsbuyer.tblWeights
where p.MemberId == memberid &&
p.LocationId == locationid
select p);
if (buyer != "Not Specified")
r = r.Where(p => p.UnitUserField1 == buyer);
if (subcategory != "Not Specified")
r = r.Where(p => p.UnitUserField2 == subcategory);
I'm just not sure of the SQL that is firing in the conditional where clause.
If you have the database context at hand you could try:
context.GetCommand(query).CommandText
if you debug your code you can put a breakpoint and analyze the value of r, which will have the actual SQL code in it.
As well as the above options, you can also run up SQL profiler and see the actual SQL sent down the wire to the DB.
If you use LINQ to SQL you can set the DataContext.Log property. This will log the SQL when you execute the query:
getproductweightsbuyer.Log = Console.Out;
var r = (from p in getproductweightsbuyer.tblWeights
where p.MemberId == memberid &&
p.LocationId == locationid
select p);
if (buyer != "Not Specified")
r = r.Where(p => p.UnitUserField1 == buyer);
if (subcategory != "Not Specified")
r = r.Where(p => p.UnitUserField2 == subcategory);
foreach (var row in r)
...