I have the following EF Core 3.1 statement:
var orders = await _dbContext.Orders.Include(o => o.OrderReceivers)
.Where(o => o.BooleanFlag1 && o.OrderState == OrderState.SomeState && o.OrderReceivers.Any(o => o.BooleanFlag2))
.ToListAsync(cancellationToken);
and this is the generated SQL Server query:
SELECT /*All column names here*/
FROM [Schema].[Orders] AS [o]
LEFT JOIN [Schema].[OrderReceivers] AS [o0] ON [o].[Id] = [o0].[OrderId]
WHERE (([o].[ShouldSendBlackList] = CAST(1 AS bit)) AND ([o].[OrderState] = 2)) AND EXISTS (
SELECT 1
FROM [Schema].[OrderReceivers] AS [o1]
WHERE ([o].[Id] = [o1].[OrderId]) AND ([o1].[BooleanFlag2] = '1'))
ORDER BY [o].[Id], [o0].[Id]
The problem with the generated SQL Query is this part:
([o1].[BooleanFlag2] = '1')
Because this causes the second where clause to be always false!
Any ideas on what is wrong here? Thanks in advance.
I am looking for the equivalent LINQ query for the following Query.
SELECT SUM (Cost) FROM [Vulpith_Test2].[dbo].tbl_MilestonesForOngoingSeeker]
WHERE ([Post_Title_ID] = '3251'
and [List_Title_ID]='1180')
and (PaymentStatus='1' or PaymentStatus='3');
int sumofCost = dbContext.tbl_MilestonesForOngoingSeeker.Where(a => a.Post_Title_ID == "3251" && a.List_Title_ID == "1180" && (a.PaymentStatus == 1 || a.PaymentStatus == 3)).Sum(a => a.Cost);
At my organization we using UI third party tool that communicates with SQL database. I have access to a database, but not to the tool.
Based on a stored procedure below user able to choose from drop-down list DairyStatus "Open", "Closed", or "Both"
ALTER Procedure
AS
#ShowOpen bit = 0,
#ShowClosed bit = 0
SELECT
FROM
WHERE
AND
(
(CASE WHEN (#ShowOpen = 1) THEN
CASE WHEN (tblNoteRecipients.CompletedDate IS NULL and tblNoteRecipients.IsDiary = 1) or tblNoteRecipients.UserGUID is null THEN 1 ELSE 0 END
ELSE
1
END = 1)
AND
(CASE WHEN (#ShowClosed = 1) THEN
CASE WHEN (tblNoteRecipients.CompletedDate IS NULL) THEN 0 ELSE 1 END
ELSE
1
END = 1)
OR ((#ShowOpen = 1) AND (#ShowClosed = 1))
)
So my question is how can I make same drop-down list in SSRS?
What would be the data-set in order to populate this drop-down list?
create a parameter in ssrs with 3 static values(open closed both)
in where clause it should be something like :
( #DairyStatus = 'open' and ((tblNoteRecipients.CompletedDate IS NULL and tblNoteRecipients.IsDiary = 1) or tblNoteRecipients.UserGUID is null)) or
( #DairyStatus = 'closed' and tblNoteRecipients.CompletedDate IS not NULL) or
#DairyStatus = 'both'
select count(tblVV.VNme) as total,
tblvV.VNme
from tblVV
inner join tblRV
on tblVV.MID=tblRV.ID
inner join tblRe
on tblRV.RID=tblRe.RID
where tblRe.StartDate>= '2016-07-01 00:00:00' and
tblRe.EndDate<= '2016-07-31 23:59:59' and
tblRe.Reg= 'uk' and
tblRV.RegNo='BR72' and
tblVV.VNme <>''
group by tblVV.VNme
For the above query I get:
total Vame
1 DDSB
11 MV
The above SQL query shows me correct data so now i try to convert above query to linq query
[WebMethod]
public static string GetVo(string RegNo)
{
string data = "[";
try
{
Ts1 DB = new Ts1();
var re = (from vehvoila in DB.tblVV
join regveh in DB.tblRV on vehvoila.MID equals regveh.ID
join reg in DB.tblReg on regveh.RID equals reg.RID
where regveh.RegNo == RegNo &&
vehvoila.Vame != ""
group vehvoila by vehvoila.Vame into g
select new
{
VNme = g.Key,
cnt = g.Select(t => t.Vame).Count()
}).ToList();
if (re.Any())
{
data += re.ToList().Select(x => "['" + x.Vame + "'," + x.cnt + "]")
.Aggregate((a, b) => a + "," + b);
}
data += "]";
}
linq query show me return data like this
[['DDSB',1],['DPSB',1],['DSB',109],['MV',39],['PSB',1]]
Whereas I want data this
[['DDSB',1],['MV',11]]
Now the data which return SQL query is correct so how I correct linq query
Note: forget fromdate,todate,region parameter in SQL query . because I have page in which I put dropdown and fromdate and todate picker and there is button so when I select values i.e. UK, and dates then data is display in table then when I click on any row in table then I want to get this data in data +=”]”;
actually above linq query work behind clicking on row
total Vame
1 DDSB
11 MV
You can write it all like this:
Ts1 db = new Ts1();
var result = (from vehvoila in db.tblVV
join regveh in db.tblRV on vehvoila.MID equals regveh.ID
join reg in db.tblReg on regveh.RID equals reg.RID
where reg.StartDate >= new DateTime(2016, 7, 1) &&
reg.EndDate < new DateTime(2016, 8, 1) &&
reg.Reg == "uk" &&
regveh == "BR72" &&
vehvoila != ""
group vehvoila by vehvoila.Vame into g
select $"[{g.Key},{g.Count()}]");
var data = $"[{string.Join(",", result)}]";
Because you only use the result for the creation of the string in the select I just return the string formatted for a single item and then later used string.Join instead of using the .Aggregate - I think a bit cleaner
The $"{}" syntax is the C# 6.0 string interpolation
In the condition of the EndDate I decided to use < instead of the <= with the change of the date - At least in oracle when you partition the table by date it is better for performance - maybe also in sql server
Without string interpolation:
Ts1 db = new Ts1();
var result = (from vehvoila in db.tblVV
join regveh in db.tblRV on vehvoila.MID equals regveh.ID
join reg in db.tblReg on regveh.RID equals reg.RID
where reg.StartDate >= new DateTime(2016, 7, 1) &&
reg.EndDate < new DateTime(2016, 8, 1) &&
reg.Reg == "uk" &&
regveh == "BR72" &&
vehvoila != ""
group vehvoila by vehvoila.Vame into g
select new { Key = g.Key, Count = g.Count()})
.AsEnumerable()
.Select(g => string.Format("[{0},{1}]",g.Key, g.Count));
var data = string.Format("[{0}]",string.Join(",", result));
#HistoryMSBType => This is a variable which can contain any varchar.
Depending upon it's value, i need to have different type of where clause.
How can I achieve this ?
SELECT * FROM stageTable map
WHERE id = 1
CASE #HistoryMSBType
WHEN 'Utilization Other' THEN
AND map.ColumnID = 4
WHEN 'Cost Other' THEN
AND map.ColumnID = 6
ELSE
AND map.ColumnName = #HistoryMSBType
END
SELECT *
FROM stageTable map
WHERE id = 1
AND (
(#HistoryMSBType = 'Utilization Other' AND map.ColumnID = 4)
OR
(#HistoryMSBType = 'Cost Other' AND map.ColumnID = 6)
OR
(isnull(#HistoryMSBType,'') NOT IN ('Utilization Other','Cost Other')
AND map.ColumnName = #HistoryMSBType)
)
You need the ISNULL to make it match the CASE-ELSE exactly, but it won't matter if it can never be null.