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);
Related
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.
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;
if(u<=100)
charge=u*1.35;
else if(u=>100&&u<=200)
What's wrong with this last statement? It is showing an error.
would help if you mentioned what language this is for but probably you should be using >= instead of =>
if (u <= 100) charge = u * 1.35; else if (u >= 100 && u <= 200)
else if(u=>100&&u<=200)
^^-- here
shouldn't the indicated portion be >=? As well, if that's the entirety of the code, you're missing something for this else if to act on...
if (...) {
...
else if (...) {
you're missing this part here
}
Is there a online system which converts SQL - LINQ or can anyone else help convert the SQL - LINQ below?
SELECT MIN(startTime) As startTime, MAX(endTime) As endTime
FROM tblRA
LEFT JOIN tblA ON tblRA.asID = tblA.asID
WHERE 'xxxxxx' BETWEEN tblRA.startDate AND tblRA.endDate
AND tblA.availabilityDayOfWeek = 7
The main area I am having trouble is the .MAX/.MIN.
Heres what I have so far
public List<string> GetResourceAvailabilitiesByDate(DateTime searchDate)
{
DayOfWeek dayOfWeek = searchDate.DayOfWeek;
var minVal = from a in dc.tblResourceAvailabilities
join b in dc.tblAvailabilities on a.asID equals b.asID
where searchDate.Date >= a.startDate.Date && searchDate.Date <= a.endDate.Value.Date
&& b.availabilityDayOfWeek == (int)dayOfWeek
select b.startTime.ToShortTimeString();;
var maxVal = from a in dc.tblResourceAvailabilities
join b in dc.tblAvailabilities on a.asID equals b.asID
where searchDate.Date >= a.startDate.Date && searchDate.Date <= a.endDate.Value.Date
&& b.availabilityDayOfWeek == (int)dayOfWeek
select b.endTime.ToShortTimeString();
var min = minVal.Min(minVal.Min);
var max = maxVal.Max();
return min,max;
Thanks in advance for any help
Clare
I think your code is a little bit incorrect, and the first symptom of it is that you are using repeated code to define minval and maxval. I tried to simulate something similar to what you want and came to the following code, please adapt it to your needs.
public List<string> GetResourceAvailabilitiesByDate(DateTime searchDate)
{
DayOfWeek dayOfWeek = searchDate.DayOfWeek;
var vals = from a in dc.tblResourceAvailabilities
join b in dc.tblAvailabilities on a.asID equals b.asID
where searchDate.Date >= a.startDate.Date && searchDate.Date <= a.endDate.Value.Date
&& b.availabilityDayOfWeek == (int)dayOfWeek
select b;
var min = vals.Min(v => v.startTime).ToShortTimeString();
var max = vals.Max(v => v.startTime).ToShortTimeString();
return new List<string>() { min, max };
}
Some comments on your code, assuming it's C#.
You are trying to return an array of strings when you should be returning an array of dates.
Your where clause is pretty confuse. You're comparing the search date with startdate.Date and endDate.Value.Date. It does not make much sense.
Your select clause could select only b, or a, or whatever. You don't really need to select the date in it.