my table
+----+----------+---------+---------+----------+
| ID | State A | State B | State C | Duration |
+----+----------+---------+---------+----------+
| 1 | a | a | a | 12 |
+----+----------+---------+---------+----------+
| 2 | a | a | a | 15 |
+----+----------+---------+---------+----------+
| 3 | a | a | b | 12 |
+----+----------+---------+---------+----------+
| 4 | a | b | b | 30 |
+----+----------+---------+---------+----------+
| 5 | b | b | b | 12 |
+----+----------+---------+---------+----------+
IF THE 3 COLUMNS AS THE SAME VALUE AND DURATION <15
result as the following :
+----+-----------------+
| ID | THE RESULT |
+----+-----------------+
| 1 | a is the winner |
+----+-----------------+
This is a filter along with concat():
select concat(statea, ' is the winner')
from t
where statea = stateb and stateb = statec and duration < 15
Related
Have two tables:
Catalog
|----------|----------|-----------|
| Id | Name | CreatedBy |
|----------|----------|-----------|
| 1 | Catalog1 | 1 |
| 2 | Catalog2 | 1 |
| 3 | Catalog3 | 1 |
| 4 | Catalog4 | 2 |
|----------|----------|-----------|
TemplateOnCatalog
|------------|-----------|
| TemplateId | CatalogId |
|------------|-----------|
| 1 | 1 |
| 2 | 2 |
| 3 | 1 |
| 4 | 2 |
| 5 | 2 |
| 6 | 4 |
|------------|-----------|
Using c# and Linq, how to get a list of all the catalogs, where CreatedBy = 1, and count the number of templates in the catalog. If no templates, the count value should be 0 (or empty).
Expected result:
|------------|-------------|-------------------|
| CatalogId | CatalogName | NumberOfTemplates |
|------------|-------------|-------------------|
| 1 | Catalog1 | 2 |
| 2 | Catalog2 | 3 |
| 3 | Catalog3 | 0 |
|------------|-------------|-------------------|
I try the following, but it doesn't take catalogs without templates:
var templateCatalogs =
from templateCatalog in db.Catalog.AsNoTracking()
join totc in db.TemplateOnCatalog
on templateCatalog.Id equals totc.CatalogId
where
templateCatalog.CreatedBy == 1
orderby templateCatalog.Name
group new { templateCatalog, totc }
by new { templateCatalog.Name, templateCatalog.Id } into result
select new
{
CatalogId = result.Key.Id,
CatalogName = result.Key.Name,
NumberOfTemplates = result.Count()
};
I try to add new row to footer of column at calculated for Average of each cell in column.
Original datatable:
col1 | col2 | col3 | ... | col20 |
------|------|------|-----|-------|
5 | 10 | 5 | ... | 8 |
------|------|------|-----|-------|
8 | 7 | 8 | ... | 2 |
And I would like to do below :
col1 | col2 | col3 | ... | col20 |
------|------|------|-----|-------|
5 | 10 | 5 | ... | 8 |
------|------|------|-----|-------|
8 | 7 | 8 | ... | 2 |
-------|------|------|-----|-------|
6.5 | 8.5 | 6.5 | ... | 5 |
Here's my code:
if(sum[i] == 0 )
{
dt.Columns.Remove("BIN"+i.ToString()+"");
}
else
{
dt.Columns.Add("%BIN"+i.ToString()+"", typeof(decimal),"(BIN"+i.ToString()+" /
[In System])*100");
if (i == 1)
{
dt.Columns.Add("100-%BIN1", typeof(double), "100 -[%BIN1]");
Avg[i] = Convert.ToDouble(dt.Compute("Avg([col"+i.Tostring()+"])", string.Empty));
}
else
{
Avg[i] = Convert.ToDouble(dt.Compute("Avg([col" + i.ToString() + "])", string.Empty));
}
dt.Rows.Add("Avg_xbar"+i.ToString()+"", Avg[i]);
}
From my code above,There is a problem about result is below:
col1 | col2 | col3 | ... | col20 |
-----------|------|------|-----|-------|
5 | 10 | 5 | ... | 8 |
-----------|------|------|-----|-------|
8 | 7 | 8 | ... | 2 |
-----------|------|------|-----|-------|
Avg_xbar1 | 6.5 | | | |
-----------|------|------|-----|-------|
Avg_xbar2 | 8.5 | | | |
-----------|------|------|-----|-------|
Avg_xbar3 | 6.5 | | | |
-----------|------|------|-----|-------|
... | ... | | | |
-----------|------|------|-----|-------|
Avg_xbar20 | 5 | | | |
I'm assuming that you've got that code running in a loop for each column. You'll want to move the addition of rows outside of this loop.
for (var i = 0; i < columns.length; i++) {
// existing looping logic
}
dt.Rows.Add(Avg);
how to assign colour to duplicate values in a list
This my table
| user_id | account_no | zip | date |
| 1 | 123 | 55555 | 12-DEC-09 |
| 1 | 123 | 66666 | 12-DEC-09 |
| 1 | 123 | 55555 | 13-DEC-09 |
| 2 | 456 | 77777 | 14-DEC-09 |
| 2 | 456 | 77777 | 14-DEC-09 |
| 2 | 789 | 77777 | 14-DEC-09 |
| 2 | 789 | 77777 | 14-DEC-09 |
You can assign a color in this way:
var userIdGroups = db.TableName.GroupBy(x => x.user_id).AsEnumerable();
var itemsWithColors = userIdGroups
.SelectMany(g => g.Select((x, index) => index == 0
? new { Item = x, Color = Color.Black }
: new { Item = x, Color = Color.Red }));
Now use a foreach loop to process this query and add these items to your UI control.
So I have 2 datatables, The 1st datatable is a traditional datatable which gets its data from certain sql statements.
Datatable 1:
| user_point | | lat | | lng | | radius |
--------------------------------------------------------------
| userpoint0 | | 43.702943 | | -79.37478 | | 3.10685596 |
| userpoint1 | | 43.672655 | | -79.479837 | | 4.970969536 |
However, the certain columns are dynamically generated in Datatable 2 based on the number of userpoints in Datatable 1.
| id | | lat | | lng | | DistanceFromUserpoint0 | | DistanceFromUserpoint1 |
-------------------------------------------------------------------------------------------------------------
| 23184 | | 43.6495246887207 | | -79.4244003295898 | | 4.4464409231533 | | 3.19880848195014 |
| 37957 | | 43.6372413635254 | | -79.4151458740234 | | 4.96760996486758 | | 4.05524888969018 |
| 37965 | | 43.636589050293 | | -79.4169921875 | | 5.04670564187353 | | 4.00990129127938 |
| 60467 | | 43.735538482666 | | -79.4437942504883 | | 4.11692339031897 | | 4.70303114025665 |
| 60475 | | 43.735538482666 | | -79.4437942504883 | | 4.11692339031897 | | 4.70303114025665 |
| 65615 | | 43.7292861938477 | | -79.4317932128906 | | 3.37923630122185 | | 4.59015403452972 |
| 65623 | | 43.7292861938477 | | -79.4317932128906 | | 3.37923630122185 | | 4.59015403452972 |
| 3196486 | | 43.6624603271484 | | -79.4242172241211 | | 3.7316961595166 | | 2.86768157143755 |
| 3196494 | | 43.6624603271484 | | -79.4242172241211 | | 3.7316961595166 | | 2.86768157143755 |
| 5756393 | | 43.719165802002 | | -79.4295654296875 | | 2.95683309139676 | | 4.07847187106957 |
| 5756922 | | 43.719165802002 | | -79.4295654296875 | | 2.95683309139676 | | 4.07847187106957 |
| 5756956 | | 43.719165802002 | | -79.4295654296875 | | 2.95683309139676 | | 4.07847187106957 |
| 5756991 | | 43.719165802002 | | -79.4295654296875 | | 2.95683309139676 | | 4.07847187106957 |
| 5757096 | | 43.719165802002 | | -79.4295654296875 | | 2.95683309139676 | | 4.07847187106957 |
| 5757134 | | 43.719165802002 | | -79.4295654296875 | | 2.95683309139676 | | 4.07847187106957 |
Now I will add a new column at the end of datatable 2 called the Closest_userpoint which will store the value of the distance which is the closest userpoint for that row.
So now my question is how to I find the the smallest/min value for that row, which has columns that are dynamically generated(which means there can be any number of userpoints from none to 100). I am looking for a simplest and most efficient answer, Thank you
EDIT:
Here is my code for how the dynamic columns are created, However I am stuck on figuring out the logic to fill the closestUserpoint Column with min value for that row based on the distancefromuserpoints
EDIT 2:
BONUS QUESTION:
Finally I want to determine if that closest Point/Min value falls within the raidus for that userpoint which it is closest.
it will be easier if you try finding the minimum values after populating the values
use System.Linq; for the Min() method
if (userpoints.Rows.Count > 1)
{
foreach (DataRow dr in selectedPanels.Rows)
{
List<string> alluserpoints = new List<string>();
for (int i = 0; i < userpoints.Rows.Count; i++)
{
if (Convert.ToDouble(userpoints.Rows[i].radius) > Convert.ToDouble(dr["DistanceFromUserpoint" + i]))
{
alluserpoints.Add(dr["DistanceFromUserpoint" + i]+"+userpoint"+i);
}
}
if(alluserpoints.Count>0)
dr["Closest_UserPoint"] = alluserpoints.Min();
else
dr["Closest_UserPoint"] ="none";
}
}
else
{
foreach(DataRow dr in selectedPanels.Rows)
{
if(Convert.ToDouble(userpoints.Rows[0].radius>Convert.ToDouble(dr["DistanceFromUserpoint0"])
{
dr["Closest_UserPoint"]=dr["DistanceFromUserpoint0"]+"+userpoint0";
}
else
{
dr["Closest_UserPoint"]="none";
}
}
}
I have 2 DataGridViews (DGVs).
theChipDGV will contain data like this (except with many more columns):
______________________________________________________________
| NAME | P/N | X | Y | ROTATION | PACKAGE |
|________|________|________|________|____________|___________|
| R16 | 147479 | 20.325 | 100.000| 0 | 0603 |
| C6 | 14739 | -5.325 | -10.105| 180 | 0603 |
| U45 | 123456 | 12.345 | 12.345 | 45 | 0402 |
|________|________|________|________|____________|___________|
theDataBaseDGV will contain data like this (except with many more columns):
____________________________________________________________________________________________
| PACKAGE | DESCRIPTION | FEEDER | VISION | SPEED | MACHINE | WIDTH | TIME |
|___________|_______________|__________|__________|_________|___________|_________|_______ |
| PLCC20 | N/A | 25MM | N/A | 3 | UNIVERSAL | 12MM | 0.05 |
| 0603 | 0603C_1.0 | 8X4 | 1 | 1 | FUJI-1 | 8MM | 20 |
| 0603 | 0603R_1.0 | 12X4 | 1 | 5 | FUJI-2 | 16MM | 0.20 |
|___________|_______________|__________|__________|_________|___________|_________|_______ |
What I would like to do is match the column in theChipDGV labeled PACKAGE with the same labeled column in theDataBaseDGV. If there is a match, the entire row will be concatted into a new DGV (let's label it: theFinalDGV). Also, if the PACKAGE type is matched and is also in the next line (like 0603) it will check to see if the column labeled Name in theChipDGV starts with a R or a C. Depending on which it starts with will determine the rest of the columns from theDataBaseDGV that will be used.
SO:
theFinalDGV will look like this:
_____________________________________________________________________________________________________________________________________________
| NAME | P/N | X | Y | ROTATION | PACKAGE | DESCRIPTION | FEEDER | VISION | SPEED | MACHINE | WIDTH | TIME |
|________|________|________|________|____________|___________|_______________|__________|__________|_________|___________|_________|________|
| R16 | 147479 | 20.325 | 100.000| 0 | 0603 | 0603R_1.0 | 12X4 | 1 | 5 | FUJI-2 | 16MM | 0.20 |
| C6 | 14739 | -5.325 | -10.105| 180 | 0603 | 0603C_1.0 | 8X4 | 1 | 1 | FUJI-1 | 8MM | 20 |
| U45 | 123456 | 12.345 | 12.345 | 45 | 0402 | | | | | | | |
|________|________|________|________|____________|___________|_______________|__________|__________|_________|___________|_________|________|
Notice, if there is no match it leaves the columns empty.
So:
Does anyone know how I can possibly go about doing this? I mostly would like to know how to match the values from 1 column with another and if there are multiple columns from theDataBaseDGV that have the same values.. then how to properly match those.
int chipRowCount = theChipDGV.RowCount;
int dataBaseRowCount = theDataBaseDGV.RowCount;
for (int count = 0; count < chipRowCount; count++)
{
for (int i = 0; i < dataBaseRowCount; i++)
{
if (theChipList[count].PkgStyle.Equals(theDataBaseList[i].PackageType) || (theChipList[count].PkgStyle.Contains(theDataBaseList[i].PackageType) &&
theDataBaseList[i].PartDescription.Contains("R") && theChipList[count].Name.StartsWith("R")) || ((theChipList[count].PkgStyle.Contains(theDataBaseList[i].PackageType) &&
theDataBaseList[i].PartDescription.Contains("C") && theChipList[count].Name.StartsWith("C"))))
{
if (!theChipList[count].Used)
{
theChipList[count].Used = true;
theFinalList.Add(new LoadLine(theChipList[count].Name, theChipList[count].PartNumber,
theChipList[count].XPlacement, theChipList[count].YPlacement, theChipList[count].Rotation,
theChipList[count].PkgStyle, theDataBaseList[i].PackageType, theDataBaseList[i].PartDescription,
theDataBaseList[i].Feeder, theDataBaseList[i].Vision, theDataBaseList[i].Speed,
theDataBaseList[i].Machine, theDataBaseList[i].TapeWidth, 0));
theFinalDGV.DataSource = theFinalList;
}
}
}
}
for (int count = 0; count < theChipList.Count; count++)
{
if (!theChipList[count].Used)
{
theFinalList.Add(new LoadLine(theChipList[count].Name, theChipList[count].PartNumber,
theChipList[count].XPlacement, theChipList[count].YPlacement, theChipList[count].Rotation,
theChipList[count].PkgStyle, string.Empty, string.Empty, string.Empty, string.Empty,
string.Empty, string.Empty, string.Empty, 0));
}
}