Hi i have a DataTable with following data formating. I am trying to aggregate in C# on condition. I am a Newbie to Linq.
Profile | Nr | Result|
------------------------
A | 1 | OK |
A | 2 | NOK |
A | 2 | OK |
A | 3 | OK |
A | 4 | OK |
A | 5 | OK |
BB | 1 | OK |
BB | 2 | NOK |
BB | 2 | NOK |
BB | 2 | OK |
BB | 3 | OK |
BB | 4 | OK |
BB | 5 | OK |
I Want to aggregate by first columnt (Profile) and count rows where the Result is OK.
The expected result should be a new DataTable and should look like this.
Profile | Count|
----------------
A | 5 |
BB | 5 |
How can i do this in C# ?
Related
I'm a bit of a beginner in sql and I need your help.
I'm sorry that I don't know if the question is correct.
now the code gives this;
+---------+----------+-------------+------------+
| id | CompanyId| DealId | price |
+---------+----------+-------------+------------+
| 1 | 1 | 1 | 100 |
| 2 | 1 | 2 | 50 |
| 3 | 1 | 3 | 25 |
| 4 | 2 | 1 | 1000 |
| 5 | 2 | 2 | 2000 |
| 6 | 2 | 3 | 2500 |
+---------+----------+-------------+------------+
but this is what i want;
+---------+----------+-------------+------------+------------+--+
| id | companyId| DealName1 | DealName2 | DealName3 | |
+---------+----------+-------------+------------+------------+--+
| 1 | 1 | 100 | 50 | 25 | |
| 2 | 2 | 1000 | 2000 | 2500 | |
| 3 | 3 | value | value | value | |
| 4 | 4 | value | value | value | |
+---------+----------+-------------+------------+------------+--+
select CompanyId
,[1] as DealName1
,[2] as DealName2
,[3] as DealName3
from (select CompanyId, DealId, price from t) t
pivot (sum(price) for DealId in([1],[2],[3])) p
CompanyId
DealName1
DealName2
DealName3
1
100
50
25
2
1000
2000
2500
Fiddle
I have a table with a bunch of data this is a small sample:
Header - Object name
Waarde
ExportRoot.a80_02_00_01_Status.Settings.Off
0
ExportRoot.a80_02_00_01_Status.Standby
0
ExportRoot.a80_02_00_01_Status.Cooling
1
ExportRoot.a80_02_00_01_Status.Drying
0
ExportRoot.a80_02_00_01_Status.Heating
0
ExportRoot.a80_02_00_01_Status.PrepDrain
0
I wish to style this table in a way to where its more readable by removing the object parts and indenting the table like how it looks below.
| Header - Object name | Waarde |
|--------------------------|---------|
| ExportRoot | |
| | a80_02_00_01_Status | |
| | | Settings | |
| | | | Off | 0 |
| | | | Standby | 0 |
| | | | Cooling | 1 |
| | | | Drying | 0 |
| | | | Heating | 0 |
| | | | PrepDrain | 0 |
Is there a way of doing this and if so what should I be looking for all I've found so far are tables with sub tables and that not exactly what I'm looking for. If anyone has an idea let me know I'm super lost.
So basically you need a TreeListView:
There is one project on CodeProject that you can check:
WPF TreeListView Control
There is also commercial products, like DevExpress:
DevExpress TreeList View
I am attempting to write from a DataTable to Excel file and I want to insert a blank row in between each 'WO Base ID' I am not sure how to approach this. I am using C# with .NET, I am using the package EPPlus, I understand how to add a new row and all that with EPPlus but I cannot figure out how to split the 'WO Base IDs" up. Any help is appreciated.
Original Output
+---------------+------------+------------+-----------+-------------+-------------+
| Part # | Close Date | WO Base ID | WO Sub ID | Resource ID | Desired Qty |
+---------------+------------+------------+-----------+-------------+-------------+
| F-COM-95650-1 | 12-04-2001 | WO05837 | 0 | KITTING | 50 |
| F-COM-95650-1 | 12-04-2001 | WO05837 | 0 | PACKAGING | 50 |
| F-COM-95650-1 | 03-20-2002 | WO06008 | 0 | KITTING | 50 |
| F-COM-95650-1 | 03-20-2002 | WO06008 | 0 | PACKAGING | 50 |
| F-COM-95650-1 | 05-01-2002 | WO06231 | 0 | KITTING | 50 |
| F-COM-95650-1 | 05-01-2002 | WO06231 | 0 | PACKAGING | 50 |
| F-COM-95650-1 | 11-07-2002 | WO06994 | 0 | KITTING | 250 |
| F-COM-95650-1 | 11-07-2002 | WO06994 | 0 | PACKAGING | 250 |
+---------------+------------+------------+-----------+-------------+-------------+
Desired Output
+---------------+------------+------------+-----------+-------------+-------------+
| Part # | Close Date | WO Base ID | WO Sub ID | Resource ID | Desired Qty |
+---------------+------------+------------+-----------+-------------+-------------+
| F-COM-95650-1 | 12-04-2001 | WO05837 | 0 | KITTING | 50 |
| F-COM-95650-1 | 12-04-2001 | WO05837 | 0 | PACKAGING | 50 |
| F-COM-95650-1 | 03-20-2002 | WO06008 | 0 | KITTING | 50 |
| F-COM-95650-1 | 03-20-2002 | WO06008 | 0 | PACKAGING | 50 |
| F-COM-95650-1 | 05-01-2002 | WO06231 | 0 | KITTING | 50 |
| F-COM-95650-1 | 05-01-2002 | WO06231 | 0 | PACKAGING | 50 |
| F-COM-95650-1 | 11-07-2002 | WO06994 | 0 | KITTING | 250 |
| F-COM-95650-1 | 11-07-2002 | WO06994 | 0 | PACKAGING | 250 |
+---------------+------------+------------+-----------+-------------+-------------+
I'm trying to do some SQL in C# along with an Access Database. I have two tables. Main Table and a Second Table:
MAIN TABLE
DoubleValue | | | |
----------------------------------------
1,40 | | | |
1,80 | | | |
2,00 | | | |
1,80 | | | |
1,60 | | | |
1,60 | | | |
----------------------------------------
SECOND TABLE
DoubleValue | Points | Weight |
-------------------------------
1,00 | 100 | 2 |
1,20 | 98 | 2 |
1,40 | 96 | 2 |
1,60 | 94 | 2 |
1,80 | 92 | 2 |
2,00 | 90 | 2 |
-------------------------------
I need to find all matching rows in "SECOND TABLE" based on the column "Double Value". Then for the rows that matches I want to get the value in columns "Points" and "Weight" as well as multplie those two columns and create a columns with the name "Sum" and add all three columns to the "MAIN TABLE":
MAIN TABLE - RESULT/OUTPUT
DoubleValue | Points | Weight | Sum |
-------------------------------------
1,40 | 96 | 2 | 192 |
1,80 | 92 | 2 | 184 |
2,00 | 90 | 2 | 180 |
1,80 | 92 | 2 | 184 |
1,60 | 94 | 2 | 188 |
1,60 | 94 | 2 | 188 |
-------------------------------------
The "MAIN TABLE" doesn't need to actually have the new columns "physically" inserted. I would very much prefer if they could just be displayed in the output very much like "SELECT Points * Weight AS Sum" would produce where "Sum" would be displayed but not actually inserted in the table. BUT OK, if it needs to actually be inserted then I will go with that.
How can this be done?
You are looking for a simpler INNER JOIN statement. Please notice that Sum is wrapped as it is a Reserved word in most SQL variants. Please try to avoid naming items with these words.
SELECT m.DoubleValue
, s.Points
, s.Weight
, [Sum] = s.Points * s.Weight
FROM MainTable AS m
INNER JOIN SecondTable AS s ON m.DoubleValue = s.DoubleValue
I have got two tables. Table A contains the main data in every change state, Table B has the detail data.
Table A
| ID | Name |
| 1 | House |
| 2 | Tree |
| 3 | Car |
Table B
| ID | FK | DateTime | Color | Type |
| 1 | 1 | 2017-26-01T13:00:00 | Red | Bungalow |
| 2 | 2 | 2017-26-01T13:05:00 | Brown | Oak |
| 3 | 1 | 2017-26-01T13:10:00 | Green | Bungalow |
| 4 | 3 | 2017-26-01T13:15:00 | Yellow | Smart |
| 5 | 1 | 2017-26-01T13:20:00 | White | Bungalow |
| 6 | 3 | 2017-26-01T13:25:00 | Black | Smart |
Result to watch
| ID | Name | DateTime | Color | Type |
| 1 | House | 2017-26-01T13:20:00 | White | Bungalow |
| 2 | Tree | 2017-26-01T13:05:00 | Brown | Oak |
| 3 | Car | 2017-26-01T13:25:00 | Black | Smart |
The current state of an entity in Table A is described by the record with the youngest timestamp in Table B.
Now, I want to be nofitied, if an entity gets a new state (new record in Table B) or a new entity is created (new records in Table A and B), i.e. it could look like.
New result to watch
| ID | Name | DateTime | Color | Type |
| 1 | House | 2017-26-01T13:20:00 | White | Bungalow |
| 2 | Tree | 2017-26-01T13:05:00 | Brown | Oak |
| 3 | Car | 2017-26-01T19:25:00 | Silver | Smart |
| 4 | Dog | 2017-26-01T20:25:00 | White / Black | Poodle |
With SqlDependency it is not possible to be notified for a statement which contains GROUP BY with MAX aggregate, window functions or TOP clause. So I have no idea how I can get the last detail data for an entity.
Is there any possibility to create a statement for this requirement or are there any other ways to be notified after changes for this result?
You can create and use SQL Triggers usin CLR
Here - SQL Trigger CLR