i have a Datagrid that stores the number pencils produced each day of the month it looks like this:
Pencil | day 1 | day 2 | day 3 | ... |day 31
Red 0 0 13 0 0
blue 5 1 0 8 0
yellow 0 9 5 0 0
I need to save this data into SQL table but im not sure what's the most efficent way to design the table in SQL.
I was thinking about creating a table in SQL with the fields:
pencilmodel
date
quantity
and then in vb.net making a loop that saves 1 by 1 each cell of the datagrid in to the table, but i dont think this is the best way since i will have like 30 rows and a month has 31 days max so it will be 30*31= 930 times.
Im using VB.net and SQL Server
i would create the table that way (as you suggested):
ID | pencilmodel | ProducedDate | Quantity
1 blue dd-mm-yyyy 7
2 red dd-mm-yyyy 4
3 yellow dd-mm-yyyy 6
also, dont loop and insert each row to database, its not efficient, add it to a dataset first and then update it using DataAdapter.Update or bind a dataset to the datagrid view:
How to: Bind Data to the Windows Forms DataGridView Control
I dont know if this one is relevant but why dont you create a fields based on the date and time? lets say like this in your PC
12/14/2016
You can create a program that will create a field for you everyday for example when the day passes by then add a column look like this.
__________________________________
|12/14/2016|12/15/2016|12/15/2016|
so what will happen is you dont need to loop in DGV you just do your INSERT COMMAND
you just need some modifications and validations in here like
if Date_Has_Been_Changed then
Create Table Add Columns
End If
Related
I am trying to design a query in Microsoft-access which should present the data in the following manner:
Car Make Black White Red
Total 2-door 4-door Total 2-door 4-door Total 2-door 4-door
---------------------------------------------------------------------------------------------------
Honda 4 2 2 3 1 2 4 3 1
Toyota 3 1 2 5 3 2 6 1 5
Ford 2 0 2 0 0 0 1 0 1
In Ms-Access query designer, I cant add more than one field which has a different criteria (for.eg white vs black). If I try to, it gives me nothing in the datasheet view (as if it tried to find a common car which is both white and black). Please tell me a sql query that I can use instead.
EDIT 1
Car Table:
-CarMake "Short text"
-Color "Short text"
-Door "Short text" (2-door or 4-door)
EDIT 2
This is what I was talking about. How to add more fields in here with different criteria for.eg white:
Two suggestions -
First, you could concatenate color & style into one variable and use that in the crosstab query - but you won't get the subtotals for colors.
Second, you could use iif statements in each column to define exactly what you want. Column 1 would be sum(iif(color="black",value,0)). Column 2 would be sum(iif(color="black" and model="2-door",value,0)). And so on. Not as simple as the 1st option, but you'll get exactly the columns you need.
SELECT Car.CarMake, Sum(IIf([color]="black",1,0)) AS BlackTotal, Sum(IIf([color]="black" And [door]="2-door",1,0)) AS Black_2D
FROM Car
GROUP BY Car.CarMake;
I have a table built off a dataset containing timesheet data with possible multiple entries per day (day_date) for a given person. The table is grouped on day_date. The field for hours is effort_hr (see dataset and report layout below).
The table generates a single row with one column for each day (as expected).
For each day I want only one value (total hours for person) so the expression is Sum(Fields!effort_hr.Value) This is properly adding up all the hours for each day.
Now I add a total column at the end of the row to see ALL the hours for the whole timesheet. The expression in the total column cell is Sum(Fields!effort_hr.Value) which is exactly the same as the daily ones. Again, this is adding up all hours for the timesheet.
So this is working great.
I now need a new row that only shows a max of 8 hours per day. So if the person works less, it shows less, but if the person works more, show a max of 8.
In this case, the daily column expression is:
IIF(Sum(Fields!effort_hr.Value)>8.0,8.0,Sum(Fields!effort_hr.Value))
And again, it displays perfectly for each day.
The total for this row is where I run into trouble. I have tried so many ways, but I cannot get the total for the columns in this row. The report keeps showing an #Error in the cell. The report saves fine and there is no error in the expr.
The problem seems to come from the fact that there are 2 values for a given day. So in other words, for 5 days, the person has 6 entries. When I try it for a person with only 5 entries, no problem.
I have tried:
Sum(IIF(Sum(Fields!effort_hr.Value)>8.0,8.0,Sum(Fields!effort_hr.Value)))
RunningValue(IIF(Sum(Fields!effort_hr.Value)>8.0,8.0,Sum(Fields!effort_hr.Value)),Sum,Nothing)
I either get an #Error, or I get the wrong total. Is there any way to just get a total for the cell values in the table? The daily numbers are correct, just give me the total at the end (like Excel).
I could do this in the SQL, but that would mess up other parts of this report.
DataSet:
res_name | day_date | effort_hr
J. Doe | Apr 6, 2015 | 2
J. Doe | Apr 6, 2015 | 9
J. Doe | Apr 7, 2015 | 8
J. Doe | Apr 8, 2015 | 7
J. Doe | Apr 9, 2015 | 10
J. Doe | Apr 10, 2015 | 9
REPORT TABLE Layout:
| Apr 6 | Apr 7 | Apr 8 | Apr 9 | Apr 10 | Totals
Total | 11 | 8 | 7 | 10 | 9 | 45
Reg | 8 | 8 | 7 | 8 | 8 | 39
OT | 3 | 0 | 0 | 2 | 1 | 6
Problem:
Row 1 Column Total works great and gives 45 hours ;
Row 2 Column Total either gives #Error, 41, or some other wrong number - just need it to total the actual values of each cell in the row ;
same problem for Row 3 total
Thanks in advance for your time!
Posting another answer as the previous one has become so long.
I referred to this MSDN link, and used the selected answer. Apparently we need to use custom code to achieve this (if you are not willing to change your dataset and have the calculated values in there).
Right click on report --> report properties --> Go to tab 'Code' --> Paste this
Dim public nettotal as Double
Public Function Getvalue (ByVal subtotal AS Double) AS Double
nettotal = nettotal+ subtotal
return subtotal
End Function
Public Function Totalvalue()
return nettotal
End Function
In the row group expression of second row put
= code.Getvalue(IIF(Sum(Fields!Efforts.Value)>8.0,8.0,Sum(Fields!Efforts.Value)))
In the Total cell expression (for second row) put
=code.Totalvalue()
Save and run, you should see following result.
I used your input data and tried to create the report in given format. I used following function for Row 2 Total
=Sum(IIF(Fields!Efforts.Value>8.0,8.0,Fields!Efforts.Value),"DataSet1",Recursive)
This shows sum as 39 for second row. You can try and let me know if it works for you. If it doesn't I will list the exact steps how I created Matrix and groups.
Note: Don't forget to put your dataset name in the second argument of function Sum. And Recursive, as clear by name, applies Sum recursively for the group.
Update: I followed following steps.
1. Add a Matrix on the report.
2. Under Column group section on Matrix, Select any column name from the dataset. (Otherwise it won't show any columns in the next step)
2. Right click Column --> Add Group --> (Under column group) Add Parent Group. Select Day as Group By --> OK. It will create a new row. Put expression Sum(Efforts) in first row. And your expression =IIF(Sum(Fields!Efforts.Value)>8.0,8.0,Sum(Fields!Efforts.Value)) in the second row.
Right click on the column group section in the group pane --> Select Add Total --> After. It will add new column at the end of Matrix. Put expression Sum(Efforts) in first row and expression =Sum(IIF(Fields!Efforts.Value>8.0,8.0,Fields!Efforts.Value),"DataSet1",Recursive) in the second row.
Save and run you should see following in the report.
Remember to change the names of columns and dataset as par your code.
This is an idea on how to do such grouping, obviously you'd need to do changes for the headers and the 3rd row etc.
HTH.
Excel build-in functions are, at most of the time, effective. However, there are some functions really like implemented half-way and some how dictated their usage. The SUBTOTAL function is one of them.
My data is presented in the following format:
Value Count
100 20
102 3
105 4
102 5
And I want to build a table in this format:
Value Count
100 20
101 0
102 8
103 0
104 0
105 4
I've read this in SO but my situation is a bit differ. Pivot table will be able to give you the subtotals of the values appears in the original data and I don't want to have a loop to insert missing values in the original data (if it is gonna to be a loop over the original data, the loop could use to build the table - which I would prefer to avoid at all)
I wasnt able to find anything like this yet... but here is what i need to do:
I have a query result like this:
ID Data1 Data2 Data3 Data4 ... Data7
1 12 13 15 1 ... 12
2 12 13 15 1 ... 12
3 12 13 15 1 ... 12
4 12 13 15 1 ... 12
I need to make a BarChart With 2 Values, 1 is the first row (ID=1) one is the last row (ID=4). The column headers DataX is what i need the series to be paired by.
Example:
ID Insured Uninsured Rejected
1 12 3 0
4 16 9 2
In the BarChart i need to see the number of insured or ID=1 and ID=2 next to each other, the number of Uninsured and rejected the same.
I feel like i have tried all ways possible but was not able to get anything besides a BarChart where all values of ID=1 where displayed and then all values for ID=2 where displayed next to each other.
Im sure this was a very confusing way to describe it, but i hope someone can understand what i am looking for.
NOTE: I tried to do this in Excel, and it worked within 2 minutes. I set the filter: Series on the 2 rows that i wanted, and set the Categories to the dataX Columns as described, and everything looked great. When i tried to translate this into SSRS i was able to do all the same things in the Series and Categories, but then i had to put in values and that screwed everything up.
PLEASE HELP!
I bet you need to add a grouping to your values by a spanning factor.
I have crosstab which has row columns indicating different classes, and then peoples names across the top.
| | Required | Person 1 | Person 2 | Person 3 |
| Class 1 | 8 6 | 1 6 | 3 6 | 4 6 |
| Class 2 | 6 2 | 3 2 | 2 2 | 1 2 |
Each field contains 2 values The first value is the number of hours spent in the class, the second field is the number of hours required for certification.
The Required field id my grand total summary.
In the cross tab expert the fields are defined as follows.
Rows:
Command.descr -> a field containing the class names
Columns:
Command.fullname -> a field containing students full names
Summarized Fields:
Sum of Command.evlength -> summation of all time spent in a given course
Max of #required -> this formula returns the number of required hours based on the course name
I am trying to highlight the field Sum of Command.evlength if it is greater than or equal to the value of Max of #required.
My solution was to perform background formatting. Right-Click on the Sum of Command.evlength field, select Format Field. Click the borders tab, check Background, and enter a formula.
The formula I was using is:
if CurrentFieldValue >= {#required} then color(152, 251, 152) else crNoColor
This is not the correct formula. My crosstab has been placed in the footer, which causes {#required} to contain the last value in the grid which in the above example is 2.
From my research I thought I would have to use GridRowColumnValue(row or column name) to access the value of {#required} in the crosstab, but I could not come up with the correct string to represent it.
Does anyone have a way for me to correctly perform this comparison?
Frustratingly I don't think you can use the highlighting expert to compare to a dynamic value. You could swap the columns round then add the following formulas:
To the max_of_required background colour:
whileprintingrecords;
global numbervar required_hrs := currentfieldvalue;
crNoColor;
To the sum_of_command.evlength background colour:
whileprintingrecords;
global numbervar required_hrs;
if currentfieldvalue >= required_hrs then
crRed
else
crNoColor;
I think there are a few other ways but i'm not as confident with those so start here.