Hello all. I hope someone can lend a helping hand here. I am trying to create a query that will calculate a 24 hour value for every day of a month. For a month a go out a read meters. I need to get the difference of two readings by subtracting the first day from the second day and so on until I get to the end of the month. So, Day2-Day1=24 hour value, Day3-Day2, Day4- Day3... I have this in a spreadsheet but can't seem to grasp it for a query in a database. I would appreciate any help. Thanks.:confused: :D
I don't use Access too often but I'm trying to connect a table to some business intelligence software I use.
A. Date B. Price C.Ydayprice 01/01/2015 101.45 02/01/2015 104.70 03/01/2015 103.00
Simple stuff. Once I've connected to the table, I can easily do what I want with Field 'Price' and 'Ydayprice'. However, I can't calculate column C. All I want is row 2 to say 101.45, R3 to say 104.7 etc. I've tried various things but I don't have the knowledge to write the action I require. I don't want to calculate the change in Access either.
I have a production application in which i have a table named daily_production with fields as ( prod_id, date, productname, qty ). Now I want a daily production query as
date : xx-xx-xxxx productname | qty | monthlysum(for thsi product) | daily average |
I want this on a single query so that i can make a report out of this .
Access Query. I am creating a time sheet / pay roll database and I want to be able to get a total of the daily hours in a query.
For example I have 'Mon Start' and 'Mon Finish' for Mondays in/out times and I have a 'Mon Total' which gives me the total hours worked for Monday.
The problem I have is that Mon Total only works if the hours are say between 07:00 and 17:00, anything after midnight (00:00) like 21:00 to 07:00 and 'Mon Total' goes crazy !!
At the moment 'Mon Total' is the result of CDate 'Mon Finish' - 'Mon Start' (bit rough I know).
I have found multiple ways of calculating the week of a month for a given date. Now, I want to reverse it, i.e. given a month and week and day of week calculate the date.
Note that in week 1 and last week, there will often be days with no value.
I am not sure whether I posted in the right place but here's the deal: I have a form and a subform based on two tables and on the form I create a mathematical expression concerning a field which is based on another. The results are correct but of course the values in the table remain the same (null). Is there a way to have a formula in the table and then when I create the form based on that table to have the formula ready? BTW where are the data stored if they are not stored in that table?
i have been struggling on this database that i am developing for a while and i haven't found a solution yet.
i have a Two tables
Table 1 "Attendance" with fields Attendance ID, Hours, Group ID.
table 2 "Days" fields, Day ID Week beginning Monday Tuesday Wednesday Thursday Friday Hours
now i have created a form from these two tables, and what i wanted was each day of the week i will input a value under the day and i wanted it to be added up and then the result outputted to the "Hours" Box.
My dilema is that although i have figured out how to add up the fields in the form view by changing the Control source for the Hours box to something like =[Monday]+[Tuesday]....[Friday] this will only display the value in form view, the table will not update. i guess this is because the control source is not relating to te table anymore.
so if someone has some other ideas i would appreciate it. regards Yusef
Just wondering if anybody could help me on this. I have encountered a problem in producing a report based on my main form (recordsource: tblStudents) and subform (recordsource:tblStudentsClasses), which are joined through their respective StudentID fields. My problem pertains to the fact that I just couldn’t seem to find a way to make my report produce a calculated value using an unbound control. I need it to show the average grade a student gets every semester by multiplying his individual class grades against its corresponding credit units and then add them together, and divide them against the sum total of that particular semester’s credit units. For example, a grade of 1.0 for psychology 101 multiplied by that subject’s 3 credit units + a grade of 2.0 for chemistry 101 multiplied by that subject’s 5 credit units and then divided by the sum total of those two subject’s credit units of 8.
I kinda find it complicated because each semester is made up of between 1 to 10 classes, so it would be inappropriate to just put the one average computation on a footer since each semester has to have an average grade of its own. Tried lots of procedure already and couldnt make anyone of them work. Another fact is that a credit unit of –3 and grade of 5.0 shouldn’t be included in the computation at all. And some of my data are supplied by combo boxes in the subform – cboCreditUnits and cboGrades (rowsources: tblClasses and tblGrades). How should I go about this all? Any ideas will be highly appreciated.
Below is the code I have created to calculate the values "CalcValue" and "CalcWork". The values for AssignValue, AssignPriority, Complex, Effort, Goal are all assigned by the selection made in the referred to/related combo boxes. However, the caluclated values return the concatonation of the intergers and not the sum of the integers. Additionally, if I am to use the CDec() function how do I specify the number of decimal places?
what am I missing here?
thanks!
Private Sub cboAssignPriority_AfterUpdate()
Dim CalcValue, AssignValue, AssignPriority, Complex, Effort, Goal, CalcWork As Integer
I have a table with numberous records with Values in a number of fields. In a report I am showing all these records but at the end I want to tally the values.
Whats the best way to do this?
I thought of placing a text box in the form that will run some code to calculated the total....
I have a report that contains 3 subreports with a calculated total text box in each. I am trying to calculate the total of these text boxes from the subreports in the main report but I keep getting an error message (#Name?). Is it possible to calculate calculated sums from subreports in a main report?
I am pretty new to access, I will get right to it.
I am scoring rating scales. I want to be able to enter just the responses from a person, say on 80 questions (preferably into a form), where all the answers are 0 to 3 and have Access add the questions into the right groups to calculate all the sub-scores of the rating scale. For example, Scale A may consist of Questions 1, 6, 15, 29, 35, and 70 I need access to add those up and save them so I can use them in a report. I also need access to add the frequency of certain questions that were responded to with the answer 3. I have gotten Access to calculate the scores in a form by adding extra variables to the form, erasing the variable name out of the white box and putting in the syntax =[Q1]+[Q6]+[Q15], etc. in place of a variable name but it just sits there on the form and doesn't store it anywhere. Thanks
Hi, I wonder if someone can help me with the following problem:
I have a table with 2 columns,start time and end time, both containing time values in a four digit format, eg 0930 being 9:30am etc.
I have made a query to convert these into the standard format (eg 0930 becomes 09:30), using left/right and & functions.
Now I use the timevalue function to convert the string , eg 09:30m into a recongnised time value.
The problem is now I want to find the difference between the start and end times- but when i try a simple end_time - start_time formule it returns a long number which i dont understand, rather than just giving me the difference betwen the two times.
Im sure there is a simple way to do this which I dont know, can anyone help me out? Thanks in advance!
Hi, I wonder if someone can help me with the following problem:
I have a table with 2 columns,start time and end time, both containing time values in a four digit format, eg 0930 being 9:30am etc.
I have made a query to convert these into the standard format (eg 0930 becomes 09:30), using left/right and & functions.
Now I use the timevalue function to convert the string , eg 09:30m into a recongnised time value.
The problem is now I want to find the difference between the start and end times- but when i try a simple end_time - start_time formule it returns a long number which i dont understand, rather than just giving me the difference betwen the two times.
Im sure there is a simple way to do this which I dont know, can anyone help me out? Thanks in advance!
They want me to add to it, where if [Text106]="0",[Reserve]-[Text52], otherwise it's [Text106]="0",[Reserve]-[Text106].I am able to do this second part OK with
I have a query that must calculate the different between values in two different records, based on the date.
The underlying ORIGVALUES table contains:
Date; Value; Diff 1/10/15; 100; (this is what I am trying to calc) 1/11/15; 101; (this is what I am trying to calc) 1/14/15; 102; (this is what I am trying to calc)
What is the best way to have each record calculate the selected date value divided by the prior date value)? E.g.
For 1/11 the math is 101 / 100 (so the 1/11/15 record would show the result of 1.01) For 1/14 the math is 102 / 101 (1/11 to 1/14 represents a weekend)
I could copy the prior day values to the current day records and do that math easily but that is very redundant.
I am using workdays to calculate time passed between two dates. I also have a table for Holidays that I don't want counted as work days. This is working well, but I would like my queries to show a null value instead of showing #Error when a date field is empty. Here is my coding in my Module.
Option Compare Database Option Explicit Public Function Workdays(ByRef startDate As Date, _ ByRef endDate As Date, _ Optional ByVal strHolidays As String = "Holidays" _ ) As Integer
This thing is driving me nuts and is possibly something simple, but can't figure it out.
I have a query which gives me data in three fields : Vendorname, vendorlocation and surveydate The first two are text fields, the last is a date field. What I want is those names and locations, where the surveydate is in THIS month only. So today's month (5) is May and I want all entries for this month only.
I'm trying to create an expression to calculate percentage.
The fields, Value A and Value B might both have null values, but I do not want Access to treat nulls as zero (as in the Nz() fn). How do I get the expression to exclude any nulls and not calculate for those rows, but set the calculated value for a row with null A or B to zero.
I want it to set no calculated value to zero so I don't get overflow errors and can therefore order the data by the calculated field.
Is it possible to create the following logic in query:
"If there is a "SHIFT2" or "SHIFT3" value on the last Friday in month, then change the date values for these entries to the next date (Saturday)"
In the attached sample, there is a number of such values within the "Adv Track Shift" field dated on Friday 04/25/08 in the "shift_date" field. The logic should replace the applicable dates to Saturday 04/26/08. This should work for any month, regardless if it finds either of the two shifts or both of them.
I need to enter workload counts for 10 people, and it is done on a monthly basis. So I have a table of Months (Jan-Dec), a table of names, and a joined table with the months, names and a field for the workload counts.
I would like to make a form where I could select the month and all the names show up so I could go and enter the counts for everyone at the same time. I've attached a diagram to show what it would look like
I am trying to create a database that will keep track of the orders placed for a given part number by month. Currently, my table houses the part number, and the ordered amount for the past three years by month (there are thirty-five columns for every part). My column headings are ORDER_MAY_2013, etc. I would like to set a query up that will look at the column headings and pull the amounts ordered for each part for the past twelve months. In other words, I have three years of data in my table. In my query, I just want one year. However, I don't want to have to rewrite the query every month so that it will pick up the new data. Is there a way to accomplish this?
Is there a better way to build this database? I thought about just have four columns in my table - PART_NUMBER, ORDER_MONTH, ORDER_YEAR, ORDER_AMOUNT. The only problem there, is that every part (there are about 450 parts) would have to be listed 35+ times. That seemed too redundant to me, so I built the table this way. However, now I am having trouble querying against it.
I have a table full of dates of meetings through out the year...
Example
tMeetingDates
16th August 2005 18th September 2005 19th October 2005 23rd November
-----
i also have a report that i print out each month that has the date of the meeting on it... i currently edit the date manually.
I was wondering if there was a way to automate this facility, so that the report looked to the table of dates and looked for the current Months Date that is stored i the table.
i then want this date to be displayed in the Report.
So in this instance if i am running a report for tomorrows meeting being the 19th October it would display that date in the report....regardless of when i run the report...
Obviously if i run the report on the first of November because the month has changed it would then display the date of the November Meeting...
