I am trying to get a very simple thing done in Access and I must have spent almost over 2 days of Internet time to do so. My problem is that I need to get the difference in 2 records to show in a query.
e.g. MyTable has 2 fields: 1. MyDate 2. MtrReading
Everyday I enter date in MyDate and a number in MtrReading. And I need to find out the difference between today's MtrReading and Yesterday's Mtr Reading.
I am having a problem, probably due to my inexperience with Access. Here is the seniero:
-I have a form/table set up for operators to enter numbers on a daily basis. -I am setting up queries/reports to display not only the entered data, but also calculated values from the entered values --I have no idea on how to subtract a previous day's value from today's value and report that value. - Since Access gives no "ownership" to any value I do not know how to reference yesterday's value in today's calculation.Any Ideas?
Hello, I am trying to generate some query result on a form. My DB consists of the following fields : tradeID and profit/loss. How do i make a query to find the Maximum consecutive number of wins and losses in the database and display the results on a form?
Would really appreciate it if any of you have tried to sort and display results for finding consecutive number of events in any database!
I want to place a control in a report footer that will return the highest number of consecutive weeks that a profit was earned. The database has fields named WeekNo and Net. The Net field contains positive values (profit) and negative values (losses). The WeekNo field is an integer from 1 to 52 designating the week number.
For example if the figure in the Net field is a positive number I want the control to count the number of consecutive weeks that a profit was earned. I know how to get the value of total weeks that a profit was earned; this is not what I am looking for. The control must return the highest number of CONSECUTIVE weeks that a profit was earned over the year.
I have looked all over for a way to calculate the difference between water meeter readings. My brain may be Friday slow, but all I can find is for calculating differences in dates. My water table has 3 fields: ReadDate, Reading, Calc1
ReadDate is the date the water reading occurred Reading is the meter reading Calc1 is calculated (when I find out how!) by subtracting the current reading from the previous day's reading.
I would like to add the write script in my form so when the readings are entered, the calculation auto populates the field for the user.
I'm new to building databases and I wouldn't think that this is difficult but it has stumped me and everyone that I have approached to elegantly perform this calculation.
Essentially I have a table of meters (the best real world example is the watermeter that your community uses to measure how much water you use each month.) Each meter in the table has a "child table" of the date/time that the meter was read and the reading on the meter (stored as a number). I need to calculate the difference between the last two readings in the child table for each meter(essentially how much water each meter has used since the last reading.)
I have been able to sum, average, etc. the meter readings, but I can't seem to find a way to get a difference.
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 have atable the is storing ID, attendance_year and meeting code. Iw ould like to query the table and identify the IDs that have 10 consecutive attendance years no matter when it may have occured. So IDs have more than 10 row of data but not necassrily 10 years in a row.
Firstly I have placed this in the general section as I am not quite sure if any vba would need to be created for the following. I would also like to report on the information but the answer may not be done at report level.
Anyway, I have created a very basic database that holds staff attendance and their reason for being absent.
I have a Student Attendance table and it would be great if I could get some way of automatically determining if the attendance status is Absent - Unexcused for two or more consecutive sessions in order for someone to get in contact with the student.
I have a table of employees, and dates they worked on. These are seasonal employees who want to get in as many days as possible before the season ends, but regulation states they must take a compulsory rest day after x days.So I need to create a query that can return the list of employees, with a count of consecutive workdays up until current date.
If today is 20/09/2013, and Johnny worked on, 19, 18, 17, 15, 14, 13, his count must be 3, because he was absent on 16. Therefore only from 17 through 19 is regarded as consecutive.
If Peter worked 19, 18, 17, 16, 15, 14, 13, his count would be 7, because unlike Johnny, Peter still worked on 16.
I have data for multiple account numbers (for work) and dates, and I need to identify when there is a change in account number in order to add a new field with a count - which counts sequentially starting with 1 and then starts over at 1 when the account number changes.
Hi there, Some scene setting to my problem. I have a corporate system numbering invoices consecutively globally. For a subsidiary in Poland this presents a problem - all invoices for the subsidiary must be consecutive. ie. where the globally issued invoices for Poland might be 1,4,5,7 these need to be renumbered before issue in Poland.
It gets more complicated as the Polish Office standard is to invoice in the format "PL/Year/Month/Number" with the Number restarting from 1 for each month.
My database is very simple. Table 1 = Link table to Oracle corporate data Table 2 = Local table of invoices already produced (Global invoice number and date recorded)
I have a filter to find all new invoices (unmatched items), a report to print them and an Append query to populate the new items to the Local table.
My challenge: (1) to recreate the Polish numbering scheme and (2) have it consistently when existing data goes up to mid month and a new append operation has to follow the invoice number sequence.
Any ideas? I guess Autonumber is no good and I have little array experience.
I am setting up VBA to run multiple append queries in consecutive order. The append queries are supposed to pull a four digit number off of a form that will allow them to know which data to append. I want the number to be stored as text to correspond with the tables I am working with, but I am having trouble getting the form to work.
Here is how I would like it to work:
I enter my 4 digits in the text box on the form. Say "1305" for May 2013. I want to then run my vba (my queries update using the forms!txtupdatequery!textbox I have put in the criteria of the queries) and all of them run.
I enter my date (as a number but I want it to be text) and the form gives me a #name? error.
I am trying to create a form that creates an automatic identifier with a value one greater than the previous identifier. I was able to create something that updates in batches of two: That is, I end up with identifiers that go 1, 2, 2, 3, 3, 4, 4, etc. How do I get it to create consecutive identifiers (1, 2, 3, 4, etc.)?
I have list of candidates shown in report. I need each candidate to have a unique number based on user input. And this number increases by 1 for the rest of the candidates in the report.
Example is below:
If user enters 1132 in the user input box then the numbers shown in report should be as below:
Name Assignment Number
Felicity Thomas 1132 Andrew Sen 1133 Andy Luker 1134
Similarly if number entered is 2345 then the numbers shown in the report will be:
Name Assignment Number Felicity Thomas 2345 Andrew Sen 2346 Andy Luker 2347
Could someone clarify the difference between DAO and ADO?
We migrated to Office 2003 last year - some large organizations move at the speed of continental drift. The database is written in Access 2002 (finally have most of it up and running - with thanks), but I need to really understand the difference for the documentation - to see if there are any issues that might undermine the database during the upgrade.
Hi, I have two tables, one being a subset of the other. What I want to do is write a query that lists data in the larger table that is not in the smaller one. In effect I want to subtract the data in the smaller table from the larger table and list the remainder. I have tried something like:
Select a.oem from a,b where a.oem not in (select b.man from b);
This query does not complete and I get 100% CPU usage :( . The largest of the tables has roughly 4000 records in it. Any ideas? Am I doing something wrong?
I have a Transactoin Table that holds the following fields:
TransID (*Primary Key Numerical Value) OrderID (Non Unique Number Value, One Order can have multiple Transactions attributed to it. Status (Numerical Value ranging from 0 to 32, each is a different phase in the life of a transaction such as 0 means Transation Created, 1 through 31 are various actions with 32 beign the transaction closing) Date (The date in which a particular phase of a particular transaction happened.) Reason (The Description of a phase. This is the only text field whose contents are relative to the Status field in the same table.)
I need to find the amount of time passed from the first Transaction to the last transaction of each individual order, which will be displayed in a report. Unfortunately not every order goes through all 32 phases, in fact most dont. The individual orders have a random amount of phases that they go through but each have a starting one (which ranges from 0 onwards) and an ending one (once again it is not necessarily 32). The dates correspond to the numbers in an individual order which means that if an order has the following phases:
1 2 4 6 Then the dates of each phase will be one after the other like the Status Number as shown above. Anybody knows how to do this? I need to find how much time passed from the first transaction to the last for each individual order qand display it in a report.
