How To Compare Records
Feb 6, 2004
Hello Ladies and Gentlemen,
My Access-table contains a Destination and Time field, i want to compare records for Time field with next records of same field.How can I do it..? Let me tell u an exp..
Time field is having a record like 06:23:45 AM for the destination - 'A', so i want to get all the records where the difference is upto 5 Seconds (i.e - 06:23:50 AM) and the Destination is same. It might be possible that there are one more records having time value 06:23:55 AM.
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Sep 1, 2005
Hi
I'm using MS Office 2000, I have an Access database table that contain many fields, namely I need to update FieldA from an Excel Spreadsheet according to the specified primary key of CustomerID. Is there a way to write automate process to import the records from an excel spreadsheet and then place those records in FieldA of the Access Database according to the corresponding CustomerID? The reason I ask is that these two fields are not exactly in the right order in my spreadsheet and my table and to do it manually will take lots of effort.
Your prompt response is greatly appreciated
Thanks
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Jan 28, 2008
Not even sure where to start so if this isn't a query question, please point me in the right direction.
I work in a plant that has a number of cranes. Each crane should be inspected each shift (three shifts per day), each day (less Sunday).
I have exactly what I need to capture the inspections being done. Inspections are identified by crane #, shift, and date.
How do I determine if an inspection hasn't been done? How do I compare the inspections that have been entered against the standard of inspections for each crane, each shift, each day?
I am below average with Access on my best day so please type slowly and be specific. Thanks for any help you can give.
Forrest
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Jun 11, 2013
I have a table that contains the following fields: ID (autonumber), Item, billing date(mmm/yyyy), count, and approved.
My first query returns records where the approved field is null. My second query returns returns all records for 2 months ago where the approved field is not null.
This is my problem, I need to pull records that have NOT been approved for the prior month BUT if they were approved 2 months ago AND the count is the same, it does not need to be returned in the query. Also, if it was approved 2 months ago but the count is different than what it is for 1 month ago, it needs to show in the query.
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Jan 5, 2014
So I have a table:
table1: company_name, year_month, company_rating, rating_change
For each company, I would like to compare the rating from 201201 and 201202 (and keep going for each month) and if there's a change in the rating, update rating_change to the difference in rating values.
The company_rating is a value from 1 to 20.
How should I go about doing that?
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Jul 18, 2013
I have a table called tblAuthorizations. It appears as follows
AuthInstanceID....ConsumerID....AuthNumberID....Au thStart....AuthEnd....PSRUnits....BSTUnits
1374006036.........356679..........20255102....... ...4/22/13......7/21/13.....0..............416
-432536491.........356679...........20255102....... ...1/21/13.......4/21/13....104..........416
-124970517.........356679...........20147863....... ...10/23/12.....1/20/13....208..........520
504564357...........469432..........20254788...... ....4/22/13......7/21/13....0..............520
282523535...........469432..........20254788...... ....1/21/13.......4/21/13....0.............520
I work in mental health, and when we put in a request for a consumer to receive PSR & BST services, we put the above information into our database. Each record identifies which consumer the authorization is for, a start date and end date for them to receive services, and the amount of two types of services (PSR and BST). When one period ends, we request another period, such as in the first three records above, and then the final 2 for another consumer.
What I need to be able to tell is how their service authorizations change. For instance, if I were to compare the first and second records, it would tell me that PSRunits decreased 4/22/13-7/21/13 from 1/21/13-4/21/13 levels.
I have a query that displays the records for each consumer for the current period, but I can't figure out how to identify the previous period's number of PSRUnits or BSTUnits.I've tried adding the following fields, but this isn't working.
PrevEnd: (Select Max(AuthEnd) from tblAuthorizations Where AuthEnd < Auths.[AuthStart])
PrevBST: DLookUp("[BSTUnits]","tblAuthorizations","AuthEnd=" & [PrevEnd] And "ConsumerID=" & [ConsumerID])
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Feb 28, 2014
I have created a mock employee database to work out kinks before I create the real one. One table has employee info (employeeID, name, address, email, phone numbers, etc.). The other table has "employee actions" with fields: employeeID, actiontype, salary, jobtype, jobtitle, jobhours, bonus, actiondate. Actiontypes are "hire", "salary change", "bonus", "leave". It is a little more complicated but that is irrelevant to my query question...
I created a query to show employee salary changes, amount and action date. I want to create a calculated field that shows the dollar change and percentage change from last salary to new salary. So the query involves multiple records or rows, which seems to be a black hole in terms of information on how to do this. If it were Excel, I would just do a quick nested function calculation and be done with it but with Access, where each record is independent of the others, how to calculate it. I know there must be a way to do this because otherwise, what good would an employee database be?
So the questions are: (1) can you do calculations (other than totals or counts) using multiple records/rows? and (2) if so, how do I do it? It seems I would have to do a a specific sort and it would not be easily updatable.
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Aug 9, 2011
I am trying to create a query based on a transaction table which compares the time between two types of transactions.
The initial record would have "A' in the type field and the second record would have "D" in the type field.
each pair of A and D records would be matched on o_time and idnum fields, and I would want to pull each pair and us the datediff function on c_time, using records marked with A as the initial time and records marked with D as the followup time.
Is there any way to accomplish this in a single query or do I need to create two subqueries?
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Jan 9, 2014
I need to create a record of Users. I created a form with fields containing Username,FirstName,LastName & Email Address wherein the UserName is equals the value of the fields FirstName & LastName. I have a save command button and when I click it, I want it to be able to check if the new entry has a similar UserName that exists in the database, if it exists then it will allow me to edit the UserName and then save the data otherwise will allow me to save it.
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May 1, 2014
I am building a tracking database where we would be able to track information which field are null data and report them to our Administration to fill the null data. For this I have created a form name "Search" and I have a combo box control on that form which is bound to "Table = employee" and its ROW SOURCE TYPE="Field List", I would like to able to query records where the selected value in this combo box is null through out the table.
For example if I select "Telephone" from this combo box dropdown, I would like the query to show all the records where the "Telephone" is null, how to set the criteria in query to take the combo box value as "Field Name" and then compare it with the Field/Column in the table and show the null values.
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May 9, 2007
Is there some free software somewhere to allow me to compare the vba in two differnat access dbs highlighting the differances??
THanks
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Dec 21, 2006
Hi All:
I need a mechanism that takes the excel spreadsheet or table and determine if there are any new deal groups. (In this spreadsheet I allready have a deal group field) I will be using Book and DealGroup as combination primary key to compare against the table "8 -- YTD Principal Investments" which will hose the YTD numbers and serve as a historical table we will update throghout the year.If there is a new deal group the append into table "8 - YTD Principal Investments"
Thank you
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Apr 26, 2007
Please help with query/report. I have the following problem.
One student evaluates course before and after. There is several questions related to this evaluation (all are same before and after) and for one question there is 5 possible answer (stored in option group)
I would like to build a report or a query where I can compare data from each student (before and after) for all questions. Is this possible to do in access.
So, StudentA: questionOn: answer: one columen: before, second column: after…. Next question.
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Jan 4, 2007
Hi, all.
I have string: strSQL = SELECT SUM column FROM table
I need compare it with constant number, for Example:
If strSQL > 50000 Then ....
its not working, any Ideas?
Thank You in advance
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Mar 8, 2007
Hi there!
I'm bulding this database where the user will have to insert a full phone number. What I would like to know is? if is there any way where Access can pick the first 5 digits of the number to compare with information already imputed in. by example if the user input the number 01942789789, access pick the number 01942 to look for a match? I know I could do with two diferents fields one for the code number and other for the number, but my boss only want one field. Is there anyone that could help me
Thanks
www.joaobeca.co.uk
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Aug 19, 2005
I have a table that shows Part Numbers. Each part number can be listed multiple times depending on how man Build ID's it is associated to.
Example:
Part Nubmer 123456 could be associated with:
Build Id's F187, A910, F001, C810, E010, C809
or it might only be associated to 1, 2, 3, 4,or 5 of those Build Id's.
What I want my query to do is find any Part Number that is only associated with anything less than all six of the Build Id's.
Example:
Part Number 123456 is only associated with:
Build Id's F187 & A910 or only F001 & C809 or only E010.
If this was the case I would like for that Part Number to show up in the Query along with whatever Build Id's it is associated with as long as it is not associated with all six Build Id's. The Build Id Field is also part of the table.
Any help on how to do this.
Hope all of this makes sense.
Thanks!
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Feb 8, 2006
Hi,
I've made 2 tabels tblIn and tblOut,
Now I want to make a query which get the differences between the number of product A in tblIn and the number of product A in tblOut the same for product B,.... It's possible that there is nothing in tblOut from product X so the query just has to show the number of tblIn of product X, I've tried a few things but i can't make the query can anybody help me???
thx
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Mar 5, 2007
I have two list's of names. I'm able to run a query to find the matches but the ones that don't match i also need to id?
For ex. List a has 200 names List b has 130 names, how can i find the 70 names that don't match?
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May 31, 2007
Situation:
Have 2 Tables that contain the same information, one table was used during registration and had the Data changed
Question:
How do I pull a comparison query to match the registration table to the Main table and pull only the data that is different so I can update the main table with the new Information? :confused:
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Jul 10, 2007
Hello,
I would like to put a restriction on the SQL statement such that if one particular field contains the character "MO", then we take in the record, else we ignore them. May I know how could this be done in the "WHERE" part of the SQL statement? I do not think SQL would read things like Instr(). Thanks!
Regards,
Anyi
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May 1, 2008
I'm trying to setup a delete query that cleans out the records in one table that are also in another table. I was trying to use the address field (would use name but one table splits it First and Last and the other doesn't) but I just can't seem to run the delete query when using a join
anyone have any ideas on how I could setup this delete query?
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Jul 12, 2005
Hello all
Ihave tblyear contain ( B_date and E_date )
in anoter form have feald ( invdate ) i wnat ( Invdate) is between B_date and E_date of the tblyear.
Thank u
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Dec 21, 2004
Is there a tool that is not to expensive that can be used to compare access databases for differences.
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Dec 28, 2004
I need to campare two tables. if there are new records from table A would like to add it to table B.
Also if there are any changes in a field of record i would like to see the change in table B.
thank you
Mark
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May 5, 2005
hello, i have checked out the forum for pevious Q's to this problem and found the below.
http://www.access-programmers.co.uk/forums/showthread.php?t=80692&highlight=compare+tables
only problem is thats its writen at a bit too technicle a level from where i am. i've done some investigation into the problem though.
found out i need to use the docmd.transferdatabase function to import the tables i need to compare into my current db.
my question is this. how does it import them, does it create new tables within the current db or is it put somewhere in temp memory for use only while db is open, not sure how it would work. ideally i would like it to import tables, do the table comparison then create a report of the differences or make a new table showing the differences, then it reverts back to how it was before i imported it. i.e. he current databse is unchanged except for maybe a new report or new table (the results).
thank you for any advice.
Neil
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Oct 3, 2006
Is there a way to compare the value in one field with the value of the same field in the next record? I can do it in Excel by using the following formula:
=If(A1=A2,"Match","No Match")
But I need to be able to do this in an Access query?
Any ideas?
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