Update Query With Rnd (random Numbers) Question
Nov 30, 2006
Hello Everyone,
Im trying to make a query which will allow me to run a query update so that all my listings will get a new random number generated for them,
Ive got it selecting any listing with a ID of >0 (so basically thats all of the listings)
What id like it to do is then assign a random number to the randsort field, (prefer a number like 0.812 or 0.342 etc etc)
To start with ive tried using the Rnd feature, but its updating all the listings with exactly the same number (though granted the number changes each time the query is run)
I see in some of the other comments regarding rnd that you may need to put a randomize statement somewhere,
Im very new to programming in access and was just wondering am I on the right track, and if so where abouts should i declare the randomize code since its in a query?
Thanks for your time and look forward to your replies
Cheers Ezy
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Aug 30, 2005
Hi,
Can you please help me out--give me some guidance-if you have knowledge about random numbers. Say, for instance, I have 2,000 records and I want to randomly create a final list with 800 of these records, how do I go about it? Thanks.
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Apr 26, 2007
Hi Guys,
In my table design view I've set my primary key to auto number and the 'New Values' to random. The problem is, sometimes the numbers generated are too long or negitive. Is there any way I can specify the limit of the numbers to be generated and keep them positive numbers?
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Sep 8, 2007
Hi all,
I am having one table with id from 1 to 50. Now I want to return random records from that table using rnd.The point is that is there any funntion like
Select [id] from tblids where id not in (values) with rnd
Thanks in Advance
Dana
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Jan 30, 2005
Hi All,
I'm designing this database, in which, I have to give each record a unique random (or sequance) number of 5 digits, giving that the first digit must be retrived from another field.
Please Help, I need this ASAP!
Any help will be very much appreciated!
Thanks,
CS.
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Jun 7, 2012
How to generate random project numbers that reset automatically every month? I want to generate project numbers that look like this:
1234/06/12
where the 06/12 stands for the month and the year while the 1234 is a randomly generated number.
I want the random number to be four digits long.
I already have a number of projects with similarly generated projects from an existing database. Can I import these projects without changing their project number?
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Oct 25, 2014
Access doesn't seem to recognize the values in a table I am updating. I am using an update query to revise prices in a column Titled "Price". I am comparing the prices in the Price column to the prices in another column with a simple IIF statement (i.e., IIF([Price]=[Column2Price],"Yes","No"). However, oddly, the formula produces a "No" result, even when the prices are plainly the same values, and all formatting for both columns is the same. Whenever I manually type over the price with the same value, the formula works and Access seems to work as intended. For example, I simply type "12.95" over the same value that is displaying in the column that I updated that is already showing "12.95". Then, after I do that, the formula works and produces a "Yes" value.
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Jul 25, 2006
This is my first post. Please help me.
Here's my DB :
Status : Number (Long Integer)
Random : Number (Double)
If Random value is around 0-0.9, the status value is 1
If Random value is around 0.9-1, the status value is 0
Here's my Query :
UPDATE DB Set Random = RND()
Rnd() give random value, but each records have the same value,
let's say 0.71212154
How can I update all records with random value,
with a single query ?
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Jun 21, 2013
Have a table (tblDailyResults) with 4 fields (ID,TestName,Result,TestDate). It contains a snapshot of about 1,000 records. All fields have data except "Result", which is null. I also have a table (tblResults) with 3 fields (ID,TestName,Result), it contains about 100,000 Records of historical results. What I need to do is Update the "Result" field in "tblDailyResults" with a randomly select value from tblResults where the two testname match.
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Mar 24, 2005
hello all
I am trying to set column values to a random number between 3 and 5
PMRatingTokenID: textH1: doubleYearID: textCode:UPDATE PMRating SET PMRating.H1 = (5+3-3)*Rnd()+3
This shows type mismatch error . What is the problem here..
please do help...Thank you
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May 27, 2014
Is it possible to run a SQL command to update a field within a table with random numbers?
More specifically - random long integers linking back to an ID (autonumber) field in another table?
Background to this is, I have multiple static data tables related to each other by long integer identifiers (autonumbers)
The structure is fine but I haven't been provided with the actual data yet - but for development purposes, I need to work on other functionality which requires that this data be present.
So I want to fill my table with dummy data such that I can go off and work on the remaining functionality, but then just go back and clear it all out once I get the actual data.
I have one 'main' static table, which links back to other tables, which I have already populated with dummy static (i.e. company names, locations etc) Now I want to go into my main table and populate those fields in each record with a random ID. I don't mind doing this field-by-field (there's only a handful) but I've a lot of records in there (~1000) so I'd rather not do this record-by-record.
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Apr 3, 2007
Bear with me, im just starting to learn Access and don't have firm grip on terminology or anything like that. With that said.
I have a Table name Products, that has a field called ProductID which is set as the primary key ( its not an autonumber ). The field is numbered 1-245 with each number representing a product.
What i would like to do is update the numbers when i add a new product.
For Example, when i add a product between numbers 2 and 3 i would like the new product to be numbered 3, while the rest of the numbers autoupdate, 3 updates to 4, 4 to five etc. If theres a way to do this I would appreciate help finding out how.
Thanks in Advance.
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Aug 9, 2007
As part of my job, each month I have to select 20 problem report resolutions and grade them on quality. Typically we have about 100 problem report resolutions per month. Is there a way I can use a query to return a random selection of 20?
Thanks,
Jim
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Mar 12, 2008
I have to review 20 reports each month for quality check. I have a query that lists the reports completed within the past 30 days. Is there a way to filter this query to show only 20 random records?
If there is no way to do this, can you suggest some way of doing this so that it's impartial? For example I don't want to select the first 20 of the month because everyone will catch on and wait late in the month to post their report. Normally about 70 reports are completed in a month.
Thanks,
Jim
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Sep 24, 2005
I have a table with RandomID, EmpID, CompanyID. Some Companies will have great than 25 employees. I need to setup a query where I can randomly select all employees from all companies whos employee count is less than 25.
I have tried the following:
SELECT top 10 percent Count(*), empID
FROM tlbCompany
Group By empID
HAVING Count(*)<25
ORDER BY rnd(RandomID);
This counts the total number of employees, so if a company has 10 employees, it will only display one of the them.
Can this query be done?
And, what am I doing wrong?
Thanks to all that help....
Enviva..
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May 14, 2006
The queries go like this at present :
SELECT TOP 1 [Table].[QuestionText], [Table].[Answer] AS CorrectAnswer
FROM [Table]
GROUP BY [Table].[QuestionText], [Table].[Answer], rnd([IDQuestion])
ORDER BY rnd([IDQuestion]);
SELECT TOP 3 Table.Answer AS Correct, qQuestionTextAndAnswer.QuestionText, qQuestionTextAndAnswer.CorrectAnswer
FROM [Table], qQuestionTextAndAnswer
WHERE (((Table.Answer)<>[qQuestionTextAndAnswer].[CorrectAnswer]))
ORDER BY Rnd([IDQuestion]);
These queries are displayed now in an Access form "frmQuestions" which is applied to "Table" that has three columns id, text , and answer. The result is one question and four suggested answer with one only being correct.The arrangement of the answers is randomized--
but the choice of the question is not realy random....it always starts with the same question as it relies only on rnd.
can I improve the queries and randomize and rnd in the same ...or else can I switch these queries to be used from vb6 code and achieve that result.
any help would be appreciated.
By the way I am really a beginner at this who is seeking help from the experts.
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Oct 6, 2006
Good Afternoon Everybody,
Apologies for imposing on you all but I was wondering whether or not you could help me out??
Would you be so kind as to kind as to show me a practical example of how to incorporate a facility into my attached Database which serves to select an equal ratio of my field “SectionHeadings” such that out of the 30 “random” questions that it currently generates it will provides me on completion with the following:
5 From Set1
5 From Set2
5 From Set 3 …..etc etc
It currently generates the 30 questions that I need without a problem; however it routinely selects any number of one particular type, sometimes more from one subject and less of another.
All subjects headings are of equal importance to me and as a consequence would be very grateful if you could look at what I’ve already done and show me what needs to be done in order to achieve my aim.
I hope my request is possible - Any help you could give me would be very much appreciated. Thank you very much.
Best Regards
CarolW
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Apr 29, 2015
I am trying to create a database to link to an online auction site (not ebay) and I want to create a query that randomly generates auction end time and auction length for all listings. I have tried int(rnd()) and various versions but can only generate the same number for all fields in the query.
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Jul 16, 2015
I'm trying to insert 10% of a dataset from dbo_billing into another table Random_Temp. Another form is open when this query is to be ran that passess in the billyear and billmonth... I'm sure it's a syntax issue as I can isolate the random number part and it displays the appropriate data, I just can't re-write it to insert into the other table:
INSERT INTO Random_Temp ( indx, peopleId, audited )
SELECT TOP 10 PERCENT b.indx, b.peopleId, b.audited
FROM dbo_Billing AS b
WHERE (((b.billYear)=[Forms]![billing]![billyear]) AND ((b.billMonth)=[Forms]![billing]![billmonth]) AND ((b.recertifying)=-1))
ORDER BY Rnd(-(1000*b.indx)*Time());
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Jan 2, 2015
I'm trying to create a query that generates random numbers for each record, sorts them by that field, then selects the top record. This should randomize the record being selected.
I can use the Rnd([ID]) function which does appear to generate a random number. Problem is that each time I exit the program and come back in, it always selects the same record. When I remove the Top = 1, to show all the records, every row does have a different random number but it does not appear to be sorting by this field.
If I run the query, here is the number I get: 0.98609316349029
Exit the program, restart, and run the query again: 0.98609316349029
If I refresh the query, the second and third time does appear to be random but the first result is always the same. how to generate truly random numbers?
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Sep 13, 2013
I have a query it correctly displays output as i require. i want to update/store the output query to a table named ustate. my query is as under
Code:
SELECT Auth.nit, UC+UL+UC AS Aut, (select count(NO) from Pers where nit=Auth.nit and rOrd>4) AS Present, (SELECT COUNT(no) FROM pers WHERE nitFrom = auth.nit) AS DIn, (SELECT COUNT(no) FROM pers WHERE nitTo = auth.nit) AS DOut, Present-Dout+Din AS Held
FROM Auth
WHERE (((Auth.Type)='tata'))
ORDER BY Auth.nit;
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Aug 12, 2014
I'm having multiple problems with my database like things such as -
i'm currently working on the Query 2 - On the Phone database (ignore Query 1) and i want to search for multiple plot numbers preferably in one parameter prompt with a comma to seperate numbers. (this could be a multitude of numbers so i would like to be able to input as many as needed). Also when i do search on this query since the Criteria is a 'Between' Value i would expect everything between the 2 numbers input to show up - but a lot of numbers out of the range show up too - why is this? (The Numbers are like "69 to 136" and they will show up - but 1-69 and 136-170 would too
I would also like to implement the search results from Query 2 into the Form i currently have made but it just opens up a access table when the search is made?
i cannot link my database as it is too big for the server - But here are the Criteria for Query 2:
Plot No - (criteria = Between [Enter First Plot No:] And [Enter Last Plot No:])
Site - (criteria = Like "*" & [Enter Site:] & "*")
Product - (criteria = Like "*" & [Enter Product:] & "*"
The Query is the one im most concerned about , i can live without a form.
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Jan 10, 2007
Ok so in excel I have some numbers that are stored as text. The reason being that they are zip codes and some begin with 0 and excel doesn't want numbers to start with 0....so when I import these into an access field that has an input mask for zip codes...will it convert these correctly since the field is a text with input mask?
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Aug 24, 2014
I have 2 fields that I would like to automate if possible
One field is called "p/o number" and another field called "line no"
These fields are part of an ordering database
Let say I have 200 items to purchase form 10 suppliers
And form example 20 items from each supplier
What I do at present is put the order number on each line item and the line number
example
p/o number line no
1 1
1 2
1 3
2 1
2 2
2 3
2 4
What I want to do is just put the first po number in the required line . Put the first line number in i.e. "1" and the macro will complete all the p/o numbers and line numbers for me as per the ones marked in red.
Example
1 1
2 2
3 3
2 1
2 2
2 3
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Mar 18, 2008
HelloBascially I am trying to make a query to check if certain Parameters are met over all in the table then add up records.For example i have a record set up likeBob Brown|Access Programmers|18/3/08|1Bob Brown|Access Programmers|17/3/08|5I would want to make a query compound those records up in a report (e.g the compounded values don't need to be saved just displayed)If the records name field is the same and the dates fall in a certain range then the records will be compounded together e.g the numbers being added upSo the end result for that example would beBob Brown|Access Programmers|6Because the records name and "Access Programmers" is the same and they fall within a certain date range the records are compounded togetherMy question is, Would you make a query to do that or can it be done with a report. Bascially what would be the best way to do it.:)Thankyou In Advance!
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Sep 21, 2005
I have got a big data base (40mb) and i am currently trying to run a query which i need help with.
In my database i different parts which are graded by levels e.g.
Part Level
Nut 2
Bolt 1
Pipe 2
In my query i want to run it so that i will have column headings e.g.
Level 1 Level 2 Level 3
and under each heading there will be a total of the number of parts under each level e.g. under level 1 there will be a one, under level 2 there will a 2 sourcing from the above data example.
Please help!!
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