I have homework from Microsoft Access for school and one of the tasks was to make a search form in query, where you type for example 1. grade, 2. grade or 1st year, etc... But the field contains the name of the classes such as IT1, IT2, E1A, E3C, etc... So I could not just make a search form with [Enter Class:] or Like [Enter Class:]&"*" in the criteria column. So I was thinking, that I can use the IIF statement but it doesn't work how I imagined. I think there is a problem with the LIKE statement. I read on forums, that the IIF statement should be used in the field column but I tried the simple examples in the criteria and it worked just fine. So my question is, how I can make a search form, where I type numerous letters with one certain number in it BUT only the number will be read and returned with the same number in classes. Example: I type to search 1. grade and the value will return classes IT1, E1A, E1B, E1C, E1D. This is the line I used in the criteria column:
Like IIf([Enter the grade:]="*1*";"*1*";IIf("*2*";"*2*";IIf("*3*";"*3*";IIf("*4*";"*4*"))))
Just to qualify, I'm beginner in access and databases overall, so there is big possibility, that I'm missing something.
Thank you for help! Cheers!
Assuming input will always start with a number and you want all values containing that number, consider:
WHERE fieldname LIKE "*" & Val([Enter grade]) & "*"
Also assumes values contain only single digit.
Related
I am in report builder and I have my primary dataset that is from a SQL database, I also then created a second dataset (enter data). I need to compare 2 fields from each dataset to retrieve the correct value from the 2nd dataset and populate a column on my report. I have tried the IIF statements and Lookup statements but I keep getting the error "report item expressions can only refer to fields within the current dataset".
I have a attached a screenshot of what I am trying to do....
The IIF statement I tried to use.. If Acctnum and prodid = each other return IncodeNumber
=IIF((Fields!AcctNum.Value=Fields!AcctNum.Value, "IncodeAccount") AND
(Fields!ProdId.Value =Fields!ProdId.Value, "IncodeAccount")),(Fields!IncodeNumber.Value, "IncodeAccount"),"True")
See code in my problem.
You need to use LOOKUP(). The problem with LOOKUP() is that is can only compare a single value from each dataset. However, we can easily get around this issue by concatenating the two values you need to compare.
Note: This assumes the expression will be in a tablix that is bound to your first dataset and that IncodeAccount is your second dataset - the values you want to lookup. If this is not the case just adjust the expression accordingly
So for you, you probably need to do something like this..
=LOOKUP(
Fields!AcctNum.Value & "||" & Fields!ProdId.Value,
Fields!AcctNum.Value & "||" & Fields!ProdId.Value,
Fields!IncodeNumber.Value,
"IncodeAccount"
)
I've used two pipe symbols to join the values to avoid incorrect matches being found. e.g. Account 123 and product ID 4567 would incorrectly match to Account 1234 and product ID 567 as they would both be 1234567 when joined. By using the || the match would be 123||4567 and 1234||567 respectively.
You may need to convert the values to string using CStr()
Alternative approach
If you are going to do this 'join' multiple times in the same dataset then you could add a calculated column to the dataset that concatenates the two columns. Then you can use this single field in the lookup which will make things a little simpler.
Or, you could do this concatenation in a database view which would make things even easier.
Hello I have been trying to return the result of a DCount within an MS Access form. I have a field called "Process" which stores a process such as "Shipping" and Sub-Process field which stores text too e.g. "Engineering". I have another field which needs to store the count of how many shipping processes have a specific sub-process such as answering "how many sub-processes are there for each process?" called txtcountsubprocesses.
The related text field is saved as txtprocess and the count field (the one I can't seem to get right) has the name txtcountsubprocesses. In the Control Source property for txtcountsubprocesses I have the following expression:
=DCount([Sub Process],[LogisticsData],[Process]=txtprocess.text)
I receive the following error message: #Name?
I have tried multiple other ways of programming the DCount however the way mentioned above seems to be the closest I have to a possible answer. I have also checked the spelling of the table headers from [LogisticsData].
Is it possible to solve my problem using a DCount method like this?
Required output (sorry not sure how to put in a proper table):
Process ; Sub-process ; Sub-processCount (3 columns)
Shipping ; Engineering ; 5 (three pieces of related data - the number being what I need to produce)
Shipping ; Medical ; 4 (three pieces of related data - the number being what I need to produce)
Firstly, DCount needs string parameters to identify field and table name.
Secondly, if you want to include something from the current form, you can concatenate those strings, or use a form parameter.
Thirdly, you should almost never use .Text. Use .Value instead. You can only use .Text on controls that have focus.
So, with all these things fixed:
=DCount("[Sub Process]","[LogisticsData]","[Process]='" & txtprocess.Value & "'")
You might want to read into using parameters, since oddities might occur when the value is Null or contains single quotes
I am creating a report, the purpose of which is to print a letter to many different people. Obviously each person's name, email, etc. will be different. For this I am using a list, which I understand uses a tablix.
Now inside each letter I also need some global data that comes from a dataset. For example, the company email, telephone number, etc. This data will be the same for every letter. However, every time I try to use some expression to get this, I get an error such as:
The Value expression for the text box ‘Textbox11’ refers to the
field ‘URL’. Report item expressions can only refer to fields within
the current dataset scope or, if inside an aggregate, the specified
dataset scope. Letters in the names of fields must use the correct
case.
The expression I'm using to get the above error is
=LookupSet(true, true, Fields!URL, "SystemVars")
I've tried other things but I can't figure out what I need to make it word.
Is there an expression I can use to solve this problem? If not, what steps should I take to get my letters working?
You are missing the ".Value" portion in the expression. Try this:
=First(Fields!URL.Value, "SystemVars")
I am working on a report that displays patient names (as groups with drilldowns) and several fields related to their visits. I have created a column in the report to display whether or not a specific value appears in the 'LocationID' column. The expression I used is
=IIF(Fields!LocationID.Value="WELL","Y","N")
I thought this was working great, it displays Y or N next to each name to let me know if 'WELL' was in their 'LocationID'. I checked several to ensure that this was going to work and discovered that there was a LocationID code of 'WHS' and since I have the rows ordered by Name and LocationID if there was a WHS visit it shows up at the top of the group and my expression is only seeing this top item. How can this expression be written differently so that it searches the entire result of each group? Depending on the date range a patient may have one visit or they may have ten. I need to check all visits that are returned. Perhaps there is a better method. Thanks in advance.
I agree with jimmy8ball that the easiest way to solve most issues like this is to push some logic back into the SQL layer.
However, if you really want to do this via SSRS functionality, then you could implement a substring search against a lookupset. Assuming you have a patient id in your dataset that is unique for each patient (I hope your group isn't on the name) then...
=Iif(InStr(Join(Lookupset(Fields!patientid.Value, Fields!patientid.Value, Fields!LocationsID.Value, "dataset"), ","), "WELL") > 0, "Y", "N")
Which says, "Search through the dataset for all rows related to my patientid, join every location into a comma deliminated string, search the string for the text "WELL" and return "Y" if it's found.
Obviously if you have locations in your dataset like "WELLY", these will become false positives and you'll have to implement some more nested logic. Try appending a value (perhaps !) to the lookupset return field so that you can search for "WELL!" or some other terminator character.
I am the beginner on the usage of MS Access.
I am going to build a program in the MS Access 2007 which can scanning some specific wordings listed in the data table from a paragraph.
For example, I want to know the occurrences of the transportation taken by the students.
(i) Therefore, I set the words "school" and "Bus" in my datatable [tableA] fields [trans].
(ii) Then, I input "I go to school by bus." in the [Input] boxes.
(iii) The result i want is that the sun of occurrences of both "school" and "Bus" can be showed in the another one textbox.
In the current situation, i just create a query [QueryA] from the [tableA] and directly use the count function in the query form. And then set the criteria as " Like [forms]![tableA]![Input] & "*" ".
However, it can just match the words in the [Input] with the final count result of the Query.
Ths a lot for providing any advice, including new direction.
I hope I understand what you're asking here, so I'll give it a stab with the information that you've provided. In your SQL window, try the following script: NOTE: You will need to change the WHERE clause to reflect your Input box(s)
SELECT Count(*) AS Expr1
FROM tableA
WHERE tableA.[trans] Like '%[Input]%;