Queries :: Failing To Filter By Criteria After Return Values From A Function?
May 15, 2013
I have two date fields in a table. I need to find the days between these dates and, if its greater than 7 days, I want to display the record in a report, so far, I have found a hand function that allows me to enter two dates and it returns a long data value representing the number of days in between the two dates. (google "I've developed the following code to count the business days between 2 dates." and its the second one that starts as SOLVED I made no mods to it as it does what i need it to do.
So, i added this to its own module within the data base for use within a query. My test query basically displays the unique ID, the start date and the end date and then displays the values returned from the function. here is the SQL:
SELECT [Main Table].[Unique ID], [Main Table].[Start date], [Main Table].[End Date], (Business_Days_Between([End Date],[Start date])) AS [Days between]
FROM [Main Table]
WHERE ((([Main Table].[Start date]) Is Not Null) AND (([Main Table].[End Date]) Is Not Null));
When ran, this Query works... However, when I enter a criteria like =2 or > 7, it says data type mismatch. I have even attempted the CInt() function to make sure its formated as int but i continue to get the same error.
How to write an expression/criteria in a query that will return only ID numbers with alpha numeric values. Example: My Id field contains both numeric 479621, 680530 and alpha numeric 132NAV100, 174NAV26a values. I want to run the query to return only the alpha numeric values.
I have a function which I want to return the value of a field.
Public Function fieldValue(tblName As String, fldName As String) Dim drs As Recordset Set db = CurrentDb Set drs = db.OpenRecordset(tblName) fieldValue = drs.Fields(fldName).Value drs.Close Set drs = Nothing End Function
I need to return the value obtained, for a specified User identified with a numeric variable.What is the best way forward? - Some sort of filter or DLookup and how to code this?
Trying to run a query where each 4 fields calling a custom function will not just re-run the same custom function over and over again for each field in a single record.
A Function has a huge amount of multiple queries and logic to perform.The Function returns a Integer, Integer, Integer, and optional Integer. Each integer requires a DLookup to lookup a String description value for each individual integer (in each of 4 fields).
The problem is, the DLookup in each column that runs against each of the integers re-run the same function.The result is that a single record, each of the 4 columns returning a single of the 4 values, the complex function is re-run 4 times.
The function is huge, part of a Business Rules Engine. Depending on the Rule-Meta data - it might launch up to a dozen queries and perform logic steps for each record. This is not the ordinary SQL Query.
Imagine if one record (for 1 field) takes 0.1 second to run. By referencing the function in 4 columns, this same function is re-run 4 times (0.4 Seconds) Against 50,000 records - this duplication of re-running the function for each column can really add up.
Possible Solutions: Researched Class Modules - There is a comment that the property Get, Let actually reduce performance. There are huge advantage of code documentation, documentation and centralization.It doesn't claim class modules reduce execution as each propery is returned. It also describes that Class Modules can't be called directly in a Query - unless each property is wrapped in a function.
Function Returns one String with delimiters: e.g 34;54;55;1 This single column goes into a Make Table (runs function one time per record) Then the D-Lookup is run against static local data. This pevented the function from being run over and over across the network linked data.
Final Solution: Eventually, the many hundred lines of VBA code for the Rules Engine will be converted into SQL Server T-SQL Functions on the server.For a Rule Engine development, Access has been great for a rapid protoype development and testing. The TSQL will be a final big step requiring re-coding. It is not currenty my option for the delivery time frame.
If I filter the date, e.g., from April 1st to 30th, I want to get as a result 4 records, one of each client and only the latest record from CLIENT 3 (04/22).
If I filter the date, e.g., from April 1st to 20th, I want to get as a result only the records of clients 4 and 3 from 04/16 (as every other contact is from beyond 04/20).
If I filter the date, e.g., from April 25th to 30th, the return must be only the top 2 records (the only ones after April 25th).
I tried using a query grouping the totals on "process key" and the other cells set as "first", but if I filter from April 1st to 20th, for example, no records from CLIENT 3 gets shown, since Access processed the "first" record request before the date filter, and therefore only considered the contact from 04/22, and as it is later than 04/20, wasn't shown on the query.
I have two tables, TBL_Students and TBL_Email. Each of these tables have a field called Category, which allows multiple values from a list.
Is there a way to return records from TBL_Students where at least one value in TBL_Students!Category = at least one value in TBL_Email!Category.
E.g. If Student A has categories Maths, Physics and Computing;Student B has categories Maths, English and History;Student C has categories Physics and Geography
I would expect: when TBL_Email!Category = Maths,Physics : Students A,B,C to be returned when TBL_Email!Category = Maths : Students A,B to be returned when TBL_Email!Category = Physics,Geography : Students A,C to be returned
I want to return the price from my transactions table for the value '1' in the ID field in this transactions table.
That would be my first field in the query. The next one would be to do a sum of the sellprice field in my 'inventory' table where the buyingID matches a value of '1'.
how to accomplish this? So far, I'm not getting the query to return anything on the relationship.
I have 3 main tables: tblEmployees, tblJobs, and tblProcedures. (See attachment for relationship diagram and additional supplemental tables).A job can have multiple procedures and an employee can have multiple procedures too.
I need to write a query such that when searching by a specific job I can see all of the employees who are qualified for that job. This is done by seeing which employees have the procedures that belong to a job. But here's the catch: since a job can have multiple procedures, if an employee only has some of the procedures I don't want that particular employee to return as a search result. The employee must have ALL the procedures that belong to the selected job.
So for instance if I have:
tblJobs Job1 tblEmployees Emloyee1 Employee2
[code]...
If I search by Job1, I want only Employee2 to return as a result, NOT Employee1.I am at a lost for how to construct the SQL for something like that.
I have a table that has a list of tasks and checkboxes attached to them to be checked once the task is completed. I need to run a query on the table that will only bring me back the tasks with a completion that is false.
Everything that I read online indicates that this is a difficult task for access. Maybe I can accomplish this in SQL view instead of design? If I put false is all of the yes/no fields, the query brings back nothing.
I have a table that contains readings from several pieces of equipment as well as the status of each one. Each record has a timestamp, equipment number, status, etc. What I want is to create a query that will return the latest record for each equipment number. Simplified example table:
There are more than 20 different Equipment numbers and they are read several times per day and sometimes some of them get missed. What I'm looking for is a way to get a list of all the machines with their latest reading so they can tell which machines are running and which are down based on the last time they were read (instead of specifying a date). I can get this for one machine with no problem. I'm having trouble getting it for more than one machine. I tried a union query (with just 2 of the machines included for testing) but it only returns the results from one machine:
Code:
SELECT TOP 1 TestCompressorRoundQuery.LoggedAt, TestCompressorRoundQuery.AssetNumber, TestCompressorRoundQuery.CompressorID, TestCompressorRoundQuery.Status, TestCompressorRoundQuery.CompressorIntegrity, TestCompressorRoundQuery.Notes FROM TestCompressorRoundQuery WHERE (((TestCompressorRoundQuery.AssetNumber)="104399")) UNION ALL
[Code] ....
I'd rather not have to create a seperate query for each machine and then join all of those together! I think perhaps a Union query might not be the correct approach. All the data is coming from only one table.
I have two tables of data. One contains balances for a set of accounts (one unique balance per account, per date). The other contains transactions for a subset of the accounts (multiple records - or possibly none at all - per account, per date)
I'm trying to write a query to return the sum of the transactions from the Transaction table, for each unique account + date combination which is present in the Balance table.
Here is my SQL :
Quote:
SELECT tblBalances.BalDate, tblBalances.AccountID, Sum(tblTransactions.Amount) AS SumOfTransactions FROM tblTransactions RIGHT JOIN tblBalances ON tblTransactions.AccountID = tblBalances.AccountID WHERE (tblTransactions.TransDate=tblBalances.BalDate) GROUP BY tblBalances.BalDate, tblBalances.AccountID;
This works fine with one major problem; if there are NO transactions for any given account + date in the Transaction table, I get no record for that combination in the dataset.
What I need is for the query to return a 0 in those situations (i.e. I should have as many records in my queried dataset as there are in my Balances table, but SumOfTransactions may be 0 for some of those balances)
I've tried the following but it has no effect on the outcome :
Quote:
SELECT tblBalances.BalDate, tblBalances.AccountID, Nz(Sum(tblTransactions.Amount),0) AS SumOfTransactions FROM tblTransactions RIGHT JOIN tblBalances ON tblTransactions.AccountID = tblBalances.AccountID WHERE (tblTransactions.TransDate=tblBalances.BalDate) GROUP BY tblBalances.BalDate, tblBalances.AccountID;
Quote:
SELECT tblBalances.BalDate, tblBalances.AccountID, Sum(Nz(tblTransactions.Amount,0)) AS SumOfTransactions FROM tblTransactions RIGHT JOIN tblBalances ON tblTransactions.AccountID = tblBalances.AccountID WHERE (tblTransactions.TransDate=tblBalances.BalDate) GROUP BY tblBalances.BalDate, tblBalances.AccountID;
I cannot get my query to return result when I enter the month of "June" as search criteria. June is listed in the table and query, every other month is returned except June.
I am trying to create a parameter query to return dates that have 2 years remaining.
For example I have dates for when mortgages expire, and I want to recognise the dates that have two years remaining using a parameter query but I can't figure out if I use DateAdd or DateDiff.
I want to filter the records in a combo box (cboSupplier) using the In() function.
On the form I have an unbound control called "intFilter". It contains the following string: 23, 58
The SQL statement for the combo box is
Code: SELECT SupplierID, SupplierName FROM tblSupplier ORDER BY SupplierName;
In the criteria for field SupplierId I want to use the In() function so that the only records returned by the combo box are those in "intFilter". I have tried
Code: In (Forms![frmSupplierReport]![intFilter]
but this does not work.
If I put: In (23, 58) in the criteria it works, but I cannot hard code it because the string in "intFilter" will change on the fly!
I am using a function to set criteria in a an query. It reads the selected values from a combobox on a form and passes the appropriate value into the sql criteria.
E.g., the sql criteria is set to : like fnCountry()
And the function fnCountry() is something like;
If SelectedCountry = "All" Then fnCountry = "*" else fnCountry = SelectedCountry end if
This works fine for a single selection (SelectedCountry = Africa) but doesn't work if I try to combine multiple selections into the criteria string.
E.g. SelectedCountry = Africa Or Italy
So the criteria would need to be Like "Africa" Or like "Italy"
How else can i build this criteria with multiple values?
I am trying to aggregate IIF functions to give me the total in separate columns (fields) according to the criteria applied however I am getting an error message "You tried to execute a query that does not include the specific expression
as part of an aggregate function, and I cannot find why, The query is as follows:
SELECT
Tbl_Advisor_raw.Month, Sum(Tbl_Advisor_raw.ValuePay) AS ValuePay, Sum(Tbl_Advisor_raw.Salary) AS Salary, Sum(Tbl_Advisor_raw.NetRevenue) AS NetRevenue, IIf(ValuePay>0,(ValuePay/Salary),0) AS pcSpend,
I have query with a calculate field to finds the next service due date but I'm having a problem getting it to only show services due dates in the next 30 days.for some reason I cant add a criteria date()-30...I have to calculate the next service it takes service intervals from maskservicemonths field then find the last service date and generates the next service due date NextService: DateAdd("m",[MaskServiceMonths],[FindLast]).
I have a query in design view that consists of two calculated fields at the moment. One of the calculated fields is supposed to add one year onto a value from another date/time field called "Last_Date."
The expression I've written in the "Field:" box in Query design view is
Expr 2: DateAdd('yyyy',1,[Last_Date])
When I try to run the Query it doesn't work! Access just prompts me to enter a parameter value for Last_Date.
I have a form in which users can enter data in several textboxes to filter the listbox below it, this works great except for the fact that when a record lacks certain data it doesn't show up
Basically there are 4 filters, one for the name/id which works great, as the entries without id's show up just fine but this filter needs to be checked against the other 3 filters, for their group, education and type.
Lets use group as an example.
When a student has no group it should only show up when the group filter is an empty string. AFAIK the wildcards should see to that.
Currently however, when a student has no group, it doesnt show up at all unless I remove the | Like '*' & [groepFilter] & '*' | part from the query.
I've never used complicated WHERE's like this so it might be something very simple. I think I could get it to work using VBA and modifying the rowsource of the listbox from there but this would be a lot easier and I'm curious as to why this doesn't work.
The SQL:
SELECT Student.Studentindex, Student.studentid, Student.studentvn, Student.studenttv, Student.studentan, Student.Groepcode, Opleiding.opleidingsnaam, Opleiding.type FROM Student LEFT JOIN Opleiding ON Student.opleidingid = Opleiding.opleidingid WHERE (((Student.studentid) Like '*' & [naamFilter] & '*') AND ((Student.Groepcode) Like '*' & [groepFilter] & '*')
I want the Query Criteria to pull its value from a control on a form.The form control either has data or is null. (My problems occur when the form control is Null). The field in the table either has data, is null or is blank.
Code: =IIf(IsNull([Forms]![FormName]![FormControl]),"" Or Is Null,[Forms]![FormName]![FormControl])
This works for the records with fields that are blank.
This works for the records with fields that have data.
Code: Like IIf(IsNull([Forms]![FormName]![FormControl]),"*",[Forms]![FormName]![FormControl])
This works for the records with fields that are Null or Blank if i drop the iif function but then i lose the ability to pull criteria data from the form control.
Looking to have a count function which calculate data in sense like if records found on 1-jan-2014 the it give answer as 1, same as records for 2-jan-2014 it should return 2 and so on .. in short the criteria must look and give same number for same dates starting from 1
What I am trying to do is fairly simple i just dont have the ability to correctly code what i want to do.
I want to filter my query based on some criteria in multiple columns. But i only want the query to filter based on the specific criteria if a checkbox has been selected.
Basically i want the criteria for one of the columns criteria to read
IF a check box "Check0" is selected THEN filter the column to only records that = 1 and if "Check2" then filter all records that = 2
I would like to display a report based on the table called "expenses", filtered by:
- "from" (datefrom field) and "to" (dateto field) date on "payment date" field; - multiple criteria on same field called "payment method" (I would like to include only payment methods "check" and "credit card", but not the other payment methods in the field, such as "cash", "transfer", etc.)
For that end I made a query based on the table "expenses", and in the "payment date", in the criteria field, I entered:
between [form]![formname]![datefrom] and [form]![formname]![dateto]
This works fine so far, however when I attempt to add multiple criteria on the "payment method" field, it does not filter accurately any longer. In the same row of the criteria field where I completed the date criteria, I enter "check". In the next row, same field, I enter "credit card".
Since it doesn't work, I tried putting both arguments in the same line as the date criteria (always in the payment method field) as: "check" and "credit card" but still does not work (now it filters the payment method correctly, but the dates filter appear as if I have never completed them).
I was trying to filter a word using Not Like "word" in my query cirteria, some data is blank also, From this record i want to retrieve the result. But when i use Not Like Criteria, filter is working but blanks columns are also filtered.
I want to display all records (including blanks) except what i shown in the criteria.
