SELECT Query To Not Include Record If Already Exists In Another Table
Aug 25, 2015
I have 2 tables:
Query_Rates (Actually this is the result of a query):
Unit
R_Date
Sold_Rate
A
24-AUG-15
145
[code]...
So what I want is a list of all the records from the Query_Rates table where the absolute differences between the sold rates between Query_Rates & [Sent till date] (matching the unit # and the dates) is greater than 1 and the record shouldn't be displayed if it is already present in the [Sent till date] table. But if you notice the first record which has unit A is already mentioned in the "Sent till date" table and shouldn't be repeated again in the query result.
The desired out put should be:
Unit
R_Date
Sold_Rate
X
25-AUG-15
200
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Mar 14, 2014
I am trying to achieve the following - I want to query a table to see if a record exists with a particular field blank. If so, I would like to prompt the user for data.
In real world terms, when assigning an item to a user I would like to first make sure that the item is not already assigned to somebody else. I have 4 fields, UserName, Item, IssueFrom, IssueTo. So when an item is assigned to a user, the first 3 fields are populated and the IssueTo remains blank, until that item is assigned to somebody else.
At the minute I have nothing in place to prevent a user from assigning the same item to multiple users and having multiple records for the same item in the table.
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Feb 6, 2013
I am trying to check if a record exists in a table.
Dim cert As String
Dim existingRec As Variant
existingRec = DLookup("[Certificate]", "[Fire]", "'cert' = 'cert'")
If existingRec = Null Then
Else
MsgBox "The Certificate " & existingRec & " is in the database"
End If
Note - Certificate is a column in the table "Fire"
Problem is that existingRec only finds the first value in the Certificate column, How do I get to check the entire Certificate column?
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Jan 7, 2013
table A has 10 records where 1 field is set as REQUIRED/UNIQUE. the table B does not have any record but have a same field like table A. what I want is that if user insert the record in table B it should first check whether record is already present in table A or not, if already exists it should not accept insertion. and if not already there in table A it should insert record in table B.
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Jul 23, 2005
Hi,
In the current db there are some tables and queries, forms designed around them
With one table Test
http://members.optusnet.com.au/~lukechang/access/table_d.JPG
That has 3 records in them
http://members.optusnet.com.au/~lukechang/access/table.JPG
Just won't show in form anymore, at this stage
http://members.optusnet.com.au/~lukechang/access/form.JPG
The Form was working previously. This is the second time this problem has came up, I thought it would go away if I made a new form and pasted all the controls and codes. It indeed went away for a while until this problem hit me again...
This db is in Access 2000 format and designed using Access 2003
I would appreciate if anyone is willing to point me to the right directions, many many thanks in advance
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Oct 16, 2012
Three tables:
Employee, Sessions, EmployeeSessions.
Many sessions can have many employees - thus the joining table has been included.
When trying to delete an employee from the database using a form, I encounter the error:
The record cannot be deleted or changed because table 'tblEmployeeSessions' includes related records
Is there a problem with my table relationship structure? Or is it 'correct' that as the employee is supervising a session he/she cannot be deleted as this would interfere and maybe mess up the session record?
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Dec 4, 2006
Hello all,
I have a form that looks at my "master table" where users put in general info about a sheet of material.
There are two combo boxes on this form, Batch# and Lot#. They will use the same Batch# and Lot# for many sheets. Every time a new batch and lot are entered, this will bring up a pop-up form where the user needs to take a measurement of that batch and lot for QA. This will go into a different table, where the batch and lot #'s are unique(many of the same batch#'s with different Lot#'s).
After the lot# is entered, I want to run a query in VB that looks for those unique identifiers, and if it doesn't find a record, my pop-up form will run.
This is probably something very easy....... It was a very long weekend and I'm tired of thinking.
Thanks
Scott
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Nov 30, 2013
Based upon a specific date (varDate), I want to select the record that is active (who drives the lease car).
row 1 user X from 13/11/2013
row 2 user Y from 15/11/2013
row 3 user Z from 17/11/2013
I want to find the active user on a date. So on date 13/11/2013 (=varDate), user X is active, on 14/11/2013 (=varDate), user X is still active, on 15/11/2013 (=varDate), user Y is active, on 16/11/2013 (=varDate), user Y is still active and on 17/11/2013 and later, user Z is active.
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Jul 14, 2005
I have 2 identic tables: T1 and T2 which contain only one field NR.
T1 contains the data:
1
2
3
4
5
6
7
8
9
10
11
12
T2 contains the data:
5
6
7
8
A
B
C
D
I want to select all the records found in T1, but not found in T2. So, I wrote the following SQL query:
SELECT T1.NR
FROM T1
WHERE NOT EXISTS
(select T2.NR
from T2);
Unfortunately, this query doesn`t return any record. And the strangest thing is that the query:
SELECT T1.NR
FROM T1
WHERE NOT EXISTS
(select T2.NR
from T2);
have the same effect like:
SELECT * FROM T1,
I mean it returns all the records of T1. I mention that the query was written in Access. What I have to do? Can anybody help me? What solutions do I have? I need a query, not a VBA code!
Thank you in advance!
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May 19, 2006
Hello everyone,
I've made a form where the user can fill in a field ID... and than by clicking on a button another form will be opened with the data of that person (with that ID that's filled in). But if the user fill in an ID that is not currently in the database, there will be also shown another form, but than with no data.. Now I want that if the ID is not known, to display a message or something (like "this ID is not known, try again") and not to open the form..
I've used the following code under the button:
Private Sub openenFormulier_Click()
On Error GoTo Err_openenFormulier_Click
Dim stDocName As String
Dim stLinkCriteria As String
stDocName = "Onderzoek"
stLinkCriteria = "[Qr_Ant_PG.ID]=" & Me![ID]
DoCmd.OpenForm stDocName, , , stLinkCriteria
Exit_openenFormulier_Click:
Exit Sub
Err_openenFormulier_Click:
MsgBox Err.Description
Resume Exit_openenFormulier_Click
End Sub
Hopefully someone can help me!
Thanks,
Ankie
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Jul 13, 2014
I have a basic database design, well I think so anyway. It only has two tables:
1. tblClientInfo
2. tblNotes
Basically each client has multiple notes/comments that can be linked to its record, hence the tblNotes table. The two tables have a one-to-many relationship, being that each customer can have many notes.
I then have two forms:
1. Claims Loss Form
2. tblNotes_DatasheetSub1
So I can enter multiple notes for each customer. The problem I am having is with the report output. It wants to print every note (record) that is linked to the customer. I just need it to print the most recent note for each customer (It would save a lot of wasted paper).
Example of a print out of what it is doing:
John Doe - 123 Easy St - Notes 1 (Most Recent Note)
John Doe - 123 Easy St - Notes 2 (Previous Note)
John Doe - 123 Easy St - Notes 3 (and so on...)
It is printing duplicates of the same customer by adding the additional notes for that same customer on a new line.
How can I tell it to only print the customer one time in the report, and most importantly, to only use the most recent note that is linked to the customer?
I tried using DMax("NoteDate","tblNotes"), but this only returns one customer with one note. I need it to do that for each and all customers.
I have successfully ran a subquery (two queries with one linked to another) by following detailed instructions from this page I found: [URL] .... It works, but the problem is it only shows the latest date for each note, not the actual contents of the note. I feel so close with this option, but so far at the same time.
The TOP n records per group looks promising that I found here: [URL] ...., but I honestly don't know how to implement it correctly in my SQL. I am very much still learning Access and apparently have stumbled into something that is much more complicated than I had originally imagined. I just assumed I could filter the duplicates out, or tell access to print the last or most recent note record for each customer.
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Mar 23, 2006
I have a table (tblSales) with these fields (RecDate, Code, Type, OrderCount).
I also have a linked table (lnkSales) with these fields.
Daily I append the data from the lnkSales to tblSales.
The tblSales table must have a record for each code daily.
These are the codes (01,02,05,07,09,10,15).
I need to automatically add a record for each code that wasn't appended.
For example,
lnkSales contains:
03/22/06 01 Mc 3
03/22/06 02 Mc 1
03/22/06 05 Mc 1
03/22/06 07 Mc 2
03/22/06 10 Mc 1
When appended to tblSales there is no record for code 09 or 15.
I need to add these records to tblSales
03/22/06 09 Mc 0
03/22/06 15 Mc 0
Can someone explain the best way to accomplish this?
Thanks.
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Sep 7, 2004
Hello! I am building a report that tracks excessive call-in's for my hospital's employees. Data is entered into a form which then is stored in the table (duh!) "Call-In's." I have a query that lists all those who have more than 5 call-in's.
Here is the problem: In order to get the sum of callin's per person, I did a totals field in my original query and counted on Name. But now I needed to know the sum of each person's, and so I had to do a cross-tab query that included the name, department, the count (from the first query) and then I summed on the count field. What a mess, right? Also, I added a field for If >5, Yes, No.
I based my Excessive call-in's report on the final (above) query. Like this:
Call In's table
Name, Department, Date of Call in, Call in type
Call-in's query
Name, Department, Date of Call in, Call in type, Count of Name
Call-in's crosstab
Rows: Name (GROUP BY), Department (GROUP BY)
Columns: Count (SUM) and total of Count (SUM)
Excessive Call-In's query
Name, Total of count, iif >5, Yes, No
There are already 54 records in the table, one of which has excessive call in's (more than 5).
Is there a way to run a report that not only lists the person's name and number of call in's but also the date of each one and the call in type? Both of these are fields in the call-in's table.
When I try to combine my Call-In's query with my Excessive Call In's query I get the matrix. Example: I get the same record for however many callin's they have. Thank for your help. I'm so sorry this is complicated. I've got to be doing something wrong, or at least inefficiently. Does any of this make sense? Thanks again.
Kelly (the clueless, but I'm trying)
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Jun 6, 2013
I am trying to run a sql statement in vba in which it selects all the records in a table related to a order Id number. I then want it loop through all the records and check for a check box which is selected. if its selected then "A" variable becomes "1" and i will then run a if statement saying if variable is 1 then run this code else run code b.
The problem I am having is that if there are 4 records the code checks through all of the 4 records and keeps changing the variable so
record 1 variable is 0
record 2 var is 0
" " " 1
" " " is 0
so although the records for a given order number does have a checked box the code wont recognise that.
What I can do or what code I can add my minds gone all blank on this.
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Mar 23, 2006
I have a table (tblSales) with these fields (RecDate, Code, Type, OrderCount).
I also have a linked table (lnkSales) with these fields.
Daily I append the data from the lnkSales to tblSales.
The tblSales table must have a record for each code daily.
These are the codes (01,02,05,07,09,10,15).
I need to automatically add a record for each code that wasn't appended.
For example,
lnkSales contains:
03/22/06 01 Mc 3
03/22/06 02 Mc 1
03/22/06 05 Mc 1
03/22/06 07 Mc 2
03/22/06 10 Mc 1
When appended to tblSales there is no record for code 09 or 15.
I need to add these records to tblSales
03/22/06 09 Mc 0
03/22/06 15 Mc 0
Can someone explain the best way to accomplish this?
Thanks.
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Nov 13, 2013
Form - record source - select a table that when the user enter a value in the field of the form it gets place into the designated table (select a table). my problem is that I have two fields in the form, one field from the data entry is suppose to go to the train table,and another field the data entry is suppose to go to the station table. if I have the form's record source have a designated table for the data entry.It doesn't have two tables for the data entry.
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May 9, 2007
Hello
I am trying to figure out how to make my database check to see if the primary key value is a duplicate of anything ive entered previously and if yes, for my database to bring up that record instead of adding a new record.
I know how to do bring up records using a separate combobox (find) but I cant seem to do it using the primary key field itself.
Many thanks in advance.
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Feb 29, 2008
Hey all,
Tables
ProductsProductBrandSize
PurchaseDetailProductPriceQuantity
Forms
frmFoodSub
Combo BoxesiProductiBrand
TextboxsiSizeiQuantityiPrice
For a couple of days now I've been trying to devise a way to achieve what I want, but I just keep going in circles and hitting errors (thanks to forum members, I've been able to solve most of them.) So, here's what I want to be able to do:
Input a product using the iproduct combo box (which gets its list of values from the Products table); its brand, using the ibrand combo box; and its size using the isize textbox, all in the frmFoodSub form. I then want it to check to see if an exact record already exists (ie. the same product, same brand, same size.)
If it doesn't exist, I want to create it. If it does, I want to do nothing. Then I want the product - either the one I just created, or from a record that already exists matching the iProduct input - to be input into the product field of the PurchaseDetails table. I then want to use iQuantity and iPrice textboxs, already linked to the PurchaseDetails table, to input the newly added product's quantity and price.
I hope my explanation was clear enough. I'd appreciate any help with this you may be able to offer.
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Jan 2, 2014
I have created a form which enbles users to enter data into the fields which will add a new record to my table. What I am trying to do now is to create some kind of validation rule that will check whether the record already exists.
I need it to work this way; there are four input fields- 3 text and 1 is a date filed. When the user enters a new record they are not allowed to create a record that conatins the same combination of values. So if one record has for example filed 1 = 1 field 2 = abc field 3 = def; then no other record can have the same combination of values.
If the user enters an already existing combination there would be an error message saying which field is incorrect. If the combination doesn't exist it would add the record and display a message that the record was successfully added.
How can I do this?
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Sep 10, 2014
I have a form, which has a combo box which a user can select an employee - the combo has three columns (Employee_Number, Surname, Initials) although the Employee_Number column is set at a 0 width, so not visible.
The form is bound to a query which only shows records that are 'Active'
When a user selects and employee in the combo box, I want the AfterUpdate event to check and see if there is already an active record - if there is, throw up an error message and then reveal a couple of buttons giving choices what to do next; if there isn't an active record, reveal three textboxes and then populate those textboxes with the values from the three columns from the combo.
The bit that is sticking me is the search - - I have tried DCount, but can't seem to get it to work
Here is the section of code that I am battling with:
Code:
Dim EmpNo As String
EmpNo = cboEmp_Check.column(0)
If DCount("Employee_Number", "Incomplete_Training", "Employee_Number=" & EmpNo) > 0 Then
MsgBox "Existing", vbOKOnly
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Feb 2, 2014
I have a database that has 2 tables. Table A and Table B. Table A is my primary table. On this table I have 2 fields. The first field is a LOOKUP Field that looks up information from Table B and displays my selection in the field on Table A. Then using DLOOKUP I automatically input the information in the Second Field on Table A based upon the selection from the First Field.
This is working mostly correctly. However, the problem is, when I click on the next record in the table, it automatically changes the Second Field on that record to the same value as the record before it and continues this trend each time I click on another record. This occurs without me making a selection in the first field. If I make a selection in the first field it does change the Second Field to the Correct Value, but then the next Record has the same issue.
How do I go about fixing this so it doesn't change the value with the change of the record. Only change if I change that particular field within that 1 record?is there a way to restrict the Value's in my lookup field to only include the Values from Table B that aren't already in Table A?
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Jun 10, 2005
Hi All,
I hope I can explain what I am trying to achieve..
I have a "Top 1" query (Qry_Avail_StockItem), which selects the next available record in a table.
I have a main form (Frm_MasterStock) with a command button "Add Record".
If the user clicks the "Add Record" button, I need the form to go to the record that the query has selected.
Thanks in Advance..
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Dec 2, 2013
What is the best way to warn a user if a record already exists?I've looked at some examples that use an SQL SELECT statement with a recordset to compare existing records against the one the user is entering but i'm not sure which event this should be triggered by - eg; would it be the control's 'After Update' ,on 'Dirty' or 'Change' event? Would the record have been saved when the 'After Update' is fired- if not then it would not be found in the recordset and the SQL would not work....
how to create a textbox function that automatically searches and completes the textboxt based on exisitng records (like the cell autocomplete feature in Excel)? This could then populate the form with the existing record fields (if found ) and the user could update the record if necessary?
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Feb 23, 2015
I have a table with a 3-part primary key. Have a form with 3 unbound controls corresponding to the 3-part table key.
After the 3 form fields have been entered, I want to search the table to see if a record with the same 3 fields on the table exists. If it does I want to go to another form to enter data for a related table carrying forward the 3 key fields.
If it doesn't I want to go to a different form to keep the 3 fields already entered from form 1 and add additional fields to complete the record.
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Jul 17, 2014
I am trying to check if a record exists, but I keep getting a error!!!
Private Sub Command10_Click()
If DCount("*", "tbl", "[ID] = "") <> 0 Then
MsgBox "This record already exists.
Else
stDocName1 = "McrAddNewRecord"
DoCmd.RunMacro stDocName1
End If
End Sub
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Aug 19, 2014
I currently use
Code:
strSQL = "INSERT INTO tblDepartments (Department) VALUES(txtnewdept)"
To insert new departments into a table, however id like it to check to see if a department name exists in tbldepartments.department to prevent duplicates being added?
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