How do I count unique items in field in Access query?
Try this Read this for more info.
ms-access
no value given for one or more required parameters
The usual reason for this error is a missing or misspelled value. It seems likely that adminName is Null or a zero-length string.
Unrecognized database format’C:\…..\Employees.accdb for Microsoft Access Database File?
Your computer is missing Microsoft.ACE.OLEDB.12.0 You can get it from here: http://www.microsoft.com/en-us/download/details.aspx?id=13255
Error: “Could Not Find Installable ISAM”
Place single quotes around the Extended Properties: Try it, it really works.
MS-access reports – The search key was not found in any record – on save
Occasionally my MS Access reports: The search key was not found in any record After this happens the solution is to close Access, compact and repair the backend and then delete the record. What causes this and how can I avoid it?
Run-time error ‘3061’. Too few parameters. Expected 1. (Access 2007)
“Run-time error ‘3061’. Too few parameters. Expected 1.” I believe this happens when the field name(s) in your sql query do not match the table field name(s), i.e. a field name in the query is wrong or perhaps the table is missing the field altogether.
“Operation must use an updateable query” error in MS Access
Whether this answer is universally true or not, I don’t know, but I solved this by altering my query slightly. Rather than joining a select query to a table and processing it, I changed the select query to create a temporary table. I then used that temporary table to the real table and it all … Read more
Cannot join on Memo, OLE, or Hyperlink Object
I have a basic table in an Access database. In that table, I have a 10-digit numeric field that is stored as Long Text (leading zeros are significant). I extracted the unique values from that field in the table, and created a new table/field with the same Long Text data type. When I try to … Read more
“You tried to execute a query that does not include the specified aggregate function”
The error is because fName is included in the SELECT list, but is not included in a GROUP BY clause and is not part of an aggregate function (Count(), Min(), Max(), Sum(), etc.) You can fix that problem by including fName in a GROUP BY. But then you will face the same issue with surname. So put both in the GROUP BY: Note I used Count(*) where you wanted SUM(orders.quantity). However, orders isn’t included … Read more
You cannot add or change a record because a related record is required in table ‘table_name’
I just took over access website and I am trying to figure out why when i try to update a record in one table, it provides me with this message. “Microsoft JET Database Engine error ‘80040e21’ How do I find out what the related record is. Thanks for any assistance