?
Solved

Jet/Access Query with Parameters on VS2010

Posted on 2011-09-08
2
Medium Priority
?
391 Views
Last Modified: 2012-06-27
In SQL Server, I can create a dataset with parameters by using the prefix @

e.g.
SELECT *
FROM
  (Table1 As T LEFT JOIN
  Table2 As C ON T.CodeID=C.CodeID) LEFT JOIN
  Table3 As U ON T.UserID=U.UserID
WHERE
  T.TimeIn >= @Date
  AND T.TimeIn < DateAdd("n",1,@Date)

Open in new window


I can then access the parameters using the parameter name "Date".

Now I need to make this work with Jet/Access DB as backend. It seems that it does not recognize @ as a prefix for a parameter since it give an error "Error in WHERE clause near '@'". I googled a little and found that jet uses "?" to specify a parameter but the problem is replacing both @Date from the query with ? will create 2 parameters.

What is the 'correct' way to create a parameterized query in a dataset for Jet?
0
Comment
Question by:Thomasian
2 Comments
 
LVL 42

Accepted Solution

by:
dqmq earned 2000 total points
ID: 36507853
I believe it goes like this:


Parameters [Date] Date/Time;
SELECT *
FROM
  (Table1 As T LEFT JOIN
  Table2 As C ON T.CodeID=C.CodeID) LEFT JOIN
  Table3 As U ON T.UserID=U.UserID
WHERE
  T.TimeIn >= [Date]
  AND T.TimeIn < DateAdd("n",1,[Date])
0
 
LVL 22

Author Closing Comment

by:Thomasian
ID: 36507934
The 1st line ("Parameters...") is giving an error.

Enclosing the parameter names with []s works, but I have to manually add the parameters on the dataset.

Thanks
0

Featured Post

Become an Android App Developer

Ready to kick start your career in 2018? Learn how to build an Android app in January’s Course of the Month and open the door to new opportunities.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Simulator games are perfect for generating sample realistic data streams, especially for learning data analysis. It is even useful for demoing offerings such as Azure stream analytics, PowerBI etc.
Sometimes MS breaks things just for fun... In Access 2003, only the maximum allowable SQL string length could cause problems as you built a recordset. Now, when using string data in a WHERE clause, the 'identifier' maximum is 128 characters. So, …
With Microsoft Access, learn how to specify relationships between tables and set various options on the relationship. Add the tables: Create the relationship: Decide if you’re going to set referential integrity: Decide if you want cascade upda…
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…
Suggested Courses

580 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question