ms-access-2010 | 易学教程

Query too complex

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问题 I am trying to move some calculations out of Excel into my Access database but i am faced with the 'Query too complex' error when i use above 5 input values. Should i split the query up or is there a more efficient way of working around this?? Any help would be appreciated! Here is the code: SELECT qb1.CompanyName, qb1.Assetname, qb1.Year, ((qb1.DatapointValue*1000000)+qb2.DatapointValue+ qb3.DatapointValue+qb4.DatapointValue+qb5.DatapointValue+ qb6.DatapointValue) AS MPPOilRevised FROM (((((

MS Access 2010 Runtime - Missing Right Mouse Click Context Menu in continuous forms

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问题 I have written an application in MS Access 2003. I can run this using Access 2010, however when I open the same 2003 application with the MS Access 2010 Runtime only, I can no longer use the Right Mouse Click in a continuous form (as I can with the full version) to filter by selection or to sort data etc. Has anyone else encountered this situation? Is this a purposeful design of Access 2010? If so, does anyone know why the Right-Click Content Menu is not working? Otherwise - is it a normal

MS Access Query returns different results depending on whether data local or on network

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问题 I've run into problems before where Access behaved poorly with a split database where the table data was stored on a network drive. I work for a very large tech company, so I'm hoping all the IT stuff is done right. I'm using Access 2010, and running Windows 7 enterprise, service pack 1. Here's the issue today: If I write a very simple query that asks for contract ID's, Contract Titles, Contract numbers, etc.... it all works fine. I can even add in the Abstract, which is of memo type, and

Disable all controls in 'details' section of a MS Access form

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问题 I am looking for some command which will disable all controls present in the 'details' section of an MS Access Form. One way is to disable each and every control independently. I am looking for a control-independent way which would disable all the controls present in the details section of MS Access Form. This feature might be useful, if the form is to be enabled based on some login credentials and the fields for entering credentials is placed in the header section of the form. So, as soon as

OPENDATASOURCE instead of Linked Server

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问题 I have a situation where a linked server to an access DB is crashing my SQL server. Crashed here means adding the linked server causes all other linked servers using that provider to stop working. Any queries to those linked servers hang and don't complete. This situation persists until the server is restarted. However, when I use OPENDATASOURCE to connect to the same data source I don't have this problem. Why would one work and the other crash? The provider I'm using is Microsoft.ACE.OLEDB

Duplicate each row pulled in and add an extra field counting up one day between a given start and end date

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问题 I'm using Microsoft Access and I want to create a query that duplicates each row pulled in from a table with an extra field added on counting up one day between a given start and end date. So if there's 4 days between the start and end date there's 4 duplicate rows returned for each record with only difference being the added date field counting up 1 day. Is this actually possible to do? 回答1: This task is fairly easy if you have a calendar table which includes a row for each date you need.

afterupdate leaves gaps in primary key

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问题 I am developing an access database with some forms that are only used for data entry. The problem is that, when I open any of these forms, access creates a new entry in the underlying table, including incrementing the autonumber primary key of the underlying table, and the autonumber remains incremented even if the user opts not to create the record in the database. This means that there are gaps in the sequence of autonumbers in the actual table due to all the times users open and close the

How to show progress on status bar when running a sequence of queries in MS Access

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问题 I have a macro in MS Access 2010 in Windows 7 which runs a sequence of quite slow Make Table and Update queries. I want it to show on the status bar which query it is running, as the usual message "Run query" does not give the query name. I have written the following VBA: Function RunQueryAndReportStatusWithMsgBox(QueryName As String) Dim RetVal As Variant On Error GoTo ErrHandler PutStatusBarBack MsgBox "About to run query" Application.Echo False, "Executing " & QueryName & " ..." DoCmd

Insert text from a text box into and Access 2010 DataBase using VB.Net

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问题 I have 3 text boxes I am using as a contact form. I am trying to use VB to take this data and add it into my database. I have run debugging and it says the error is in the INSERT INTO string. ![Screen Grab of Debugging] [1]: http://i.stack.imgur.com/ufYPs.png Any ideas? Imports System Imports System.Data Imports System.Data.OleDb Partial Class Contact Inherits System.Web.UI.Page Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click Dim Name As String = txtName

Comparing “Consecutive” Rows in Ms Access

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I have a table that looks like this: ID Subid Time Value Value2 1 1 3 100 2 1 1 4 100 2 2 2 3 200 1 2 2 4 200 2 4 4 4 10 4 5 6 3 10 2 5 6 4 12 2 What i want to do now is just show the entries where there is a difference from time 3 to time 4. So the result should look like this: ID Subid Time Value Value2 2 2 3 200 1 2 2 4 200 2 4 4 4 10 4 5 6 3 10 2 5 6 4 12 2 Conditions for an entry being in the second part are as follows: If there are two entries with the same ID and Subid, but a different month then check if value and value2 are equal. If these are BOTH equal, then remove the entry, else