ms-access

问题 I am a student How to connect to access database using code ( not using wizard) and retrive values in the textbox in c# using visual studio 2008. I have to extract 3 fields from the access database. Do anybody know. Pl help. 回答1: OleDbConnection is the standard class to query an Access database. Here's an example. 回答2: Start by reading up on ADO.NET and then use the OleDb Data Provider. Once you have the values it should be trivial to put them into a text box. Here is a good ADO.NET tutorial:

问题 I am stuck with something. I am trying to take a long column of dates of which are formated to show also hours and minutes and run a Group query to paste values at the date level without acknowledging the differences in hours and minutes.. Unfortunately I have no clue how to start. The code i put together so far which returns each grouped date with the hour and minutes is as follows: st_sql = "INSERT INTO [tblSearchEngine03] ([Date])" & _ "SELECT [tblSearchEngine02].[Date]" & _ "FROM

问题 Here's the situation: I have a database application that the users run in Access 2003 runtime mode. I have a form that runs in Datasheet view. What I want to be able to do is allow the user to change the sort order while viewing this datasheet form. I have included the normal Access sort ascending/sort descending buttons on a custom toolbar. On my PC, with full version Access installed, these sorting buttons are enabled and I can sort. Here's the problem: My users who run without full version

问题 I have started developing an Access Database for my agency to utilize, starting with incident management. I have been attempting to develop a form that acts as a master index for all of our incidents, as well as a hub to open the investigation's associated form to be used by the investigator. I developed three regular tables and a junction table: Investigations - General Information Target(s) Victim(s) Target/Victim Joiner The General Info Table has a one to many relationship to Targets, and

问题 Sorry for the wall of text guys but this one requires expliaining, way too much code to post... I'm importing fixed width files into access in methods that require data entry. I import the file using transferText into two specs (ones global, the other is special circumstance). I have a function that uses DAO to cycle through all Field objects in TableDefs to build a duplicate table including an AutoIncrement PK so I have the ability to edit these records. I push the data into that table with

问题 I am using ADO to add a record to a MySQL table. The code works fine, and the data is posted to the new record, all except the userid . I can't figure out why. '--------------------------------------------------------------------------------------- ' Procedure : IPhpList_AddHistory ' Author : Adam ' Date : 12/8/2014 ' Purpose : Add a history record to the phpList account. '--------------------------------------------------------------------------------------- ' Private Sub IPhpList_AddHistory

问题 I am using ADO to add a record to a MySQL table. The code works fine, and the data is posted to the new record, all except the userid . I can't figure out why. '--------------------------------------------------------------------------------------- ' Procedure : IPhpList_AddHistory ' Author : Adam ' Date : 12/8/2014 ' Purpose : Add a history record to the phpList account. '--------------------------------------------------------------------------------------- ' Private Sub IPhpList_AddHistory

问题 I have a MS Access form with a Datasheet subform. Using code, I change the ColumnHidden property of various of its columns. But, when I close the form, I'm asked whether to save the table layout of the Datasheet's table. How can I stop the form from asking the user to same the table layout continually? Do I have no choice but to change the Datasheet to a regular subform? 回答1: If you are always hiding the same columns - create a query that only has the columns you want displayed and use that

问题 I'm working for weeks to try to solve this problem. I need to manage a connection between PHP and Microsoft Access Database .mdb. My goal is to create a web page that contain a table with the fields of a database table. But my table has about 30 columns, I would like to insert only 6 of these. Example: Database name: DinamicoWeb Table name: Orders Fields name: Id Ord, Ord Date, Name, Surname, Price, Total This is the code that I managed to write(put inside ALL columns). config.php <?php

问题 I am trying to accomplish the transfer of results from an access table into a blank Excel file that is not going to be saved. Basically I have a button on an access form that when pressed its action is going to just preview all the records in the access table in excel. This is the way the user wants it set up. Right now I have code that will open a blank excel file but I am having troubles writing code that will copy the table from access and paste it into excel, say Cell "A1" Private Sub