ms-access-2007

问题 I am getting an error indicating the wrong number of arguments when I run the following query: SELECT population_postcodes.*, target_postcodes.*, SQR( EXP(population_postcodes.longitude- target_postcodes.longitude, 2) + EXP(population_postcodes.latitude-target_postcodes.latitude, 2) ) as distance FROM population_postcodes INNER JOIN target_postcodes on Population_postcodes.Population_postcode = Target_postcodes.Target_postcode; Could anyone please suggest how I can fix this? I have also tried

问题 I have an Access database that I am currently working on. I have 2 tables and I want to combine both tables. The issue I am coming across is that the field I am using to match both tables is not always the same, meaning I will have to use a wildcard and I am not too sure on how to do that. The names of my two tables are: ACW,Hold QMT Query will have the following fields: RM Field that is present on both tables. ACW comes from table ACT,Hold Avg Hold comes from table ACT,Hold Score comes from

问题 I have an example table below: +----+----+------+ |var1|var2|merged| +----+----+------+ |a |b |a | +----+----+------+ | |c |c | +----+----+------+ | |x |x | +----+----+------+ |c |d |c | +----+----+------+ I want to merge var1 and var2 's values with the rule that whenever var1 has a value, it should be picked over var2 . My code below does not achieve it and I am at a loss on how to implement this. SELECT id, var1 & var2 AS merged FROM myTable All this code does is concatenated var1 and var2

问题 I am trying to insert multiple rows in a listitems to a database using parameters. But it won't give me any errors, and also won't insert any data in the table. does anyone have any ideas on this one? strSQL = "insert into tbltrans2 (transid,itemcode,itemname,qty,price,[total],btw) values ( ?,?,?,?,?,?,?)" Using cn As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Application.StartupPath + "\\POS.mdb"), _ cmd As New OleDbCommand(strSQL, cn) cmd.Parameters.Add("?",

问题 I have a legacy Access 2003 database file that must remain in that format to preserve its menus and toolbars. I have recently moved to Access 2007 in my build environment and will be deploying the compiled Access 2003 program with the Access 2007 runtime. In Access 2003, I could script the process of creating an MDE with the Access Developer Extensions (WZADE.mde) using the command line and an .xml file of build preferences (without creating an install package). The Access 2007 developer

问题 I'm setting 12 TextBox ControlSources in my Form from VBA using the following : ... Me.Oct.ControlSource = "=DSum('GBPValue', 'MF YTD Actual Income & Adret', 'Month=10 AND Org_Type=[Key]')" Me.Nov.ControlSource = "=DSum('GBPValue', 'MF YTD Actual Income & Adret', 'Month=11 AND Org_Type=[Key]')" ... [Key] is the name of a textbox in the form When the form loads up i get some odd behavior - all of the summary form text boxes are blank as are all the dlookup text boxes if i then click on one of

问题 I'm trying to run the following query against an Access 2007 database in C#: OleDbCommand command = new OleDbCommand(); command.Connection = connect; command.CommandText = "SELECT * FROM MSysQueries"; OleDbDataReader reader = command.ExecuteReader(); And I get the error: Record(s) cannot be read; no read permission on 'MSysQueries'. Is it possible to do this? If so how? I am under the impression it is possible to do this but I'm not completely sure. 回答1: As mentioned in the similar question

问题 I have a listbox in Access 2007 that is linked to a table. That table has 4 columns but I only have 2 of those columns visible in the listbox. I use the loop command to identify the selected row but I can only view the contents of the visible columns. I display the visible column when I find it so at least I know I have the right row. It is my belief that the other 2 hidden columns are technically available to me because I see them referenced when I view the SQL associated to the listbox. So

问题 I made a software with a MS Access database, stored in Program Files and i can't change data in this database because it's saved in Program Files. It's working in other locations, but I need the database in Program Files. It says: "This database has been opened read-only." Does anyone know how to solve this problem? 回答1: Use Inno Setup to create an install of your Access database file to, as David points out, the users Application Data folder. The Inno Setup Third-Party Files page is a list

问题 I need to create a small "application" using ms access 2007. All I need is to create a form that will take care of input/output related to a few db tables. I created the tables: patients, treatments and labresults. Primary key in patients table is ID, and it serves as a foreign key in treatments and labresults tables, where it is named patientID. I also created a form that I mentioned in the beginning of this question. It has multiple tabs. 1st tab opens/creates the patient, and the second