ms-access

问题 Using Access 2003 Table1 ID Name Value 001 Raja 100 002 Ramu 200 004 Raqu 500 008 Ravi 250 ... Here I want to delete the blank rows in my table? Delete from table1 ...? Expected Output ID Name Value 001 Raja 100 002 Ramu 200 004 Raqu 500 008 Ravi 250 ..., Need Query Help. 回答1: Delete from table1 where ID=' ' and Name=' ' and Value=' ' or Delete from table1 where ID is null and Name is null and Value is null 回答2: If your fields alow zero-length strings and can have white space in them, here's

问题 What is the purpose of BOUND COLUMN property of listbox? 回答1: The bound column is a number that represents what column from the row source will be used to set the value of the Control Source (if the list box is bound). Note that you can’t use a column name here. So you don't set the bound column to a column name, but you must use a column number. Another issue here is that the column number starts at 1 (not zero). Note that OFTEN the 1st column length is set to zero. That allows you to have a

问题 I have to create charts with dynamic datasource, I have a code. It does not show error but the graph is also not visible on runtime. Here out_table is the name of my table and ADX is one of its column. code: OleDbConnection con1 = new OleDbConnection(@"PROVIDER=Microsoft.ACE.OLEDB.12.0;DATA SOURCE=RS.accdb"); String sqlo = "Select ADX from " + out_table + ""; OleDbCommand myCommand = new OleDbCommand(sqlo, con1); myCommand.Connection.Open(); OleDbDataReader myreader = myCommand.ExecuteReader

问题 Background: Work on frontend Ms-Access 2010 and backend SQL server 2008 Managment Studio For executing stored procedures I have been using a pretty lengthy process as seen here: in VBA Set Conn = New ADODB.connection Conn.ConnectionString = "Provider=SQLOLEDB.1;Integrated Security=SSPI;....." Conn.Open Set cmd = New ADODB.Command cmd.ActiveConnection = Conn cmd.CommandType = adCmdStoredProc cmd.CommandText = "upGetTestIdForAnalyte" cmd.Parameters.Append cmd.CreateParameter("@WOID", adVarChar,

问题 Background: Work on frontend Ms-Access 2010 and backend SQL server 2008 Managment Studio For executing stored procedures I have been using a pretty lengthy process as seen here: in VBA Set Conn = New ADODB.connection Conn.ConnectionString = "Provider=SQLOLEDB.1;Integrated Security=SSPI;....." Conn.Open Set cmd = New ADODB.Command cmd.ActiveConnection = Conn cmd.CommandType = adCmdStoredProc cmd.CommandText = "upGetTestIdForAnalyte" cmd.Parameters.Append cmd.CreateParameter("@WOID", adVarChar,

问题 I use Access 2007 I have created an OLE field to store JPEG, so I can easily drag them into DATABASE. That works. Trouble is: This field does not dispaly the JPEG but the generic JPEG thumb and I need to double click to open the JPEG and preview it. Is there a way to preview JPEG without having to double click on it ? regards 回答1: Have you considered storing your images entries for your database as 'text', and simply store the path for the image(//pics/mypic.jpg), rather than the image object

问题 I have an Access database with two tables: "contacts" and "country" These contain a number of fields in each. I have a query, "Filter", that brings these two tables together. I want to create a form with as many list boxes as there are fields in the query. A user can open the form and select multiple data from each list box - the row sources are tied back to the two tables above. Then on the click of a button the query would be displayed and filters would be applied dependent on the users

问题 I am trying to execute SQL query within Access database using PYODBC and I get following error: pyodbc.Error: ('07002', '[07002] [Microsoft][ODBC Microsoft Access Driver] Too few parameters. Expected 1. (-3010) (SQLExecDirectW)') The problem is that I am not using any additional parameters. Here is the code: access_con_string = r"Driver={};Dbq={};".format(driver, base) cnn = pyodbc.connect(access_con_string) db_cursor = cnn.cursor() expression = """SELECT F_ARODES.ARODES_INT_NUM, F_ARODES

问题 I'm designing a search form to search my access database based on 4 text fields, Firstname, Surname, Phonenumber and Promo Code. The queries look like: Like "*" & [Forms]![SearchF]![txtFirstName] & "*" Like "*" & [Forms]![SearchF]![txtSurnameName] & "*" Like "*" & [Forms]![SearchF]![txtPhone] & "*" Like "*" & [Forms]![SearchF]![txtPromo] & "*" The search should return all records if all the fields are blank. When you enter some values in the text boxes, the results are narrowed down to

问题 I have a XML file with a structure similar to this: <egh_eval> <eval_set> <eval_id>FLOAT</eval_id> <eval_d> <height>INT</height> <weight>INT</weight> </eval_d> <eval_e> <height>INT</height> <weight>INT</weight> </eval_e> <eval_cred> <credit>FLOAT</credit> </eval_cred> </eval_set> I need to parse the complete file and put it in a table. (Note: eval_d and eval_e actually have more than a hundred attributes each). I tried using MSXML2 however I get stuck when I try to parse the file. By using