foxpro

问题 I want to export data from sql server to dbf file. Below query is working without date. But when I add date it's not working. Please solve my issue, thanks in advance. [Error is : Error in INSERT INTO] Dim dv As DataView = datacls.fnGetdata(sql_X, ClsDataConnection.DMode.D_DataView) Dim dt As New DataTable ' // assuming this is already populated from your SQL Database. Dim buildInsert As StringBuilder = New StringBuilder Dim connectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data

问题 I've got a VBScript that calls a Visual FoxPro Instance and runs a VFP program. Part of this program produces a messagebox. However, if my script is run from the Windows GUI (rather than a Command Prompt), then the message box produced doesn't necessarily come to the foreground. In VBScript I have the following code: Set oVFP = CreateObject("VisualFoxPro.Application") oVFP.DoCmd("Messagebox('Hello World')") Set oVFP = Nothing When I run this script from a DOS prompt, the message box pops to

问题 I've connected to foxpro databases before, but only ones that have both a .dbf and .idx file. I register the Microsoft Ole DB Provider for Visual Foxpro 7.0 and use the following type of code: string sqlSTR = "SELECT * FROM TableName"; string strConnect = @"Provider=VFPOLEDB.1;Data Source=C:\Stuff.dbf;Extended Properties=dBASE IV;" And open the connection. This file, though, has a .dbf and .cdx file (which, reading online seems to be the structure of the database). When I use the connection

问题 I've connected to foxpro databases before, but only ones that have both a .dbf and .idx file. I register the Microsoft Ole DB Provider for Visual Foxpro 7.0 and use the following type of code: string sqlSTR = "SELECT * FROM TableName"; string strConnect = @"Provider=VFPOLEDB.1;Data Source=C:\Stuff.dbf;Extended Properties=dBASE IV;" And open the connection. This file, though, has a .dbf and .cdx file (which, reading online seems to be the structure of the database). When I use the connection

问题 I'm trying to read DBase 7 timestamp values from .dbf files. From DBase format specification I got the following: 8 bytes - two longs, first for date, second for time. The date is the number of days since 01/01/4713 BC. Time is hours * 3600000L + minutes * 60000L + Seconds * 1000L However, I didn't get any correct values via this algorithm. Here are some timestamp values in binary representation and actual datetime values: 42 CC E1 EC 41 FB 64 00 | 27/08/2013 19:12:13 42 CC E1 ED AF 0E 60 00

问题 I am having two tables AORDER for Purchase & BORDER for sale. I want to get pending quantity. Sale orders can have more than 1 records against one purchase order. I do not want to show those order having pending quantities 0. I tried this: SELECT ; aorder.orderid,; aorder.orderdate,; aorder.itemname,; aorder.partyname,; aorder.qty as Purchase,; SUM(border.qty) AS Sale,; SUM(aorder.qty-border.qty) as Pending; FROM ; aorder; LEFT JOIN border ; ON aorder.orderid = border.porderid; GROUP BY ;

问题 I am having two tables AORDER for Purchase & BORDER for sale. I want to get pending quantity. Sale orders can have more than 1 records against one purchase order. I do not want to show those order having pending quantities 0. I tried this: SELECT ; aorder.orderid,; aorder.orderdate,; aorder.itemname,; aorder.partyname,; aorder.qty as Purchase,; SUM(border.qty) AS Sale,; SUM(aorder.qty-border.qty) as Pending; FROM ; aorder; LEFT JOIN border ; ON aorder.orderid = border.porderid; GROUP BY ;

问题 I have to read two .dbf files that came from a VFP server in SQL and manipulate them. They are sitting in a folder on the server. First, I have installed the VFPOLEDB driver, the ODBC driver, and its update. I have successfully created a linked server to the free tables, and tested it in SQL and it says the connection is fine and there's stuff there. I still can't seem to even look at the files. Anyone see anything wrong with my code? Or any tips? Sample code of known working code? I have

问题 First let me say that I am very, very new to FoxPro and finding just the basics a bit of a learning curve. I am attempting to create a program file (.prg) that has some public functions that I can call from my main code. I have added the program file " publicfunctions.prg " and included a simple function that returns a hard coded literal (just trying to make the mechanics work) *!* This function is in the publicfunctions.prg file FUNCTION GetFieldValue RETURN 'This is the value' ENDFUNC Then

问题 I am writing a c++ program to read DBF file of foxpro database .I stumbled upon this date time field of eight bytes.How can i interpret it ? Any help would be highly appreciated ? 回答1: The value is a double The integer part is the day since 1899/12/30 internal const double JulianDay_1899_12_30 = 2415019.0; double d = theValue; in c# return DateTime.FromOADate(d - JulianDay_1899_12_30); see http://msdn.microsoft.com/en-us/library/system.datetime.fromoadate.aspx 来源： https://stackoverflow.com