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Creating Excel Sheets using ODBC

, 12 Jan 2000
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Writing to Excel spreadsheets using only ODBC
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The Problem

Many apps offer an export function. So wouldn´t it be nice to be able to easily save that result as an Excel sheet?

ODBC does make this possible, but there´s one little drawback: Using ODBC the usual way there has to be a registered datasource (DSN) in the ODBC manager.

This is not very useful because you´d have to install that DSN locally on every machine that should support your export function.

The Solution

Omiting the DSN tag in the connect string of CDatabase::OpenEx() gives us the opportunity to refer the ODBC-Driver directly using its name so we don´t have to have a DSN registered. This, of course, implies that the name of the ODBC-Driver is exactly known.

If you just want to test if a certain driver is present (to show the supported extensions in the CFileOpenDlg for example) just try to CDatabase::OpenEx() it. If it isn´t installed an exception gets thrown.

To create and write to that Excel sheet you simply use SQL as shown in the code sample below.

What is Needed

In order to get the code below going you have to

  • have included
  • have an installed ODBC-driver called "MICROSOFT EXCEL DRIVER (*.XLS)"

The Source code

// this example creates the Excel file C:\DEMO.XLS, puts in a worksheet with two
// columns (one text the other numeric) an appends three no-sense records.   
void MyDemo::Put2Excel()
  CDatabase database;
  CString sDriver = "MICROSOFT EXCEL DRIVER (*.XLS)"; // exactly the same name as in the ODBC-Manager
  CString sExcelFile = "c:\\demo.xls";                // Filename and path for the file to be created
  CString sSql;
    // Build the creation string for access without DSN
                sDriver, sExcelFile, sExcelFile);

    // Create the database (i.e. Excel sheet)
    if( database.OpenEx(sSql,CDatabase::noOdbcDialog) )
      // Create table structure
      sSql = "CREATE TABLE demo (Name TEXT,Age NUMBER)";

      // Insert data
      sSql = "INSERT INTO demo (Name,Age) VALUES ('Bruno Brutalinsky',45)";

      sSql = "INSERT INTO demo (Name,Age) VALUES ('Fritz Pappenheimer',30)";

      sSql = "INSERT INTO demo (Name,Age) VALUES ('Hella Wahnsinn',28)";

    // Close database
    TRACE1("Driver not installed: %s",sDriver);


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Comments and Discussions

QuestionExcel 2010--not working Pin
diptipanchal13-Oct-15 21:50
memberdiptipanchal13-Oct-15 21:50 
QuestionNeed explanation Pin
TijanaPavlovic26-Dec-13 21:58
memberTijanaPavlovic26-Dec-13 21:58 
QuestionHow can add column in existing table that also contains some record? Pin
Le@rner15-Nov-11 0:07
memberLe@rner15-Nov-11 0:07 
GeneralMy vote of 2 Pin
Mahdi Nejadsahebi22-Oct-11 3:21
groupMahdi Nejadsahebi22-Oct-11 3:21 
GeneralColumn selection Pin
Roger Handwerker11-Jun-11 0:07
memberRoger Handwerker11-Jun-11 0:07 
QuestionHow to control the column width? Pin
danlei012020-Apr-11 21:59
memberdanlei012020-Apr-11 21:59 
GeneralData type - custom date Pin
florinvistig14-Jan-10 2:51
memberflorinvistig14-Jan-10 2:51 
GeneralGood Work! Pin
prasad0210-Dec-08 7:16
memberprasad0210-Dec-08 7:16 
GeneralProblem with long data field Pin
yongdiego29-Jul-08 15:13
memberyongdiego29-Jul-08 15:13 
GeneralRe: Problem with long data field Pin
Alexander Tsoi24-Oct-08 0:29
memberAlexander Tsoi24-Oct-08 0:29 
QuestionWriting to Multiple Sheets Pin
gana15-Nov-07 23:47
membergana15-Nov-07 23:47 
AnswerRe: Writing to Multiple Sheets Pin
JamesHoward97228-Dec-11 6:43
memberJamesHoward97228-Dec-11 6:43 
General10 for you Pin
IBrana18-Jul-07 18:07
memberIBrana18-Jul-07 18:07 
QuestionAccessing Excel via ADO while the sheet is open Pin
k1n6b0b6-Jun-07 10:35
memberk1n6b0b6-Jun-07 10:35 
QuestionCan I create an Access databae file (.mdb) using the same principle? [modified] Pin
pani6827-Dec-06 23:44
memberpani6827-Dec-06 23:44 
GeneralWhich one first execute please tell me Pin
esambath29-Nov-06 0:02
memberesambath29-Nov-06 0:02 
GeneralI want the code for Ms project Pin
jesukaran john silvester27-Jul-06 20:56
memberjesukaran john silvester27-Jul-06 20:56 
GeneralAdding records Pin
Sangeetha Jayaraman19-Apr-06 3:38
memberSangeetha Jayaraman19-Apr-06 3:38 
GeneralMs Excel Pin
Anonymous25-Oct-05 22:18
sussAnonymous25-Oct-05 22:18 
GeneralInsert into A1 Pin
Juergen Klingler18-Oct-05 0:27
memberJuergen Klingler18-Oct-05 0:27 
Questionwhat to include? Pin
drekon5-Sep-05 10:38
memberdrekon5-Sep-05 10:38 
Questionwhat to include Pin
drekon5-Sep-05 10:38
memberdrekon5-Sep-05 10:38 
can you write the include line please.

Generalso simple so good ! Pin
LeonidPh31-Aug-05 5:02
memberLeonidPh31-Aug-05 5:02 
Generalgood thank u Pin
vikas amin23-Aug-05 22:31
membervikas amin23-Aug-05 22:31 
Questionhow to insert more than one table in same sheet Pin
shsak6-May-04 23:49
sussshsak6-May-04 23:49 

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