Code snippet to get field value from MS Access DB file with strings of Memo datatype

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Hello All,

I have a MS Access DB file ("Notice.mdb") which has 29 columns & 20 rows of strings data of Memo datatype.

I need a code snippet in VC++ using which i can retrieve the strings and store it in some CString array.

Please help

Thanks & regards
Dinesh

Posted 4-Jul-13 0:25am

dinesh_redhawk

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Cool Dude-P · Answer 1 · 2013-08-02T05:37:00

#include "afxdao.h"

CString lpszFile = L"MyTables.mdb";
CDaoDatabase db;
db.Create(lpszFile);
db.Open(lpszFile);

db.Execute(L"CREATE TABLE MyTable (Field1 VARCHAR(20), Field2 VARCHAR(20));");

db.Execute(L"INSERT INTO MyTable(Field1, Field2) VALUES ('value11', 'value12');");
db.Execute(L"INSERT INTO MyTable(Field1, Field2) VALUES ('value21', 'value22');");

CDaoRecordset recordset(&db);

recordset.Open(AFX_DAO_USE_DEFAULT_TYPE, L"SELECT * FROM MyTable;", 0);

COleVariant olevarValue1;
COleVariant olevarValue2;

while(!recordset.IsEOF())
{
olevarValue1.ChangeType(VT_BSTR, NULL);
olevarValue2.ChangeType(VT_BSTR, NULL);
recordset.GetFieldValue(L"Field1", olevarValue1);
recordset.GetFieldValue(L"Field2", olevarValue2);
printf("Value1: %s\n", (LPCTSTR)olevarValue1.bstrVal);
printf("Value2: %s\n", (LPCTSTR)olevarValue2.bstrVal);
recordset.MoveNext();
}