On Mon, 14 Jan 2013 10:02:04 -0000, Regan Heath <re...@netmail.co.nz>
wrote:
I'm more than happy to upload the database file here,but I can't find
how to.May I have your mail address?Appreciated for all the help!
My email address in the from is valid: regan at netmail dot co dot nz
Ok, solved the issue I think.
1. I can connect to your database file with a connection string like..
odbc.connect(r"Driver={Microsoft Access Driver (*.mdb,
*.accdb)};Dbq=<PATHGOESHERE>\db1.mdb;");
Just replace <PATHGOESHERE> with the real path to the file, using single \
characters for path separators.
2. In fetchAll, I have made the following changes:
while(true)
{
char sz_buf[256];
-> wchar[] pszBuf;
SQLINTEGER buflen;
string[] rowData;
-> uint uintVal;
if(SQLFetch(hStmt)==SQL_NO_DATA)
{
break;
}
for(int i=1;i<=col;i++)
{
SQLColAttribute(hStmt, cast(ushort)i, SQL_DESC_NAME,
sz_buf.ptr, 256, &buf_len, cast(void*)0);
SQLColAttribute(hStmt, cast(ushort)i, SQL_DESC_TYPE,
cast(void*)0, 0, cast(short*)0, &colType);
SQLColAttribute(hStmt, cast(ushort)i, SQL_DESC_LENGTH, null, 0,
cast(short*)0, &colLen);
-> switch(colType)
-> {
-> case SQL_INTEGER:
-> SQLGetData(hStmt, cast(ushort)i, SQL_C_ULONG, &uintVal,
uintVal.sizeof, cast(int*)&buflen);
-> rowData ~= to!string(uintVal);
-> break;
-> case SQL_VARCHAR:
-> pszBuf = new wchar[colLen];
-> SQLGetData(hStmt, cast(ushort)i, SQL_C_WCHAR, pszBuf.ptr,
pszBuf.length, cast(int*)&buflen);
-> pszBuf.length = buflen;
-> rowData ~= toUTF8(pszBuf);
-> break;
-> default:
-> break;
-> }
}
v~=rowData;
row++;
}
The key here is that when we ask for the VARCHAR data, we ask for it as
WCHAR (meaning UTF-16 or more likely UCS-2 a subset of UTF-16). We then
have to convert it to UTF-8 using std.utf.toUTF8()
Your original code was asking for it as SQL_C_CHAR, and the odbc layer
knows it cannot represent the Chinese characters in ASCII, so it was
returning a '?' for each of them.
Now I can see (in Visual-D debugger) the Chinese characters in the
rowData, but I can't get it to display correctly on my windows console..
can someone remind me how to do that?
R
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