ORA-01461 error

Question

Hi, all
I am loading data in csv format into the Oracle 9i table. I can proceed with one a few lines, but end up with "ORA-01461 can bind a LONG value only for insert into a LONG column" error message. When I uncomment the setSQL call in earch loop, I got my job done with no complain. I wonder is there something wrong with my source code, or repeatedly bind and execute on a prepared statement are just disallowed.
The csv data is something like:
4409020,xxxxxx,6578B,,
9901400,xxxxx,11CBM,,
4447130,xxxx,6578H,,
And the C++ source:
PFile file("data.csv");
int colCount = 5;
int colTypes[] = {
     occi::OCCI_SQLT_CHR,
     occi::OCCI_SQLT_CHR,
     occi::OCCI_SQLT_CHR,
     occi::OCCI_SQLT_CHR,
     occi::OCCI_SQLT_NUM
int count = 0;
PString line;
PStringArray fields;
// prepare
stmt->setSQL("INSERT INTO m_pckk_hatyu VALUES (:1,:2,:3,:4,:5)");
while (file.ReadLine(line)) {
     //stmt->setSQL((const char *)sql);
     fields = line.Tokenise(",", TRUE);
     csvColCount = fields.GetSize();
     if (colCount != csvColCount) {
          cout << "Skip line " << (count+1) << ": " << line << endl;
          continue;
     // bind
     for (int j=0; j<colCount; j++) {
          if (colTypes[j] == occi::OCCI_SQLT_NUM) {                         // number
               stmt->setNumber(j+1, occi::Number(fields[j].AsReal()));
          } else if (colTypes[j] == occi::OCCI_SQLT_CHR) {               // varchar2
               stmt->setString(j+1, (const char *)fields[j]);
     // execute
     count += stmt->executeUpdate();

Answer 1

When you are dealing with long varchars, try using the stmt->setMaxParamSize(index, maxSize) API. i beleive oracle has some predefined optimized sizes for the bind variables. Here the index is the index of the bind variable and the maxSize is the size of the varchar.