MySQL使用connector C/C+讀取二進制字段

MySQL使用connector C/C+讀取二進制字段，兩種方法：

用getString

vector vec;

while (pResultSet->next())

{

string str = pResultSet->getString("data");

vec.insert(vec.end(), str.begin(), str.end());

}用getBlobvector vecALL;

while (pResultSet->next())

{

istream *pis= pResultSet->getBlob("data");

pis->seekg(0, ios::end);

int sz = pis->tellg();

pis->seekg(ios::beg);

vector vecTemp;

vecTemp.resize(sz);

pis->read(&vecTemp[0], sz);

vecALL.insert(vecALL.end(), vecTemp.begin(),vecTemp.end());

}