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我試圖通過重新使用準備好的語句,使用事務和參數化查詢來提高保存代碼的效率。但是,每當我運行保存代碼時,只有一條記錄在我的表中結束。我認爲它與sqlite3_step的放置位置有關。SQLite3帶參數的多個插入;只插入一條記錄
但我也希望其他的一些眼睛能夠查看我的代碼,並讓我知道我是否正確地做事;我找不到一個例子這樣任何地方,所以它是大約六個論壇的帖子和堆棧溢出主題雜亂我在各學科中發現:
//Planet Data
//Delete previous save data
dData("Generated_Planets", bErrors);
if (plData.size() > 0)
{
sqlite3_exec(dBase, "BEGIN TRANSACTION", NULL, NULL, &error);
sqlStr = "Insert Into Generated_Planets (ID, Name, Affiliation, Disposition, Race, Player_Owned, Is_Destroyed, EKS, Planet_Size, Current_Pop, Max_Pop) Values (?,?,?,?,?,?,?,?,?,?,?);";
if (sqlite3_prepare_v2(dBase, sqlStr.c_str(), sqlStr.size(), &statement, 0) == SQLITE_OK)
{
cout << "Saving planet data";
//Save new data
for (i = 0; i <= plData.size(); i++)
{
if (i == plData.size())
{
finalize(statement, bErrors);
}
else
{
sqlI1 = plData.at(i).pID;
sqlS1 = plData.at(i).pName;
sqlS2 = plData.at(i).pAffiliation;
sqlS3 = plData.at(i).pDispo;
sqlS4 = plData.at(i).pRace;
sqlI2 = plData.at(i).bIsPOwned;
sqlI3 = plData.at(i).bIsDestroyed;
sqlF1 = plData.at(i).pEKS;
sqlF2 = plData.at(i).pSize;
sqlLLI1 = plData.at(i).pCPop;
sqlLLI2 = plData.at(i).pMPop;
find = "'";
temp = "\"";
foundAt = sqlS1.find(find);
if (foundAt != string::npos)
{
sqlS1.replace(foundAt,1,temp);
}
//Bind parameters
sqlite3_bind_int(statement,1,sqlI1);
sqlite3_bind_text(statement,2,sqlS1.c_str(),sqlS1.size(),SQLITE_TRANSIENT);
sqlite3_bind_text(statement,3,sqlS2.c_str(),sqlS2.size(),SQLITE_TRANSIENT);
sqlite3_bind_text(statement,4,sqlS3.c_str(),sqlS3.size(),SQLITE_TRANSIENT);
sqlite3_bind_text(statement,5,sqlS4.c_str(),sqlS4.size(),SQLITE_TRANSIENT);
sqlite3_bind_int(statement,6,sqlI2);
sqlite3_bind_int(statement,7,sqlI3);
sqlite3_bind_double(statement,8,sqlF1);
sqlite3_bind_double(statement,9,sqlF2);
sqlite3_bind_int64(statement,10,sqlLLI1);
sqlite3_bind_int64(statement,11,sqlLLI2);
sqlite3_step(statement);
cout << ".";
}
}
}
else
{
*bErrors = true;
createBInfo();
d.createBReport("SQL Code 2",sqlite3_errmsg(dBase),bLocale + to_string(__LINE__),bTDate,"./SC_Log.txt");
}
sqlite3_exec(dBase, "END TRANSACTION", NULL, NULL, &error);
sFlags_Temp.push_back(saveFlag());
sFlags_Temp.at(sFlags_Temp.size()-1).sfName = "GPlanets";
sFlags_Temp.at(sFlags_Temp.size()-1).sfValue = 1;
cout << "Done" << endl << endl;
}