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我正在做一個應用程序，我想要使用更新查詢？如何更新Sqlite最後在iphone中插入行ID？
在我的應用我有兩個階段來完成註冊程序，第1頁
我有登記表和一個提交按鈕？
點擊提交按鈕所有的細節應該插入到我的sqlite表。
in page2我有確認頁面和一個編輯並繼續按鈕？
保存在表格中的所有值應由用戶在此頁面上查看，如果他想要做出任何更改，他應該可以做到這一點。一旦用戶編輯了一些值，然後按繼續按鈕，所有的值插入應該更新？
但我嘗試這樣做，但我無法更新最後的輸入值？
下面是我的代碼第1頁插入代碼：
-(void)submit
{
if(([UserName.text isEqualToString:@""]) || ([Password.text isEqualToString:@""]) ||
([ConfirmPassword.text isEqualToString:@""]) || ([Name.text isEqualToString:@""]) ||
([Email.text isEqualToString:@""]) || ([ContactNO.text isEqualToString:@""]) ||
([MobileNo.text isEqualToString:@""]) || ([Address.text isEqualToString:@""]))
{
UIAlertView *ErrorAlert = [[UIAlertView alloc] initWithTitle:@"Error!!"
message:@"Please fill in the details." delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil, nil];
[ErrorAlert show];
[ErrorAlert release];
}
else
{
Confirmation_form *conForm = [[Confirmation_form alloc] initWithNibName:@"Confirmation_form" bundle:nil];
conForm.data = UserName.text;
conForm.data1 = Password.text;
conForm.data2 = ConfirmPassword.text;
conForm.data3 = Name.text;
conForm.data4 = Email.text;
conForm.data5 = ContactNO.text;
conForm.data6 = MobileNo.text;
conForm.data7 = Address.text;
sqlite3_stmt *statement;
const char *dbpath = [databasePath UTF8String];
if (sqlite3_open(dbpath, &test1DB) == SQLITE_OK)
{
NSString *insertSQL = [NSString stringWithFormat:@"INSERT INTO test(UserName, Password, ConfirmPassword, Name, Email, ContactNO, MobileNo, Address) VALUES (\"%@\", \"%@\", \"%@\", \"%@\", \"%@\", \"%@\", \"%@\", \"%@\")",UserName.text, Password.text, ConfirmPassword.text, Name.text, Email.text, ContactNO.text, MobileNo.text, Address.text];
const char *insert_stmt = [insertSQL UTF8String];
sqlite3_prepare_v2(test1DB, insert_stmt, -1, &statement, NULL);
if(sqlite3_step(statement) == SQLITE_DONE)
{
//status.text = @"Contact added";
UserName.text = @"";
Password.text = @"";
ConfirmPassword.text = @"";
Name.text = @"";
Email.text = @"";
ContactNO.text = @"";
MobileNo.text = @"";
Address.text = @"";
sqlite3_last_insert_rowid;
rowID = sqlite3_last_insert_rowid(test1DB);
NSLog(@"last inserted rowId = %d",rowID);
sqlite3_reset(statement);
sqlite3_finalize(statement);
sqlite3_close(test1DB);
[self.navigationController pushViewController:conForm animated:YES];
}
}
}
}
從上面的代碼，我能夠獲得該行的ID，但我不能夠使用ROWID更新詢問
以下是我的代碼頁2更新代碼：
-(IBAction)Update;
{
sqlite3_stmt *statement;
const char *dbpath = [databasePath UTF8String];
if (sqlite3_open(dbpath, &test1DB) == SQLITE_OK)
{
NSString *insertSQL = [NSString stringWithFormat:@"UPDATE test SET UserName='%@',Password='%@',ConfirmPassword='%@',Name='%@',Email='%@',ContactNO='%@',MobileNO='%@',Address='%@'WHERE ID='%@'",UserName.text,Password.text,ConfirmPassword.text, Name.text, Email.text, ContactNO.text, MobileNo.text, Address.text, sqlite3_last_insert_rowid(test1DB)];
const char *insert_stmt = [insertSQL UTF8String];
sqlite3_prepare_v2(test1DB, insert_stmt, -1, &statement, NULL);
if(sqlite3_step(statement) == SQLITE_DONE)
{
sqlite3_step(statement);
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"UIAlertView" message:@"Record added" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
[alert show];
[alert release];
alert = nil;
sqlite3_finalize(statement);
sqlite3_close(test1DB);
}
else {
sqlite3_step(statement);
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"UIAlertView" message:@"Record notadded" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
[alert show];
[alert release];
alert = nil;
}
}
是你的rowID變量在同一個類中全局聲明和更新動作？ –
變量rowid是全局聲明，但更新操作是在另一個視圖或頁面 –