我想插入一些数据到mydatabase.sqlite,但我有一个问题。插入数据时没有错误消息,但随后我打开数据库,但无法看到任何数据。没有任何数据。SQLite插入数据在目标c
这是addCoffee方法MyClass的:
if(addStmt == nil) {
const char *sql = "insert into records(Date, Latitude, Longitude) Values(?, ?, ?)";
if(sqlite3_prepare_v2(database, sql, -1, &addStmt, NULL) != SQLITE_OK)
NSAssert1(0, @"Error while creating add statement. '%s'", sqlite3_errmsg(database));
}
sqlite3_bind_text(addStmt, 1, [Date UTF8String], -1, SQLITE_TRANSIENT);
sqlite3_bind_double(addStmt, 2, [Latitude doubleValue]);
sqlite3_bind_double(addStmt, 3, [Longitude doubleValue]);
if(SQLITE_DONE != sqlite3_step(addStmt))
NSAssert1(0, @"Error while inserting data. '%s'", sqlite3_errmsg(database));
else
//SQLite provides a method to get the last primary key inserted by using sqlite3_last_insert_rowid
recordID = sqlite3_last_insert_rowid(database);
//Reset the add statement.
sqlite3_reset(addStmt);
发送数据:
iDailyAppDelegate *appDelegate = (iDailyAppDelegate *)[[UIApplication sharedApplication] delegate];
//Create a MyClass Object.
MyClass *coffeeObj = [[MyClass alloc] initWithPrimaryKey:0];
coffeeObj.Date = dateInString;
NSDecimalNumber *temp = [[NSDecimalNumber alloc] initWithString:first];
coffeeObj.Latitude = temp;
NSDecimalNumber *temp2 = [[NSDecimalNumber alloc] initWithString:second];
coffeeObj.Longitude = temp2;
[temp release];
coffeeObj.isDirty = NO;
coffeeObj.isDetailViewHydrated = YES;
//Add the object
[appDelegate addCoffee:coffeeObj];
是否有可能你执行'BEGIN TRANSACTION'如此没有执行相应的“COMMIT”? –
抱歉,我能做什么,我不明白你? –
请帮我! –