开发者

how to insert NSDate in sqlite?

HELLO i am trying to insert Current date in my database table i have a column dateVisited of type datetime

NSDateFormatter *forma开发者_开发知识库tter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"yyyy/MM/dd HH:mm:ss"]; //this is the sqlite's format
NSDate *stringTime = [NSDate date];
NSString *formattedDateStringTime = [formatter stringFromDate:stringTime];

sqlStr = [NSString stringWithFormat:@"Insert into AnwaltHistory (id,dateVisited) values (%d,'%@')",Id formattedDateStringTime];

NSLog(@"%@",sqlStr);
BOOL Res = [appDelegate InsUpdateDelData: sqlStr];
if (Res)
{
   NSLog(@"The Following instrunction is excuted successfully !");
}
else
{
   NSLog(@"The Following instrunction Failed to execute !");
}

the statement executes successfully but when i actually go and check the table it says invalid date... i dont know why as i have printed sqlstr i copy paste from the console and paste it in sqlite and run it manually it runs perfectly fine and has the actual date.... can any one guide me where i am mistaken :S....... please


Why not use:

"Insert into AnwaltHistory (id,dateVisited) values (%d,datetime())",Id


You could try this:

double dateVisited = [[NSDate date] timeIntervalSince1970]; //now
// save dateVisited to your 'dateVisited' field


According to the official documents, the DateTime on SQLITE should be in ISO8601 format (AKA: a string of ("YYYY-MM-DD HH:MM:SS.SSS"))

Therefore, to store the date, you should format your date string, below is a code to help you with this:

NSDate *SourceDate = [NSDate date];  // Or whatever NSDATE you like...
NSDateFormatter *MyDateFormatter = [[NSDateFormatter alloc] init];
[MyDateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss.SSS"];
NSString *SQLiteQuery = [NSString stringWithFormat:@"Insert into YourTable(YourDateField) values ('%@')", [MyDateFormatter stringFromDate:SourceDate]];

This should do it, give's a shout if you need more help,

Cheers H

0

上一篇:

下一篇:

精彩评论

暂无评论...
验证码 换一张
取 消

最新问答

问答排行榜