如何在 iPhone 的 sqlite 中绑定当前日期

Question

Does anyone have an idea how to insert current date or bind the current date in sqlite for iphone app?

I have used this, to store a String:

sqlite3_bind_text( compiledStatement, 3, [Gjourney UTF8String], -1, SQLITE_TRANSIENT);

Is there any way to store the current date? In my datebase I make the Table hello in which i have the column startdate with a DATETIME dataType.

Thanks

Answer 1

I think try using like this it may help you.

dateExpires = [NSDate dateWithTimeIntervalSinceNow: sqlite3_column_double(compiledStatement, 3)];

Cheers.....

Answer 2

SQLite understands date/time values entered in the following formats. If the format is invalid, SQLite will not give an error, but the function call will return null.

1. YYYY-MM-DD
2. YYYY-MM-DD HH:MM
3. YYYY-MM-DD HH:MM:SS
4. YYYY-MM-DD HH:MM:SS.SSS
5. YYYY-MM-DDTHH:MM
6. YYYY-MM-DDTHH:MM:SS
7. YYYY-MM-DDTHH:MM:SS.SSS
8. HH:MM
9. HH:MM:SS
10. HH:MM:SS.SSS
11. now
12. DDDD.DDDD (julian day as floating-point number)

So code as follows,

NSDate *today=[NSDate date];
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:@"YYYY-MM-dd hh:mm:ss"];
NSString *dateString=[dateFormat stringFromDate:today];
[dateFormat release];

Just insert this dateString value, SQLite will recognize it as a date.

Answer 3

NSString *date = [NSDate date];

it returns currunt date. save this date string to SQlite;