data and time

[basti42]

MyDate = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, DateTime.Now.Hour, DateTime.Now.Minute, DateTime.Now.Second, DateTime.Now.Millisecond);
dtDay = MyDate.ToString("MM/dd/yyyy");
dtTime= MyDate.ToString("hh:mm:ss tt");

comm.CommandText = "INSERT INTO tblData(DTE,TME) VALUES(#"dtDay"#,#"dtTime"#)";

i want to separate date and time in the database
i have a message data type mismatch

anyone can solve this?

tnx...

[jmcilhinney]

Firstly, how is this:

MyDate = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, DateTime.Now.Hour, DateTime.Now.Minute, DateTime.Now.Second, DateTime.Now.Millisecond);

an advantage over this:

MyDate = DateTime.Now;

As to your issue, what database are you using and what types are your columns? I'll wager that if you used parameters, as everyone should, then you wouldn't have a problem. My guess is that both your columns are date/time and you'll simply be storing the same value in both columns anyway. Just because you format a column a certain way doesn't mean you're changing the way the data is stored. If this is an Access database then the format only affects how the values are displayed, not how they're stored. In that case you should just save the data in one column.

[basti42]

i saw this in a tutorial...
and learned from you that both MyDate are the same

MyDate = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, DateTime.Now.Hour, DateTime.Now.Minute, DateTime.Now.Second, DateTime.Now.Millisecond);

MyDate = DateTime.Now;

using access database, ok i already delete the DTE and TME columns
i create new DATE_TIME type as general date

insert into tblData(..., DATE_TIME) VALUES(...,#" + MyDate + "#)

but it has still error data type mismatch

[jmcilhinney]

Many beginner tutorials will show, and various tutors will recommend, using string concatenation to build SQL statements. It does more harm than good and this is just one of the many examples. All books and teaching material should just do it the proper way from the start, and the proper way is with parameters:

comm.CommandText = "INSERT INTO tblData(..., DateTime, ...) VALUES (..., @DateTime, ...)";
comm.Parameters.AddWithValue("@DateTime", DateTime.Now);

[basti42]

tnx to you jmcilhinney,

this one works...
insert into tblData(...DATE_TIME) values(..., #"+ DateTime.Now+"#);

[jmcilhinney]

If you're not going to use parameters to insert values into SQL statements then you're just asking to have more issues down the track.

[basti42]

another question...
how can i save data from access to excel or csv file?

[Hack]

another question...
how can i save data from access to excel or csv file?

This might help.