How to insert a SQLite record with a datetime set to 'now' in Android application?

user_91440 0
Viewed 230863

Say, we have a table created as: 

create table notes (_id integer primary key autoincrement, created_date date)

To insert a record, I'd use 

ContentValues initialValues = new ContentValues(); 
initialValues.put("date_created", "");
long rowId = mDb.insert(DATABASE_TABLE, null, initialValues);

But how to set the date_created column to now? To make it clear, the 

initialValues.put("date_created", "datetime('now')");

Is not the right solution. It just sets the column to "datetime('now')" text.

content-values sqlite android
10 Answers

You cannot use the datetime function using the Java wrapper "ContentValues". Either you can use :

  • SQLiteDatabase.execSQL so you can enter a raw SQL query. 

    mDb.execSQL("INSERT INTO "+DATABASE_TABLE+" VALUES (null, datetime()) ");

  • Or the java date time capabilities :

    // set the format to sql date time
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); 
Date date = new Date();
ContentValues initialValues = new ContentValues(); 
initialValues.put("date_created", dateFormat.format(date));
long rowId = mDb.insert(DATABASE_TABLE, null, initialValues);
user_99510

In my code I use DATETIME DEFAULT CURRENT_TIMESTAMP as the type and constraint of the column.

In your case your table definition would be 

create table notes (
  _id integer primary key autoincrement, 
  created_date date default CURRENT_DATE
)
user_979760

There are a couple options you can use:

  1. You could try using the string "(DATETIME('now'))" instead.
  2. Insert the datetime yourself, ie with System.currentTimeMillis()
  3. When creating the SQLite table, specify a default value for the created_date column as the current date time.
  4. Use SQLiteDatabase.execSQL to insert directly.
user_795950

To me, the problem looks like you're sending "datetime('now')" as a string, rather than a value.

My thought is to find a way to grab the current date/time and send it to your database as a date/time value, or find a way to use SQLite's built-in (DATETIME('NOW')) parameter

Check out the anwsers at this SO.com question - they might lead you in the right direction.

Hopefully this helps!

user_424710

You can use the function of java that is: 

ContentValues cv = new ContentValues();
cv.put(Constants.DATE, java.lang.System.currentTimeMillis());

In this way, in your db you save a number.
This number could be interpreted in this way: 

    DateFormat dateF = DateFormat.getDateTimeInstance();
    String data = dateF.format(new Date(l));

Instead of l into new Date(l), you shoul insert the number into the column of date.
So, you have your date.
For example i save in my db this number : 1332342462078
But when i call the method above i have this result: 21-mar-2012 16.07.42

user_11830820

Make sure that the field is not marked as 'not null' at the same time as you are trying to insert a default time stamp using the expression "(DATETIME('now'))"

user_37405000
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