Is there type Long in SQLite?
AndroidSqliteAndroid Problem Overview
I want to create a table with the column type Long
instead of Integer
. Is it possible?
Android Solutions
Solution 1 - Android
From the SQLite docs
>INTEGER. The value is a signed integer, stored in 1, 2, 3, 4, 6, or 8 bytes depending on the magnitude of the value.
Since long
is 8 byte and INTEGER
can also save values of 8 bytes, you can use INTEGER
.
Solution 2 - Android
Create the column as an INTEGER
type:
db.execSQL("CREATE TABLE IF NOT EXISTS " + TABLE_A + "("
+ KEY + " INTEGER" + ")");
Put the long
value in INTEGER
column:
contentValues.put(KEY, object.getLongValue());
db.insert(TABLE_A, null, contentValues);
Important: retrieve the value from cursor as LONG
Cursor cursor = db.rawQuery("SELECT * FROM " + TABLE_A, null);
long value = cursor.getLong(0);
Solution 3 - Android
I don't think there is type long. Either you can use INTEGER (or) Numeric. Here is link with supported data types http://www.sqlite.org/datatype3.html
Solution 4 - Android
His above link depicts a 64 bit Integer or Essentially a long, also see https://stackoverflow.com/questions/7337882/sqlite-and-integer-types-int-integer-bigint
and https://stackoverflow.com/questions/2421189/version-of-sqlite-used-in-android
Solution 5 - Android
You just define a column with Integer type. SQLite sets the column length to 1,2,4,8 depending on your input.
Solution 6 - Android
SQLIte will set suitable integer width depend on your input
Solution 7 - Android
the INTEGER can store the long but to get long from cursor should do like this :
int type = cursor.getType(j);
String value = cursor.getString(j);
try {
int intValue = Integer.parseInt(value);
field.set(object, intValue);
} catch (NumberFormatException e) {
long longValue = Long.parseLong(value);
field.set(object, longValue);
}
i use this to store timestamp in sqlite