Resetting Autoincrement in Android SQLite

Question

I have this method which will remove all rows from a table but I also want it to reset the autoincrement so that when a new row is added it will start again. The SQL stateme

Answer 1

I was trying too hard.

Finally, I got this answer code...

Book.deleteAll(Book.class);
book=new Book(user, pass);
book.setId(Long.valueOf(book.listAll(Book.class).size()));
book.save();

this code work like delete and recreating the table.and reset id.

good luck

Answer 2

you'll need single quotes around your table name, i.e.

db.execSQL("DELETE FROM SQLITE_SEQUENCE WHERE NAME = '" + TABLE_NAME + "'");

Answer 3

you can also use delete() method of SQLiteDatabase, like this

db.delete("SQLITE_SEQUENCE","NAME = ?",new String[]{TABLE_NAME});

Answer 4

Building on dldnh's answer:

The following query will set seq to the largest value in the col identity column in the Tbl table, so there is no risk of violating constraints.

UPDATE sqlite_sequence SET seq = (SELECT MAX(col) FROM Tbl) WHERE name="Tbl"