Android Studio (SQLite Database), I am gonna to add a LineNo to a table and how can I make it will auto increment by 1?

Question

I am gonna to add a LineNo to a table and how can I make it will auto increment by 1? LineNo is no the primary key so how I make it will will auto increment by 1?

This is what I tried, but no working: String query_edit = "UPDATE " + TABLE_NAME_INV_DTL + " SET " + COL15_INV_DTL + "= +1 "; db.execSQL(query_edit);

Answer 1

Try this

String query_edit = "UPDATE " + TABLE_NAME_INV_DTL + " SET " + COL15_INV_DTL + "=" + COL15_INV_DTL + " +1 "; 
db.execSQL(query_edit);