Android SQLite relative increase of column value

Question

Using SQLite db.update function, we can modify a record giving absolute values for records satisfying where clause. For ex:

ContentValues cv = new ContentValues();
cv.put("id",111);
cv.put("Field1",10);
cv.put("Field2",100);

But, how do I say Field1 = Field1 + 5, without using a separate select query to fetch existing Field1 value or using db.execSQL(updateQuery) ? (I deliberately want to avoid db.execSQL for update operations)

I want to avoid a separate query because, if multiple threads perform update on same record, there could be concurrency issues.

Answer 1

Use the execSQL() method of SQLiteDatabase :

String increment = "UPDATE "
        + YOUR_TABLE + " SET "
        + YOUR_COLUMN + " = "
        + YOUR_COLUMN + " + 5";

db.execSQL(increment);