java - Sqlite 更新操作可以增加现有值吗？

Question

"UPDATE " + DatabaseFıelds.TABLE_NAME + 
" SET " + DatabaseFıelds.SUBJECT_PROGRESS + " = " + 
point + " WHERE " + DatabaseFıelds.SUBJECT_ID + " = " + id; 

此查询更新我的值，但我希望它添加到现有值。我该如何解决这个问题？

标签： javaandroiddatabasealgorithmsqlite

Answer 1

它的作品谢谢你forpas"UPDATE " + DatabaseFıelds.TABLE_NAME + " SET " + DatabaseFıelds.SUBJECT_PROGRESS + " = " + DatabaseFıelds.SUBJECT_PROGRESS + " + " + point + " WHERE " + DatabaseFıelds.SUBJECT_ID + " = " + id;