单独更新imagepath字段语句执行没有效果。imagepath和description一起更新就有效果,为什么?
代码:
String sql = "update t_pattern set name = ? ,userid = ?,description=?, imagePath = ? where _id = ?";
db.execSQL(sql,
new Object[] { sInstance.getName(), sInstance.getUserid(),
sInstance.getDescription(), sInstance.getImgPath(),
sInstance.getId() });
表创建代码:
sql = "create table t_pattern (_id integer primary key autoincrement,name text default ('name'),userid integer,description text default ('description'),devicenum integer default(0),imagePath TEXT)";
db.execSQL(sql);