题目内容
（请给出正确答案）
A、insert into userinfo(uname,password) values('张三','123');
B、insert into userinfo(uname,password) values(张三，123)；
C、insert into userinfo values(null,'张三','123');
D、insert into userinfo(password,uname) values('123','张三')；
简答题官方参考答案
（由简答题聘请的专业题库老师提供的解答）
更多“现有用户信息表userinfo，表结构如下：id integer 主键，自增长；uname text 用户名；password text 密码。 如果想添加用户名为张三，密码为123的用户，下面SQL…”相关的问题
A、private void update(SQLiteDatabase db){ ... String sql="update from userinfo set password = '321' where uname='李四'"; db.execSQL(sql); ... }
B、private void update(SQLiteDatabase db){ ... String sql="update userinfo set password = '321' where uname='李四'"; db.execSQL(sql); ... }
C、private void delete(SQLiteDatabase db){ ... ContentValues cv = new ContentValues(); cv.put("password","321"); db.update("userinfo",cv,"uname = ?",new String[]{"张三"}) ... }
D、private void update(SQLiteDatabase db){ ... String sql="update userinfo password = '321' where uname='李四'"; db.execSQL(sql); ... }
A、private void update(SQLiteDatabase db){ ... String sql="update from userinfo set password = '321' where uname='李四'"; db.execSQL(sql); ... }
B、private void update(SQLiteDatabase db){ ... String sql="update userinfo set password = '321' where uname='李四'"; db.execSQL(sql); ... }
C、private void delete(SQLiteDatabase db){ ... ContentValues cv = new ContentValues(); cv.put("password","321"); db.update("userinfo",cv,"uname = ?",new String[]{"张三"}) ... }
D、private void update(SQLiteDatabase db){ ... String sql="update userinfo password = '321' where uname='李四'"; db.execSQL(sql); ... }
A、private void select(SQLiteDatabase db){ ... String sql="select * from where uname='李四'"; Cursor cursor = db.rawQuery(sql,null); ... }
B、private void select(SQLiteDatabase db){ ... String sql="select * from where uname=?"; Cursor cursor = db.rawQuery(sql,new String[]{"李四"}); ... }
C、private void select(SQLiteDatabase db){ ... Cursor cursor = db.query("userinfo",new String[]{"id","uname","password"},"uname=?",new String[]{"李四"},null,null,null,null); ... }
D、private void select(SQLiteDatabase db){ ... Cursor cursor = db.query("userinfo",new String[]{"id","uname","password"},"uname=?",null,null,null,null,new String[]{"李四"}); ... }
A、private void delete(SQLiteDatabase db){ ... String sql="delete from userinfo where uname='张三'"; db.execSQL(sql); ... }
B、private void delete(SQLiteDatabase db){ ... db.delete("userinfo","uname = ?",new String[]{"张三"}) ... }
C、private void delete(SQLiteDatabase db){ ... String sql="delete from userinfo where uname=张三"; db.execSQL(sql); ... }
D、private void delete(SQLiteDatabase db){ ... String uname = "张三"; db.execSQL("delete from userinfo where uname='"+uname+"'"); ... }
A、/sdcard/packagename/shared_prefs
B、/data/data/packagename/shared_prefs
C、/data/data/packagename/database
D、/sdcard/packagename/database
A、Context.MODE_PRIVATE;
B、Context.MODE_PUBLIC;
C、Context.MODE_WORLD_READABLE;
D、text.MODE_WORLD_WRITEABLE;
警告：系统检测到您的账号存在安全风险
为了保护您的账号安全，请在“简答题”公众号进行验证，点击“官网服务”-“账号验证”后输入验证码“”完成验证，验证成功后方可继续查看答案！
