ContentResolver用什么方法查询ContentProvider提供的内容()
第1题:
A.add
B.delete
C.update
D.query
第2题:
A.select()
B.retrieve()
C.query()
D.execute()
第3题:
A.Select API
B.Find API
C.Selected API
D.Query API
第4题:
根据你的理解,ContentProvider和ContentResolver两者间是什么关系?
第5题:
EJB3.0中的查询接口是()
第6题:
A user executes a query on the EMPtable, which contains thousands of rows, to get details about employees in one of the departments. The user receives the following error: SQL> SELECT ename FROM emp WHERE deptno=10 ORDER BY sal; SELECT ename FROM emp WHERE deptno=10 ORDER BY sal ERROR at line 1: ORA-01157: cannot identify/lock data file 201 - see DBWR trace file ORA-01110: data file 201:’/u01/app/oracle/oradata/orcl/temp01.dbf’ What is a possible reason?()
第7题:
下列关于ContentProvider的说法错误的是()
第8题:
Staternent类提供3种执行方法,用来执行更新操作的是()。
第9题:
What is necessary for your query on an existing view to execute successfully? ()
第10题:
The underlying tables must have data.
You need SELECT privileges on the view.
The underlying tables must be in the same schema.
You need SELECT privileges only on the underlying tables.
第11题:
第12题:
当外部应用需要对ContentProvider中的数据进行添加、删除、修改和查询操作时,可以使用ContentResolver类来完成。
ContentResolver类提供了与ContentProvider类相同签名的insert、delete、update方法,但是没有提供query方法。
通过ContentResolver对ContentProvider中的数据进行操作的时候,当需要将id为1时记录的name字段值更改为csg的时候,使用ContentValues的put方法,put(name,csg)。
要获取ContentResolver对象,可以使用Activity提供的getContentResolver()方法。
第13题:
A.ContentProvider的作用是实现数据共享和交换
B.要访问ContentProvider,只需调用ContentProvider的增删改查相关方法
C.ContentProvider提供的URI必须以“content://”开头
D.Android对于系统里的音视频、图像、通讯录提供了内置的ContentProvider
第14题:
A. The underlying tables must have data.
B. You need SELECT privileges on the view.
C. The underlying tables must be in the same schema.
D. You need SELECT privileges only on the underlying tables.
第15题:
继承ContentProvider不需要实现()等方法。
第16题:
应用组件获得一个ContentResolver对象的方法名称是什么?ContentResolver访问的数据由什么对象提供?
第17题:
A user executes a query on the EMP table, which contains thousands of rows, to get details about employees in one of the departments. The user receives the following error: SQL> SELECT ename FROM emp WHERE deptno=10 ORDER BY sal; SELECT ename FROM emp WHERE deptno=10 ORDER BY sal * ERROR at line 1: ORA/x7f01157: cannot identify/lock data file 201 /x7f see DBWR trace file ORA/x7f01110: data file 201: ’/u01/app/oracle/oradata/orcl/temp01.dbf’ What is a possible reason?()
第18题:
You are creating the DEPT_SAL data block from the PAYHIST form. Users should be able to enter a valid department ID number, which will then display the employee salary information for that department. This data block could potentially retrieve a large number of records. Since users will probably only view a small number of these records, only 10 records should be fetched at one time. How would you create the data block?()
第19题:
以下关于ContentResolver的说法错误的是()
第20题:
Which two statements about subqueries are true? ()
第21题:
select()
retrieve()
query()
execute()
第22题:
第23题:
A subquery should retrieve only one row.
A subquery can retrieve zero or more rows.
A subquery can be used only in SQL query statements.
Subqueries CANNOT be nested by more than two levels.
A subquery CANNOT be used in an SQL query statement that uses group functions.
When a subquery is used with an inequality comparison operator in the outer SQL statement, the column list in the SELECT clause of the subquery should contain only one column.