Col质粒

A . Any row inserted or updated through view V1 must meet the condition that col4 > 1000. B . From now on, any row inserted or updated in table T1 must meet the condition that col4 > 1000, but existing rows in the table are not checked. C . At view creation, DB2 will check the data in table T1, and if in any row doesn't meet the condition col4 > 1000, the view creation will be rejected. D . Any row inserted or updated through view V1 must meet the condition that col4 > 1000 and no row in table T1 can be updated such that col4 <= 1000, but new rows in the table can be inserted with col4 <= 1000.

A . When view V1 is created B . Each time the REFRESH VIEW v1 statement is executed C . Each time an SQL statement is executed against view V1 D . Only the first time an SQL statement is executed against view V1

A . A、CRC校验错误 B . B、E1收信号帧失步告警 C . C、以太网口检测到冲突 D . D、表示以太网口为全双工工作模式

A . 半双工模式 B . 全双工模式 C . 数据包冲突 D . 无网络连接

A . F质粒 B . Col质粒 C . r质粒 D . R质粒 E . Vi质粒

A . 更新DB1数据库中表Table1的所有统计信息 B . 在DB1数据库中，使用CREATE STATISTICS 语句为表Table1的列col3创建缺少的统计信息 C . 设置优先值提升选项的值为1 D . 执行如下语句：USE DB1 GO CREATE INDEX index1 ON table1（col3） INCLUDE（col1， col2） WITH （ONLINE = ON） GO E . 执行如下语句 USE DB1GOCREATE INDEX index1 ON table1（col3， col2，col1）

A . A inner join B B . A left join B C . A right join B D . Across join B

A . update table A setcol2=’N’ where col1=1 B . modify table A setcol2=N where col1=1 C . update A set col2=’N’ where col1=1 D . modify A set col2=N where col1=1

A . The operation col1.retainAll（col2） will not modify the col1 object. B . The operation col1.removeAll（col2） will not modify the col2 object. C . The operation col1.addAll（col2） will return a new collection object， containing elements from both col1  and col2. D . The operation col1.containsAll（Col2） will not modify the col1 object.

A．FOREIGN KEY B．UNIQUE C．search_cond D．PRIMARY KEY

A．insertintoT1(col1,col2,col3)values(568,'2-3月-2009','HUNTER') B．insertintoT1values(568,'2-3月-2009','HUNTER') C．insertintoT1(col1,col2,col3)values(568,2-3月-2009,'HUNTER') D．insertintoT1(col1,col2,col3)values('568','2-3月-2009',HUNTER)

The following statements:CREATE TABLE t1 (col1 INT NOT NULL, PRIMARY KEY(col1)); CREATE TABLE t2 (col1 INT NOT NULL, col2 CHAR(1) NOT NULL, PRIMARY KEY (col1, col2), FOREIGN KEY (col1) REFERENCES t1 (col1) ON DELETE CASCADE ON UPDATE RESTRICT); CREATE TABLE t3 (col1 INT NOT NULL, col2 INT NOT NULL, PRIMARY KEY (col1, col2),FOREIGN KEY (col1) REFERENCES t1 (col1) ON DELETE NO ACTION ON UPDATE RESTRICT);INSERT INTO t1 VALUES (1), (2); INSERT INTO t2 VALUES (1, ‘a‘), (1, ‘b‘), (2,‘c‘); INSERT INTO t3 VALUES (1, 100), (2, 200), (2,300);How many rows will be deleted by the following DELETE statement？ DELETE FROM t1 WHERE col1= 1;（） A.4 B.3 C.1 D.0

The phrase "putting their heads together"(Lines 7-8, Paragraph 3)means A．making efforts collectively. B．always getting together. C．thinking in the same way. D．chatting together.

A．布局了一个在小型设备中占3个单位宽度的栅格。 B．布局了一个在中型设备中占3个单位宽度的栅格。 C．布局了一个在大型设备中占3个单位宽度的栅格。 D．布局了一个在大型设备中占5个单位宽度的栅格。

A．将第3列上拉至高电平 B．将任意列上拉至高电平 C．将任意下拉至低电平 D．将第3列下拉至低电平

A．中型显示设备（≥992px且＜1200px）下显示的 B．超小设备手机（＜768px）下显示的 C．大型显示尺寸（≥1200px）的设备下显示的 D．小型设备，平板电脑等（≥768px且＜992px）下显示的

A．另一个或多个收集路由表 B．分机用户 C．拨号控制级 D．中继路由