更多"当用户按Tab键离开文本框时，将激发( )事件"的相关试题:
[单项选择]在下列查询语句中，与SELECT TAB1．* FROM TAB1 WHERE InStr([简历]，"篮球")<>0 功能相同的语句是
A. SELECT TAB1．* FROM TAB1 WHERE TAB1．简历Like "篮球"
B. SELECT TAB1．* FROM TAB1 WHERE TAB1．简历Like "*篮球"
C. SELECT TAB1．* FROM TAB1 WHERE TAB1．简历Like "*篮球*"
D. SELECT TAB1．* FROM TAB1 WHERE TAB1．简历Like "篮球*"
[单项选择]AWT事件分为低级事件和高级事件，下列属于低级事件的是 ( )
A. 鼠标的进入
B. 拖放
C. 窗口关闭
D. 以上都是
[单项选择]若定义TAB DW 1，2，3，4，执行MOV AX，TAB[2]指令后，AX寄存器中的数据是 ( )。
A. 0200H
B. 0002H
C. 0403H
D. 3
[单项选择]为窗体上的控件设置“Tab”键顺序时，应设置控件属性表的哪一项标签的“Tab键次序”选项( )。
A. 格式
B. 数据
C. 事件
D. 其他
[多项选择] Examine the SQL statements that creates ORDERS table: CREATE TABLE orders (SER_NO NUMBER UNIQUE, ORDER_ID NUMBER, ORDER_DATE DATE NOT NULL STATUS VARCHARD2(10) CHECK (status IN ('CREDIT','CASH')), PROD_ID_NUMBER REFERENCES PRODUCTS(PRODUCT_ID), ORD_TOTAL NUMBER, PRIMARY KEY (order id, order date)); For which columns would an index be automatically created when you execute the aboveSQL statement? （）
A. SER_NO
B. ORDER_ID
C. STATUS
D. PROD_ID
E. ORD_TOTAL
F. Composite index on ORDER_ID and ORDER_DATE
[多项选择]Which two statements are correct about routing tables in JUNOS?（）
A. There are separate tables for IPv4 and IPv6 called inet.0 and inet6.0 respectively.
B. They only contain the best possible route to each destination.
C. All running protocols can populate the routing tables at the same time.
D. Routes with the highest preference value are placed as active routes in the routing table.
[单项选择]事件AB发生，意味着事件A与事件B( )。
A. 相互独立
B. 两个同时发生
C. 至少有一个发生
D. 相等
[单项选择]窗口事件是指操作窗口时所引发的事件。下列事件中，不属于窗口事件的是。
A. 打开
B. 关闭
C. 加载
D. 取消
[单项选择] Examine the data from the ORDERS and CUSTOMERS tables. ORDERS ORD_ID ORD_DATE CUST_ID 12-JAN- 100 15 10000 09-MAR- 101 40 8000 09-MAR- 102 35 12500 15-MAR- 103 15 12000 25-JUN- 104 15 6000 18-JUL- 105 20 5000 106 18-JUL- 35 7000 21-JUL- 107 20 6500 04-AUG- 109 10 8000 CUSTOMERS CUST_ID CUST_NAME CITY 10 Smith Los Angeles 15 Bob San Francisco 20 Martin Chicago 25 Mary New York 30 Rina Chicago 35 Smith New York 40 Lind New York Evaluate the SQL statement: SELECT * FROM orders WHERE cust_id = (SELECT cust_id FROM customers WHERE cust_name = 'Smith'); What is the result when the query is executed?（）
A. ORD_ID ORD_DATE CUST_ID ORD_TOTAL 09-MAR- 102 35 12500 18-JUL- 106 35 7000 04-AUG- 108 10 8000
B. ORD_ID ORD_DATE CUST_ID ORD_TOTAL 09-MAR- 102 35 12500 18-JUL- 106 35 7000
C. ORD_ID ORD_DATE CUST_ID ORD_TOTAL 04-AUG- 108 10 8000
D. The query fails because the subquery returns more than one row.
E. The query fails because the outer query and the inner query are using different tables.
[单项选择]The following triggers were defined for table TAB1 in the order shown:CREATE TRIGGER trig_a AFTER UPDATE ON tab1 FOR EACH ROW UPDATE sale_tab SET sale_date = CURRENT DATE; CREATE TRIGGER trig_b AFTER UPDATE ON tab1 FOR EACH STATEMENT UPDATE invoice_tab SET invoice_date = CURRENT DATE; CREATE TRIGGER trig_c AFTER UPDATE ON tab1 FOR EACH ROW UPDATE shipping_tab SET ship_date = CURRENT DATE; CREATE TRIGGER trig_d AFTER UPDATE ON tab1 FOR EACH STATEMENT UPDATE billing_tab SETbilling_date = CURRENT DATE;If an event occurs that causes all of them to activate, which trigger will be activated first?（）
A. TRIG_A
B. TRIG_B
C. TRIG_C
D. TRIG_D
[单项选择] Given the following statements: CREATE TABLE tab1 (col1 INT); CREATE TABLE tab2 (col1 INT); CREATE TRIGGER trig1 AFTER UPDATE ON tab1 REFERENCING NEW AS new1 FOR EACH ROW MODE DB2SQL INSERT INTO tab2 VALUES(new1.col1); INSERT INTO tab1 VALUES(2),(3); What is the result of the following query? SELECT count(*) FROM tab2;（）
A. 3
B. 2
C. 1
D. 0
[单项选择]窗口事件是指操作窗口所引发的事件。下列事件中，不属于窗口事件的是( )。
A. 打开
B. 关闭
C. 加载
D. 取消
