网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)

Examine the structure of the EMPLOYEES table: EMPLOYEE_ID NUMBER Primary Key FIRST_NAME VARCHAR2(25) LAST_NAME VARCHAR2(25) Which three statements insert a row into the table? ()

  • A、INSERT INTO employees VALUES ( NULL, 'John', 'Smith');
  • B、INSERT INTO employees( first_name, last_name) VALUES( 'John', 'Smith');
  • C、INSERT INTO employees VALUES ( '1000', 'John', NULL);
  • D、INSERT INTO employees (first_name, last_name, employee_id) VALUES ( 1000, 'John', 'Smith');
  • E、INSERT INTO employees (employee_id) VALUES (1000);
  • F、INSERT INTO employees (employee_id, first_name, last_name) VALUES ( 1000, 'John', ' ');

参考答案

更多 “ Examine the structure of the EMPLOYEES table: EMPLOYEE_ID NUMBER Primary Key FIRST_NAME VARCHAR2(25) LAST_NAME VARCHAR2(25) Which three statements insert a row into the table? ()A、INSERT INTO employees VALUES ( NULL, 'John', 'Smith');B、INSERT INTO employees( first_name, last_name) VALUES( 'John', 'Smith');C、INSERT INTO employees VALUES ( '1000', 'John', NULL);D、INSERT INTO employees (first_name, last_name, employee_id) VALUES ( 1000, 'John', 'Smith');E、INSERT INTO employees (employee_id) VALUES (1000);F、INSERT INTO employees (employee_id, first_name, last_name) VALUES ( 1000, 'John', ' ');” 相关考题
考题 M.Jackson suggested the data structure oriented software design method.Which of the following structure can be introduced by using input data structure?A.algorithm structureB.procedure structureC.code structureD.program structure

考题 合法的电子邮件地址是( )。A.Wang.em.hxing.com.cnB.em.hxing.com.cn.wangC.em.hxing.com.on@wangD.wang@em.hxig.com.cn

考题 S7-200PLC有哪几种扩展模块?() A、数字量扩展模块:EM 221、EM222、EM223B、模拟量扩展模块:EM 231、EM232、EM235C、通信模块:EM227D、现场设备扩展模块:CP243;

考题 Examine the structure of the EMPLOYEES table:You need to update the records of employees 103 and 115. The UPDATE statement you specify should update the rows with the values specified below:Which UPDATE statement meets the requirements?()A.B.C.D.E.

考题 Examine the structure of the EMPLOYEES table:What is the correct syntax for an inline view?() A.B.C.D.

考题 Examine the structure of the EMPLOYEES table:You issue these statements:At the end of this transaction, what is true?() A. You have no rows in the table.B. You have an employee with the name of James.C. You cannot roll back to the same savepoint more than once.D. Your last update fails to update any rows because employee ID 180 was already eleted.

考题 Examine the structure if the EMPLOYEES and NEW EMPLOYEES tables:Which MERGE statement is valid?() A.B.C.D.

考题 Examine the structure of the EMPLOYEES, DEPARTMENTS, and LOCATIONS tables.Which two SQL statements produce the name, department name, and the city of all the employees who earn more then 10000?() A.B.C.D.

考题 Examine the structure of the EMPLOYEES and NEW_EMPLOYEES tables:Which UPDATE statement is valid?() A.B.C.D.

考题 Examine the structure of the EMPLOYEES and DEPARTMENTS tables:Evaluate this SQL statement:Which SQL statement is equivalent to the above SQL statement?() A.B.C.D.

考题 当()时,货币贬值使该国国际收支状况恶化。A:|ex+em|>1B:|ex+em|=1C:|ex+em| 当()时,货币贬值使该国国际收支状况恶化。A:|ex+em|>1B:|ex+em|=1C:|ex+em|D:|ex+em|≤1

考题 下面四项,合法的电子邮件地址是()。A.wang-em.info.netB.em.info.net-wangC.em.info.net@wangD.wang@em.info.net

考题 哈伯格条件的数学表达形式为 ( ) A.Ex+Em>1 B.Ex+Em<1 C.Ex+Em>1+m D.Ex+Em<1+m

考题 对劣质商品需求的收入弹性(Em)是()。A、Em 1B、Em =0C、Em0D、Em0

考题 正弦交流电的电动势最大值Em电动势有效值E之间的关系为()。A、Em=√3E;B、Em=√2E;C、Em=0.707E;D、Em=1.57E

考题 慢代谢者(PM),快代谢者(EM),快代谢者又分为纯合子EM和杂合子EM,在相同剂量下,他们体内血药浓度比较()A、杂合子EM=纯合子EMPMB、纯合子EM杂合子EMPMC、PM纯合子EM=杂合子EMD、PM杂合子EM纯合子EM

考题 对优等商品需求的收入弹性(Em)是()A、Em<1B、Em=0C、Em>0D、Em<0

考题 $(“div”).find(“em”;)与下面哪句功能一致?()A、$("divem")B、$("div em")C、$("div").has("em")D、$("div").children().is("em")

考题 下列哪些项属于PLC的数字量输入输出扩展模块()A、EM221B、EM222C、EM223D、EM224E、EM225

考题 强调显示标记<em></em>

考题 指令EXEMP.RP=ALL,EM=ALL;输出的数据包括哪些?()A、EM的状态B、EM所带的设备C、EM受控的RP的状态D、EM受控于哪个RPE、EM受控的RP的类型

考题 在匹配的em元素中筛选出第二个em?()A、$("em").eq(-2)B、$("em").eq(2)C、$("em").eq(0)D、$("em").eq(1)

考题 劣等商品需求的收入弹性是()。A、1Em0B、Em=0C、Em0D、Em1

考题 需求收入弹性Em的取值为多少的时候商品是奢侈品?()A、Em0B、Em0C、Em1D、1Em0

考题 单选题View the Exhibit and examine the structure of the ORDERS table. Which task would require subqueries?  ()A  displaying the total order value for sales representatives 161 and 163B  displaying the order total for sales representative 161 in the year 1999C  displaying the number of orders that have order mode online and order date in 1999D  displaying the number of orders whose order total is more than the average order total for all online orders

考题 单选题在匹配的em元素中筛选出第二个em?()A $(em).eq(-2)B $(em).eq(2)C $(em).eq(0)D $(em).eq(1)

考题 单选题A data manipulation language statement ().A completes a transaction on a tableB modifies the structure and data in a tableC modifies the data but not the structure of a tableD modifies the structure but not the data of a table

考题 单选题$(“div”).find(“em”;)与下面哪句功能一致?()A $(divem)B $(div em)C $(div).has(em)D $(div).children().is(em)