50、(11-15)choose two Examine the structure of the MARKS table: Which two statements would execute successfully? A) SELECT SUM(subjectl+subject2+subject3) FROM marks WHERE student_name IS NULL; B) SELECT SUM(DISTINCT NVL(subject1,0)), MAX(subjectl) FROM ma
45、(9-16)choose the best answer: View the Exhibit and examine the data in the EMPLOYEES table. You want to generate a report showing the total compensation paid to each employee to date(迄今为止支付给每位员工的总补偿). You issue the following query: SQL>SELEC
46、(10-4) choose two: Examine the data in the CUST_NAME column of the CUSTOMERS table. CUST_NAME Lex De Haan Renske Ladwig Jose Manuel Urman Jason Mallin You want to extract only those customer names that have three names and display the * symbol in plac
45、(9-16)choose the best answer: View the Exhibit and examine the data in the EMPLOYEES table. You want to generate a report showing the total compensation paid to each employee to date(迄今为止支付给每位员工的总补偿). You issue the following query: SQL>SELE
ORA-04930 to ORA-07499 6ORA-04930: open sequence number failed or initial state is validCause: Either Shared Sequence Number OS component was not installedproperly, or an MC hardware failure may have occurred or a previous instancewas not shut down prope
ORA-07500 to ORA-09859 7ORA-07500: scglaa: $cantim unexpected returnCause: VMS system service $CANTIM returned an unexpected valueAction: Check for system error message and refer to VMS documentationORA-07501: scgtoa: $deq unexpected returnCause: VMS sys
43、(9-2)choose three Which three tasks can be performed by DDL statements? A) preventing data retrieval from a table outside of office hours B) modifying a table to prevent data that violate certain conditions from being entered in a column C) preventing
44、(9-12)choose all that apply View the Exhibit and examine the details of the ORDER_ITEMS table. Evaluate the following SQL statements: Statement 1: SELECT MAX(unit_price*quantity) "Maximum Order" FROM order_items; Statement 2: SELECT MAX(unit_
42、(9-1)choose the best answer: Which statement is true about the Oracle SQL, DELETE and TRUNCATE statements? A) DELETE but not TRUNCATE statement can be used to remove data from selective columns and rows of a table. B) DELETE and TRUNCATE statements can
38.choose the best answer View the Exhibit and examine the data in the PROMOTIONS table. PROMO_BEGIN_DATE is stored in the default date format, dd-mon-rr. You need to produce a report that provides the name,cost,and start date of all promos in the POST ca
19.choose the best answer View the Exhibit and examine the structure of the PROMOTIONS table. Evaluate the following SQL statement: SQL>SELECT promo_name,CASE WHEN promo_cost>=(SELECT AVG(promo_cost) FROM promotions WHERE promo_category= 'TV�
36.choose the best answer View the Exhibits and examine the structures of the PRODUCTS, SALES, and CUSTOMERS tables. You issue the following query: SQL>SELECT p.prod_id,prod_name,prod_list_price, quantity_sold,cust_last_name FROM products p NATURAL JOI
35.choose the best answer View the Exhibit and examine the description of the EMPLOYEES table. Evaluate the following SQL statement: SELECT first_name, employee_id, NEXT_DAY(ADD_MONTHS(hire_date,6),1) "Review" FROM employees; The query was writt
33.choose the best answer View the Exhibit and examine the structure of the ORDER_ITEMS table. Examine the following SQL statement: SELECT order_id, product_id, unit_price FROM order_items WHERE unit_price = (SELECT MAX(unit_price) FROM order items GROUP
32.choose the best answer View the Exhibit and examine the data in EMP and DEPT tables. In the DEPT table, DEPTNO is the PRIMARY KEY. In the EMP table, EMPNO is the PRIMARY KEY and DEPTNO is the FOREIGN KEY referencing the DEPTNO column in the DEPT table.
30.choose the best answer Examine the commands used to create DEPARTMENT_DETAILS and COURSE_DETAILS: SQL> CREATE TABLE DEPARTMENT_DETAILS (DEPARTMENT_ID NUMBER PRIMARY KEY, DEPARTMENT_NAME VARCHAR2(50) , HOD VARCHAR2(50)); SQL> CREATE TABLE COURSE_D
28.choose the best answer Evaluate the following SQL statement: SQL> SELECT promo_id, promo_category FROM promotions WHERE promo_category = 'Internet' ORDER BY 2 DESC UNION SELECT promo_id, promo_category FROM promotions WHERE promo_category
choose the best answer In the EMPLOYEES table there are 1000 rows and employees are working in the company for more than 10 years. Evaluate the following SQL statement: SQL> UPDATE employees SET salary = NVL(salary,0) + NVL(comm,0),comm = NVL(comm,0)
5.choose the best answer Evaluate the following CREATE SEQUENCE statement: CREATE SEQUENCE seq1 START WITH 100 INCREMENT BY 10 MAXVALUE 200 CYCLE NOCACHE; The sequence SEQ1 has generated numbers up to the maximum limit of 200. You issue the following SQL
5.choose the best answer Evaluate the following CREATE SEQUENCE statement: CREATE SEQUENCE seq1 START WITH 100 INCREMENT BY 10 MAXVALUE 200 CYCLE NOCACHE; The sequence SEQ1 has generated numbers up to the maximum limit of 200. You issue the following SQL
3.choose three View the Exhibit and examine the description of SALES and PROMOTIONS tables. You want to delete rows from the SALES table, where the PROMO_NAME column in the PROMOTIONS table has either blowout sale or everyday low price as values. Which th
redhat7.5在部署oracle 12.2、18.3时候，安装界面可能会出现乱码，这个是由于安装redhat7.x的时候少装了字体包，缺少字体所致，另外在安装goldengate时候也会出现乱码，安装部署时界面乱码如下：这时可以安装如下字体：yum install -y cjkuni-uming-fonts 如果还是乱码可以考虑安把下面的字体都
20.choose two Examine the description of the EMP_DETAILS table given below: Which two statements are true regarding SQL statements that can be executed on the EMP_DETAIL table? A) You cannot add a new column to the table with LONG as the data type. B) An
1.choose the best answerWhat is the primary difference between the relational database (RDB) andobject-oriented database (OODB) models?A) RDB allows the definition of relationships between different tables, whereas OODBdoes not allow this.B) OODB incorpor
1.choose the best answerWhat is the primary difference between the relational database (RDB) andobject-oriented database (OODB) models?A) RDB allows the definition of relationships between different tables, whereas OODBdoes not allow this.B) OODB incorpor
