32. Which CREATE TABLE statement is valid? A. CREATE TABLE ord_details (ord_no NUMBER(2) PRIMARY KEY, item_no NUMBER(3) PRIMARY KEY, ord_date DATE NOT NULL); B. CREATE TABLE ord_details (ord_no NUMBER(2) UNIQUE, NOT NULL, it…
7. Which two statements are true regarding the USING and ON clauses in table joins? (Choose two.) A. Both USING and ON clauses can be used for equijoins and nonequijoins. B. A maximum of one pair of columns can be joined between two tables using the…
12. You need to produce a report where each customer's credit limit has been incremented by $1000. In the output, the customer's last name should have the heading Name and the incremented credit limit should be labeled New Credit Limit. The column he…
[OCP|052]OCP最新题库解析(052)--小麦苗解答版 OCP最新题库解析历史连接(052):http://mp.weixin.qq.com/s/bUgn4-uciSndji_pUbLZfA ⊙ [OCP最新题库解析(052)--题3]Which two are true about external tables?⊙ [OCP最新题库解析(052)--题2]...is true about FAST_START_MTTR_TARGET⊙ [OCP最新题库解析(052)--题1]Whic…
引言 到目前为止,我们使用 IP 地址来研究参与网络的主机.对于大众来说,这些地址太繁琐且难以记忆.为了使用如 TCP 和 IP 等协议,主机名称通过名为名称解析(name resolution)的过程转换成 IP 地址.在互联网中,存在着不同形式的名称解析,其中最普遍.最重要的是域名系统(Domain Name System,DNS). DNS 是一种分布式数据库系统,是一种典型的客户端/服务器模型的网络数据库.TCP/IP 应用程序使用它来完成主机名称和 IP 地址的映射."分布式"…
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 t…
23. Examine thestructure proposed for the TRANSACTIONS table: name Null Type TRANS_ID NOT NULLNUMBER(6) CUST_NAME NOT NULLVARCHAR2(20) CUST_STATUS NOT NULLCHAR TRANS_DATE NOT NULL DATE TRANS_VALIDITY VARCHAR2 CUST_CREDIT_LIMIT NUMBER Which statements…
121. You want to create a new optimized database for your transactional production environment to be used by a financial application. While creating the database, you want the Oracle software to take care of all basic settings to optimize the databas…
1. Because of a power outage,instance failure has occurred. From what point in the redo log does recovery begin and where does it end?A. Current redo log and inactive redo logB. Checkpoint position to end of redo logC. Beginning of redo log to end of…
61. View the Exhibit.Which statement regarding the dept and emp tables is true?A) When you delete a row from the emp table, you would receive a constraint violation error.B) When you delete a row from the dept table, you would receive a constraint vi…
1. View the Exhibit andexamine the structure of the SALES, CUSTOMERS, PRODUCTS, and TIMES tables. The PROD_ID column isthe foreign key in the SALES table, which references the PRODUCTS table. Similarly, the CUST_IDand TIME_ID columns are also foreign…
