Oracle Database 12c 1Z0-061 study guide

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Share some Oracle Database 1Z0-061 exam questions and answers below.
Which create table statement is valid?



A. Option A
B. Option B
C. Option C
D. Option D
Answer: D


You want to create a sales table with the following column specifications and data types:
SALESID: Number
STOREID: Number
ITEMID: Number
QTY: Number, should be set to 1 when no value is specified
SLSDATE: Date, should be set to current date when no value is specified
PAYMENT: Characters up to 30 characters, should be set to CASH when no value is specified
Which statement would create the table?



A. Option A
B. Option B
C. Option C
D. Option D
Answer: B


Which two statements are true regarding subqueries?
A. A subquery can retrieve zero or more rows.
B. Only two subqueries can be placed at one level.
C. A subquery can be used only in SQL query statements.
D. A subquery can appear on either side of a comparison operator.
E. There is no limit on the number of subquery levels in the WHERE clause of a SELECT statement.
Answer: A,D


Examine the structure and data of the CUST_TRANS table:
Dates are stored in the default date format dd-mon-rr in the CUST_TRANS table.
Which three SQL statements would execute successfully?



A. SELECT transdate + '10' FROM cust_trans;
B. SELECT * FROM cust_trans WHERE transdate = '01-01-07';
C. SELECT transamt FROM cust_trans WHERE custno > '11';
D. SELECT * FROM cust_trans WHERE transdate='01-JANUARY-07';
E. SELECT custno + 'A' FROM cust_trans WHERE transamt > 2000;
Answer: A,C,D

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 headings should have only the first letter of each word in uppercase.
Which statement would accomplish this requirement?



A. Option A
B. Option B
C. Option C
D. Option D
Answer: C


Examine the structure proposed for the transactions table:



Which two statements are true regarding the creation and storage of data in the above table structure?
A. The CUST_STATUS column would give an error.
B. The TRANS_VALIDITY column would give an error.
C. The CUST_STATUS column would store exactly one character.
D. The CUST_CREDIT_LIMIT column would not be able to store decimal values.
E. The TRANS_VALIDITY column would have a maximum size of one character.
F. The TRANS_DATE column would be able to store day, month, century, year, hour, minutes, seconds, and fractions of seconds
Answer: B,C


You issued the following command:
SQL> DROP TABLE employees;
Which three statements are true?
A. All uncommitted transactions are committed.
B. All indexes and constraints defined on the table being dropped are also dropped.
C. Sequences used in the employees table become invalid.
D. The space used by the employees table is reclaimed immediately.
E. The employees table can be recovered using the rollback command.
F. The employees table is moved to the recycle bin.
Answer: A,B,F


Examine the types and examples of relationships that follow:
One-to-one a) Teacher to students
One-to-many b) Employees to Manager
Many-to-one c) Person to SSN
Many-to-many d) Customers to products
Which option indicates the correctly matched relationships?
A. 1-a, 2-b, 3-c, and 4-d
B. 1-c, 2-d, 3-a, and 4-b
C. 1-c, 2-a, 3-b, and 4-d
D. 1-d, 2-b, 3-a, and 4-c
Answer: C

Which three tasks can be performed using SQL functions built into Oracle Database?
A. Displaying a date in a nondefault format
B. Finding the number of characters in an expression
C. Substituting a character string in a text expression with a specified string
D. Combining more than two columns or expressions into a single column in the output
Answer: A,B,C

You need to create a table for a banking application. One of the columns in the table has the following requirements:
1) You want a column in the table to store the duration of the credit period.
2) The data in the column should be stored in a format such that it can be easily added and subtracted with date data type without using conversion functions.
3) The maximum period of the credit provision in the application is 30 days.
4) The interest has to be calculated for the number of days an individual has taken a credit for. Which data type would you use for such a column in the table?
A. DATE
B. NUMBER
C. TIMESTAMP
D. INTERVAL DAY TO SECOND
E. INTERVAL YEAR TO MONTH
Answer: D


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Created on Dec 21st 2017 23:56. Viewed 393 times.

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