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Free PDF Quiz 1z0-071 - Oracle Database SQL Fantastic New Exam Online

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Oracle Database SQL Sample Questions (Q185-Q190):

NEW QUESTION # 185
You execute these commands:
CREATE TABLE customers (customer id INTEGER, customer name VARCHAR2 (20)); INSERT INTO customers VALUES (1,'Custmoer1 '); SAVEPOINT post insert; INSERT INTO customers VALUES (2, 'Customer2 ');<TODO> SELECTCOUNT (*) FROM customers; Which two, used independently, can replace <TODO> so the query retums 1?

A. ROLLBACK;
B. ROLIBACK TO SAVEPOINT post_ insert;
C. COMMIT;
D. CONOIT TO SAVEPOINT post_ insert;
E. ROLLEBACK TO post_ insert;

Answer: B,E

NEW QUESTION # 186
Examine the structure of the SHIPMENTS table:

You want to generate a report that displays the PO_IDand the penalty amount to be paid if the SHIPMENT_DATEis later than one month from the PO_DATE. The penalty is $20 per day.
Evaluate the following two queries:

Which statement is true regarding the above commands?

A. Only the second query executes successfully but gives a wrong result.
B. Both execute successfully and give correct results.
C. Only the first query executes successfully and gives the correct result.
D. Only the first query executes successfully but gives a wrong result.
E. Only the second query executes successfully and gives the correct result.

Answer: C

NEW QUESTION # 187
Which two statements are true about Data Manipulation Language (DML) statements?

A. A DELETE FROM.....statement can remove multiple rows based on multiple conditions on a table.
B. An UPDATE... SET...statement can modify multiple rows based on multiple conditions on a table.
C. An INSERTINTO...VALUES..statement can add multiple rows per execution to a table.
D. An UPDATE....SET....statement can modify multiple rows based on only a single condition on a table.
E. An INSERT INTO... VALUES..... statement can add a single row based on multiple conditions on a table.
F. A DELETE FROM.....statement can remove rows based on only a single condition on a table.

Answer: A,B

Explanation:
Explanation/Reference:
References:
http://www.techonthenet.com/sql/and_or.php

NEW QUESTION # 188
You executed the following CREATE TABLE statement that resulted in an error:
SQL> CREATE TABLE employees(emp_id NUMBER(10) PRIMARY KEY, ename VARCHAR2(20), email NUMBER(3) UNIQUE, address VARCHAR2(500), phone VARCHAR2(20), resume LONG, hire_date DATE, remarks LONG, dept_id NUMBER(3) CONSTRAINT emp_dept_id_fk REFERENCES departments (dept_id), CONSTRAINT ename_nn NOY NULL(ename)); Identify two reasons for the error.

A. The PRIMARY KEYconstraint in the EMP_IDcolumn must have a name and must be defined at the table level only
B. The FOREIGN KEYkeyword is missing in the constraint definition
C. FOREIGN KEYdefined on the DEPT_IDcolumn must be at the table level only
D. The NOT NULLconstraint on the ENAMEcolumn must be defined as the column level
E. Only one LONGcolumn can be used per table

Answer: D,E

NEW QUESTION # 189
Which two statements are true regarding working with dates? (Choose two.)

A. The default internal storage of dates is in numeric format.
B. The RR date format automatically calculates the century from the SYSDATE function and does not allow a session user to enter the century.
C. The RR date format automatically calculates the century from the SYSDATE function but allows the session user to enter the century.
D. The default internal storage of dates is in character format.

Answer: A,C

NEW QUESTION # 190
......

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