Online Access Free Oracle.1z0-071.v2022-02-07.q334 Practice Test (Page 20)

1z0-071 Exam Question 91

Which three statements are true about Data Manipulation Language (DML)? (Choose three.)

A.INSERT INTO...SELECT...FROMstatements automatically commit.

B.DELETEstatements can remove multiple rows based on multiple conditions.

C.DML statements require a primary key be defined on a table.

D.UPDATE statements can have different subqueries to specify the values for each updated column.

E.INSERTstatements can insert NULLS explicitly into a column.

1z0-071 Exam Question 92

Examine the business rule:
Each student can work on multiple projects and each project can have multiple students.
You need to design an Entity Relationship Model (ERD) for optimal data storage and allow for generating reports in this format:
STUDENT_ID FIRST_NAME LAST_NAME PROJECT_ID PROJECT_NAME PROJECT_TASK
Which two statements are true in this scenario?

A.The ERD must have a 1:M relationship between the STUDENTSand PROJECTSentities.

B.The ERD must have a M:M relationship between the STUDENTSand PROJECTSentities that must be resolved into 1:M relationships.

C.STUDENT_IDmust be the primary key in the STUDENTSentity and foreign key in the PROJECTSentity.

D.PROJECT_IDmust be the primary key in the PROJECTSentity and foreign key in the STUDENTSentity.

E.An associative table must be created with a composite key of STUDENT_ID and PROJECT_ID, which is the foreign key linked to the STUDENTS and PROJECTS entities.

1z0-071 Exam Question 93

Which three are true about the CREATE TABLE command? (Choose three.)

A.It implicitly rolls back any pending transactions

B.A user must have the CREATE ANY TABLE privilege to create tables

C.The owner of the table must have the UNLIMITED TABLESPACE system privilege

D.It implicitly executes a commit

E.The owner of the table should have space quota available on the tablespace where the table is defined

F.It can include the CREATE..INDEX statement for creating an index to enforce the primary key constraint

1z0-071 Exam Question 94

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:

What would be the result?

A.It executes successfully and updates the records of those employees who have been working in the company for more than 600 days.

B.It gives an error because NVL function cannot be used with UPDATE.

C.It gives an error because multiple NVL functions are used in an expression.

D.It executes successfully but no rows updated.

1z0-071 Exam Question 95

Which two statements are true about Data Manipulation Language (DML) statements? (Choose two.)

A.An INSERT INTO...VALUES.. statement can add multiple rows per execution to a table.

B.An UPDATE... SET... statement can modify multiple rows based on multiple conditions on a table.

C.A DELETE FROM..... statement can remove rows based on only a single condition on a table.

D.An INSERT INTO... VALUES..... statement can add a single row based on multiple conditions on a table.

E.A DELETE FROM..... statement can remove multiple rows based on multiple conditions on a table.

F.An UPDATE....SET.... statement can modify multiple rows based on only a single condition on a table.

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1z0-071 Exam Question 91

1z0-071 Exam Question 92

1z0-071 Exam Question 93

1z0-071 Exam Question 94

1z0-071 Exam Question 95

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