
Chapter 1-Intro to SQL (Chapter 1-3)
Authored by Mel PJ
Computers
10th - 12th Grade
Used 8+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following allows you to add Address column with string value up to 50 characters in your EMP table?
ALTER TABLE emp ADD address VARCHAR2(50);
ALTER TABLE emp ADD COLUMN address VARCHAR2(50);
ALTER TABLE emp ADD address VARCHAR2(30);
ALTER TABLE emp DROP COLUMN address;
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which is an example of Data Manipulation Language (DML) command?
CREATE
INSERT
ALTER
DROP
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which is an example of Data Definition Language (DDL) command?
INSERT
DELETE
CREATE
UPDATE
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following will display all the records in EMPLOYEES table?
SELECT salary FROM employees;
SELECT * FROM employees;
SELECT ALL FROM employees;
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which command will execute properly?
INSERT INTO emp (101, 'Melissa', 300);
INSERT INTO emp VALUES (101, Melissa, 300);
INSERT INTO emp VALUES (101, 'Melissa', 300);
INSERT INTO emp VALUES ('101', Melissa, '300');
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which command will execute correctly?
CREATE TABLE emp (ID Number(5), Name Varchar2(25));
CREATE TABLE emp (ID Number(5), Name Varchar(25));
CREATE TABLE emp ID Number(5), Name Varchar2(25);
CREATE TABLE emp (ID Number(5), Name Varchar);
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What will be the result If you will execute the following command: DELETE FROM emp;
The table will be deleted.
All the records will be deleted.
The structure of the table will be displayed.
The statement will not execute.
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