Question: A primary key is _ _ _ _ _ _ . a . a column that identifies other columns in a table b . a

A primary key is ______.
a. a column that identifies other columns in a table
b. a unique identifier of a column
c. an identifier of columns in a relational table
d. a unique identifier of a table

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Q:

The final project requires a physical design of the database of Daisy flower shops. This database should be normalized in 3rd normal form. Write the CREATE TABLE statements for all the entities in...

Q:

Help with mysql as much as you can Question 1 (5 points) Suppose we have two tables listed in the FROM clause in the following order, TableA and TableB. We want to preserve the data in both TableA...

Q:

What is a primary key in a database? All of these A unique identifier for each record in a table A type of index used in a database A field that stores data in a table

Q:

Database Design Problem You have been hired to review the accuracy of the books of Northeast Seasonal Jobs International (NSJI), a job broker. NSJI matches employers whose business is seasonal (like...

Q:

Dear Tutor, Attached please find my assignment. Could you help me? Thanks in advance . Database Design Problem You have been hired to review the accuracy of the books of Northeast Seasonal Jobs...

Q:

SHIPMENT_LINE SHIP_ID INV_ID SL_QUANTITY SL_DATE_RECEIVED Number Number Number Date/ Time 25 09/10/2006 2 25 09/10/2006 2 25 5 200 6 200 7 200 12 100 08/15/2006 13 100 08/25/2006 23 50 08/15/2006 24...

Q:

For this assignment, run this on SQL Workbench: Querying SQL Servers 1 Use SQL to complete the following exercises. 1. Create a table named REP. The table has the same structure as the SALES_REP...

Q:

a. Lab 4 Creating Constraints Save screen captures of all SQL statements used to accomplish the following tasks. Save your screen captures in a word document or PDF which must be named in the format...

Q:

MYSQL databases The database: CREATE TABLE MoSpo_RaceCourse ( raceCourseName VARCHAR(30) PRIMARY KEY, raceCourseLocation VARCHAR(30), raceCourseLength DEC(5,3) UNSIGNED ); CREATE TABLE MoSpo_Race (...

Q:

MYSQL assignment PLEASE DON"T COPY AND PAST OTHER IRRELEVANT ANSWERS OR I WILL REPORT YOU AS A SPAM -- TABLE DEFINITIONS --- CREATE TABLE MoSpo_RaceCourse ( raceCourseName VARCHAR(30) PRIMARY KEY,...

Q:

Describe the difference between independent and dependent demand and give an example of each for a pizza restaurant such as Dominos or Pizza Hut.

Q:

Draw the Lewis structure of CO. Include lone pairs and formal charges. please dont forget the formal charges.. Thank you :) Draw the Lewis structure of CO. Include lone pairs and formal charges.

Q:

between the budgeted cost for training and the actual cost of training is called a: 3 points 0 1 : 3 6 : 0 2 Multiple Choice Loss. Controllable cost. Perlod cost Varlance.

Q:

Compared with half a century ago, adoption has become _ _ _ _ _ _ _ _ _ common, but it is more open and acceptabl e , so we probably discuss it _ _ _ _ _ _ _ . fill in the blanks more or much less or...

Q:

14-2 What methods can be used for selecting and evaluating information systems projects and aligning them with the firms business goals?

Q:

14-3 How can firms assess the business value of information systems?

Q:

14-1 What are the objectives of project management, and why is it so essential in developing information systems?