Question: The PRIMARY KEY constraint is used while creating a table will apply which rule: There can be only one PRIMARY KEY in a table. PRIMARY

The PRIMARY KEY constraint is used while creating a table will apply which rule:
There can be only one PRIMARY KEY in a table.
PRIMARY KEY values uniquely identify each row; thus, all PRIMARY KEY column values must be unique.
Null values are not allowed in the PRIMARY KEY column.
All the rules will apply
The PRIMARY KEY constraint is used while creating a table will

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:

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:

Dear all your solution is incorrect,please check my solution below and edit the code, I think my issue is the connection between diemansions tables and fact table, because there is no data appear in...

Q:

You want to load a Star - - - - - - - - - - Dear all your solution is incorrect,please check my solution below and edit the code , I think my issue is the connection between diemansions tables and...

Q:

CHAPTER 3 1. Which of the following is a correct statement? a. You can restore the data deleted with the DROP COLUMN clause, but not the data deleted with the SET UNUSED clause. b. You cant create...

Q:

First visit HYPERLINK "http://www.tdan.com/view-articles/5174/" http://www.tdan.com/view-articles/5174/ and learn what data related business rules are. Business rules are precisely written and...

Q:

BYGB/ISGB 7973: ASSIGNMENT 2 DATABASE MANAGEMENT SQL Assignment Part I You may want to use the CreateTable_TG.ddl that we used for the TradeGroup an exemplar for this question. This exercise is based...

Q:

TABLE Customers-- ------------------- -- Add a Not Null constraint on LastName and FirstName by altering table and modifying the column -- Add a primary key constraint on Customers table using...

Q:

Which of the following is not an element of the E-R Model? Select one: a. Use case b. Entity c. Cardinality d. Relationship Clear my choice Question 2 Not yet answered Marked out of 1.00 Flag...

Q:

APPLICATION PROBLEM SET 3 Problem 3.1 Creating an Access Database Using an Excel File Each worksheet in the Company.xls file represents a different table in a simple company database. You are to use...

Q:

APPLICATION PROBLEM SET 3 Problem 3.1 Creating an Access Database Using an Excel File Each worksheet in the Company.xls file represents a different table in a simple company database. You are to use...

Q:

Owens Corning Fiberglass Corporation For Immediate Release (February 6, 1992) Owens Corning Takes $800 Million Non-Cash Charge to Accrue for Future Asbestos Claims This action demonstrates our...

Q:

Predict the product(s) of the following reactions. If more than one product is formed, tell which ismajor. (a) CH3I (excess) Ag20, H20 eat C? A? B? .cocI (b) H20 NaN3 eat C? B? A? (c) CgHsCH2Br C7...

Q:

The following are all advantages of Limited Liability Companies EXCEPT: Limited liability for members. Flexible taxation. Conflicts between members. Easy to organize.

Q:

Chemical engineering question Thums - up , if answer is good 3 3 0 .

Q:

How are custom calculations developed that will refer back to columns in the Pivot Table on the same Excel worksheet?

Q:

What do the Length of Service and Length of Service Earnings Quotients indicate with reference to Female versus Male Wage and Job Progression in respect to Length of Service?

Q:

How do Excel Pivot Tables handle data from non OLAP databases?