Question
SQL Terminology Homework (multiple pages) Answer the following question related to material in the textbook or that have been discussed in class/lab. Just fill in
SQL Terminology Homework (multiple pages)
Answer the following question related to material in the textbook or that have been discussed in class/lab. Just fill in your definition in this Word document and submit to dropbox. Be complete and specific in your answers.
Question8e | Your answer |
What is the name of the physical database (i.e. in Microsoft Access) component(s) that is typically created from the Entity component of an ERD ?
|
|
What is the name of the physical database (i.e. in MS Microsoft Access) component(s) that is typically created from the Attribute component of an ERD ?
|
|
What is the name of the physical database (i.e. in MS Microsoft Access) component(s) that is typically created from the Identifier component of an ERD ?
|
|
What is the name of the physical database (i.e. in MS Microsoft Access) component(s) that is typically created from the Relationship component of an ERD ?
|
|
What does the term row mean in a physical database ? What does the term column mean in a physical database ?
|
|
What does the term SQL stand for ? |
|
What is SQL used for ?
|
|
What SQL statement/command is used to add a new table to an existing database ? |
|
What SQL statement/command is used to add a new row of data in an existing table ? |
|
What SQL statement/command is used to update an existing row of data in a table ? |
|
What SQL statement/command is used to delete a row of data from a table ? |
|
In your own words describe the meaning of NULL/NOT NULL when used with a CREATE TABLE command; give an example of when you might use NULL, give an example of when you might use NOT NULL
|
|
Give an example of defining a Constraint within a CREATE TABLE command; show some sample SQL and describe its meaning
|
|
What SQL statement/command is used to retrieve existing data from a table ? |
|
What is the term WHERE used for in SQL in your own words ? |
|
What is the term ORDER BY used for in SQL in your own words ? |
|
Name 4 different data types allowed in SQL as discussed in class or in the book ? (see Chapter 3 in the textbook) |
|
What is the difference between a column defined with data type CHAR(100) vs. VARCHAR(100) ? When is a good time to use a VARCHAR instead of a CHAR for text data ?
|
|
Name 3 field/column data types that can be used to hold varying sizes of Integer data ? |
|
Name a field/column data type that can be used to hold decimal data ? |
|
What are some examples of situations when it makes more sense to define a field with a numeric data type than with a character data type ? be specific and give examples
|
|
In your own words describe the largest positive numeric value and smallest negative numeric value that this data type will hold (see Chapter 3 in the textbook)
NUMBER(7,3) [same as DECIMAL(7,3)]
|
|
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started