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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

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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)]

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