Exam (elaborations)
INSY 3304 EXAM 2 LATEST UPDATED
- Course
- Institution
INSY 3304 EXAM 2 LATEST UPDATED ...
[Show more]
Content preview
1NF - Answer in the first normal form. Table format. There are no repeatedgroups.
SQL = Structured Query Language. The standardized relational database
language is used to define database objects and manipulate data.
ANSWER: Second Normal Form- 1NF with no partial dependencies.
ANSWER: Third Normal Form- 2NF with no transitive dependencies.
Parts of Dependencies - Answer: Functional
-Fully functional.
- Partial
-Transitive
Functional - ANSWER link between two characteristics
Full Functional - ANSWER The whole collection of traits in the determinant is
required for the relationship
Partial - The ANSWER determinant is only part of the primary key.
Transitive - ANSWER exists when there are functional dependencies.
ANSWER Data Definition Language (DDL) is used to design databases,
schema, constraints, users, and tables.
ANSWER Data Manipulation Language (DML) is used to insert, amend, and
delete records.
CREATE DATABASE - ANSWER generates a new database.
, DROP INDEX - ANSWER permanently deletes the index.
DROP VIEW, ANSWER permanently deletes a view.
CREATE TABLE AS ANSWER Creates a new table using a query from the
user's database schema.
CREATE VIEW - ANSWER generates a dynamic subnet, or rows and columns
from one table to another.
CHECK INDEX - ANSWER generates an index for a table.
CHECK - ANSWER validates the data in an attribute.
ANSWER defines the default value for a column.
FOREIGN KEY - ANSWER defines a foreign key for a table.
PRIMARY KEY - ANSWER defines the primary key for a table.
UNIQUE - ANSWER assures uniqueness a column does not have duplicate
values.
NOT NULL, ANSWER Ensures that a column will not contain null data.
CREATE TABLE - ANSWER generates a new table.
ALTER TABLE - ANSWER modifies an existing table in your database.
DROP TABLE, ANSWER permanently deletes a table.
INSERT - ANSWER to input
UPDATE - ANSWER: Maintain the changes made to the table
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Boostertips. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79064 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now