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INSY 3304 EXAM 2 LATEST UPDATED
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INSY 3304 EXAM 2 LATEST UPDATED ...
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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
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