Exam (elaborations)
UTA INSY 3304 – EXAM 2 -CHAPTER 7 AND 9 ()
- Course
- Institution
UTA INSY 3304 – EXAM 2 -CHAPTER 7 AND 9 ()...
[Show more]
Content preview
ANSWER DDL: Data Definition LanguageANSWER DML
CREAT SCHEMA AUTHORIZATION - ANSWER Generates a database
schema.
CREATE TABLE, ANSWER creates a new table in the user's database schema.
NOT NULL, ANSWER Ensures that a column will not contain null data.
UNIQUE - ANSWER. Ensures that a column will not contain duplicate data.
PRIMARY KEY, ANSWER defines a primary key for a table.
FOREIGN KEY - ANSWER defines a foreign key for a table.
DEFAULT - ANSWER Defines a default value for a column (when no value is
specified).
CHECK - ANSWER validates the data in an attribute.
CREATE INDEX: ANSWER generates an index for a table
CREATE VIEW, ANSWER generates a dynamic subset of rows and columns
from one or more tables.
ALTER TABLE, ANSWER Changes a table's definition (adds, updates, or
removes attributes or constraints)
CREATE TABLE AS ANSWER Creates a new table using a query from the
user's database schema.
, DROP INDEX, ANSWER Permanently deletes an index.
DROP VIEW, ANSWER permanently deletes a view.
Authentications - ANSWER the process DBMS utilizes to ensure that only
registered users access the database.
ANSWER: Number (L, D) or Numeric (L, D).
ANSWER: Char (L)
Date (DATE) - ANSWER Saves dates in Julian format.
iNSERT: Command for inserting data into table - ANSWER INSERT INTO
tablename VALUES()
COMMIT Syntax: ANSWER COMMIT [WORK].
SELECT Syntax - ANSWER Command for listing the material
SELECT column list FROM table name.
UPDATE: ANSWER Command to Modify Data
Syntax: UPDATE tablename SET column name = expression. [WHERE
conditionlist]:
Syntax: ROLLBACK - ANSWER
Undoes the changes since the last commit.
command
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 $11.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79373 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now