Exam (elaborations)
UTA INSY 3304 – EXAM 2 -CHAPTER 7 AND 9 ()
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UTA INSY 3304 – EXAM 2 -CHAPTER 7 AND 9 ()...
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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
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