Relational Database

36 cards

MIS Exam 2


 
  
Created Nov 11, 2010
by
lilkimba512

 

 
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1
spreadsheet
 
not as interactive, single themed if the list is simple
2
database
 
self describing collection of integrated records (contains metadata- data that describes data), Self describing-...
3
primary key
 
unique identifier, every table has a key
4
foreign key
 
same name of primary key in another table
5
entity
 
what you keep track of; singular not plural
6
attribute
 
describes the entity; characteristics of entity
7
field
 
columns in the table
8
record
 
rows in the table
9
table
 
group of similar rows and records, every table has a key
10
DBMS
 
software/program, tracks problems and manages solutions, processes database into tables and...
11
SQL
 
structured query language, an international standard for processing data,  Add data...
12
data application
 
collection of forms to update, add, insert, delete data
13
permission
 
allows for special access
14
limit
 
create a ceiling/floor that established a max/min
15
event programming
 
clicking mouse or pressing enter key
16
locking
 
- avoids multiuser processing; two people cannot work on the database at same time
17
personal DBMS
 
run application programs using cache memory (meet needs directly, business oriented/specific),...
18
enterprise DBMS
 
application systems store separately, open 24/7
19
component object model
 
does one thing, easy to organize, less chance of making mistakes
20
key
 
every table has a key, column or group of columns that identifies a unique row
21
data structure
 
structure for data to create efficiency, particular way of organizing data
22
database administrator
 
never a user; important for them not to have an investment interest in avoid bias; responsible...
23
steering committee
 
de development and maintenance, dynamic and always changing, represents all users, validate...
24
disaster recovery
 
how long it takes to recover and get up and running again
25
data model
 
logical representation of what the data will look like, accurately reflects the business
26
E-R Data Model
 
developers describe the content of the model/databases, describe the entities and the relationship...
27
UML
 
unified model language, pictorial relationship of what the database will look like
28
Logic
 
same ticket cannot be sold to more than one person at the same time
29
1:N
 
one department can have many advisors 
30
M:N
 
- many advisors can have many students
31
Max Cardinality
 
max # of entities that can be involved in relationship
32
Min Cardinality
 
min # of entities involved in relationship 
33
Data Design
 
process of converting data into tables, attributes describe the entity, foreign key has same...
34
Data constraint
 
ensure accuracy and consistency with the data
35
normalization
 
process of converting two poorly constructed (malformed) tables into well structured tables, get...
36
data integrity problem
 
duplicate data

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