CIS 3050 STUDY GUIDE
routines that an application uses to direct the performance of procedures by the computer's operating system
Application Program Interface (API)
_______ InfoObjects have master data(attributes, etc.)
Characteristics
_____________ constraint assigns a value to an attribute when a new row is added to table.
DEFAULT
Which of the following is an objective of derived data?
Ease of use for decision support systems, Faster response time for user queries, Support data mining applications (ALL THE ABOVE)
ETL - Extract, transform, load
Extract: select Transform: Format Load: load data into datawarehouse
HTML
For presentation
The level of detail in a fact table determined by the intersection of all the components of the primary key, including all foreign keys and any other primary key elements, is called the:
Grain
_____________ groups infoObjects types in SAP BI
InfoCatalog
The analysis of summarized data to support decision making is called:
Informational processing
______________ InfoObjects are part of the fact table in SAP BI
Key Figure
XSLT
Language
XML
Language you use to transfer data on the web.
software that allows an application to interoperate with other software without requiring user to understand and code low-level operations
Middleware
Common database APIs (MIDDLEWARE)
ODBC[OPEN DATABASE CONNECTIVITY], ADO .NET (MS APPS) , JDBC[JAVA DATABASE CONNECTIVITY] Java.sql(JDBC)
Data Mart
Small scope
All of the following are ways to handle changing dimensions EXCEPT:
create a snowflake schema.
When we consider data in the data warehouse to be time-variant, we mean:
data in the warehouse contain a time dimension so that they may be used to study trends and changes.
A logical data mart is a(n):
data mart created by a relational view of a slightly denormalized data warehouse.
A star schema contains both fact and ________ tables.
dimension
Going from a summary view to progressively lower levels of detail is called data:
drill-down
Snowflake schema
extended star schema
Star schema
has fact table, dimension
An operational data store (ODS) is a(n):
integrated, subject-oriented, updateable, current-valued, detailed database designed to serve the decision support needs of operational users.
The use of a set of graphical tools that provides users with multidimensional views of their data is called:
on-line analytical processing (OLAP).
Data that are never physically altered once they are added to the store are called ________ data.
periodic
Rotating the view of a multidimensional database for a particular data point is called data:
pivoting.
Data that are detailed, current, and intended to be the single, authoritative source of all decision support applications are called ________ data.
reconciled
OLAP tools that use the database as a traditional relational database are called:
slice and dice
An expanded version of a star schema in which all of the tables are fully normalized is called a(n):
snowflake schema
The characteristic that indicates that a data warehouse is organized around key high-level entities of the enterprise is:
subject-oriented
Every key used to join the fact table with a dimension table should be a ________ key.
surrogate