Currently I am taking database management system and my teacher wants my to fill
ID: 3679782 • Letter: C
Question
Currently I am taking database management system and my teacher wants my to fill in these fill in the blank questions.
A single piece of data is a _______________________.
______________________________invented the first punched card.
Name one challenge with storing data today.
Software to manage data is called __________________________.
Herman Hollerith founded ______________________________.
DDL is known as ______________________________________.
A basic SQL statement has the following 3 parts _______________, _____________________ and __________________________.
In the like clause, what matches any group of characters of any length? _________________
T or F, Or comes before And?
The where-clause limits the number of ______________ that are selected from the database.
Three typical cardinalities are ________________________, _______________________________, and _______________________________
Intersection data is the same as this type of entity _________________________.
A relationship of one entity to occurrences of the same type of entity is called _______________________________.
A ________________________________ involves 3 different entity types.
Modality is _____________________________________________.
Four operations that can be performed on stored data are ______________________________ , _______________________________, _______________________________, _______________________________
The ability to tie pieces of related data together is called ____________________________.
In general data redundancy is good for a system. T or F. ______________
Name three data control issues.
Hierarchical databases are known as ______________________ approaches to database.
Explanation / Answer
A single piece of data is a datum.
Semen korsakov invented the first punched card.
Name one challenge with storing data today. is storage virtualization
Software to manage data is called DBMS(Database Management System)
Herman Hollerith founded the tabulating machine company which isnow called IBM.
DDL is known as Data Definition Language which includes command like create table.
A basic SQL statement has the following 3 parts _table name______________, ____clause(like where )_________________ and ___ternination_______________________.
Intersection data is the same as this type of entity with many to many relationship.
In the like clause, what matches any group of characters of any length? True
The where-clause limits the number of ____rows__________ that are selected from the database.
Three typical cardinalities are ______(0,0)__________________, __(1,1)_____________________________, and (0,n)or (1,n)_______________________________
In general data redundancy is good for a system. T or F. ---------- False
Modality is the least amount of relationships one row of a table can have with a row of another table. it can be only 0 or1.
our operations that can be performed on stored data are ___Deletion___________________________ , _______________updation________________, _______retrival________________________, ____________modify___________________
The ability to tie pieces of related data together is called ______Joining____________________.
Hierarchical databases are known as ____________tree__________ approaches to database.
Name three data control issues.
data security,backup and recovery.
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