Unlock document.
This document is partially blurred.
Unlock all pages and 1 million more documents.
Get Access
In 1:N relationships, the table on the "many" side is called the child.
Only the 64-bit version of the Java Runtime Environment should be installed when
using a 64-bit operating system.
The SQL SET keyword is used to specify a new value when changing a column value.
One advantage of using the CONSTRAINT command to define a primary key is that
the database designer controls the name of the constraint.
Database views can only be created in SQL Server through the use of SQL commands.
Database administration tasks have to be performed for single-user, personal databases.
A relationship's maximum cardinality indicates the maximum number of entities that
can participate in the relationship.
The primary work key is a field or fields whose value uniquely identifies a record.
An important improvement of XML Schema over DTDs is that XML Schemas are
themselves XML documents.
In XML Schema, the default minimum cardinality can be overridden using the
minOccurs attributes.
In a common form of RFM analysis, a score of 1 is "high" or "good" while a score of 5
is "low" or "bad."
In a common form of RFM analysis, customers with an R score of 5 are in the 20% of
customers who have the most recent orders.
There is a common trap in writing a correlated subquery, which will cause no rows to
ever be displayed in the results.
PHP code is executed on a server and can generate HTML code that is sent to the client
computer.
When placing a foreign key for a 1:1 relationship, the key of either table can be used as
the foreign key in the other table.
Converting date, money, or other more specific data types to char or varchar will
usually succeed.
Each Microsoft Access 2013 command tab contains a set of tools grouped into sets of
related commands.
In Microsoft Visio 2013, Relationship connector objects can be formatted with the line
end symbols needed to create IE Crow's Foot notation.
A compound identifier is an identifier consisting of two or more attributes.
When examining data values as a part of assessing table structure, you should try to
determine the table's primary key.
A simple attribute has only one element.
Stored procedures and triggers in SQL Server may become confused while executing
stored procedures and triggers when SQL Server special words such as TRANSACTION
appear as table or other names, even if they are enclosed in square brackets [ ].
A tuple is a group of one or more columns that uniquely identifies a row.
An Oracle Database tablespace is a logical subdivision of an Oracle database instance
that is used to group related tables, views, and other similar objects.
The default Microsoft Access 2013 command tabs are HOME, CREATE, INTERNAL
DATA and DATABASE TOOLS.
SQL Server supports AFTER and INSTEAD OF triggers, but not BEFORE triggers.
The Microsoft Access wildcard character "*" (asterisk) indicates a sequence of one or
more unspecified characters in a Microsoft Access SQL query.
XML provides a standardized, non-customizable way to describe the content of a
document.
The default transaction isolation level in MySQL is REPEATABLE READ.
A characteristic of a relation is that the rows of a relation may hold identical values.
In a common form of RFM analysis, customers are sorted into five groups and given an
associated score depending on their group.
An association object relates two (or more) objects and stores data that are peculiar to
that relationship.
The IIS Web server is automatically installed when the Windows operating system is
installed, and no additional steps are necessary to either install or activate it.
Normalization eliminates modification anomalies and data duplication.
When creating a table in the relational database design from an entity in the extended
E-R model, the attributes of the entity become the rows of the table.
The SQL keyword FROM is used to specify the table to be used.
Applications are computer programs used directly by users.
SQL Server 2014 contains a system-stored procedure named sp_rename that can be
used to change table names.
An entity instance is an occurrence of a particular entity.
