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Summary IT163 Unit4.docx IT163 Unit 4 Assignment: Rational Database IT163 Purdue Global University A database is a collection of data is organized in a manner to be quickly searched and retrieved. Databases require a program of software, referred to as a da$7.49
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Summary IT163 Unit4.docx IT163 Unit 4 Assignment: Rational Database IT163 Purdue Global University A database is a collection of data is organized in a manner to be quickly searched and retrieved. Databases require a program of software, referred to as a da
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IT163 U IT163 Unit 4 Assignment: Rational Database IT163 Purdue Global University A database is a collection of data is organized in a manner to be quickly searched and retrieved. Databases require a program of software, referred to as a database management system (DBMS). The database managem...
it163 unit4docx it163 unit 4 assignment rational database it163 purdue global university a database is a collection of data is organized in a manner to be quickly searched and retrieved datab
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IT163
Unit 4 Assignment: Rational Database
IT163
Purdue Global University
A database is a collection of data is organized in a manner to be quickly searched
and retrieved. Databases require a program of software, referred to as a database
management system (DBMS). The database management system is an interface between the
database and the end-users that simultaneously manages data. Meanwhile in a relational
database management system (RDBMS) is a collection of programs and capabilities that is
designed to create and update tables and rows.
In a relational database model, the table is a collection of data elements that are
organized in rows and columns. Tables are similar to worksheets in applications much like
Excel, the rows run horizontally while columns run vertically. A table can have multiple rows
of data that have true relation but do not have any duplicate data. The intersection of the rows
and columns define each cell in the table. Records are represented by rows and columns
represent fields. Fields and records are two basic components of a database where a
collection of information is organized.
Relational databases maintain data in tables which provides an efficient and flexible
way to store and access structured information. This allows you to retrieve a new table from
data in one or more tables with a query. It allows an understanding of the relationship among
the available data and to gain insight into making decisions on identifying new
opportunities. Relational databases provide an environment from which data can be accessed
in many ways without needing to reorganize the database tables. Some of the many benefits
, includes flexibility, allowing a user to add new columns, tables and other changes while
queries are already happening.
The first component is tables, responsible for storing information within a
database, containing columns and rows. For example in Excel, every column will have a
name at the top and each row has a number. The second component is relationships, they
are essential for
connections and bonds that are formed between each table. These relationships can be
referred to in one of three ways; one-to-one, one-to-many or many-to-many. Queries being
the third component, can sort, calculate and filter through information based on what you are
looking for. A form is a database object that can be used to create a user interface for a
database application (What are the 6 major components of Microsoft Access Arkware, 2020).
Reports can be created once you enter data into a database, you cannot edit reports but choose
information you want to include when creating the report. Lastly, the sixth component of
Microsoft Access is macros,
they perform a series of actions based on how it is entered. These macros allow you to
open forms, run queries and run other macros.
The five-step design method is a solid foundation for creating database applications,
this includes tables, queries, forms and reports more. First you must determine the purpose of
the database, then find and organize the information you need to be stored. Once information
has been organized, you will create tables and label each table with the subject. Specify a
primary key in each row, set up the relationship to relate the data in other tables, then lastly
redefine your design.
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