Post on 13-Apr-2017
transcript
• Mahmoud Abdallah Mahmoud• Head of Developer Vertical• Microsoft Tech Club Sohag University• Faculty of Engineering
• Database & DBMS
• Relational Database Features
• Structured Query Language
• Microsoft SQL Server
• DEMO
• How to start
• Microsoft Certifications
Objectives
What are Databases?
First, What is the problem? You have some data!!!!!
Text Files & Spreadsheets
• Size
• Ease of updating
• Accuracy
• Security
• Redundancy
• Importance
Having Data is not the problem, The problem is what comes next :
This is the true power of Database:
( It’s Invisible ) It’s the thing you can’t see
• The database is your data & your rules about that data.
• DBMS: Software Surround, Manage & Make sure your rules are applied.
Database Database
DBMSSoftware
OtherDBMS
Database & DBMS
_ Amazon.com, eBay, Google, Bing, MVA, …. The business is the information + Great programming + Nice front end.
_ It could be a website or an phone application.
Relational Database Features
• Database is constructed of one or more, usually more tables
• All your data goes into a table.
Table
Table
Table
Database
Unique Values & Primary Keys
• Unique & Not Unique
• Primary Key _ It’s the one piece of data, that will identify one, and only one row in this table .
_ Connect your different tables together.
Defining Table Relationships
1- One To Many
1- One To Many ( Cont. )
2- Many To Many_ You can’t express it directly.
AuthorID 2
446
__________________________3- One To One4- None
1- One To Many “very common”.2- Many To Many “occasionally required”.3- One To One “not common at all”.4- None “exist”.
Recap
SQL“ Structured Query Language ”
Introduction to SQL “ Structured Query Language ”
• SQL is the common language, that lies in the heart of every RDMS.
• SQL is the language “ very focused language ”.
• SQL is a declarative query language not a procedural language,
what it means that you use SQL to describe what you want
and let the RDMS handle how that actually done.
Example “ Books Table ”
# Which books have a ListPrice more than 40$ ???
In Pseudo Code
In SQL
• You describe what you want
_ In English :
“ I want all books more than 40$ ”
_ In SQL :
SELECT * FROM Books WHERE ListPrice > 40
• SQL can be used to :
Create
Read
Update
Delete
• Define the databases themselves.
• Creating Queries in SQL
• It’s not for general programming, it’s a language focused on working with databases.
• Query: We use it to ask the database a question, and we expect a reply.
SELECT
Create
Read
Update
Delete
• Define the databases themselves.
Exam
ple
Microsoft
SQL Server
Why Microsoft SQL Server ???
• A MATURE Product_ It is been around for more than twenty years.
• MICROSOFT SQL Server_ It’s very common in a Microsoft oriented shop.
• INTEGRATION_ The integration is great with other Microsoft products things like SharePoint, ASP.NET, Silverlight or the office products like Excel.
• HOSTED SOLUTIONS_ Many web hosting companies will allow you rent and create a SQL server databases and often inexpensively when it still quite rare to find other enterprise level databases like ORACLE or IBM DB2 on offer.
• ADVANCED FEATURES_ Reporting Services
_ BIDS & Data Analysis
_ Integration services
…
It’s a collection of different Components
SQLServer
SQL ServerManagement
Studio
ReportingServices
SQL ServerProfiler
BusinessIntelligence
DevelopmentStudio
IntegrationServices
ConfigurationManager
AnalysisServices
BooksOnline
DEMO
NA
SDA
QNASDAQ is an American/Canadian stock exchange. It is the second-largest exchange in the
world by market capitalization, behind only the New York Stock Exchange.
How to Start ???
Database Development
Data Pros ( DBA )
Microsoft SQL Server Certifications
Contact Me
eg.linkedin.com/in/mahmoudabdallah01
mahmoud.abd.allah@hotmail.com
Contact Me
eg.linkedin.com/in/mahmoudabdallah01
mahmoud.abd.allah@hotmail.com