Introduction to MS SQL Server 2012 and MySQL

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Introduction to MS SQL Server 2012

and MySQL

Svetlin Nakov

Telerik Software Academyhttp://academy.telerik.com

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Basic knowledge of MS SQL Services Types of databases Authentication and permissions SQL Server Management Studio

Moving a MS SQL database Through backups and restore By detaching and attaching

MySQL2
































MS SQL Server 2012Overview
































What is Microsoft SQL Server?

MS SQL Server is a Relational Database Management System (RDBMS) from Microsoft The main language supported in

SQL Server is Transact SQL (T-SQL), an extension of SQL

Powerful, trustworthy, easy-to-use DB server

The most recent version is SQL Server 2012

Works only on Windows systems A free distribution exists (SQL Server Express) http://www.microsoft.com/express/d

atabase/

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http://www.microsoft.com/express/database/

http://www.microsoft.com/express/database/
































Services of SQL Server 2012

SQL Server – the database engine Responsible for database

management, data storage, queries, data manipulation, data integrity, transactions, locking, users, security

Executes SQL / T-SQL queries

SQL Server Agent – db monitoring Executes scheduled tasks

Monitors SQL Server

Sends notifications about problems5
































Services in SQL Server 2012 (2)

Distributed Transaction Coordinator (MSDTC) Manages database transactions

Supports transactions that span multiple databases

Coordinates committing the distributed transaction across all the servers that are enlisted in the transaction

Implements 2-phase commit http://

en.wikipedia.org/wiki/Two-phase_commit_protocol

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http://en.wikipedia.org/wiki/Two-phase_commit_protocol


































msdb

SQL Server Databases

Northwind

tempdbmsdb































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SQL Server has system and user databases

System databases Maintain internal information about

MS SQL Server as a system

Don't play with them!

User databases Databases created by users

(developers)

Store user's schemas and data

Use the system databases internally

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Types of SQL Server Databases

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System Databases

User Databases

model tempdb msdb distribution

pubs Northwind …

master































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master – meta-database keeping data about User accounts

Configurable environment variables

System error messages

model – a prototype for new databases

tempdb – storage for temporary tables and database objects

msdb – alerts and scheduled tasks 10































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Each SQL Server database consists of two files: .mdf file

Contains the core data in the database

Schema, tables data, and other database objects

.ldf file Transaction log – keeps track of

transactions

You need both these files to use the database

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SQL Server Authenticatio

n
































Connecting to SQL Server

Connecting to SQL Server (or MySQL) requires The name of the server

The name of the database

Username / password (if using SQL Server authentication)

Types of authentication in SQL Server Windows (by using a Windows user

credentials)

Mixed (both Windows and SQL Server)

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SQL Server Users Permissions

Each user has certain permissions and roles for a database (Database User Account)

A role defines a group of users with the same permissions

There are 3 types of roles in MS SQL Server Fixed server roles

Fixed database roles

User-defined database roles 14































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Public – maintains all default permissions for users in a database

Db_owner – performs any database role activity

Db_accessadmin – add or remove database users, groups, and roles

Db_ddladmin – add, modify, or drop database objects

Db_securityadmin – assign statement and object permissions

Others… 15
































SQL Server Management

Studio

A Powerful Management Tool for Administrators and Developers
































SQL Server Management

Studio (SSMS) SQL Server Management Studio (SSMS) is a powerful graphical DB management tool Administrate databases (create,

modify, backup / restore DB)

Create and modify E/R diagrams

View / modify table data and other DB objects

Execute SQL queries

Free and easy to use tool

Works with all SQL Server versions

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SQL Server Management Studio –

Screenshot

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SSMS Setting Server Account

You can use SSMS to create database user / give permissions to Windows users

Follow these steps:

1.Right click on the [Security / Login] folder in Object Explorer and choose "New Login…"

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SSMS Setting Server Account (2)

2.In the next dialog click the [Search] button

Select one of the Windows accounts in a typical Windows fashion

Leave the authentication method set to Windows authentication

Click [OK]

Thus you create an SQL Server User account

Account permissions could be assigned later

Windows administrators already have access

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SSMS Setting Database Account

1. Right click on the "Security" under some of the databases and choose "New" "User"

2. Enter username and select one of the Server accounts to use

3. Assign the roles for this user

4. Click [OK] to confirm

By selecting the [Name-of-Database] "Properties" "Permissions" you can also set specific permissions for the accounts

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Creating Database Users –

Screenshot

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Creating Accounts and Assigning Permissions

Live Demo
































Using SQL Server Management

Studio SSMS can be used to visually edit the structure or data in a database

It can execute T-SQL queries Select the database you want to

work with in the Object Explorer

Click the [New Query] button

Write the query in the window to the right of Object Explorer

Click the [Execute] button24
































Executing SQL – Screenshot

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Executing Simple SQL QueriesLive Demo
































Moving an SQL Server Database
































Moving a SQL Server Database

Necessary when we install a certain application at the customer environment

Ways of moving an SQL Server database: By backup and restore

Create backup and restore it on the other server

By detaching and attaching the database files The 2 servers must be the same

versions!

By dumping the database as SQL script

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Moving by Backup and Restore

Backup and restore database through SSMS

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Moving DB by Detaching and

Attaching On the source server: Choose the database in SQL Server

Management Studio

From the context menu we choose the Detach command

We copy the database files from the source server to the destination server: <database_name>.mdf <database_name>.ldf

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Moving a Database by Detaching and

AttachingLive Demo
































MySQL 5.5

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MySQL is the most common database for use with PHP Very light and fast

Authentication is very fast Doesn't slow page loading times

High scalability Can work with millions of rows

Open source, free

Various number of storage engines































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MyISAM manages nontransactional tables

provides high-speed storage and retrieval

fulltext searching capabilities

MEMORY provides in-memory tables

EXAMPLE a “stub” engine that does nothing

create tables, but no data can be stored

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MySQL Storage Engines (2)

InnoDB provide transaction-safe tables

supports FOREIGN KEY referential-integrity constraints

NDBCLUSTER (also known as NDB) implement tables that are

partitioned over many computers

ARCHIVE storing large amounts of data

without indexes with a very small footprint

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MySQL Storage Engines (3)

CSV stores data in text files using

comma-separated values format

BLACKHOLE accepts but does not store data and

retrievals always return an empty set

FEDERATED stores data in a remote database

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MySQL Server Databases

Each MySQL Server database (MyISAM engine) consists of 3 files: .frm file

Schema of the database objects

.MYD file Database data

.MYI file Database indexes

You need all of these files to use the database

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Web-based MySQL administration directly execute any SQL statement

managing databases, tables, fields, relations, indexes, users, permissions, etc.

Free software tool written in PHP http://www.phpmyadmin.net

Demo: http://demo.phpmyadmin.net/maste

r-config/

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http://www.phpmyadmin.net/



http://demo.phpmyadmin.net/master-config/

































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Powerful graphical MySQL management tool visually design, model, generate,

and manage databases

creating, executing, and optimizing SQL queries

easily administer MySQL environments and gain better visibility into databases

provides a complete, easy to use solution for migrating Microsoft SQL Server, Sybase ASE, PostreSQL, and other RDBMS tables to MySQL

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Working withMySQL Workbench

Live Demo
































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Questions?

Introduction to MS SQL Server and MySQL

http://academy.telerik.com

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1. Download and install SQL Server Express. Install also SQL Server Management Studio Express (this could take some effort but be persistent).

2. Connect to the SQL Server with SQL Server Management Studio. Use Windows authentication.

3. Create a new database Pubs and create new login with permissions to connect to it. Execute the script install_pubs.sql to populate the DB contents.

4. Attach the database Northwind (use the files Northwind.mdf and Northwind.ldf) to SQL Server and connect to it.

(All files are in the SQL-Server-Demos.rar)

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5. Backup the database Northwind into a file named northwind-backup.bak and restore it as database named North.

6. Export the entire Northwind database as SQL script. Use [Tasks] -> [Generate Scripts]. Ensure you have exported table data rows (not only the schema).

7. Create a database NW and execute the script in it to create the database and populate table data.

8. Detatch the database NW and attach it on another computer in the training lab. In case of name collision, preliminary rename the database.

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9. Download and install MySQL

10.Connect to the MySQL Server with MySQL Workbench

11.Create a new database Pubs using the schema from the MS SQL server and using MySQL Workbench

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Documents

Introduction to MS SQL Server 2012 and MySQL