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Microsoft SQL Server Administration Using MS SQL Server 2008 David Henson

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Presentation on theme: "Microsoft SQL Server Administration Using MS SQL Server 2008 David Henson"— Presentation transcript:

1 Microsoft SQL Server Administration Using MS SQL Server 2008 David Henson

2 Logistics Class Days: 3 Class Hours: 9-5 Notes/Handouts Demos Class website

3 Recommended Reading Microsoft SQL Server(TM) 2005 Administrator's Pocket Consultant (Pro-Administrator's Pocket Consultant) Microsoft Press

4 Module 1: Overview Course Outline Lab Setup Definitions Tools What is SQL Server SQL Language Basics SQL Server Network Integration

5 Course Outline – Day 1 Module 1: Overview Module 2: Installation Module 3: Objects and Securables Module 4: Security And Principals

6 Course Outline – Day 2 Module 5: Backup Module 6: Restore

7 Course Outline – Day 3 Module 7: Web and Integration Module 8: Automation and Job Scheduling Module 9: Transferring Data Module 10: Replication

8 Lab Setup Windows 2003 Server SQL Server 2008 –Standard, or Enterprise Computer Names IP Addresses

9 Definitions Transact SQL DBA Server Client Concurrency/Locks Login User Role Database SQL SMO(Formerly DMO) SQL Instance Principal Securable

10 Tools SQL Management Studio Visual Studio.Net (2005/2008) SQL Server Configuration Manager Command Prompt –SQLCMD –Ping, telnet, nslookup, net use Database Tuning Advisor Full-FeaturedText Editor –Notepad++(Free) –UltraEdit –Textpad Profiler

11 What is SQL Server? Client Server Relational Database Operating System Windows Service That Manages Database Files, Security and Concurrency

12 SQL Language Basics SELECT INSERT UPDATE DELETE

13 SQL Server Network Integration Network oriented protocols –TCP/IP disabled on SQL Express by default DNS Windows Domain/Active Directory Firewalls

14 Lab 1A – Tools In this instructor led lab, you will: –Preview SQL Management Studio –Preview Database Engine Tuning Advisor –Preview Profiler

15 Module 2: Installation Software Requirements Hardware Requirements SQL Server Versions Licensing Capacity Planning SQL Services Installation

16 Software Requirements Windows Server –2000 –2003 or 2008 Windows XP (Developer) Windows CE

17 Hardware Requirements Install Type Dependent –Express 192 MB RAM –Standard/Enterprise 512MB RAM 450 MB Typical Install

18 SQL Server Versions DataCenter –Hardware/Software solution Enterprise Standard Developer Workgroup Express Windows Mobile

19 Licensing Per Processor Per Server plus Device CALS Per Server plus User CALS SQL Server 2008 Express is free

20 Capacity Planning Drive Space CPU Memory I/O Subsystem

21 RAID 0, 1, 5 or 10 Logical Drive Structure Physical Drive Structure Considerations: –Performance –Ease and Cost of Management –Disaster Planning

22 SQL Services Service Names: –SQL Server (MSSQLServer) –SQL Server Agent (MSSQLServer) –SQL Server Browser SQL Traffic director, allows Dedicated Admin Connection (DAC) –SQL Server Integration Services SQLIS.com –SQL Server Fulltext Search –SQL Server Analysis Services –SQL Server Reporting Services Starting/Stopping

23 Service Accounts LocalSystem Local Account Domain Account Automatic Startup

24 Installation Options –Server –Instance –Client Tools Only Administrative Rights Instances

25 Online Demonstration: Installing an SQL Server instance

26 Module 3: Managing Objects Object Definition Creating Objects Altering Objects Dropping Objects MetaData Object Permissions

27 What is an Object? Type Of Objects: –Table –View –Stored Procedure –Trigger –DataType –Function (UDF) –Index –Constraint

28 Synonyms Allows an alias for a securable New CREATE SYNONYM syntax

29 Creating Objects CREATE Statement Example: CREATE TABLE Customers( CustomerID int identity, Customer varchar(50) )

30 Altering Objects ALTER Statement Example: ALTER TABLE Customers ADD CustomerPhone varchar(40)

31 Dropping Objects DROP Statement Example: DROP TABLE Customers

32 Getting Metadata Information Schema Sysobjects table Sp_helptext

33 Setting Permissions GRANT Statement Example: GRANT SELECT ON Customers TO Public

34 Lab 3A: Creating Objects

35 Lab 3B: Altering Objects

36 Module 4: Security and Principals

37 Surface Area Configuration Best practice – reduce the “surface area” exposure of your system to minimum Off By Default –Microsoft.NET Framework, –SQL Service Broker Network Connectivity, and –HTTP connectivity in Analysis Services –Xp_cmdshell –Ad Hoc Remote Query –Database Mail –Native XML Web Service See Surface Area Configuration Tool

38 Levels of Security Login – Server Level User – Database Level Object – Permissions to Access Objects Application Security Network Access Encryption

39 Windows Workgroup Model Distributed Accounts –Each machine has locally maintained user and group database Windows Server Not Required

40 Windows Domain Model Centralized Accounts –Active Directory is a single source for users and groups Single Sign-On –Access all resources after logging in only once Auditing

41 Active Directory Extension of the Domain Model –Leverages DNS Name Resolution –Better Security Protocols –Better Fault Tolerance –More Extensible –Group Policy

42 Logins Types: –Windows (Integrated) –SQL (Standard) Tools –SQL Management Studio –Scripts

43 Users Tools: –SQL Management Studio –Scripts

44 Roles Role Is A Group of users Purpose – Ease Permission Management Role Types: –Standard –Application Role Tools: –SQL Management Studio –Scripts

45 Permissions User Defined: –Action –Object Access –Object Execution Tools: –SQL Management Studio –Scripts

46 Lab 4A: Creating Accounts

47 Lab 4B: Creating Users and Groups

48 Lab 4C: Permissions

49 Module 5: Backup

50 Reasons for Data Loss Accidental Update Hardware Failure Improper Application Design –Transactions Not Used Other User Error Intentional Distruction –Hackers –Viruses

51 SQL Server Backup Online Backup –Users can access data during backup Types: –Full –Differential –Log COPY_ONLY option –Does not disturb normal backups, truncate logs, or reset any flags Use of Filegroups

52 Increasing Backup Performance Set appropriate BLOCKSIZE parameter –-2048 good for cdrom stored backups –With default setting, restore uses buffered io which is more flexible and slower Stripe backup devices

53 Restricted Activities During Backup Modifying Database Properties Autogrowth Managing Indexes Nonlogged Operations

54 Backup Statement Example: BACKUP DATABASE Lab3A To Disk=‘c:\Lab3A.bak’ WITH INIT, BLOCKSIZE=2048

55 Using SQL Management Studio

56 Backup Options

57 Database Recovery Model Property of a database Options: –Full –Bulk_Logged –Simple Affects log behavior

58 Backup Requirements System Databases: –Master – New Logins, change password –MSDB – Modifying or creating jobs User Databases: –Whenever data loss is unacceptable –At a rate when the cost(cash, downtime) of restore is unacceptable

59 Operating A Standby Server Server 1-Log Backup Regularly Server 2-Log Restore with NoRecovery –Server 2 Database is read-only Server 2-Log Restore with Recovery –Used in case of catastrophic failure of Server1

60 Backup Devices Device = File Permanent object you can reference by name Example: BACKUP DATABASE Lab3A TO DailyBackup

61 Tape Backup Must be attached locally to the SQL Server Some syntax is unique to tape media Must be recognized by Windows Backup as a SCSI tape device

62 Special Log Backups WITH Truncate_Only –Clears log, no backup file is created –Used to maintain log when no regular log backups occur WITH No_Truncate –Emergency use when data file not available WITH COPY_ONLY (new to SQL 2005) –Does not disturb normal backup flow or interrupt normal log backup/restore process –Use on an ad-hoc basis before running potentially harmful queries

63 Backup Strategies Weekly Full Backup Nightly Full Backup Variations of above with Differential and Log Backups

64 Best Practices Use Automation Test Your Backups Use Notification Use COPY_ONLY option as needed Understand the Business Keep Management Informed

65 Lab 5A: Backup

66 Module 6: Restore

67 Restore Safety Features Restore will fail(or need override) if: –Backup file stored name does not match the database name –Set of database files do not match –All necessary files are not available

68 Restore Database Statement RESTORE DATABASE Lab6 FROM DISK=‘c:\Lab6.bak’ WITH RECOVERY

69 Restore Process Always backup the log first! Full Differential Log Recovery

70 Saving Space Maintain the log file Compress your backup files

71 Log Restore Options Stopping at a certain time Stopping at a named bookmark

72 Single Row Restore Use in case of accidental delete: –Restore to a temporary location –Enable identity inserts –Insert necessary rows Intimate knowledge of data structure required

73 Restoring Master Place server into single user mode Perform Restore Restart Server

74 Restoring Master with No Backup Rebuilm.exe utility creates brand new master, model, msdb Sp_attach_db plugs data files back in

75 Best Practices Backup the log at first sign of trouble Periodically test a restore Maintain enough working space Avoid the need to restore Backup system databases as required

76 Lab 6A: Restore

77 Module 7: Web and Integration

78 Web Technologies Allow connection to SQL Server through HTTP Used for logging, collecting data, reporting, data transfer and admin functions Examples: –ASP, ASP.Net, Perl, CGI, Cold Fusion, JSP, Java

79 Communication Process

80 Benefits of web integration Secure worldwide access No client deployment Remote access for administrative functions

81 Dangers of web access Misuse of data Data communication interception Hackers have a doorway to your network

82 SQL Injection Malicious users leverage web input against SQL Server Examples: –Running server level commands –Changing the where clause…OR 1=1 –Running DDL Commands –Reading ODBC Errors for data discovery

83 Protection from SQL injection Only use minimal priviledged account Pre-process all input Minimize direct SQL from web page by using Stored Procs and UDFs

84 ASP Example

85 ASP.Net Example

86 Notification Allows asynchronous communication with SQL Server Numerous techniques: –Database Mail New to SQL 2005 Easy to use smtp mail provider, easy setup –CDONTS.Newmail Provided as a.dll file with Windows 2000 Com Object –CDO.Message Provide with XP/Windows 2003 Com Object –SQLMail MAPI Client Must be setup during a full moon –Third party objects –.NET Framework mail objects

87 CDONTS Object

88 CDO Object

89 Database Mail

90 SQL Mail Setup Not recommended Requirements: –MAPI compliant mail server –MAPI client on SQL Server –SQL Service logged in as domain account –Domain account has mailbox available

91 Lab 7A: Web/ Integration

92 Module 8: Automation and Job Scheduling

93 Requirements SQLServerAgent service must be running Permissions on network or local resources

94 Automation Examples Nightly backup Nightly data transfer Hourly generation of web pages Detection of server problems: –Log 95% full Backup Log Notification

95 Automation Components Job –Collection of steps, each step performing work Operator –Pointer to account in Database Mail or SQL Mail Alerts –Connection between a detected problem and a job/operator

96 Jobs Created with gui or with sp_add_job May be scheduled Comprised of Steps: –Transact SQL –Operating System Commands –ActiveX (VBScript/Javascript) –Other (Replication, SSIS, Analysis Services) Retain history Might have success/failure workflow Can target multiple servers

97 Defining a Job Step

98 Operators An alias to a native address of SQL Mail or Database Mail Net Send address also supported Operator Addresses – – business hours address –Pager – after hours address –Net send Failsafe Operator

99 Defining an Operator

100 Alerts Alert types –SQL Server Error –SQL Server Performance Condition –WMI Query Windows eventlog MUST trigger response Alert response is defined by admins –Execute Job –Send Notification

101 Defining An Alert

102 Proxies Allow job steps to run with a different windows login

103 Lab 8A: Automation and Job Scheduling

104 Module 9: Data Transfer

105 Data Transfer Movement of data between systems One of the most common DBA functions

106 Data Transfer Examples Nightly download of sales data from all stores Quarterly catalog update for website Order fulfillment –Hourly transfer of order information to fulfillment center –Hourly gathering of ship tracking information Movement of web data into accounting system

107 Data Transfer Techniques SSIS and Import-Export Wizard Legacy DTS Package Support BCP.EXE command line utility Backup/Restore Distributed Queries Saving results from query analyzer Web Page download Bulk Insert Statement Detach/Re-attach database files Log Shipping Select/Insert

108 SSIS Import/Export Wizard Visual Studio Project

109 BCP Command line utility Examples: Bcp northwind..products out c:\nwind.csv –w –t, -r/n –T Bcp “select * from products” queryout c:\nwind.txt –c –t~ -r/n –Usa -P

110 Backup/Restore Simply compress, then transfer the backup file to the destination Clean up sysusers table after restore

111 Distributed queries Openquery/Openrowset/OpenXML SELECT INTO INSERT/SELECT Linked Servers

112 Query Analyzer Controlling saved results Output to text file Reading from different providers

113 Web page download Response Content type change Saving results to a file, then providing a link Job scheduler, results come through

114 Bulk Insert

115 Detach/Reattach database files On database node: –Right click/all tasks/detach Clean up of sysusers not needed after re- attachment

116 Lab 9A: Data Transfer

117 Module 10: Replication

118 Definitions Automatic transfer of data between locations

119 Replication Types Transactional –Only changes are copied across –Most efficient Merge –Two sources of read/write data –Most dangerous Snapshot –Data is removed, then re-created on a schedule

120 Replication Models Central publisher/Distributer Central Subscriber/Multiple Publisher Multiple Publisher/Subscriber

121 Setup Tips Ensure box servers are logged in with a domain account Ensure the domain account is an admin on both boxes Ensure the domain account can map to c$ Ensure the domain account can run queries against the other server

122 Lab 13A: Replication


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