Lecture 1

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DBST 670 – Database Systems Administration

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IntroductionsStudents – introduce yourself in WebTycho

please

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Syllabus – step through here

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Syllabus – step through here

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Lab requirements – step through hereLook at the index for the workbook during

this presentationo

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Our environmentdbcourse1 serverUnix kernelOracle 9iYou install a version

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Look at chapter 1 in workbook draft

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Chapter 1 - Wessler

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Oracle (or Informix, DB2, Sybase) – a set of very complex programs to build, populate and manage information.

DBAs – held “responsible and accountable for the safety and …availability of the organization’s data”

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DBAs – role of DBA varies substantially with “shop”

examples

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DBA characteristics – some tongue in cheek

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Types of DBAsSystems or operational DBA – emphasized

here – monitors, makes changes, etc. Most people think of this type of DBA.

Architectural (Application) DBA – also emphasized here – works with development team and provides optimal database solution

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Maintenance DBA – support preexisting systems

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DBA Tasks (Theriault, 2002):Software installations/upgradesDatabase actions – space, etc.System issues – backups ran, etc.Education issues – disseminate infoDeveloper issues – log TARS, etc(more)

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More DBA Tasks:Security issues – passwords, etc.Database standards

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DBA Tasks (Wessler):Data Protection - #1 – organization’s data

must be safe and recoverableData Availability - #2 – database must be

open and available for useNeed balance between #1 and #2

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DBA Tasks (Wessler):Technical – 1. System- Plan and design database system2. System - Build it – install Oracle and

create the database3. System - Build it – create and populate

database objects

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DBA Tasks (Wessler):4. System - Build it – schedule backups5. Application support – change objects6. Tuning – tuning application, database

server, system7. Backup and recovery – critical to plan

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DBA Tasks (Wessler):8. Backup and recovery – implement, test,

and document9. Troubleshooting - varies

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DBA Tasks (Wessler):Non-Technical1. Oracle “Expert”2. Oracle point of contact - Metalink and

phone support ($)3. Process expert – know core business

processes

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DBA Skills (Wessler):Think logically and solve problemsDeal with peopleUnderstand the business“jack of all trades”

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DBA Skills (Wessler):Human interaction – communication, with

management, problem-solving, continuing education

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Roles in IT organization (Wessler):System administrators,

programmers/developers, management, customers and end users, outside organizations. DBA interacts with all.

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DBA mindset (Wessler):Territorial – protective of the system

(database)

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Career path –Beginner – time learning jobIntermediate – more advanced tasksExpert – more technical challenges

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Education – need to learn new things all the time as technology changes – but you found this course. :>)

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Start Lab Check here

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Lab check –Everyone can access dbcourse1 server?You have started an 8 to 10 table logical

design and will post a draft ERD next week?

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ERD needs to be normalized – of course, just a reminder.

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Lab check –Everyone can find the scripts we will use to

generate the database? Be sure to look at for next week so you know what is going on!

Start thinking about your 7 disk layout

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Lab check –Any questions on ERD?Each person should take responsibility for

creating and maintaining 2 - 3 tables – in addition to the ones on disk01 so you will 8 – 10 tables in total

Set up work plan.