Data and Database Administration CISB514 Advanced Database  At the end of this chapter, you should be able to:  Define terms related to data & dbase administration  List functions and roles of data/database administration  Describe role of data dictionaries and information repositories

Data and Database Administration CISB514 Advanced Database  Data Administration  Data Administration: A high-level function that is responsible for the overall management of data resources in an organization, including maintaining corporate-wide definitions and standards  Database Administration  Database Administration: A technical function that is responsible for physical database design and for dealing with technical issues such as security enforcement, database performance, and backup and recovery

Data and Database Administration CISB514 Advanced Database  Data policies, procedures, standards  Data Policies: statements that make explicit the goals of DA  Data procedure: written outlines of actions to be taken to perform certain activity  Data Standard: explicit conventions and behaviors that are to be followed and that can be used to help evaluate dbase quality  Planning  Data conflict (ownership) resolution  Managing the information repository  Internal marketing of DA concepts

Data and Database Administration CISB514 Advanced Database 1. All users must have passwords 2. Password must be changed every 6 months 3. Password must have minimum of 7 characters 4. Password must have maximum of 12 characters 5. Password must be combination of alphabet and numbers 6. I/C number, names, birth date cannot be used as passwords.

Data and Database Administration CISB514 Advanced Database 1. To create password: i. End user send request to DBA ii. DBA approves and forward it to computer operator iii. Computer operator creates account, assign temporary password and end it to the user. iv. A copy of the account information is sent to the DBA v. User changes the temporary password.

Data and Database Administration CISB514 Advanced Database  Selection of DBMS and software tools  Installing/upgrading DBMS  Tuning database performance  Improving query processing performance  Managing data security, privacy, and integrity  Data backup and recovery

Data and Database Administration CISB514 Advanced Database DATABASE PLANNING Develop corporate database strategy/policies Develop enterprise model (information architecture) Develop cost/benefit models Design database environment/select technologies Develop and market data administration plan DATABASE ANALYSIS Define and model data requirements (conceptual) Define and model business rules Define operational requirements Resolve requirements conflicts Maintain corporate data dictionary/repository

Data and Database Administration CISB514 Advanced Database DATABASE DESIGN Perform logical database design Design external model (sub schemas) Design internal (physical) models Design integrity controls DATABASE IMPLEMENTATION Specify database access policies Establish security controls Install DBMS Supervise database loading Specify test procedures Develop application programming standards Establish procedures for backup and recovery Conduct user training

Data and Database Administration CISB514 Advanced Database OPERATIONS AND MAINTENANCE Backup and recover databases Upgrade DBMS Monitor database performance Tune and reorganize databases Resolve access conflict Tune and rewrite queries Enforce standards and procedures Support users GROWTH AND CHANGE Implement change-control procedure Plan growth and change Evaluate new technology

Data and Database Administration CISB514 Advanced Database  Blend data and database administration into one role  Fast-track development–monitoring development process:  Database planning: improve selection of technology  Database analysis: work on physical design in parallel with development of the logical & physical models  Database design: prioritize application by volume, importance & complexity  Database implementation  Database maintenance

Data and Database Administration CISB514 Advanced Database  New DBA Roles  Procedural DBAs–managing quality of triggers and stored procedurestriggers and stored procedures  eDBA–managing Internet-enabled database applications  PDA DBA–data synchronization and personal database management  Data warehouse administration

Data and Database Administration CISB514 Advanced Database  New role, coming with the growth in data warehouses  Similar to DA/DBA roles  Emphasis on integration and coordination of metadata/data across many data sources  Specific roles:  Support DSS applications  Manage data warehouse growth  Establish service level agreements regarding data warehouses and data marts

Data and Database Administration CISB514 Advanced Database  DEFINITION:  Free DBMS source code software that provides the core functionality of an SQL-compliant DBMS  An alternative to proprietary packages such as Oracle, Microsoft SQL Server, or Microsoft Access  mySQL is an example of an open-source DBMS  Advantages:  Less expensive than proprietary packages  Source code available, for modification  Have different version (simple to complex, free to some cost(additional features)  No additional cost for copies or licensing

Data and Database Administration CISB514 Advanced Database  Disadvantages:  Absence of complete documentation  Ambiguous licensing concerns  Not as feature-rich as proprietary DBMSs  Vendors may not have certification programs

Data and Database Administration CISB514 Advanced Database  Consider these factors when choosing an open source DBMS:  Features  Support  Ease-of-use  Stability  Speed  Training  Licensing

Data and Database Administration CISB514 Advanced Database 17

END OF CHAPTER INFORMATION IN THIS SLIDES WERE TAKEN FROM MODERN DATABASE MANAGEMENT SYSTEM, NINTH EDITION BY JEFFREY A.HOFFER, MARY B.PRESCOTT & HEIKKI TOPI.

Data and Database Administration CISB514 Advanced Database  Routines  Program modules that execute on demand  Functions–routines that return values and take input parameters  Procedures–routines that do not return values and can take input or output parameters  Triggers  Routines that execute in response to a database event (INSERT, UPDATE, or DELETE)

Data and Database Administration CISB514 Advanced Database

Data and Database Administration CISB514 Advanced Database  CREATE PROCEDURE varchar(10) AS SELECT Product, Quantity FROM Inventory WHERE Warehouse  EXECUTE sp_GetInventory ‘Kajang' 21

Data and Database Administration CISB514 Advanced Database CREATE TRIGGER STANDARD_PRICE_UPDATE AFTER UPDATE OF STANDARD_PRICE ON PRODUCT_T FOR EACH ROW INSERT INTO PRICE_UPDATES_T VALUES (PRODUCT_DESCRIPTION, DATE, STANDARD_PRICE);