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Elements and Performance Criteria

Required Skills

Required skills

analytical skills to

detect identify and resolve contentions in the realtime operation of the database

determine appropriate database performance diagnostic tool to use

literacy skills to record performance test results

planning and organisational skills to

ensure that database backup procedures are appropriate for the method of data storage

problemsolving skills to

carry out appropriate fixes based on diagnostic results

detect identify and resolve contentions in the realtime operation of the database

determine where inappropriate use of database and temporary table spaces occur

identify issues causing degradation of database performance

technical skills to

configure the database and test its performance

monitor and measure the performance of shared pool blocks and buffers

monitor and tune the efficiency of SQL as required

track the module performance according to specifications

Required knowledge

broad knowledge of

principles of database design

detailed knowledge of

database administration

diagnostic tools

tuning methodologies

Evidence Required

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge range statement and the Assessment Guidelines for the Training Package

Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Evidence of the ability to

correctly identify common database problems

select appropriate solutions to solve the problem

implement such solutions to improve database performance

Context of and specific resources for assessment

Assessment must ensure access to

diagnostic tools

database operating on a network

appropriate learning and assessment support when required

modified equipment for people with special needs

Method of assessment

A range of assessment methods should be used to assess practical skills and knowledge The following examples are appropriate for this unit

review of candidates documentation of problem resolution

direct observation of the candidate using database tools to solve a database problem

evaluation of database after candidate has resolved issues affecting its performance

Guidance information for assessment

Holistic assessment with other units relevant to the industry sector workplace and job role is recommended where appropriate

Assessment processes and techniques must be culturally appropriate and suitable to the communication skill level language literacy and numeracy capacity of the candidate and the work being performed

Indigenous people and other people from a nonEnglish speaking background may need additional support

In cases where practical assessment is used it should be combined with targeted questioning to assess required knowledge

Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Diagnostic tool may include:	server software or may be inbuilt to the server software software applications external to the database server.
Database may include:	commercial off-the-shelf (COTS) database packages object-relational databases proprietary databases relational databases.
Performance may include:	archiving old records compacting database files creating indexes improvements to response time latch contention preventing events causing waits record or table locking repairing the database simultaneous access splitting database files.
Architecture may include:	configuration: large memory model requests per second small memory model database software: DB2 Informix Ingres Microsoft SQL (MS SQL) server Mini SQL (mSQL) MySQL Oracle Sybase operating system: Linux Mac multi-user ability Novell NetWare 5 or above Windows 2000 or above.
SQL may include:	ISO/IEC 9075 (1-4,9-11,13,14):2008: ISO/IEC 9075-1:2008 Framework (SQL/Framework) ISO/IEC 9075-10:2008 Object Language Bindings (SQL/OLB) ISO/IEC 9075-11:2008 Information and Definition Schemas (SQL/Schemata) ISO/IEC 9075-13:2008 SQL Routines and Types Using the Java TM Programming Language (SQL/JRT) ISO/IEC 9075-14:2008 XML-Related Specifications (SQL/XML) ISO/IEC 9075-2:2008 Foundation (SQL/Foundation) ISO/IEC 9075-3:2008 Call-Level Interface (SQL/CLI) ISO/IEC 9075-4:2008 Persistent Stored Modules (SQL/PSM) ISO/IEC 9075-9:2008 Management of External Data (SQL/MED) proprietary extensions: AS/NZS 3968.0:1994/Amdt 1:1996 Information technology - database languages - SQL - definition of data structures and basic operations SQL:2008.