Unit of competency Outline

Date retreived
24/07/2026 2:07 AM AWST

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Use structured query language to create database structures and manipulate data

Use structured query language to create database structures and manipulate data

Unit of competency
National Code
ICAB4136B
State Code
D0046
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
1.00
Current Release Date
08/07/2010
View on TGA
State Implementation and Classification
Approved Date
15/03/2010
Field of Education
020103 - Programming
Original Release Date
15/03/2010
Nominal Hours
55
Description
This unit defines the competency required to use a structured query language (SQL) to define, create and manipulate database structures and associated data in a relational database.The following units are linked and form an appropriate cluster:ICAB4060B Identify physical database requirementsICAB4061B Monitor physical database implementationNo licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.
Notes
Elements and Performance Criteria
1. Write a simple SQL statement to retrieve and sort data
  • 1.1. Retrieve all the data from a single table
  • 1.2. Retrieve data from specific columns in a single table
  • 1.3. Use 'order by' to sort query output
2. Write an SQL statement that selectively retrieves data
  • 2.1. Restrict the number of rows retrieved by placing criteria in the 'where' clause
  • 2.2. Restrict the number of rows retrieved by placing specific criteria in the select statement
  • 2.3. Use comparisonoperators in the 'where' clause to compare numeric, character, string, date and time data
  • 2.4. Use Booleanoperators with the correct precedence
  • 2.5. Use criteria in the 'where' clause to check for a range of values, to select values from a list, and to check for values that match a pattern
  • 2.6. Use SQL syntax to suppress duplicate values from query results
  • 2.7. Take action to exclude null values from a query result
3. Write SQL statements that use functions
  • 3.1. Use arithmeticaloperators with the correct precedence
  • 3.2. Use string functions and operators to obtain the required query output
  • 3.3. Use mathematicalfunctions to obtain the required output, where required
  • 3.4. Use date functions to obtain the required output
  • 3.5. Use SQL aggregate functions to obtain the required output
4. Write SQL statements that use aggregation and filtering
  • 4.1. Use 'group by' to aggregate data by multiple columns
  • 4.2. Sort aggregated data in the query output
  • 4.3. Filter aggregated data using the 'having' clause
5. Write SQL statements that retrieve data from multiple tables
  • 5.1. Employ the inner join syntax to retrieve data from two or more tables
  • 5.2. Use 'left outer', 'right outer' and 'full outer' syntax to join tables in the select statement
  • 5.3. Use correct syntax in the 'where' clause to retrieve data from multiple tables
  • 5.4. Write a union query that retrieves data from more than one table
6. Write and execute SQL sub-queries
  • 6.1. Construct single and nested sub-queries
  • 6.2. Construct sub-queries that return a single row, and multiple rows
  • 6.3. Use correlated sub-queries to retrieve required data
  • 6.4. Write sub-queries that use aggregates
7. Create and manipulate tables
  • 7.1. Identify required columns, data types, keys, relationships, indexes and constraints
  • 7.2. Use relevant naming conventions for all database elements
  • 7.3. Create tables that implement all required elements
  • 7.4. Insert rows into tables
  • 7.5. Update some or all of the data in a table
  • 7.6. Add columns to a table
  • 7.7. Modify a column within a table
  • 7.8. Delete a column from a table
  • 7.9. Delete rows from a table
  • 7.10. View detailed information regarding a table
  • 7.11. Delete tables with regard to referential integrity rules
8. Create and use views
  • 8.1. Create views that satisfy informationrequirements
  • 8.2. Use check constraints in a view
  • 8.3. Retrieve, insert, update and delete data using a view
  • 8.4. Drop a view from a database
9. Create and use stored procedures
  • 9.1. Create and execute stored procedures that use SQL to retrieve, insert or modify data according to informationrequirements
  • 9.2. Create and execute stored procedures that use one or more parameters
  • 9.3. Drop a stored procedure from the database
  • 9.4. Create and test database triggers that automate data management or perform specific required data-related functions
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.
Comparison operators may include:
equal to
not equal to
greater than
less than
greater than or equal to
less than or equal to
Booleanoperators may include the use of:
AND
OR
NOT
Database may include but are not limited to:
Oracle
Sybase
Microsoft SQL Server
Ingres
DB2
Informix
mSQL
MySQL
SQL Server PostgresSQL
Arithmeticaloperators may include:
addition
subtraction
multiplication
modulus division
Mathematicalfunctions may include:
cos
log
power
sin
square root
Informationrequirements may include:
reports
summaries
letters
other business documents required by the organisation
EVIDENCE GUIDE
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 following is essential:
Assessment must confirm the ability to use a structured query language to create database structures, and store, retrieve and manipulate data in a relational database.

To demonstrate competency in this unit the person will require access to:
Client requirements
Functionality and scope requirements
Access requirements and policy
Security policy
Naming standards
Context of and specific resources for assessment
SQL database functions are in place for most organisations and have become integral to internet-based data provision and data retrieval.

Any assessment of this unit of competency will usually include observation of real or simulated SQL code development and processes data engineering.

The breadth, depth and complexity of knowledge and skills in this competency would cover a broad range of varied activities or application in a wider variety of contexts most of which are complex and non-routine. Leadership and guidance would be involved when organising activities of self and others as well as contributing to technical solutions of a non-routine or contingency nature.

Assessment must ensure:
Performance of a broad range of skilled applications including the requirement to evaluate and analyse current practices, develop new criteria and procedures for performing current practices and provision of some leadership and guidance to others in the application and planning of the skills would be characteristic.

Applications may involve responsibility for, and limited organisation of, others.
Applications involve responsibility for SQL code structures and manipulation of data.
Method of assessment
The purpose of this unit is to define the standard of performance to be achieved in the workplace. In undertaking training and assessment activities related to this unit, consideration should be given to the implementation of appropriate diversity and accessibility practices in order to accommodate people who may have special needs. Additional guidance on these and related matters is provided in ICA05 Section 1.

Competency in this unit should be assessed using summative assessment to ensure consistency of performance in a range of contexts. This unit can be assessed either in the workplace or in a simulated environment. However, simulated activities must closely reflect the workplace to enable full demonstration of competency.

Assessment will usually include observation of real or simulated work processes and procedures and/or performance in a project context as well as questioning on underpinning knowledge and skills. The questioning of team members, supervisors, subordinates, peers and clients where appropriate may provide valuable input to the assessment process. The interdependence of units for assessment purposes may vary with the particular project or scenario.
Guidance information for assessment
Holistic assessment with other units relevant to the industry sector, workplace and job role is recommended, for example:
ICAB4060B Identify physical database requirements
ICAB4061B Monitor physical database implementation

An individual demonstrating this competency would be able to:
Demonstrate understanding of a broad knowledge base incorporating some theoretical concepts
Apply solutions to a defined range of unpredictable problems
Identify and apply skill and knowledge areas to a wide variety of contexts, with depth in some areas
Identify, analyse and evaluate information from a variety of sources
Take responsibility for own outputs in relation to specified quality standards
Take limited responsibility for the quantity and quality of the output of others
Demonstrate understanding of broad database structures incorporating some theoretical concepts
Manipulate data and provide solutions to a defined range of unpredictable problems
Take limited responsibility for the quantity and quality of database data
Maintain knowledge of industry products and services
Replaces
State Code National Code Title Type
C8686 ICAB4136A Use structured query language to create database structures and manipulate data Unit of competency
Replaced By
State Code National Code Title Type
D8012 ICAPRG425A Use structured query language Unit of competency