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Unit of competency details

ICTPRG425 - Use structured query language (Release 1)

Summary

Usage recommendation:
Superseded
Mapping:
MappingNotesDate
Supersedes and is equivalent to ICAPRG425A - Use structured query languageUpdated to meet Standards for Training Packages 24/Mar/2015
Is superseded by and equivalent to ICTWEB451 - Apply structured query language in relational databases 20/Jul/2020

Releases:
ReleaseRelease date
1 1 (this release) 25/Mar/2015


Qualifications that include this unit

CodeSort Table listing Qualifications that include this unit by the Code columnTitleSort Table listing Qualifications that include this unit by the Title columnUsage RecommendationRelease
ICT40115 - Certificate IV in Information TechnologyCertificate IV in Information TechnologySuperseded1-2 
ICT40418 - Certificate IV in Information Technology NetworkingCertificate IV in Information Technology NetworkingSuperseded1-2 
ICT40415 - Certificate IV in Information Technology NetworkingCertificate IV in Information Technology NetworkingSuperseded1-2 
ICT40215 - Certificate IV in Information Technology SupportCertificate IV in Information Technology SupportSuperseded1-4 
ICT40715 - Certificate IV in Systems Analysis and DesignCertificate IV in Systems Analysis and DesignSuperseded1-2 
ICT50515 - Diploma of Database Design and DevelopmentDiploma of Database Design and DevelopmentSuperseded1-3 
ICT50215 - Diploma of Digital and Interactive GamesDiploma of Digital and Interactive GamesSuperseded1-3 
ICT50915 - Diploma of Digital Media TechnologiesDiploma of Digital Media TechnologiesSuperseded1-3 
ICT50615 - Diploma of Website DevelopmentDiploma of Website DevelopmentSuperseded1-3 
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Classifications

SchemeCodeClassification value
ASCED Module/Unit of Competency Field of Education Identifier 020103 Programming  

Classification history

SchemeCodeClassification valueStart dateEnd date
ASCED Module/Unit of Competency Field of Education Identifier 020103 Programming  30/Jul/2015 
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Unit Of competency

Modification History

Release 

Comments 

Release 1

This version first released with ICT Information and Communications Technology Training Package Version 1.0.

Application

This unit describes the skills and knowledge required to use a structured query language (SQL) to define, create, and manipulate database structures, and the associated data in a relational database.

It applies to individuals in a wide variety of information and communications technology (ICT) roles, where relational databases and SQL are being used.

No licensing, legislative or certification requirements apply to this unit at the time of publication.

Unit Sector

Programming and software development

Elements and Performance Criteria

ELEMENT 

PERFORMANCE CRITERIA 

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

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 comparison operators in the 'where' clause to compare numeric, character, string, date and time data

2.4 Use Boolean operators 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 arithmetical operators with the correct precedence

3.2 Use string functions, and operators, to obtain the required query output

3.3 Use mathematical functions to obtain the required output

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 the required columns, data types, keys, relationships, indexes and constraints

7.2 Use the relevant naming conventions for database elements

7.3 Create tables that implement the required elements

7.4 Manipulate tables to meet specific requirements

8. Create and use views

8.1 Create views that satisfy information requirements

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 information requirements

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

Foundation Skills

This section describes language, literacy, numeracy and employment skills incorporated in the performance criteria that are required for competent performance.

Skill 

Performance Criteria 

Description 

Reading

1.1, 1.2, 7.1

  • Interprets and critically analyses complex texts
  • Applies the appropriate strategies to construct meaning from complex texts

Writing

2.3-2.7, 3.1-3.5, 4.1, 5.1-5.4, 6.1-6.4, 7.3, 7.4, 8.1, 8.3, 9.1, 9.2, 9.4

  • Prepares documentation that expresses ideas, explores complex issues, and is constructed logically, succinctly and accurately
  • Writes and edits, computer code and technical data, ensuring the correct syntax and accuracy

Numeracy

3.1, 3.3

  • Selects from, and flexibly applies, a wide range of highly developed mathematical and problem-solving strategies and techniques in an SQL context
  • Uses a wide range of mainly formal, written mathematical language and representation, to communicate mathematically in an SQL context

Get the work done

All

  • Sequences and schedules complex activities and monitors implementation, when analysing and organising data, according to requirements
  • Uses systematic, analytical processes in complex, non-routine situations, setting goals, gathering relevant information, and identifying, and evaluating options against the agreed criteria, when evaluating business requirements in relation to the database design
  • Uses analytical processes to decide on a course of action, establishing the criteria for deciding between options, when problem-solving in relation to typical warnings and syntax errors
  • Uses formal and informal processes to monitor implementation of solutions and reflect on outcomes when creating tables, views, and stored procedures
  • Uses a systematic process to identify possible solutions to a difficult problem when writing SQL statements and sub-queries
  • Understands the key principles and concepts underpinning the design, and operation, of digital systems and tools, and applies these in relation to using SQL in a relational database

Unit Mapping Information

Code and title 

current version 

Code and title 

previous version 

Comments 

Equivalence status 

ICTPRG425 Use structured query language

ICAPRG425A Use structured query language

Updated to meet Standards for Training Packages

Equivalent unit

Links

Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=a53af4e4-b400-484e-b778-71c9e9d6aff2

 

Assessment requirements

Modification History

Release 

Comments 

Release 1

This version first released with ICT Information and Communications Technology Training Package Version 1.0.

Performance Evidence

Evidence of the ability to:

  • write a simple, structured query language (SQL) statement to retrieve and sort data
  • write an SQL statement that selectively retrieves data
  • write SQL statements that:
  • use functions and operators
  • use aggregation and filtering
  • retrieve data from multiple tables
  • write and execute SQL sub-queries
  • create and manipulate tables to meet specific requirements
  • create and use views that satisfy information requirements
  • create and use stored procedures.

Note: If a specific volume or frequency is not stated, then evidence must be provided at least once.

Knowledge Evidence

To complete the unit requirements safely and effectively, the individual must:

  • explain client-server concepts
  • explain data-integrity concepts
  • describe data-modelling structures
  • explain databases and database objects, including data types, data structures, identifiers and metadata
  • summarise programming concepts
  • give an overview of query design
  • give an overview of relational database design
  • describe the SQL client environment
  • describe the SQL server architecture.

Assessment Conditions

Gather evidence to demonstrate consistent performance in conditions that are safe and replicate the workplace. Noise levels, production flow, interruptions and time variances must be typical of those experienced in the programming and software development, and include access to:

  • special purpose tools, equipment and materials
  • industry software packages.

Assessors must satisfy NVR/AQTF assessor requirements.

Links

Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=a53af4e4-b400-484e-b778-71c9e9d6aff2