This unit applies to web designers responsible for creating server-side interaction with dynamic web pages using SQL as a means of communicating with the database.
Not applicable.
1. Identify SQL requirements from the specification documentation | 1.1 Determine information to be used from database 1.2 Identify tables that hold this information 1.3 Identify primary keys in these tables 1.4 Identify relationships between these tables, including foreign keys |
2. Create a relational database | 2.1 Create tables in a database using SQL statements 2.2 Identify primary and foreign keys for database table 2.3 Manipulate data in a database using SQL statements 2.4 Query the database using SQL statements 2.5 Write SQL statements to retrieve information from database |
3. Test SQL results | 3.1 Construct test data to test SQL statements 3.2 Construct expected results to verify SQL statements 3.3 Verify result of the constructed SQL statements against expected results |
Required skills
analytical skills to determine the elements of the SQL statement
communication skills to:
document the code
understand the client requirements
learning skills to research encountered problems independently
literacy skills to create an SQL statement using syntax
planning and organisational skills to write an SQL statement that is cross-browser compatible
problem-solving skills to translate the required outcomes from the database into SQL statements
technical skills to:
apply programming concepts
integrate SQL statements into a variety of server-side languages.
Required knowledge
features and application of:
aggregate functions:
MIN
MAX
SUM
AVG
COUNT
COUNT(*)
clause:
GROUP BY
HAVING
ORDER BY
dates and times
SQL data types
numbers
text
SQL syntax:
SELECT
FROM
WHERE
LIKE
DISTINCT
CREATE
ALTER TABLE
INSERT INTO
UPDATE
DELETE
DROP
combining condition and Boolean operators:
IN and BETWEEN conditional operators
mathematical operators
table joins.
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 use SQL to: create databases and tables query one or more tables to provide required data add, modify and delete records from tables drop databases and tables. |
Context of and specific resources for assessment | Assessment must ensure access to: development environment server access database server appropriate learning and assessment support when required. Where applicable, physical resources should include equipment modified 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: verbal or written questioning to assess candidate’s knowledge of SQL statements and procedures review of project-based SQL application prepared by candidate. |
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 non-English speaking background may need additional support. In cases where practical assessment is used it should be combined with targeted questioning to assess required knowledge. |
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.
Database may include: | Access Informix Microsoft Structured Query Language (MS SQL) MySQL Oracle Postgre Sybase. |
SQL statements may include: | aggregate functions conditions and Boolean operators conditional operators mathematical operators table joins. |
Manipulating data may include: | creating tables and rows deleting tables and rows adding and altering data retrieving data. |
Web
This unit contains employability skills.
No licensing, legislative, regulatory or certification requirements apply to this unit at the time of endorsement but users should confirm requirements with the relevant federal, state or territory authority.