About the test
The SQL - Basic (Short) assessment is designed to measure the foundational SQL knowledge and skills of job candidates and employees at the entry to mid level, focusing on their ability to write, debug, and maintain SQL scripts in business environments. The test evaluates core competencies across six key areas: SELECT Statements and Filtering, JOIN Operations, Aggregate Functions and GROUP BY, INSERT, UPDATE, and DELETE Statements, Table Definition and Constraints, and Subqueries and NULL Handling. Candidates are assessed on their ability to construct and interpret SQL queries, manipulate data, define database structures, and apply constraints and set operations. The assessment measures skill-based proficiency using a variety of question formats including Multiple Choice, Multiple Correct Answer, and Essay Composition questions. Questions are drawn from a large pool to minimize the risk of cheating, and one or more questions include individual time limits to further deter dishonesty and enhance predictive accuracy. Artificial intelligence is used to assist in scoring one or more questions, ensuring a thorough and objective evaluation of each candidate's SQL capabilities.
The specific attributes measured include:
Knowledge and Skills
- Aggregate Functions and GROUP BY
- INSERT, UPDATE, and DELETE Statements
- JOIN Operations
- SELECT Statements and Filtering
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Following completion, the test produces a Candidate Selection Report that includes an overall score and detailed scores for each attribute.
The Candidate Selection Report also provides expert interview questions that help you probe critical or low-scoring areas, along with a guide for noting your evaluation of the candidate's responses. Consistent use of an interview guide is an important part of gaining better candidate insights and making better hiring decisions.
Note that while the SQL - Basic (Short) assessment is a useful and efficient instrument for confirming a base level of skill or knowledge about this important topic, it is not intended to pinpoint the exact level of candidate or skill. We recommend that skills tests, like this one, be used in parallel with other measurements, such as cognitive ability, job fit, and behavioral history. Each different type of test provides a valuable piece of information you can use when evaluating potential job performance.
Version: 1, Created: 06/28/2026 10:43 AM,
(Internal Use) pid=9627, CTB Direct Test