Test is combined from various tasks. SQL task and Choice questions. All evaluated automatically.
SQL | Customer Data - Find all the customers whose first and last names are not unique in this database, as well as the number of times each first and last name pair appears in the database.
Tested skills: HSQLDB, MSSQL, MySQL, oracle, PostgreSQL, SQL
5 choice questions assessing knowledge of SQL
Tested skills: SQL
We automatically score multi-choice tests and programming tasks and evaluate candidate code for logical correctness, time efficiency and code quality.