The following languages have pre-packaged hiring tests available to deploy:
SQL (Standard Query Language)
Beginner: SELECT; INSERT; UPDATE; DELETE; WHERE; GROUP BY; HAVING; ORDER BY; LIMIT; BETWEEN; INNER JOIN; UNION
Intermediate: LEFT JOIN; RIGHT JOIN; SELF JOIN; CROSS JOIN; UNION ALL; EXISTS; subqueries; IN; aggregate functions; window functions; PARTITION;; MIN; MAX; COUNT; SUM; CREATE TABLE; ALTER TABLE; DATEDIFF(); primary keys; CASE; LIKE
Expert: stored procedures; triggers; views; database optimization; performance tuning; CREATE INDEX; CREATE VIEW; clustered indexes; ROLLBACK; foreign keys
Go or GoLang: (120 total questions)
Basic syntax, packages, init, control structures (loops, if/else, switch), arrays, slices, maps, structs, maps, pointers, unsafe, references, defer, return, functions, call, variadic, interfaces, type assertion, channels, strconv, strings, run
JAVA
In Development
Python for software engineering
In Development
Python for Data Science:
In Development