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SQL developer interview questions and tests
Bewertung der Kenntnisse über Logisches Denken, Mathematik, MySQL, SQL
Bewertung der Kenntnisse über SQL
SQL | MySQL | Stamps catalogue | AVG Function - Select the stamps (name and price) with price greater than or equal to the total average price.
Bewertung der Kenntnisse über Logisches Denken, SQL, MySQL
Bewertung der Kenntnisse über MySQL, SQL
SQL | MySQL | Stamps catalogue | A Self JOIN - Select stamps (name and location) that are in the same location.
SQL | Stamps catalogue | The three highest prices - Select three stamps (price and name) with the highest price.
Python | Pandas | HTML table parser - Implement a function to convert HTML table into a CSV-format file.
Bewertung der Kenntnisse über SQL, MongoDB, NoSQL
Bewertung der Kenntnisse über MongoDB
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.
Bewertung der Kenntnisse über SQL, MongoDB, NoSQL
Bewertung der Kenntnisse über MongoDB
SQL | Fill sparse table - Write a query that will return the list of all users with the creation date and return the date from the previous not-null row for the entries affected with the bug.
Bewertung der Kenntnisse über SQL, MySQL
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.
Bewertung der Kenntnisse über SQL
SQL | Fill sparse table - Write a query that will return the list of all users with the creation date and return the date from the previous not-null row for the entries affected with the bug.
Bewertung der Kenntnisse über SQL
SQL | Books | find books without ratings - Select all title of the books which have no rating.
The candidate will be asked to solve two simple SQL queries related to a database with books and reviews data.
