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This edition of SQL Practice Problems assumes that you have some basic background knowledge about relational databases and tables. However, I’ve added some beginner level questions to gradually introduce the various parts of the SQL Select statement for those with less experience in SQL.
We have gathered a variety of SQL exercises (with answers) for each SQL Chapter. Try to solve an exercise by filling in the missing parts of a code. If you're stuck, hit the "Show Answer" button to see what you've done wrong.
22 paź 2024 · This SQL quiz covers various topics like SQL basics, CRUD operations, operators, aggregation functions, constraints, joins, indexes, transactions, and query-based scenarios. We've included multiple-choice questions, fill-in-the-blank questions, and interactive coding challenges to keep things interesting and challenging.
17 wrz 2024 · This article offers 12 SQL function practice exercises. Learn about string, numeric, and NULL functions! Each exercise is accompanied by a solution query and detailed explanation.
18 sty 2024 · Practice basic SQL – writing SELECT queries, joining multiple tables, using aggregate functions, and working with GROUP BY – for free with these 18 beginner-friendly exercises. Solutions and explanations included!
Find the names of all employees in the database who live in the same cities and on the same streets as do their managers. select p.employee-name from employee p, employee r, manages m where p.employee-name = m.employee-name and m.manager-name = r.employee-name and p.street = r.street and p.city = r.city.
Structured Query Language. SQL Certification Practice Test 2023. SQL (Structured Query Language) is a standardized programming language for managing relational databases and performing operations on the data contained within them.
