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18 wrz 2024 · These MCQs assess knowledge of SQL commands, query optimization techniques, database design principles, and data manipulation operations. Find out how much you know about this programming language by solving SQL MCQs now!
1 cze 2021 · Standard SQL Functions Cheat Sheet. TEXT FUNCTIONS. CONCATENATION. Use the || operator to concatenate two strings: SELECT 'Hi ' || 'there!'; -- result: Hi there! Remember that you can concatenate only character strings using ||. Use this trick for numbers: SELECT '' || 4 || 2; -- result: 42.
17 wrz 2024 · This article presents 12 SQL functions practice questions – with solutions and detailed explanations – that will help you solidify your SQL knowledge. Practicing SQL is important if you want to improve your skills.
SQL Practice Questions - Solution 1. For the following relation schema: employee(employee-name, street, city) works(employee-name, company-name, salary) company(company-name, city) manages(employee-name, manager-name) Give an expression in SQL for each of the following queries:
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.
5 wrz 2024 · Get Intermediate SQL Multiple Choice Questions (MCQ Quiz) with answers and detailed solutions. Download these Free Intermediate SQL MCQ Quiz Pdf and prepare for your upcoming exams Like Banking, SSC, Railway, UPSC, State PSC.
