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28 maj 2024 · Enhance your SQL Server proficiency with our SQL Server practice exercises. Each of these 15 practical T-SQL tasks includes a detailed solution to help you improve your querying skills. You know how everyone says, "Practice makes perfect"?
You need to change your code to something like this: @selectoneCount = CASE @Temp. WHEN 1 THEN @selectoneCount + 1. WHEN 2 THEN @selectoneCount + 1. END. If @temp is set to none of those values (1 or 2), then you'll get back a NULL.
22 paź 2024 · These exercises are designed to provide hands-on experience with common SQL tasks, from basic retrieval and filtering to more advanced concepts like joins window functions, and stored procedures. Practice SQL questions to enhance our skills in database querying and manipulation.
23 paź 2024 · SQL statements are used to retrieve and update data in a database. The best way we learn anything is by practice and exercise questions. We have started this section for those (beginner to intermediate) who are familiar with SQL .
30 sie 2022 · This article provides you implementation details of SQL server switch case statement and how to use it with examples
4 cze 2024 · Want to judge your SQL skills? These challenges let you test your talents. Get hands-on practice querying, retrieving data, subquery, joins, union, view, insert, update and delete data on multiple tables and multiple records, and presenting summary data.
30 lis 2023 · In this article, we'll improve our SQL skills through 15 practical, hands-on exercises designed specifically for beginners. Because when it comes to SQL, practice truly makes perfect! We’re going to shine a spotlight on the critical domain of data analysis, where SQL takes center stage.
