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Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems. Start learning SQL now » Examples in Each Chapter
19 mar 2019 · Master SQL – an essential skill for AI, machine learning, data analysis, and more! 📚 This beginner-friendly course teaches you SQL from scratch.🚀 Want a co...
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USEFUL FUNCTIONS. Get the count of characters in a string: SELECT LENGTH('LearnSQL.com'); -- result: 12. Convert all letters to lowercase: SELECT LOWER('LEARNSQL.COM'); -- result: learnsql.com. Convert all letters to uppercase: SELECT UPPER('LearnSQL.com'); -- result: LEARNSQL.COM.
1 cze 2021 · USEFUL FUNCTIONS. Get the count of characters in a string: SELECT LENGTH('LearnSQL.com'); -- result: 12. Convert all letters to lowercase: SELECT LOWER('LEARNSQL.COM'); -- result: learnsql.com. Convert all letters to uppercase: SELECT UPPER('LearnSQL.com'); -- result: LEARNSQL.COM.
In this 4-Hour SQL Course for Beginners, you'll learn everything you need to get started with SQL!⬇️ Free Materials (Downloads): https://datawithbaraa.substa...
Overview:For decades, T-SQL (Structured Query Language) has been the primary language for storing, retrieving, and manipulating data in databases. As great...
