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1. www.w3schools.com › sqlSQL Tutorial - W3Schools

   www.w3schools.com › sql

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   SQL is a standard language for storing, manipulating and retrieving data in databases. 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.

2. learnsql.com › sql-window-functions-cheat-sheet › Window_Functions_Cheat_SheetA4 SQL Window Functions Cheat Sheet - LearnSQL.com

   learnsql.com › sql-window-functions-cheat-sheet › Window_Functions_Cheat_Sheet

   WINDOW FUNCTIONS. Window functions compute their result based on a sliding window frame, a set of rows that are somehow related to the current row. AGGREGATE FUNCTIONS VS. WINDOW FUNCTIONS. Unlike aggregate functions, window functions do not collapse rows. current row.

3. medium.com › javarevisited › 6-free-ebooks-and-pdfs-to-learn-sql-for-beginners-9b7 Free eBooks and PDFs to Learn SQL for Beginners (2024)

   medium.com › javarevisited › 6-free-ebooks-and-pdfs-to-learn-sql-for-beginners-9b

   1 maj 2023 · Here is my list of some of the best books to learn SQL, which is absolutely free. You can either download their PDF version for offline reading, or you can read them online. 1.

4. riptutorial.com › ebook › sqlLearning SQL eBook (PDF) - riptutorial.com

   riptutorial.com › ebook › sql

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   Learning SQL eBook (PDF) Download this eBook for free. Chapters. Chapter 1: Getting started with SQL. Chapter 2: ALTER TABLE. Chapter 3: AND & OR Operators. Chapter 4: Cascading Delete. Chapter 5: CASE. Chapter 6: Clean Code in SQL. Chapter 7: Comments. Chapter 8: Common Table Expressions. Chapter 9: CREATE Database. Chapter 10: CREATE FUNCTION.

5. learnsql.com › standard-sql-functions-cheat-sheet-letterLetter Standard SQL Functions Cheat Sheet - LearnSQL.com

   learnsql.com › standard-sql-functions-cheat-sheet-letter

   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.

6. medium.com › javarevisited › my-favorite-free-sql-server-books-pdfs-and-ebooks-for5 Free SQL Server Books and PDF for Programmers and DBAs in 2024

   medium.com › javarevisited › my-favorite-free-sql-server-books-pdfs-and-ebooks-for

   2 lut 2023 · In short, one of the best free SQL Server eBooks for both database administrators (DBA) and application developers.

7. learnsql.com › standard-sql-functions-cheat-sheet-a3A3 Standard SQL Functions Cheat Sheet - LearnSQL.com

   learnsql.com › standard-sql-functions-cheat-sheet-a3

   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.