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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 ».

2. sqlnotebook.comSQL Notebook

   sqlnotebook.com

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   Open source app for casual data exploration in SQL. Import your data from CSV, Excel, Microsoft SQL Server, PostgreSQL, and MySQL. Then use a Jupyter-style notebook interface for exploratory queries, and write stored procedures for reusable logic.

3. learnsql.com › standard-sql-functions-cheat-sheet-mobileMobile-friendly Standard SQL Functions Cheat Sheet - LearnSQL.com

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

   Standard SQL Functions Cheat Sheet. NUMERIC FUNCTIONS. BASIC OPERATIONS. Use +, -, *, / to do some basic math. To get the number of seconds in a week: SELECT 60 * 60 * 24 * 7; -- result: 604800. CASTING. From time to time, you need to change the type of a number. The . CAST() function is there to help you out. It lets you change the type of ...

4. 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.

5. 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.

6. github.com › ESCLabSciences › plsqlPdfGenPdfGen - An Oracle PL/SQL PDF Generator - GitHub

   github.com › ESCLabSciences › plsqlPdfGen

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   A PL/SQL PDF report generator providing some of the column, column break and header capabilities of sqlplus reports. Built on as_pdf3 from Anton Scheffer (included). Resources

7. www.halvorsen.blog › documents › tutorialsStructured Query Language - halvorsen.blog

   www.halvorsen.blog › documents › tutorials

   SQL (Structured Query Language) is a database computer language designed for managing data in relational database management systems (RDBMS). SQL, is a standardized computer language that was originally developed by IBM for querying, altering and defining relational databases, using declarative statements.