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  1. SQL Handwritten Notes Repository: A collection of PDF notes covering SQL concepts with concise definitions and examples. Explore fundamental commands, date/time functions, joins, and more. Contributions welcome! Happy studying and coding!

  2. SQL Cheat Sheet. The SQL cheat sheet provides you with the most commonly used SQL statements for your reference. You can download the SQL cheat sheet as follows: Download 3-page SQL cheat sheet in PDF format.

  3. 25 sie 2023 · Your quick guide to SQL functions! Download the cheat sheet in PDF or PNG for syntax reference, examples, and tips.

  4. 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.

  5. 25 cze 2024 · Master SQL fundamentals with this SQL Cheat Sheet for beginners. Includes basic commands, syntax, and examples. Download the PDF today!

  6. The execution order of the different SQL keywords doesn't allow you to filter with the WHERE clause on the result of an aggregate function (COUNT, SUM, etc.). This is because WHERE is executed before the aggregate functions. But that's what HAVING is for: SELECT column1, COUNT(column2) FROM table_name.

  7. Whether you need a quick reference for major SQL concepts before an interview, or you want to level-up your existing SQL skills, our SQL cheat sheet is the ideal starting point. Plus, we’ve broken it down into 11 essential SQL topics to help you get the most from this SQL query cheat sheet.

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