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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!
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.
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.
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;
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
Download this eBook for free Chapters. Chapter 1: Getting started with Microsoft SQL Server; Chapter 2: Advanced options; Chapter 3: Aggregate Functions; Chapter 4: Alias Names in Sql Server; Chapter 5: Analyzing a Query; Chapter 6: Backup and Restore Database; Chapter 7: Basic DDL Operations in MS SQL Server
INTRODUCTION. What is SQL? Syntax & Structure. 1 | RETRIEVING DATA WITH SQL. The SELECT Statement. The FROM Clause. Limiting Data by Specifying Columns. SQL Predicates. Returning DISTINCT Rows. TOP. The WHERE Clause. Comparison Operators. Logical Operators. Dealing with Ranges & Wildcards. Operator Precedence. The ORDER BY Clause.
