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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; Chapter 11: CREATE TABLE; Chapter 12: cross apply, outer apply ...
- SQL
Many SQL databases are implemented as client/server systems;...
- Cascading Delete
Cascading Delete - Learning SQL eBook (PDF) -...
- CREATE Database
CREATE Database - Learning SQL eBook (PDF) - riptutorial.com
- Stored Procedures
Stored Procedures are SQL statements stored in the database...
- DROP or DELETE Database
DROP or DELETE Database - Learning SQL eBook (PDF) -...
- In Clause
In Clause - Learning SQL eBook (PDF) - riptutorial.com
- Triggers
Triggers - Learning SQL eBook (PDF) - riptutorial.com
- CASE
Learn SQL - The CASE expression is used to implement if-then...
- SQL
1 cze 2021 · Fetch all names that start with any letter followed by 'atherine': SELECT name FROM names WHERE name LIKE '_atherine'; Fetch all names that end with 'a': SELECT name FROM n ames WHERE Sname LIKE '%a'; USEFUL FUNCTIONS Get the count of characters in a string: SELECT. LENGTH('LearnSQL.com');-- result: 12 Convert all letters to lowercase: SELECT ...
I learned SQL using Books #1 and #4. Book #4, Learning SQL, helped me the most as a complete beginner. And Book #1, SQL Cookbook, helped me test and build upon my learnings from book #4. I'd recommend them to anyone starting out. And book #6, The Art of SQL, is also great.
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.
You’ll learn the theory behind T-SQL querying and programming and how to develop T-SQL code to query and modify data, and you’ll get an overview of programmable objects. Although this book is intended for beginners, it’s not merely a set of procedures for readers to follow.
1 cze 2021 · Use the || operator to concatenate two strings: SELECT 'Hi ' || 'there!'; -- result: Hi there! ||. Use this trick for numbers: Some databases implement non-standard solutions for concatenating strings like CONCAT() or CONCAT_WS(). Check the documentation for your specific database. Use the _ character to replace any single character.
25 lut 2018 · vi SQL For Dummies REF types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 User-defined types ...
