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1 cze 2021 · USEFUL FUNCTIONS. Get the count of characters in a string: SELECT LENGTH('LearnSQL.com'); -- result: 12. Convert all letters to lowercase: SELECT LOWER('LEARNSQL.COM'); -- result: learnsql.com. Convert all letters to uppercase: SELECT UPPER('LearnSQL.com'); -- result: LEARNSQL.COM.
1 cze 2021 · USEFUL FUNCTIONS. Get the count of characters in a string: SELECT LENGTH('LearnSQL.com'); -- result: 12. Convert all letters to lowercase: SELECT LOWER('LEARNSQL.COM'); -- result: learnsql.com. Convert all letters to uppercase: SELECT UPPER('LearnSQL.com'); -- result: LEARNSQL.COM.
1 cze 2021 · USEFUL FUNCTIONS. Get the count of characters in a string: SELECT LENGTH('LearnSQL.com'); -- result: 12. Convert all letters to lowercase: SELECT LOWER('LEARNSQL.COM'); -- result: learnsql.com. Convert all letters to uppercase: SELECT UPPER('LearnSQL.com'); -- result: LEARNSQL.COM.
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.
How to convert SQL to PDF. Upload your SQL files to convert. Set table style if needed. Press the "CONVERT" button. Download the converted SQL files instantly or send a download link to email. Note that file will be deleted from our servers after 24 hours and download links will stop working after this time period. Fast and Easy Conversion.
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.
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.
