MySQL Tutorials - Herong's Tutorial Notes

∟Commonly Used Functions

This chapter provides tutorial notes on built-in functions. Topics include commonly used flow control functions, character string functions, numeric functions, data and time functions, the cast function.

Flow Control Functions

Character String Functions

Numeric Functions

Date and Time Functions

Cast Function

Conclusion:

• Flow control functions return different values based on different conditions, like CASE and IF functions.
• Character string functions work on character string values like CONCAT(), CHAR_LENGTH(), SUBSTRING(), and TRIM() functions.
• Numeric functions work on numeric values like ABS(), COS(), RANDOM(), and ROUND() functions.
• Date and time functions work on data and time values like CURRENT_DATE(), CURRENT_TIME() and EXTRACT() functions.
• The CAST() function can convert a value of any datatype to any other datatype.

All notes and examples in chapter are based on SQL-92 and MySQL server.

Table of Contents

 About This Book

 Introduction of SQL

 MySQL 4.0 Introduction and Installation

 Installing MySQL 5.5.15

 Installing MySQL 5.0.2 (Alpha)

 Introduction of MySQL 5.0 Programs

 Perl Programs and MySQL Servers

 PHP Programs and MySQL Servers

 Java Programs and MySQL Servers

 Datatypes and Data Literals

 Operations and Expressions

 Character Strings and Bit Strings

►Commonly Used Functions

 Table Column Types for Different Types of Values

 Using DDL to Create Tables and Indexes

 Using DML to Insert, Update and Delete Records

 Using SELECT to Query Database

 Transaction Management and Isolation Levels

 Locks-Used-in-MySQL

 Defining and Calling Stored Procedures

 Variables, Loops and Cursors Used in Stored Procedures

 References

 Printable Copy - PDF Version