mysql enum tutorial

Background: currently, tinyint is widely used for enum. is enum useless? The PHP low-level programming team looks at this issue as follows. I hope to objectively understand the advantages and disadvantages of this enum field: Yan Ge's point of view:

Tips: obtain all possible values of the ENUM enumeration column in MYSQL .. Obtaining all possible values of the ENUM (enumeration) column in MYSQL does not require any other functions. you only need to use some SQL statements provided by MYSQL. In

MySQL tutorial SQL enum data type INSERT, UPDATE, delete operation The enum column always has 1 default values. If you do not specify a default value, the default value is NULL for columns that contain NULL, otherwise the 1th enumeration value will

1. Download the installation file from the Internet (here I download a MySQL binary distribution)Http://dev.mysql.com/downloads/index.html 2. Upload the file to the host through securecrtCopy mysql-3.23.58-pc-linux-i686.tar to C:/program

This tutorial does not want you to fully understand the language, but it will allow you to join the development of dynamic Web sites as soon as possible. I assume you have some basic knowledge of HTML (or HTML editor) and some programming

PHP and MySQL basic tutorial (4 ). For MySQL, the first thing you must remember is that every line of its commands is ended with a semicolon (;), ...... There is no such thing as absolute. The same is true here. SQL in MySQL For MySQL, the first

Extmysql extension of PHP source code. I have written an external module extension. now I am looking at the mysql extension in the PHP source code. it can be integrated into PHP, so it should be a built-in extension. I have written an external

PHP and MySQL basic tutorial (4), read basic PHP and MySQL tutorial (4), MySQL SQL for MySQL, first, you must keep in mind that every line of its command is ended with a semicolon (;), ...... There is no such thing as absolute. The same is true here.

I have written an external module extension, now start to see the PHP source in the MySQL extension, it can be integrated into the PHP internal, so should be considered as built-in extension. This extension requires some of the interfaces provided

mysql| Reference | reference Manual | chinese MySQL Chinese reference manual (catalog) Reprinted translator: Yan Zi return 〗〖 Forwarding Translator: Yan Zi (clyan@sohu.com) Homepage: http://linuxdb.yeah.net 0 Translator Preface 1 General