https://dev.mysql.com/char.html
The CHAR and VARCHAR types are similar, but differ in the way they are stored and retrieved. They also differ in maximum length and in whether trailing spaces are retained. The CHAR and VARCHAR types are declared with a length that indicates the ...
https://dev.mysql.com/column-count-limit.html
MySQL has hard limit of 4096 columns per table, but the effective maximum may be less for a given table. The exact column limit depends on several factors: The maximum row size for a table constrains the number (and possibly size) of columns ...
https://dev.mysql.com/string-functions.html
For functions that operate on string positions, the first position is numbered 1. For functions that take length arguments, noninteger arguments are rounded to the nearest integer. ASCII(str) Returns the numeric value of the leftmost character of ...
https://dev.mysql.com/plugin-data-structures.html
A plugin library file includes descriptor information to indicate what plugins it contains. If the plugin library contains any server plugins, it must include the following descriptor information: A library descriptor indicates the general server ...
https://dev.mysql.com/writing-authentication-plugins.html
MySQL supports pluggable authentication, in which plugins are invoked to authenticate client connections. Authentication plugins enable the use of authentication methods other than the built-in method of passwords stored in the mysql.user system ...
https://dev.mysql.com/faqs-cjk.html
This set of Frequently Asked Questions derives from the experience of MySQL's Support and Development groups in handling many inquiries about CJK (Chinese-Japanese-Korean) issues. What problems should I be aware of when working with the Big5 ...
https://dev.mysql.com/mysql-options.html
int mysql_options(MYSQL *mysql, enum mysql_option option, const void *arg) Can be used to set extra connect options and affect behavior for a connection. This function may be called multiple times to set several options. The option argument is the ...
https://dev.mysql.com/cast-functions.html
Table 12.14 Cast Functions and Operators Name Description BINARY Cast a string to a binary string CAST() Cast a value as a certain type CONVERT() Cast a value as a certain type Cast functions and operators enable conversion of values from one data ...
https://dev.mysql.com/mysql-cluster-programs-ndb-restore.html
The cluster restoration program is implemented as a separate command-line utility ndb_restore, which can normally be found in the MySQL bin directory. This program reads the files created as a result of the backup and inserts the stored information ...
https://dev.mysql.com/mysql-command-options.html
mysql supports the following options, which can be specified on the command line or in the [mysql] and [client] groups of an option file. For information about option files used by MySQL programs, see Section 4.2.7, “Using Option Files”. This ...
