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https://dev.mysql.com/charset-errors.html
The encoding uses Unicode code point values: Characters in the Basic Multilingual Plane (BMP) range (0x0000 to 0xFFFF) are written using \nnnn notation. This section describes how the MySQL server uses character sets for constructing error messages. For information about the language of error messages (rather than the character set), see Section 10.12, “Setting the Error Message ...
https://dev.mysql.com/charset-unicode-utf16.html
The utf16 character set is the ucs2 character set with an extension that enables encoding of supplementary characters: For a BMP character, utf16 and ucs2 have identical storage characteristics: same code values, same encoding, same length. For a ...
https://dev.mysql.com/charset-unicode-utf8.html
Although utf8 is currently an alias for utf8mb3, at some point utf8 will become a reference to utf8mb4. For more information, see Section 10.9.2, “The utf8mb3 Character Set (3-Byte UTF-8 Unicode Encoding)”. Note The utf8mb3 character set is ...
https://dev.mysql.com/charset-unicode-utf8mb3.html
Although utf8 is currently an alias for utf8mb3, at some point utf8 will become a reference to utf8mb4. The utf8mb3 character set has these characteristics: Supports BMP characters only (no support for supplementary characters) Requires a maximum ...
https://dev.mysql.com/charset-we-sets.html
This means it is the same as the official ISO 8859-1 or IANA (Internet Assigned Numbers Authority) latin1, except that IANA latin1 treats the code points between 0x80 and 0x9f as “undefined,” whereas cp1252, and therefore MySQL's latin1, assign ... Western European character sets cover most West European languages, such as French, Spanish, Catalan, Basque, Portuguese, Italian, Albanian, Dutch, German, Danish, Swedish, Norwegian, Finnish, Faroese, Icelandic, Irish, Scottish, and ...
https://dev.mysql.com/clone-plugin-monitoring.html
Monitoring Cloning Operations using Performance Schema Clone Tables Monitoring Cloning Operations Using Performance Schema Stage Events Monitoring Cloning Operations Using Performance Schema Clone Instrumentation The Com_clone Status Variable A ...
https://dev.mysql.com/comparison-operators.html
Table 12.3 Comparison Operators Name Description > Greater than operator >= Greater than or equal operator < Less than operator <>, != Not equal operator <= Less than or equal operator <=> NULL-safe equal to operator = Equal operator BETWEEN ...
https://dev.mysql.com/connection-access.html
From MySQL's point of view, the encrypted password is the real password, so you should never give anyone access to it. When you attempt to connect to a MySQL server, the server accepts or rejects the connection based on these conditions: Your ...
https://dev.mysql.com/connection-control-variables.html
If a client has reached the point where connection responses are delayed, the delay also occurs for the next subsequent successful connection. This section describes the system and status variables that the CONNECTION_CONTROL plugin provides to ...
https://dev.mysql.com/constant-folding-optimization.html
row *************************** Level: Note Code: 1003 Message: /* select#1 */ select `test`.`t`.`ti` AS `ti` from `test`.`t` where (`test`.`t`.`ti` = 255) 1 row in set (0.00 sec) Floating- or fixed-point value. Comparisons between constants and ...
Document created the 26/06/2006, last modified the 26/10/2018
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