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https://dev.mysql.com/doc/refman/8.4/en/bit-value-literals.html
To convert a bit value to printable form, use it in numeric context or use a conversion function such as BIN() or HEX(). A leading 0b is case-sensitive and cannot be written as 0B. In numeric contexts, MySQL treats a bit literal like an integer. To ...
https://dev.mysql.com/doc/refman/8.4/en/can-not-connect-to-server.html
Under Linux or Unix, check your IP tables (or similar) configuration to ensure that the port has not been blocked. A MySQL client on Unix can connect to the mysqld server in two different ways: By using a Unix socket file to connect through a file ...
https://dev.mysql.com/doc/refman/8.4/en/cannot-create.html
If you get an error of the following type for some queries, it means that MySQL cannot create a temporary file for the result set in the temporary directory: Can't create/write to file '\\sqla3fe_0.ism'. The preceding error is a typical message for ...
https://dev.mysql.com/doc/refman/8.4/en/case-sensitivity.html
For nonbinary strings (CHAR, VARCHAR, TEXT), string searches use the collation of the comparison operands. For binary strings (BINARY, VARBINARY, BLOB), comparisons use the numeric values of the bytes in the operands; this means that for alphabetic ...
https://dev.mysql.com/doc/refman/8.4/en/channels-naming-conventions.html
Because channel names are used in the replica's applier metadata repository table, the character set used for these is always UTF-8. This section describes how naming conventions are impacted by replication channels. Each replication channel has a ...
https://dev.mysql.com/doc/refman/8.4/en/charset-charsets.html
To list the available character sets and their default collations, use the SHOW CHARACTER SET statement or query the INFORMATION_SCHEMA CHARACTER_SETS table. There is one subsection for each group of related character sets. To avoid choosing the ...
https://dev.mysql.com/doc/refman/8.4/en/charset-collation-coercibility.html
In the great majority of statements, it is obvious what collation MySQL uses to resolve a comparison operation. For example, in the following cases, it should be clear that the collation is the collation of column x: SELECT x FROM T ORDER BY x; ...
https://dev.mysql.com/doc/refman/8.4/en/charset-configuration.html
To determine which collations are available for each character set, use the SHOW COLLATION statement or query the INFORMATION_SCHEMA COLLATIONS table. The MySQL server has a compiled-in default character set and collation. To change these defaults, ...
https://dev.mysql.com/doc/refman/8.4/en/charset-errors.html
Parameters in the message template are replaced with values that apply to a specific error occurrence: Identifiers such as table or column names use UTF-8 internally so they are copied as is. This section describes how the MySQL server uses ...
https://dev.mysql.com/doc/refman/8.4/en/charset-general.html
Mix strings with different character sets or collations in the same server, the same database, or even the same table. A character set is a set of symbols and encodings. A collation is a set of rules for comparing characters in a character set.