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https://dev.mysql.com/doc/refman/9.7/en/account-names.html
For a host value specified as an IPv4 address, a netmask can be given to indicate how many address bits to use for the network number. A netmask typically begins with bits set to 1, followed by bits set to 0. MySQL account names consist of a user ...
https://dev.mysql.com/doc/refman/9.7/en/cast-functions.html
To override this, use the SIGNED or UNSIGNED cast operator to cast a value to a signed or unsigned 64-bit integer, respectively. Table 14.15 Cast Functions and Operators Name Description Deprecated BINARY Cast a string to a binary string Yes CAST() ...
https://dev.mysql.com/doc/refman/9.7/en/charset-unicode.html
They can be encoded in a variable-length encoding using 8, 16, or 24 bits (1 to 3 bytes). They can be encoded in a fixed-length encoding using 16 bits (2 bytes). The UTF-8 (Unicode Transformation Format with 8-bit units) method for encoding Unicode ... The Unicode Standard includes characters from the Basic Multilingual Plane (BMP) and supplementary characters that lie outside the ...
https://dev.mysql.com/doc/refman/9.7/en/disk-issues.html
RAID N can be a problem if you have many writes, due to the time required to update the parity bits. NFS Version 2 clients can only access the lowest 2GB of a file (signed 32 bit offset). NFS Version 3 clients support larger files (up to 64 bit ...
https://dev.mysql.com/doc/refman/9.7/en/enterprise-encryption-functions.html
The function accepts digests but does not require them, as it is also capable of handling data strings of an arbitrary length. The component function accepts digests but does not require them, as it is also capable of handling data strings of an ...
https://dev.mysql.com/doc/refman/9.7/en/flow-control-functions.html
The second syntax returns the result for the first condition that is true. If no comparison or condition is true, the result after ELSE is returned, or NULL if there is no ELSE part. Note The syntax of the CASE operator described here differs ...
https://dev.mysql.com/doc/refman/9.7/en/glossary.html
BLOB An SQL data type (TINYBLOB, BLOB, MEDIUMBLOB, and LONGBLOB) for objects containing any kind of binary data, of arbitrary size. CLOB An SQL data type (TINYTEXT, TEXT, MEDIUMTEXT, or LONGTEXT) for objects containing any kind of character data, of ... These terms are commonly used in information about the MySQL database ...
https://dev.mysql.com/doc/refman/9.7/en/mathematical-functions.html
mysql> SELECT COT(12); -> -1.5726734063977 mysql> SELECT COT(0); -> out-of-range error CRC32(expr) Computes a cyclic redundancy check value and returns a 32-bit unsigned value. mysql> SELECT LOG2(65536); -> 16 mysql> SELECT LOG2(-100); -> NULL ...
https://dev.mysql.com/doc/refman/9.7/en/myisamchk-repair-options.html
--keys-used=val, -k val Command-Line Format --keys-used=val Type Numeric For myisamchk, the option value is a bit value that indicates which indexes to update. Each binary bit of the option value corresponds to a table index, where the first index ...--correct-checksum Command-Line Format --correct-checksum Correct the checksum information for the ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-install-debian.html
Oracle provides .deb installer files for NDB Cluster for 32-bit and 64-bit platforms. In the examples that follow, we assume you wish to install NDB 9.4.0 on a 64-bit Debian 9 system; in this case, the installer file is named ... The section ...