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https://dev.mysql.com/doc/refman/5.7/en/replication-options-binary-log.html
Prior to MySQL 5.7.2, this option caused any statements containing fully qualified table names not to be logged if there was no default database specified (that is, when SELECT DATABASE() returned NULL). Otherwise, if the table has a unique key all ... Startup Options Used with Binary Logging System Variables Used with Binary Logging You can use the mysqld options and system variables that are described in this section to affect the operation of the binary log as well as to control which statements are written to the binary ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-command-options.html
It is always enabled and attempting to disable it (--skip-secure-auth, --secure-auth=0) produces an error. <field name="column_name">NULL</field> The output when --xml is used with mysql matches that of mysqldump --xml. mysql supports the following ...
https://dev.mysql.com/doc/refman/5.7/en/myisampack.html
When the table is used later, the server reads into memory the information needed to decompress columns. This results in much better performance when accessing individual rows, because you only have to uncompress exactly one row. MySQL uses mmap() ...
https://dev.mysql.com/doc/refman/5.7/en/json-search-functions.html
Returns NULL if any argument is NULL, or if the path argument does not identify a section of the target document. Returns NULL if any argument is NULL or no paths locate a value in the document. row *************************** id: 1 select_type: ...
https://dev.mysql.com/doc/refman/5.7/en/partitioning-range.html
A table that is partitioned by range is partitioned in such a way that each partition contains rows for which the partitioning expression value lies within a given range. Ranges should be contiguous but not overlapping, and are defined using the ...
https://dev.mysql.com/doc/refman/5.7/en/pluggable-authentication-system-variables.html
authentication_ldap_sasl_bind_base_dn Command-Line Format --authentication-ldap-sasl-bind-base-dn=value System Variable authentication_ldap_sasl_bind_base_dn Scope Global Dynamic Yes Type String Default Value NULL For SASL LDAP authentication, the ...Communication between the authentication plugin and the LDAP server occurs according to this authentication method to ensure password ...
https://dev.mysql.com/doc/refman/5.7/en/datetime.html
This section describes their characteristics, how they are similar, and how they differ. MySQL recognizes DATE, DATETIME, and TIMESTAMP values in several formats, described in Section 9.1.3, “Date and Time Literals”. For the DATE and DATETIME ...
https://dev.mysql.com/doc/refman/5.7/en/connection-control-plugin-variables.html
This section describes the system and status variables that the CONNECTION_CONTROL plugin provides to enable its operation to be configured and monitored. If an account has reached the point where connection responses are delayed, a delay also ...
https://dev.mysql.com/doc/refman/5.7/en/glossary.html
It provides useful information for the query optimizer, because the column is known to be not null and with unique values. A column can be subject to a unique constraint, a NOT NULL constraint, or both. See Also cardinality, foreign key, index, NOT ... These terms are commonly used in information about the MySQL database ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-files-table.html
The value is NULL for all data files except for predefined system tablespace data files. A NULL value for a predefined system tablespace data file indicates that a file size limit was not defined explicitly. Where no value is provided by the ... The ...