https://dev.mysql.com/partitioning-limitations-functions.html
This section discusses limitations in MySQL Partitioning relating specifically to functions used in partitioning expressions. Each of these functions returns an integer only if it is passed an argument of an exact numeric type, such as one of the ...
https://dev.mysql.com/create-event.html
The interval portion consists of two parts, a quantity and a unit of time, and follows the syntax rules described in Temporal Intervals, except that you cannot use any units keywords that involving microseconds when defining an event. CREATE ...
https://dev.mysql.com/glossary.html
latch A lightweight structure used by InnoDB to implement a lock for its own internal memory structures, typically held for a brief time measured in milliseconds or microseconds. These terms are commonly used in information about the MySQL database ...
https://dev.mysql.com/mysql-cluster-ndbinfo-tc-time-track-stats.html
The tc_time_track_stats table provides time-tracking information obtained from the DBTC block (TC) instances in the data nodes, through API nodes access NDB. Each TC instance tracks latencies for a set of activities it undertakes on behalf of API ...
https://dev.mysql.com/performance-schema-functions.html
As of MySQL 8.0.16, MySQL includes built-in SQL functions that format or retrieve Performance Schema data, and that may be used as equivalents for the corresponding sys schema stored functions. The built-in functions can be invoked in any schema ...
https://dev.mysql.com/mysql-cluster-params-other.html
The listings in this section provide information about parameters used in the [computer], [tcp], [shm], and [sci] sections of a config.ini file for configuring NDB Cluster. For detailed descriptions and additional information about individual ...
https://dev.mysql.com/performance-timers-table.html
For an explanation of how event timing occurs, see Section 26.4.1, “Performance Schema Event Timing”. For a cycle timer, the frequency is generally related to the CPU speed. For example, on a system with a 2.4GHz processor, the CYCLE may be ...
https://dev.mysql.com/date-and-time-type-overview.html
MySQL permits fractional seconds for TIME, DATETIME, and TIMESTAMP values, with up to microseconds (6 digits) precision. For additional information about properties and storage requirements of the temporal types, see Section 11.3, “Date and Time ...
https://dev.mysql.com/datetime.html
A DATETIME or TIMESTAMP value can include a trailing fractional seconds part in up to microseconds (6 digits) precision. This section describes their characteristics, how they are similar, and how they differ. MySQL recognizes DATE, DATETIME, and ...
https://dev.mysql.com/keywords.html
Certain keywords, such as SELECT, DELETE, or BIGINT, are reserved and require special treatment for use as identifiers such as table and column names. This may also be true for the names of built-in functions. Reserved words are permitted as ...
