https://dev.mysql.com/two-digit-years.html
Date values with two-digit years are ambiguous because the century is unknown. Such values must be interpreted into four-digit form because MySQL stores years internally using four digits. For DATETIME, DATE, and TIMESTAMP types, MySQL interprets ...
https://dev.mysql.com/year.html
The YEAR type is a 1-byte type used to represent year values. It can be declared as YEAR or YEAR(4) and has a display width of four characters. Note MySQL 8.0 does not support the YEAR(2) data type permitted in older versions of MySQL. For ...
https://dev.mysql.com/group-by-modifiers.html
The GROUP BY clause permits a WITH ROLLUP modifier that causes summary output to include extra rows that represent higher-level (that is, super-aggregate) summary operations. ROLLUP thus enables you to answer questions at multiple levels of ...
https://dev.mysql.com/date-and-time-functions.html
This section describes the functions that can be used to manipulate temporal values. See Section 11.3, “Date and Time Types”, for a description of the range of values each date and time type has and the valid formats in which values may be ...
https://dev.mysql.com/partitioning-management-range-list.html
Adding and dropping of range and list partitions are handled in a similar fashion, so we discuss the management of both sorts of partitioning in this section. For information about working with tables that are partitioned by hash or key, see ...
https://dev.mysql.com/date-and-time-literals.html
Date and time values can be represented in several formats, such as quoted strings or as numbers, depending on the exact type of the value and other factors. For example, in contexts where MySQL expects a date, it interprets any of '2015-07-21', ...
https://dev.mysql.com/date-and-time-type-overview.html
For additional information about properties and storage requirements of the temporal types, see Section 11.3, “Date and Time Types”, and Section 11.8, “Data Type Storage Requirements”. For descriptions of functions that operate on temporal ...
https://dev.mysql.com/date-and-time-types.html
The date and time types for representing temporal values are DATE, TIME, DATETIME, TIMESTAMP, and YEAR. Each temporal type has a range of valid values, as well as a “zero” value that may be used when you specify an invalid value that MySQL ...
https://dev.mysql.com/date-calculations.html
MySQL provides several functions that you can use to perform calculations on dates, for example, to calculate ages or extract parts of dates. To determine how many years old each of your pets is, use the TIMESTAMPDIFF() function. Its arguments are ...
https://dev.mysql.com/func-op-summary-ref.html
GTID_SUBTRACT() Return all GTIDs in set that are not in subset. JSON_CONTAINS() Whether JSON document contains specific object at path JSON_CONTAINS_PATH() Whether JSON document contains any data at path JSON_DEPTH() Maximum depth of JSON document ...
