https://dev.mysql.com/spatial-convenience-functions.html
The functions in this section provide convenience operations on geometry values. Unless otherwise specified, functions in this section handle their arguments as follows: If any argument is NULL, the return value is NULL. If any geometry argument is ...
https://dev.mysql.com/replication-features-differing-tables.html
Between any of the decimal types DECIMAL, FLOAT, DOUBLE, and NUMERIC. FLOAT to DOUBLE is a non-lossy conversion; DOUBLE to FLOAT can only be handled lossily. Source and target tables for replication do not have to be identical. A table on the ...
https://dev.mysql.com/session-state-tracking.html
A client can enable these trackers to receive notification of changes to its session state. One use for the tracker mechanism is to provide a means for MySQL connectors and client applications to determine whether any session context is available to ...
https://dev.mysql.com/storage-requirements.html
InnoDB Table Storage Requirements NDB Table Storage Requirements Numeric Type Storage Requirements Date and Time Type Storage Requirements String Type Storage Requirements Spatial Type Storage Requirements JSON Storage Requirements The storage ...
https://dev.mysql.com/replication-rbr-safe-unsafe.html
In addition, statements using results from floating-point math functions—which are hardware-dependent—are always considered unsafe (see Section 17.4.1.12, “Replication and Floating-Point Values”). The “safeness” of a statement in MySQL ...
https://dev.mysql.com/control-flow-functions.html
If expr2 or expr3 produce a floating-point value, the result is a floating-point value. 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 ...
https://dev.mysql.com/insert.html
For example, inserting the string '1999.0e-2' into an INT, FLOAT, DECIMAL(10,6), or YEAR column inserts the value 1999, 19.9921, 19.992100, or 1999, respectively. For the FLOAT and DECIMAL columns, the string-to-number conversion considers the ...
https://dev.mysql.com/data-type-defaults.html
Implicit defaults are defined as follows: For numeric types, the default is 0, with the exception that for integer or floating-point types declared with the AUTO_INCREMENT attribute, the default is the next value in the sequence. Data type ...
https://dev.mysql.com/data-types.html
For floating-point and fixed-point types, M is the total number of digits that can be stored (the precision). D applies to floating-point and fixed-point types and indicates the number of digits following the decimal point (the scale). MySQL ...
https://dev.mysql.com/precision-math-expressions.html
(If strict SQL mode is not enabled, truncation for INSERT is permissible.) Handling of a numeric expression depends on what kind of values the expression contains: If any approximate values are present, the expression is approximate and is evaluated ... With precision math, exact-value numbers are used as given whenever ...
