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https://dev.mysql.com/doc/refman/8.0/en/spatial-geohash-functions.html
mysql> SELECT ST_GeoHash(180,0,10), ST_GeoHash(-180,-90,15); +----------------------+-------------------------+ | ST_GeoHash(180,0,10) | ST_GeoHash(-180,-90,15) | +----------------------+-------------------------+ | xbpbpbpbpb | 000000000000000 | ...
https://dev.mysql.com/doc/refman/8.0/en/spatial-relation-functions-object-shapes.html
The result is a double-precision number measured in the length unit of the spatial reference system (SRS) of the geometry arguments, or in the length unit of the unit argument if that argument is given. The result is a double-precision number ...
https://dev.mysql.com/doc/refman/8.0/en/sql-mode.html
With ANSI_QUOTES enabled, you cannot use double quotation marks to quote literal strings because they are interpreted as identifiers. The MySQL server can operate in different SQL modes, and can apply these modes differently for different clients, ...
https://dev.mysql.com/doc/refman/8.0/en/storage-requirements.html
If the same column is instead declared to use the ucs2 double-byte character set, the storage requirement is 10 bytes: The length of 'abcd' is eight bytes and the column requires two bytes to store lengths because the maximum length is greater than ... 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 requirements for table data on disk depend on several ...
https://dev.mysql.com/doc/refman/8.0/en/account-names.html
Quote user names and host names as identifiers or as strings, using either backticks (`), single quotation marks ('), or double quotation marks ("). MySQL account names consist of a user name and a host name, which enables creation of distinct ...
https://dev.mysql.com/doc/refman/8.0/en/alter-instance.html
If the CRL file is large, the server allocates a large chunk of memory (ten times the file size), which is doubled while the new instance is being loaded and the old one has not yet been released. ALTER INSTANCE instance_action instance_action: { | ...
https://dev.mysql.com/doc/refman/8.0/en/audit-log-file-formats.html
Example: "query": "DELETE FROM t1" query_time The query execution time in microseconds (if the longlong data type is selected) or seconds (if the double data type is selected). The MySQL server calls the audit log plugin to write an audit record to ...
https://dev.mysql.com/doc/refman/8.0/en/bug-reports.html
If you work with Windows, you can usually get the name and version number by double-clicking your My Computer icon and pulling down the “Help/About Windows” menu. Before posting a bug report about a problem, please try to verify that it is a ...
https://dev.mysql.com/doc/refman/8.0/en/choosing-types.html
If accuracy is not too important or if speed is the highest priority, the DOUBLE type may be good enough. For optimum storage, you should try to use the most precise type in all cases. For example, if an integer column is used for values in the ...
https://dev.mysql.com/doc/refman/8.0/en/comments.html
In MySQL, the -- (double-dash) comment style requires the second dash to be followed by at least one whitespace or control character, such as a space or tab. MySQL Server supports three comment styles: From a # character to the end of the line.