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https://dev.mysql.com/doc/refman/9.7/en/type-conversion.html
The arguments are compared as decimal values if the other argument is a decimal or integer value, or as floating-point values if the other argument is a floating-point value. In all other cases, the arguments are compared as floating-point ... When ...
https://dev.mysql.com/doc/refman/9.7/en/gis-linestring-property-functions.html
You can extract particular points of a LineString, count the number of points that it contains, or obtain its length. These functions are available for obtaining linestring properties: ST_EndPoint(ls) Returns the Point that is the endpoint of the ...
https://dev.mysql.com/doc/refman/9.7/en/numeric-type-syntax.html
For floating-point and fixed-point data types, M is the total number of digits that can be stored. M is the total number of digits (the precision) and D is the number of digits after the decimal point (the scale). The decimal point and (for negative ... For integer data types, M indicates the minimum display ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-online-add-node-remarks.html
If the master fails: If the internal commit point has been reached: The creation of the node group is rolled forward. If the master fails: If the internal commit point has been reached: The creation of the node group is rolled forward. The creation ... This section provides general information about the behavior of and current limitations in adding NDB Cluster nodes ...
https://dev.mysql.com/doc/refman/9.7/en/gis-general-property-functions.html
mysql> SELECT ST_GeometryType(ST_GeomFromText('POINT(1 1)')); +------------------------------------------------+ | ST_GeometryType(ST_GeomFromText('POINT(1 1)')) | +------------------------------------------------+ | POINT | ... The functions listed ...
https://dev.mysql.com/doc/refman/9.7/en/mathematical-functions.html
For string or floating-point arguments, the return value has a floating-point type. For string or floating-point arguments, the return value has a floating-point type. mysql> SELECT RADIANS(90); -> 1.5707963267949 RAND([N]) Returns a random ...
https://dev.mysql.com/doc/refman/9.7/en/charset-unicode-sets.html
By default, the collation sorts characters having a code point listed in the DUCET table (Default Unicode Collation Element Table) according to the weight value assigned in the table. The collation sorts characters not having a code point listed in ... This section describes the collations available for Unicode character sets and their differentiating ...
https://dev.mysql.com/doc/refman/9.7/en/faqs-cjk.html
When you select literal (or _introducer hexadecimal-value), do you obtain literal as a result? For example, the Japanese Katakana character Pe (ペ') exists in all CJK character sets, and has the code point value (hexadecimal coding) 0x30da. ucs2 ...
https://dev.mysql.com/doc/refman/9.7/en/gis-mysql-specific-functions.html
For example, you can insert the geometry return value from Point() directly into a POINT column: INSERT INTO t1 (pt_col) VALUES(Point(1,2)); GeomCollection(g [, g] ...) Constructs a GeomCollection value from the geometry arguments. LineString(pt [, ... MySQL provides a set of useful nonstandard functions for creating geometry ...
https://dev.mysql.com/doc/refman/9.7/en/server-system-variables.html
For a description of the Debug Sync facility and how to use synchronization points, see MySQL Server Doxygen Documentation. When Block Nested-Loop is used, a larger join buffer can be beneficial up to the point where all required columns from all ...