https://dev.mysql.com/datetime.html
The fractional part should always be separated from the rest of the time by a decimal point; no other fractional seconds delimiter is recognized. The only delimiter recognized between a date and time part and a fractional seconds part is the decimal ...This section describes their characteristics, how they are similar, and how they ...
https://dev.mysql.com/set.html
For a column specified as SET('a','b','c','d'), the members have the following decimal and binary values. A SET is a string object that can have zero or more values, each of which must be chosen from a list of permitted values specified when the ...
https://dev.mysql.com/subquery-materialization.html
For example, the optimizer might be able to use materialization if both expressions are integer or both are decimal, but cannot if one expression is integer and the other is decimal. The optimizer uses materialization to enable more efficient ...
https://dev.mysql.com/udf-arguments.html
For example: if (args->arg_type[0] != STRING_RESULT || args->arg_type[1] != INT_RESULT) { strcpy(message,"XXX() requires a string and an integer"); return 1; } Arguments of type DECIMAL_RESULT are passed as strings, so you should handle them the ...
https://dev.mysql.com/c-api-prepared-statement-type-conversions.html
MySQL returns DECIMAL values as the string representation of the original server-side value, which is why the corresponding C type is char[]. If you specify MYSQL_TYPE_NEWDECIMAL and bind a string buffer to the MYSQL_BIND structure, ... Prepared ...
https://dev.mysql.com/user-variables.html
User variables can be assigned a value from a limited set of data types: integer, decimal, floating-point, binary or nonbinary string, or NULL value. Assignment of decimal and real values does not preserve the precision or scale of the value. (This ... You can store a value in a user-defined variable in one statement and refer to it later in another ...
https://dev.mysql.com/numeric-functions.html
Table 12.10 Numeric Functions and Operators Name Description ABS() Return the absolute value ACOS() Return the arc cosine ASIN() Return the arc sine ATAN() Return the arc tangent ATAN2(), ATAN() Return the arc tangent of the two arguments CEIL() ...
https://dev.mysql.com/numeric-type-attributes.html
As of MySQL 8.0.17, the UNSIGNED attribute is deprecated for columns of type FLOAT, DOUBLE, and DECIMAL (and any synonyms) and will be removed in a future MySQL version. MySQL supports an extension for optionally specifying the display width of ...
https://dev.mysql.com/examples.html
Here are examples of how to solve some common problems with MySQL. Some of the examples use the table shop to hold the price of each article (item number) for certain traders (dealers). Supposing that each trader has a single fixed price per ...
https://dev.mysql.com/innodb-information-schema-system-tables.html
MB values are rounded to zero decimal spaces using the ROUND() function. You can extract metadata about schema objects managed by InnoDB using InnoDB INFORMATION_SCHEMA tables. Traditionally, you would get this type of information using the ...
