https://dev.mysql.com/string-functions.html
mysql> SELECT FIND_IN_SET('b','a,b,c,d'); -> 2 FORMAT(X,D[,locale]) Formats the number X to a format like '#,###,###.##', rounded to D decimal places, and returns the result as a string. If D is 0, the result has no decimal point or fractional part.
https://dev.mysql.com/arithmetic-functions.html
For example, the result of the expression 5.05 / 0.014 has a scale of six decimal places (360.714286). Hence, (14620 / 9432456) / (24250 / 9432456), resolves first to (0.0014) / (0.0026), with the final result having 8 decimal places (0.60288653).
https://dev.mysql.com/precision-math-expressions.html
In strict SQL mode, for INSERT into a column with an exact data type (DECIMAL or integer), a number is inserted with its exact value if it is within the column range. If any exact value contains a fractional part (a value following the decimal ...
https://dev.mysql.com/number-literals.html
Number literals include exact-value (integer and DECIMAL) literals and approximate-value (floating-point) literals. The DECIMAL data type is a fixed-point type and calculations are exact. In MySQL, the DECIMAL type has several synonyms: NUMERIC, ...
https://dev.mysql.com/problems-with-float.html
For DECIMAL columns, MySQL performs operations with a precision of 65 decimal digits, which should solve most common inaccuracy problems. If columns d1 and d2 had been defined as DECIMAL rather than DOUBLE, the result of the SELECT query would have ... Floating-point numbers sometimes cause confusion because they are approximate and not stored as exact ...
https://dev.mysql.com/c-api-data-structures.html
This includes columns with a type of MYSQL_TYPE_DECIMAL, MYSQL_TYPE_NEWDECIMAL, MYSQL_TYPE_TINY, MYSQL_TYPE_SHORT, MYSQL_TYPE_LONG, MYSQL_TYPE_FLOAT, MYSQL_TYPE_DOUBLE, MYSQL_TYPE_NULL, MYSQL_TYPE_LONGLONG, MYSQL_TYPE_INT24, and MYSQL_TYPE_YEAR.
https://dev.mysql.com/can-not-connect-to-server.html
The valid range is between 30 and 300 decimal, although you may wish to check with Microsoft for the latest permitted values. A MySQL client on Unix can connect to the mysqld server in two different ways: By using a Unix socket file to connect ...
https://dev.mysql.com/cast-functions.html
(In this context, DECIMAL column values are regarded as floating-point values.) mysql> SELECT CAST(1 AS UNSIGNED) - 2.0; -> -1.0 The SQL mode affects the result of conversion operations (see Section 5.1.11, “Server SQL Modes”). If the optional M ... Table 12.14 Cast Functions and Operators Name Description BINARY Cast a string to a binary string CAST() Cast a value as a certain type CONVERT() Cast a value as a certain type Cast functions and operators enable conversion of values from one data type to ...
https://dev.mysql.com/expressions.html
This section lists the grammar rules that expressions must follow in MySQL and provides additional information about the types of terms that may appear in expressions. Expression Syntax Expression Term Notes Temporal Intervals The following grammar ...
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 ...
