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https://dev.mysql.com/c-api-prepared-statement-type-codes.html
The buffer_type member of MYSQL_BIND structures indicates the data type of the C language variable bound to a statement parameter or result set column. For input, buffer_type indicates the type of the variable containing the value to be sent to the ...
https://dev.mysql.com/mathematical-functions.html
mysql> SELECT ABS(2); -> 2 mysql> SELECT ABS(-32); -> 32 This function is safe to use with BIGINT values. mysql> SELECT MOD(234, 10); -> 4 mysql> SELECT 253 % 7; -> 1 mysql> SELECT MOD(29,9); -> 2 mysql> SELECT 29 MOD 9; -> 2 This function is safe ...ACOS(X) Returns the arc cosine of X, that is, the value whose cosine is ...
https://dev.mysql.com/innodb-fulltext-index.html
If you want to create your own FTS_DOC_ID column, the column must be defined as BIGINT UNSIGNED NOT NULL and named FTS_DOC_ID (all upper case), as in the following example: Note The FTS_DOC_ID column does not need to be defined as an AUTO_INCREMENT ... FULLTEXT indexes are created on text-based columns (CHAR, VARCHAR, or TEXT columns) to help speed up queries and DML operations on data contained within those columns, omitting any words that are defined as ...
https://dev.mysql.com/example-auto-increment.html
See Section 11.2.1, “Integer Types (Exact Value) - INTEGER, INT, SMALLINT, TINYINT, MEDIUMINT, BIGINT” for the ranges of all the integer types. You can also explicitly assign 0 to the column to generate sequence numbers, unless the ...
https://dev.mysql.com/myisampack.html
For example, a BIGINT column (eight bytes) can be stored as a TINYINT column (one byte) if all its values are in the range from -128 to 127. When the table is used later, the server reads into memory the information needed to decompress columns.
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/innodb-memcached-internals.html
It must be mapped to a BIGINT of at least 8 bytes. The InnoDB memcached engine accesses InnoDB through InnoDB APIs, most of which are directly adopted from embedded InnoDB. InnoDB API functions are passed to the InnoDB memcached engine as callback ...
https://dev.mysql.com/charset-introducer.html
A character string literal, hexadecimal literal, or bit-value literal may have an optional character set introducer and COLLATE clause, to designate it as a string that uses a particular character set and collation: [_charset_name] literal [COLLATE ...
https://dev.mysql.com/innodb-memcached-setup.html
mysql> CREATE TABLE city ( city_id VARCHAR(32), name VARCHAR(1024), state VARCHAR(1024), country VARCHAR(1024), flags INT, cas BIGINT UNSIGNED, expiry INT, primary key(city_id) ) ENGINE=InnoDB; Add an entry to the innodb_memcache.containers table so ... This section describes how to set up the daemon_memcached plugin on a MySQL ...
https://dev.mysql.com/choosing-types.html
For high precision, you can always convert to a fixed-point type stored in a BIGINT. 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 range from 1 to 99999, ...
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