This section discusses the characteristics of theDECIMALdata type (and its synonyms), with particular regard to the following topics: Maximum number of digits Storage format Storage requirements The nonstandard MySQL extension to the upper range ofDECIMALcolumns ...
This section discusses the characteristics of theDECIMALdata type (and its synonyms), with particular regard to the following topics: Maximum number of digits Storage format Storage requirements The nonstandard MySQL extension to the upper range ofDECIMALcolumns ...
DECIMAL Data Type In MySQL,DECIMAL(M,D)andNUMERIC(M,D)are the same, and both have a precision of exactlyMdigits. Leftover Digits Number of Bytes001–213–425–637–94 For example, aDECIMAL(18,9)column has nine digits on either side of the decimal point, so the integer part and the ...
UN:Unsigned data type 无符号 整数(非负数) ZF:Fill up values for that column with 0's if it is numeric 如果是数值列,则用0填充该列的值。(字段内容是1 int(4),则内容显示为0001) AI:Auto Increment 自增 G:Generated Column 生成列 在mysql查询语句中加\g、\G的意思: \g 的作用是分号和在sql...
Database changed mysql> create table person (name varchar(20)); Query OK, 0 rows affected (0.02 sec) mysql> desc person; +---+---+---+---+---+---+ | Field | Type | Null | Key | Default | Extra | +---+---+---+---+---+---+ | name...
Category:MySQL ServerSeverity:S1 (Critical) Version:5.0.19-BK, 5.0.15-ntOS:Linux (Linux, WinXP SP2) Assigned to:Sergei GlukhovCPU Architecture:Any [4 Jan 2006 4:05] Stan Segers Description:The DECIMAL data type is processed incorrectly when; A. Presicion of the DECIMAL data type is too sm...
要从MySQL数据库中提取类型为decimal的数据，首先需要查询表的结构，识别出所有使用decimal数据类型的字段。这可以通过执行以下SQL语句来实现：SELECT column_name, data_type FROM information_schema.columns WHERE table_schema = 'your_database_name' AND data_type = 'decimal';在确认了具体的字段名...
MySQL DECIMAL数据类型 MySQL是一款广泛应用于各种应用场景下的关系型数据库管理系统,对于存储数字数据类型,MySQL提供了多种数据类型供程序员选择和使用。其中,DECIMAL类型是一种十进制类型,用于存储高精度数字。在本文中,我们将深入介绍MySQL中DECIMAL数据类型的定义、使用方式以及相关的一些需要注意的问题。
MySQL data types: CHAR, VARCHAR, INT, TEXT #Part-1 MySQL date and time DataTypes Overview: DATE, TIME, DATETIME, TIMESTAMP, YEAR & Zero Values #Part2.1 Automatically insert Current Date and Time in MySQL table #Part – 2.2 MySQL: Working with date time arithmetic #Part 2.3.1 ...
mysql> CREATE TABLE `tc_integer` ( `f_id` bigint(20) PRIMARY KEY AUTO_INCREMENT, `f_type` tinyint, `f_flag` tinyint(1), `f_num` smallint(5) unsigned ZEROFILL ) ENGINE=InnoDB DEFAULT CHARSET=utf8; mysql> desc tc_integer; ...