name:'with_fill',orgName:'with_fill',charsetNr:63,length:5,type:3,flags:20579,decimals:0,default:undefined,zeroFill:true,protocol41:true},FieldPacket{catalog:'def',db:'data_type',table:'test_zero_fill',orgTable:'test_zero_fill',name:'without_fill',orgName:'without_fill',...
===有符号tinyint===#创建数据库db4create database db4 charset utf8;#切换到当前db4数据库mysql>use db4;#创建t1 规定x字段为tinyint数据类型(默认是有符号的)mysql>create table t1(x tinyint);#验证,插入-1这个数mysql> insert into t1 values(-1);#查询 表记录,查询成功(证明默认是有符号类型)my...
MySQL supports a number ofSQL standard data typesin various categories. MySQL hasNumericTypes, theDATETIME,DATE, andTIMESTAMPTypes andStringTypes. Data types are discussed on this page are based on MySQL community server 5.6 MySQL Numeric Types MySQL supports all standard SQL numeric data types whi...
http://www.runoob.com/mysql/mysql-data-types.html http://dev.mysql.com/doc/refman/5.7/en/data-type-overview.html mysql常用数据类型概览 View Code 二 数值类型 1、整数类型 整数类型:TINYINT SMALLINT MEDIUMINT INT BIGINT 作用:存储年龄,等级,id,各种号码等 ...
MySQL支持多种数据类型,主要有数值类型、日期/时间类型和字符串类型。 1.数值数据类型 代码语言:javascript 复制 包括整数类型TINYINT、SMALLINT、MEDIUMINT、INT、BIGINT、浮点小数数据类型FLOAT和DOUBLE、定点小树类型DECIMAL。 2.日期/时间类型 代码语言:javascript ...
A data type is a set of representable values. Each value belongs to one data type. Items that can be referenced by a name, such as SQL parameters, columns, fields, attributes, and variables, also have declared types. MySQL supports these groups of data types: ...
MySQL Data Types: TINYINT, SMALLINT, MEDIUMINT, INT or INTEGER, BIGINT, FLOAT, DOUBLE, DOUBLE PRECISION, REAL, DECIMAL, NUMERIC, DATE
The following table compares the date and time types of MySQL to Oracle:MySQL Size Oracle DATE 3 Bytes DATE DATETIME 8 Bytes DATE TIMESTAMP 4 Bytes NUMBER TIME 3 Bytes DATE YEAR 1 Byte NUMBER String TypesIn the case of MySQL data types that map to character data types in Oracle, ...
Discover storage size, description, permissible values and examples for all numeric, string, date and time MySQL data types with advanced calculators.
MySQL Data Types (Version 8.0) Each column in a database table is required to have a name and a data type. An SQL developer must decide what type of data that will be stored inside each column when creating a table. The data type is a guideline for SQL to understand what type of ...