下表显示了 MySQL 中支持的所有二进制大对象数据类型: 空间数据类型 它是一种特殊的数据类型,用于保存各种几何和地理值。它对应于 OpenGIS 类。下表显示了 MySQL 中支持的所有空间类型: JSON 数据类型 MySQL 从 v5.7.8 版本开始提供对原生 JSON 数据类型的支持。...
In MySQL there are three main data types: string, numeric, and date and time. String Data Types Data typeDescription CHAR(size)A FIXED length string (can contain letters, numbers, and special characters). Thesizeparameter specifies the column length in characters - can be from 0 to 255. De...
MySQL supports both exact and approximate numeric data types. The numeric category is further subdivided into more specific groups. The table below shows different numeric data types, their signed and unsigned ranges, and a short description. Data TypeRangeDescription TINYINT(m)(1 byte) Signed: -...
In this tutorial, we will learn about different data types that are supported by MySQL. Data types are specified against each column when a table is created and also while updating/altering the table to add a new column to the existing table We will learn about the data types in three dif...
13.9 Using Data Types from Other Database Engines MySQL supportsSQLdata types in several categories: numeric types, date and time types, string (character and byte) types, spatial types, and theJSONdata type. This chapter provides an overview and more detailed description of the properties of th...
13.9 Using Data Types from Other Database Engines MySQL supportsSQLdata types in several categories: numeric types, date and time types, string (character and byte) types, spatial types, and theJSONdata type. This chapter provides an overview and more detailed description of the properties of th...
2.4 Date and Time Type Storage Requirements For TIME, DATETIME, and TIMESTAMP columns, the storage required for tables created before MySQL 5.6.4 differs from tables created from 5.6.4 on. This is due to a change in 5.6.4 that permits these types to have a fractional part, which requires...
The following is a table of integer types in MySQL:TINYINT,MEDIUMINTandBIGINTare MySQL extensions to the SQL standard. Table 1: Signed integer types The integer types differ in their storage. We can choose values that fit our requirements. ...
Data Types in MySQL MySQLis very rich when it comes to data types. There are a wide variety of options available to efficiently store and retrieve data. The following data types are most commonly available. INT– For storing integer values. ...
In some cases, MySQL may change a string column to a type different from that given in a CREATE TABLE or ALTER TABLE statement. For definitions of character string columns (CHAR, VARCHAR, and the TEXT types), MySQL interprets【ɪnˈtɜːrprəts诠释;说明;把…理解为;领会;口译;】...