Numeric Data Types MySQL supports all standard SQL numeric【nuˈmɛrɪk 数(字,值)(的);分数 ;不可通约数;】 data types. These types include the exact【ɪɡˈzækt 准确的;精确的;严格的;精密的;严谨的;严密的;一丝不苟的;】 numeric data types (INTEGER, SMALLINT, DECIMAL, and ...
虽然是Numeric,但INSERT/UPDATE时可以传入字符串,MySQL会自动转成对应Numeric类型。 类型 BIT(M) 0<=M<=64 BOOL,BOOLEAN 0 => FALSE 1 => TRUE TINYINT(M) [UNSIGNED] [ZEROFILL] 1B SMALLINT(M) [UNSIGNED] [ZEROFILL] 2B MEDIUMINT(M) [UNSIGNED] [ZEROFILL] 3B INT,INTEGER(M) [UNSIGNED] [ZER...
11.1.4 Floating-Point Types (Approximate Value) - FLOAT, DOUBLE 11.1.5 Bit-Value Type - BIT 11.1.6 Numeric Type Attributes 11.1.7 Out-of-Range and Overflow Handling MySQL supports all standard SQL numeric data types. These types include the exact numeric data types (INTEGER,SMALLINT,DECIMAL...
13.1.6 Numeric Type Attributes 13.1.7 Out-of-Range and Overflow HandlingMySQL supports all standard SQL numeric data types. These types include the exact numeric data types (INTEGER, SMALLINT, DECIMAL, and NUMERIC), as well as the approximate numeric data types (FLOAT, REAL, and DOUBLE PRECIS...
We can keep numeric values of different tiers and codecs in MySQL. Specific and approximate numeric values may be saved by the use of MySQL numeric data types. Besides that, MySQL also affords the functionality to save the bit values the usage of the BIT statistics kind. ...
MySQL DataType--定点数(Fixed-Point Types)学习 DECIMAL和NUMERIC MySQL支持两种定点数类型:DECIMAL和NUMERIC,而NUMERIC实现为DECIMAL,因此MySQL中DECIMAL和NUMERIC等价相同。 如使用下面建表语句: CREATETABLEtb003( idINTPRIMARYKEY, c1DECIMAL(20,5), c2 NUMERIC(18,5)...
The certification book explains numeric data types in regards to display width: "The display width indicating the maximum number of characters to use when presenting column values in a query output." (p.61) Then, it goes on to say "When you SELECT the column in a query, mysql displays th...
这些类型包括严格数值数据类型(INTEGER、SMALLINT、DECIMAL 和 NUMERIC),以及近似数值数据类型(FLOAT、REAL 和 DOUBLE PRECISION)。 关键字INT是INTEGER的同义词,关键字DEC是DECIMAL的同义词。 BIT数据类型保存位字段值,并且支持 MyISAM、MEMORY、InnoDB 和 BDB表。
Numeric Type (数字类型) 1、TINYINT、SMALLINT、MEDIUMINT、INT、BIGINT主要根据存储字节长度不一样划分: TINYINT:1字节 SMALLINT:2字节 MEDIUMINT:3字节 INT:4字节 BIGINT:8字节 如果不需要符号数时,建议加上unsigned,会扩充存储长度一倍,提高存储性能。如TINYINT UNSIGNED(0~255)/TINYINT(-128~127)。
Chapter 11 Data Types Difference between numeric, float and decimal in SQL Server Floating Point Numbers What does INT(5) in mysql mean? MySQL: Why specify display width without using zerofill PHP & mySQL: Year 2038 Bug: What is it? How to solve it? 本文参与 腾讯云自媒体同步曝光计划,分享...