INT INT NOT NULL INTERVAL DAY TO SECOND(3) ROW, myOtherField TIMESTAMP(3)> 下面是所有预定义数据类型的列表。 Table API中的数据类型 Java/Scala 在基于JVM的API中,用户在Table API中使用org.apache.flink.table.types.DataType的实例,或者在定义连接器、目录或用户定义函数时使用。 DataType实例有两个职...
In Micrsoft SQL Server, integer storage data types are Int, Smallint and Tinyint. The Int data type stores the scope of the data larger than the Smallint data type, while the data storage range of the Smallint type is larger than the storage range of the data type of the Tinyint ...
4.3 文本字符串类型 (Character String Types) 4.4 二进制字符串类型 (Binary String Types) 举例 案例1 1. create table orders 2. id int primary key auto_increment 3. item_id int 4. amount int 5. unit_price decimal(12, 4) 6. price decimal(12, 4) 7. ts timestamp default current_timest...
A data type is a set of representable values. Every representable value belongs to at least one data type and some belong to several data types. SQL supports three sorts of data types: predefined data types, constructed types, and user-defined types. Predefined data types are sometimes called ...
SMALLINT2 bytesA short integer between – 32,768 and 32,767. (See Notes) INTEGER4 bytesA long integer between – 2,147,483,648 and 2,147,483,647. (See Notes) DECIMAL17 bytesAn exact numeric data type that holds values from 1028 - 1 through - 1028 - 1. You can define both preci...
JDBC 定义了一个从 JDBC 数据库类型到 Java 类型的标准映射。例如,JDBC 的INTEGER类型通常映射为 Java 的int类型。这可支持简单的接口,将 JDBC 值读写为简单的 Java 类型。 Java 类型不必与 JDBC 类型完全形同;它们只须能够用足够的类型信息来代表 JDBC 类型,从而能正确地存储和取出参数和从 SQL 语句恢复结果就...
Numeric Data Types Data typeDescription BIT(size)A bit-value type. The number of bits per value is specified insize. Thesizeparameter can hold a value from 1 to 64. The default value forsizeis 1. TINYINT(size)A very small integer. Signed range is from -128 to 127. Unsigned range is...
5)、BIGINT 4、Approximate Numerics 1)、FLOAT 2)、DOUBLE 5、Date and Time 1)、DATE 2)、TIME 3)、TIMESTAMP 4)、TIMESTAMP WITH TIME ZONE 5)、TIMESTAMP_LTZ 6)、INTERVAL YEAR TO MONTH 7)、INTERVAL DAY TO SECOND 6、Constructured Data Types ...
These are different data types, INT is 4-byte number, TINYINT is 1-byte number. More information here - INTEGER, INT, SMALLINT, TINYINT, MEDIUMINT, BIGINT. The syntax of TINYINT data type is TINYINT(M), where M indicates the maximum display width (used only if your MySQL clien...
smallint -32,768 至 32,767 -2^15 to 2^15-1 2 個位元組 tinyint 0至 255 2^0-1 to 2^8-1 1 個位元組 備註 int 資料類型是 SQL Server 中的主要整數資料類型。 bigint 資料類型通常是在整數值可能超過 int 資料類型所支援的範圍時使用。 bigint 位於資料類型優先順序圖...