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2024年4月1日发(作者:)

cassandra 基本数据类型

英文回答:

Cassandra is a highly scalable and distributed NoSQL

database that is designed to handle large amounts of data

across multiple commodity servers. It offers a flexible and

schema-free data model, allowing users to store and

retrieve data in a variety of formats. In Cassandra, there

are several basic data types that can be used to define the

structure of the data being stored.

1. Text: This data type is used to store variable-

length character strings. It is commonly used for storing

textual data such as names, descriptions, or any other type

of free-form text.

Example: "Hello, World!"

2. Integer: This data type is used to store whole

numbers. It can represent both positive and negative values

within a specified range. Integers are commonly used for

storing numerical data such as counts, quantities, or

identifiers.

Example: 42。

3. Float: This data type is used to store floating-

point numbers. It can represent both whole numbers and

fractions. Floats are commonly used for storing numerical

data that requires decimal precision, such as measurements

or calculations.

Example: 3.14。

4. Boolean: This data type is used to store either true

or false values. Booleans are commonly used for storing

binary data or representing logical conditions.

Example: true.

5. Timestamp: This data type is used to store date and

time information. It represents a point in time and can be

本文标签: 数据类型基本