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Posts about Cassandra

Introduction to Cassandra

May 17, 2021 10:00 0 Comment Cassandra

NoSQL database, NoSQL database, NoSQL database and relationship database, What is Apache Cassandra?, Cassandra features, The history of Cassandra, Apache Cassandra is a highly scalable, high-performance distributed database that processes large amounts of data on a large number of commercial, ser

Cassandra architecture

May 17, 2021 10:00 0 Comment Cassandra

Data replication in Cassandra, Data replication in Cassandra, Cassandra's components, Cassandra query language, Cassandra is designed to handle big data workloads across multiple nodes without any single point of failure., /b20>, Cassandra has a equivalent distr

Cassandra data model

May 17, 2021 10:00 0 Comment Cassandra

Cassandra and RDBMS data models, Cassandra and RDBMS data models, Cassandra's data model is very different from the one we typically see in RDBMS., /b10>, This chapter provides an overview of how Cassandra stores dat

Cassandra installation

May 17, 2021 10:00 0 Comment Cassandra

Pre-installed settings, Pre-installed settings, Install Java, Download Cassandra, Configure Cassandra, Start Cassandra, Programming environment, Eclipse environment, Maven relies on it, Cassandra can be accessed using cqlsh as well as drivers in different languages., /b10>, This chapter describes how to set up cqlsh and java environme

Cassandra refers to the API

May 17, 2021 11:00 0 Comment Cassandra

Cluster, Cluster, Cluster.Builder, Session, This chapter covers all the important classes in Cassandra., Cluster, This class is the driver's primary entry point., It belongs to the com.datastax.

Cassandra Cqlsh

May 17, 2021 11:00 0 Comment Cassandra

Start cqlsh, Start cqlsh, Cqlsh command, Record the Shell command for, CQL data definition commands, CQL data operation instructions, CQL words, This chapter describes the Cassandra query language shell and explains how to use its commands., By default, Cassandra provides a prompt for Cassandra

Cassandra Shell command

May 17, 2021 11:00 0 Comment Cassandra

Help, Help, Capture, Consistency, Copy, Describe, Describe tables, Describe Types, Expand, Exit, Show, Source, In addition to the CQL command, Cassandra provides the recorded shell command., The shell command for Cassandra's record is given below., Help, The HE

Cassandra creates a key space

May 17, 2021 11:00 0 Comment Cassandra

Use Cqlsh to create a Keyspace, Use Cqlsh to create a Keyspace, Copy, Durable_writes, Use Keyspace, Create a Keyspace using the Java API, Use Cqlsh to create a, Keyspace, The keyspace in Cassandra is a namespace that defines data replication on a node. E, ach node in the cluster contains

Cassandra modifies the key space

May 17, 2021 11:00 0 Comment Cassandra

Use Cqlsh to modify Keyspace, Use Cqlsh to modify Keyspace, Durable_writes, Use the Java API to modify the key space, Use Cqlsh to modify Keyspace, ALTER KEYSPACE can be used to change properties, such as the number of repricas and durable_writes KeySpace., The syntax

Cassandra deletes the key space

May 17, 2021 11:00 0 Comment Cassandra

Use Cqlsh to remove the key space, Use Cqlsh to remove the key space, Use the Java API to delete the key space, Use Cqlsh to remove the key space, You can use the command DROP KEYSPACE to remove KeySpace., Here's the syntax for deleting KeySpace., Statement, DRO

Cassandra creates tables

May 17, 2021 11:00 0 Comment Cassandra

Create a table using Cqlsh, Create a table using Cqlsh, Define the column, The primary key, Create a table using the Java API, Create a table using Cqlsh, You can, use the command CREATE TABLE, to, create a table. T, he syntax for creating a table is given below., Statement, C

Cassandra modifies the table

May 17, 2021 11:00 0 Comment Cassandra

Change the use of the Cqlsh table, Change the use of the Cqlsh table, Use the Java API to change the table, Delete the column, Change the use of the Cqlsh table, You can use the command ALTER TABLE to change the table., The syntax for modifying the table is given below., Synta

Cassandra deletes the table

May 17, 2021 11:00 0 Comment Cassandra

Use Cqlsh to delete the table, Use Cqlsh to delete the table, Use the Java API to delete the table, Use Cqlsh to delete the table, You can use the command Drop Table to delete the table., The syntax is as follows:, Grammar, DROP TABLE <tablename>, Ex

Cassandra truncated the table

May 17, 2021 11:00 0 Comment Cassandra

Truncation tables using Cqlsh, Truncation tables using Cqlsh, Use the Java API to truncated the table, Truncation tables using Cqlsh, You can use the TRUNCATE command to truncate the table. W, hen you truncated a table, all rows of the table are permane

Cassandra creates an index

May 17, 2021 12:00 0 Comment Cassandra

Use Cqlsh to create an index, Use Cqlsh to create an index, 使用Java API创建索引, Use Cqlsh to create an index, You can, use the command CREATE INDEX, to create an index in Cassandra., The syntax is as follows:, CREATE INDEX <identi