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