Posts about Cassandra
Cassandra CQL user-defined data types
May 17, 2021 12:00 0 Comment Cassandra
Create a user-defined data type, Create a user-defined data type, Change the user-defined data type, Delete user-defined data types, CQL provides the ibility to create and use user-defined data types. Y, ou can create a data type to handle multiple fields., This chapter describes ho
Cassandra CQL collection
May 17, 2021 12:00 0 Comment Cassandra
List, List, Set, Map, CQL provides the ibility to use TheCollection data type. U, sing these collection types, you can store multiple values in a single variable., This cha
Cassandra CQL data type
May 17, 2021 12:00 0 Comment Cassandra
The collection type, The collection type, User-defined data types:, CQL provides a rich set of built-in data types, including collection types. I, n addition to these data types, users can create their own custom data
Cassandra deletes the data
May 17, 2021 12:00 0 Comment Cassandra
Use Cqlsh to delete data, Use Cqlsh to delete data, Delete the entire line, Use the Java API to delete data, Use Cqlsh to delete data, You can use the command DELETE to remove data from the table., The syntax is as follows:, DELETE FROM <identifier> WHERE <co
Cassandra reads the data
May 17, 2021 12:00 0 Comment Cassandra
Use the selection clause to read the data, Use the selection clause to read the data, Read the required columns, Where clause, Use the Java API to read data, Use the selection clause to read the data, Select clauses are used to read data from tables in Cassandra. W, ith this clause, you can read the entire
Cassandra updates the data
May 17, 2021 12:00 0 Comment Cassandra
Use Cqlsh to update the data, Use Cqlsh to update the data, Update the data using the Java API, Use Cqlsh to update the data, UPDATE is a command that updates the data in a table., Use the following keywords when updating data in a table:, Where,
Cassandra creates the data
May 17, 2021 12:00 0 Comment Cassandra
Create data using Cqlsh, Create data using Cqlsh, Create data using the Java API, Create data using Cqlsh, You can use, the command INSERT, to insert data into the columns of rows in the table., The syntax for creating data in a tab
Cassandra batch
May 17, 2021 12:00 0 Comment Cassandra
Use Cqlsh to execute batch statements, Use Cqlsh to execute batch statements, Batch statements that use the Java API, Use Cqlsh to execute batch statements, With, BATCH,, you can execute multiple modification statements (insert, update, delete) at the same time., The
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
Cassandra-related resources
May 17, 2021 13:00 0 Comment Cassandra
Cassandra related links, Cassandra related links, Cassandra books, The following resources contain additional information about Cassandra., Use them to gain more in-depth knowledge of this topic., Cassandra related li
Cassandra discussion
May 17, 2021 13:00 0 Comment Cassandra
Cassandra discussion, Cassandra is a distributed database from Apache that is highly scalable and can be used to manage large amounts of structured data., It provides high
Do you have to be cassandra compliant to query cassandra?
Nov 30, 2021 14:00 0 Comment Cassandra
Note that all query clauses must be Cassandra compliant. You cannot, for example, use $in operator for a key which is not part of the primary key. Querying in Cassandra is very basic but could be confusing at first. Take a look at this post and, obvsiouly, at the cql query documentationConsequently,
How did rapunzel and cassandra fight in cassandra's revenge?
Nov 30, 2021 14:00 0 Comment Cassandra
Cassandra battles with Rapunzel, who tries to talk some sense into her, and Cassandra reminds Rapunzel again of what she saw in the House of Yesterday's Tomorrow. Rapunzel tries to remind Cassandra that Gothel kidnapped her and held her against her will, while Cassandra reminds Rapunzel of how Gothe
How to get list of tables in cassandra-cassandra?
Nov 30, 2021 14:00 0 Comment Cassandra
Now if you are only interested to get the count of tables in each Keyspace, you can use below query. The output of above query will be the count of tables in each keyspace in Cassandra.Similarly, how to get list of tables in each keyspace in Cassandra? We can use system_schema.tables to get list of
What is the cassandra.yaml configuration file for cassandra?
Nov 30, 2021 14:00 0 Comment Cassandra
yaml configuration file? The cassandra.yaml file is the main configuration file of Cassandra. This file is very important for all kinds of Cassandra node and cluster level configurations. After changing properties in the cassandra.yaml file, you must restart the node for getting the configuration ch