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CQL, or Cassandra Query Language, is a query language for interacting with ScyllaDB, which is similar in syntax and usage to SQL for relational databases. It allows you to define, query, and modify data. CQL is designed to be simple and intuitive, making it easier for those familiar with SQL to transition to working with ScyllaDB.
Learning and mastering CQL is crucial for designing queries. See the ScyllaDB documentation for CQL reference and CQL-related topics.
cqlsh is a command-line shell for interacting with ScyllaDB through CQL. It provides an interface to run CQL commands and scripts. cqlsh connects to a ScyllaDB node and allows you to execute CQL commands directly. This tool is essential for database management tasks and querying data.
You can connect to the node you started earlier in this guide, with cqlsh using the following command:
docker exec -it scylla cqlsh
The output of this command will look something like this:
Connected to at 172.17.0.2:9042.
[cqlsh 5.0.1 | Cassandra 3.0.8 | CQL spec 3.3.1 | Native protocol v4]
Use HELP for help.
cqlsh>
See CQLSh: the CQL shell for details.
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