Not terminate a command, so commands can be spread over several lines for clarity.Ī command is sent and executed successfully, results are sent to standard output. After you specify a keyspace to use, the prompt includes theĮxample: cqlsh 1.2.3.4 9042 -u jdoe -p mypasswordĬonnected to trace_consistency at 1.2.3.4:9042.
Of the cluster, IP address, and the port used for connection to the cqlsh utility.
t transport_factory_name, -transport=transport_factory_name Use the provided Thrift transport factory function. Equivalent to issuing a USE keyspace command
h, -help Show the online help about these options and exit. f file_name, -file=file_name Execute commands from file_name, then exit. (Cassandra 2.1.1) -e cql_statement, -execute cql_statement Accept and execute a CQL command in Cassandra 2.1 and later. cqlshrc path Use an alternative cqlshrc file location, path. debug Show additional debugging information. Shows the Apache Cassandra version, host, or tracing information for the current cqlsh client session.Įxecutes a file containing CQL statements. Provides information about the connected Apache Cassandra cluster, or about the data objects stored in the cluster.įormats the output of a query vertically. Imports and exports CSV (comma-separated values) data to and from Cassandra. Shows the current consistency level, or given a level, sets it. The cqlshrc file passes default configuration information to cqlsh.Ĭaptures command output and appends it to a file. Introduction to Cassandra Query LanguageĬassandra Query Language (CQL) is a query language for the Apache Cassandra database.ĬQL provides an API to Apache Cassandra that is simpler than the Thrift API for new applications.ĬQL input consists of statements that change data, look up data, store data, or change the way data is stored.Ībout using CQL keyspace and table properties.ĬQL support functions for transforming one or more column values into a new value.Download the latest software from DataStax, including DataStax Enterprise, the distributed hybrid cloud database built on Apache Cassandra™, unified drivers, open source tools and sneak-preview items exclusively available in DataStax Labs.Here, we use Apache Cassandra as well as it's own bundled cqlsh tool instead of an external one. cqlsh 5.0.1 Cassandra 2.1.2 CQL spec 3.2.0 Native protocol v3 Use HELP for help. Finally cqlsh should connect to cassandra: $ cqlsh Connected to Test Cluster at 127.0.0.1:9042.
The following shows you how to download and setup Cassandra, its utilities, and also use DataStax OpsCenter, which is a browser-based, visual management and monitoring tool for Cassandra.
If you use Mac OS X as your platform for development work, then you may be interested to know how easy it is to use Apache Cassandra on the Mac.Run Now open up a terminal, navigate to the bin folder. Using either terminal or the finder, go to desktop and give Read&Write permissions to all users and staff. For example sake let’s pretend you downloaded it to the desktop Give Permissions. Choose any mirror site and download the tar ball.
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