{"id":16821,"date":"2018-05-29T06:05:40","date_gmt":"2018-05-29T06:05:40","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=16821"},"modified":"2021-04-05T13:45:26","modified_gmt":"2021-04-05T08:15:26","slug":"cqlsh","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/cqlsh\/","title":{"rendered":"Cassandra CQLSH &#8211; A Complete List of Cassandra Commands"},"content":{"rendered":"<h2>1. Objective &#8211; Cassandra CQLSH<\/h2>\n<p><span style=\"font-size: large\">In this <a href=\"https:\/\/data-flair.training\/blogs\/apache-cassandra-tutorial\/\"><strong>Cassandra Tutorial<\/strong><\/a>, we will go through Cassandra CQLSH. We will learn about CQLSH in Cassandra and how to use it to perform different operations like Documented Shell Commands, Data Definition Commands, Data Manipulation Commands, and CQL Clauses. <\/span><br \/>\n<span style=\"font-size: large\">So, let&#8217;s start CQLSH tutorial.<\/span><\/p>\n<div id=\"attachment_16838\" style=\"width: 1210px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/05\/Cassandra-cqlsh-01-1.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-16838\" class=\"wp-image-16838 size-full\" src=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/05\/Cassandra-cqlsh-01-1.jpg\" alt=\"CQLSH - Cassandra COmmands\" width=\"1200\" height=\"628\" srcset=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/05\/Cassandra-cqlsh-01-1.jpg 1200w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/05\/Cassandra-cqlsh-01-1-150x79.jpg 150w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/05\/Cassandra-cqlsh-01-1-300x157.jpg 300w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/05\/Cassandra-cqlsh-01-1-768x402.jpg 768w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/05\/Cassandra-cqlsh-01-1-1024x536.jpg 1024w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/a><p id=\"caption-attachment-16838\" class=\"wp-caption-text\">Cassandra CQLSH &#8211; A Complete List of Cassandra Commands<\/p><\/div>\n<h2>2. What is CQLSH in Cassandra?<\/h2>\n<p><span style=\"font-size: large\"><em><strong>Cassandra Query Language Shell (CQLSH)<\/strong><\/em>\u00a0is basically a communication medium between Cassandra and the user. CQLSH is a platform that allows the user to launch the Cassandra query language (CQL). <\/span><\/p>\n<p><span style=\"font-size: large\">The user can perform many operations using cqlsh. Some of them include: defining a schema, inserting and altering data, executing a query etc.. <\/span><\/p>\n<p><span style=\"font-size: large\">It basically is a coding platform for Cassandra. Hence, a user can program Cassandra to work according to his requirement.<\/span><br \/>\n<span style=\"font-size: large\"><strong><a href=\"https:\/\/data-flair.training\/blogs\/cassandra-architecture\/\">Let&#8217;s revise the Architecture of Cassandra in Detail\u00a0<\/a><\/strong><\/span><\/p>\n<p><span style=\"font-size: large\">When working on a<a href=\"https:\/\/data-flair.training\/blogs\/frequent-linux-commands-beginners-tutorial\/\"> <strong>Linux operating system<\/strong><\/a>, a user can start\u00a0Cassandra Query Language Shell\u00a0by executing simple command &#8216;cqlsh&#8217;. Whereas, when working in a Windows operating system, a user has to execute &#8216;python cqlsh&#8217; to run cqlsh. <\/span><\/p>\n<p><span style=\"font-size: large\">These commands will activate cqlsh prompt. Furthermore, there are many commands that the user can use to know more about cqlsh.<\/span><\/p>\n<h2 class=\"western\">3. Documented Shell Commands<\/h2>\n<p><span style=\"font-size: large\">CQLSH allows the user to use these commands. These commands are basically used for displaying the documentation for different features of\u00a0Cassandra Query Language\u00a0Shell. <\/span><\/p>\n<p><span style=\"font-size: large\">Using these commands, a user can also perform certain tasks.<br \/>\nSome of the commands are:<\/span><\/p>\n<ul>\n<li><span style=\"font-size: large\"><strong>Help &#8211;\u00a0<\/strong>This command is used to display the documentation on help topics on cqlsh<\/span><\/li>\n<li><span style=\"font-size: large\"><strong>Exit &#8211;\u00a0<\/strong>This command is used to exit from cqlsh prompt.<\/span><\/li>\n<li><span style=\"font-size: large\"><strong>Describe &#8211;\u00a0<\/strong>This command displays the description of the current cluster and its objects.<\/span><\/li>\n<li><span style=\"font-size: large\"><strong>Expand &#8211;\u00a0<\/strong>This command is used to expand the output of the query vertically.<\/span><\/li>\n<\/ul>\n<p>Apart from these Cassandra commands, there are many more commands that are used for the same Documented Shell Commands.<br \/>\n<a href=\"https:\/\/data-flair.training\/blogs\/cassandra-shell-commands\/\"><strong>Follow the link to know about Documented Shell Commands<\/strong><\/a><\/p>\n<h2 class=\"western\">4. Data Definition Commands<\/h2>\n<p><span style=\"font-size: large\">\u00a0Cassandra Query Language\u00a0Shell provides commands that are used to create data that is systematically stored in the database. These commands are Data Definition Commands. These commands are basically the builders. <\/span><\/p>\n<p><span style=\"font-size: large\">They are used to create and alter different storage unit for data in a database. Some of the data definition commands include:<\/span><\/p>\n<ul>\n<li><span style=\"font-size: large\"><strong>Create Keyspace &#8211;\u00a0<\/strong>This command is used to create keyspace.<\/span><\/li>\n<li><span style=\"font-size: large\"><strong>Alter Keyspace &#8211;<\/strong>\u00a0This command is used to change properties of the keyspace.<\/span><\/li>\n<li><span style=\"font-size: large\"><strong>Create Table &#8211;<\/strong>\u00a0This command is used to create table.<\/span><\/li>\n<li><span style=\"font-size: large\"><strong>Create Index &#8211;\u00a0<\/strong>This command is used to define index on a column of a table.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: large\">Apart from Cassandra commands there are many more commands that use for the same data defining purpose.<\/span><br \/>\n<a href=\"https:\/\/data-flair.training\/blogs\/data-definition-command-cql\/\"><strong>Follow the link to know more about Data Defining Commands in Detail<\/strong><\/a><\/p>\n<h2 class=\"western\">5. Data Manipulation Commands<\/h2>\n<p><span style=\"color: #121214\"><span style=\"font-size: large\">These Cassandra commands in\u00a0Cassandra Query Language\u00a0Shell, allows the user to manipulate data in a table. These commands are used with other commands to subsequently alter the data in a column of a row. Some of these commands are:<\/span><\/span><\/p>\n<ul>\n<li><span style=\"color: #121214\"><span style=\"font-size: large\"><strong>Insert &#8211;\u00a0<\/strong>This command is used to add columns in a row.<\/span><\/span><\/li>\n<li><span style=\"color: #121214\"><span style=\"font-size: large\"><strong>Update &#8211;<\/strong>\u00a0This command updates the contents of a column.<\/span><\/span><\/li>\n<li><span style=\"color: #121214\"><span style=\"font-size: large\"><strong>Delete &#8211;<\/strong>\u00a0This command deletes data from a table.<\/span><\/span><\/li>\n<\/ul>\n<p><span style=\"color: #121214\"><span style=\"font-size: large\">Apart from these, there are a few commands that use for data manipulations,<strong><a href=\"https:\/\/data-flair.training\/blogs\/cql-data-manipulation-commands\/\"> follow the link<\/a><\/strong>.<\/span><\/span><\/p>\n<h2 class=\"western\">6. CQL Clauses<\/h2>\n<p><span style=\"color: #121214\"><span style=\"font-size: large\">These are not Cassandra commands. These keywords are clauses that use along with different commands or clauses to perform different operations. A few clauses are:<\/span><\/span><\/p>\n<ul>\n<li><span style=\"color: #121214\"><span style=\"font-size: large\"><strong>Select &#8211;\u00a0<\/strong>This clause is used to read or select data from a table.<\/span><\/span><\/li>\n<li><span style=\"color: #121214\"><span style=\"font-size: large\"><strong>Where &#8211;\u00a0<\/strong>This clause is mainly used by select to specify a particular data.<\/span><\/span><\/li>\n<\/ul>\n<p><a href=\"https:\/\/data-flair.training\/blogs\/cql-clauses\/\"><strong>Follow the link to explore more CQL Clauses<\/strong><\/a><\/p>\n<h2 class=\"western\">7. Conclusion<\/h2>\n<p><span style=\"font-size: large\">Hence, in this article, we learnt the Cassandra Commands used in CQLSH. Follow all the links for a better understanding of Cassandra Query Language\u00a0Shell. <\/span><\/p>\n<p><span style=\"font-size: large\">Furthermore, if you have a doubt, feel free to ask in the comment box. <\/span><br \/>\n<span style=\"font-size: large\">Related Topic-\u00a0<strong><a href=\"https:\/\/data-flair.training\/blogs\/cassandra-data-model\/\">Cassandra Data Model\u00a0<\/a><\/strong><\/span><br \/>\n<span style=\"font-size: large\"><strong><a href=\"https:\/\/en.wikipedia.org\/wiki\/Apache_Cassandra\">For reference<\/a><\/strong><\/span><span hidden class=\"__iawmlf-post-loop-links\" data-iawmlf-links=\"[{&quot;id&quot;:1921,&quot;href&quot;:&quot;https:\\\/\\\/en.wikipedia.org\\\/wiki\\\/Apache_Cassandra&quot;,&quot;archived_href&quot;:&quot;http:\\\/\\\/web-wp.archive.org\\\/web\\\/20251002025136\\\/https:\\\/\\\/en.wikipedia.org\\\/wiki\\\/Apache_Cassandra&quot;,&quot;redirect_href&quot;:&quot;&quot;,&quot;checks&quot;:[{&quot;date&quot;:&quot;2025-12-10 09:49:52&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2025-12-13 15:07:28&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2025-12-17 07:34:35&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2025-12-20 10:47:40&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2025-12-24 08:09:26&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2025-12-30 01:58:56&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-01-05 11:47:53&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-01-12 05:15:45&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-01-15 19:58:10&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-01-19 02:58:29&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-01-26 23:53:09&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-01-30 03:59:41&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-02 06:12:23&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-05 10:14:45&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-08 10:44:18&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-15 03:58:34&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-20 14:25:59&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-25 07:05:25&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-02 10:59:48&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-06 04:44:04&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-09 15:01:14&quot;,&quot;http_code&quot;:429},{&quot;date&quot;:&quot;2026-03-13 14:45:16&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-17 05:15:46&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-21 14:03:56&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-25 10:23:04&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-28 10:38:31&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-04-01 04:38:40&quot;,&quot;http_code&quot;:429},{&quot;date&quot;:&quot;2026-04-08 20:21:21&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-04-12 19:15:18&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-04-17 17:24:15&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-04-22 10:00:10&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-04-28 14:52:57&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-05-03 10:48:23&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-05-07 07:58:47&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-05-11 14:45:10&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-05-16 06:52:18&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-05-21 08:00:07&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-05-25 00:20:49&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-05-29 18:14:03&quot;,&quot;http_code&quot;:404},{&quot;date&quot;:&quot;2026-06-05 16:45:03&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-06-12 22:35:40&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-06-18 05:15:56&quot;,&quot;http_code&quot;:200}],&quot;broken&quot;:false,&quot;last_checked&quot;:{&quot;date&quot;:&quot;2026-06-18 05:15:56&quot;,&quot;http_code&quot;:200},&quot;process&quot;:&quot;done&quot;}]\"><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. Objective &#8211; Cassandra CQLSH In this Cassandra Tutorial, we will go through Cassandra CQLSH. We will learn about CQLSH in Cassandra and how to use it to perform different operations like Documented Shell&#46;&#46;&#46;<\/p>\n","protected":false},"author":7,"featured_media":16838,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[2334,2338,2378,3023,3029,3304,3330,4029],"class_list":["post-16821","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cassandra","tag-cassandra-commands","tag-cassandra-cqlsh","tag-cassandra-query-language-shell","tag-cql-clauses","tag-cqlsh","tag-data-definition-commands","tag-data-manipulation-commands","tag-documented-shell-commands"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cassandra CQLSH - A Complete List of Cassandra Commands - DataFlair<\/title>\n<meta name=\"description\" content=\"CQLSH commands-Cassandra Query Language Shell,Cassandra Commands,Documented Shell Commands,Data Definition Commands,Data Manipulation Commands, CQL Clauses\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/data-flair.training\/blogs\/cqlsh\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cassandra CQLSH - A Complete List of Cassandra Commands - DataFlair\" \/>\n<meta property=\"og:description\" content=\"CQLSH commands-Cassandra Query Language Shell,Cassandra Commands,Documented Shell Commands,Data Definition Commands,Data Manipulation Commands, CQL Clauses\" \/>\n<meta property=\"og:url\" content=\"https:\/\/data-flair.training\/blogs\/cqlsh\/\" \/>\n<meta property=\"og:site_name\" content=\"DataFlair\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/DataFlairWS\/\" \/>\n<meta property=\"article:published_time\" content=\"2018-05-29T06:05:40+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-04-05T08:15:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/05\/Cassandra-cqlsh-01-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"628\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"DataFlair Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:site\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"DataFlair Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Cassandra CQLSH - A Complete List of Cassandra Commands - DataFlair","description":"CQLSH commands-Cassandra Query Language Shell,Cassandra Commands,Documented Shell Commands,Data Definition Commands,Data Manipulation Commands, CQL Clauses","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/data-flair.training\/blogs\/cqlsh\/","og_locale":"en_US","og_type":"article","og_title":"Cassandra CQLSH - A Complete List of Cassandra Commands - DataFlair","og_description":"CQLSH commands-Cassandra Query Language Shell,Cassandra Commands,Documented Shell Commands,Data Definition Commands,Data Manipulation Commands, CQL Clauses","og_url":"https:\/\/data-flair.training\/blogs\/cqlsh\/","og_site_name":"DataFlair","article_publisher":"https:\/\/www.facebook.com\/DataFlairWS\/","article_published_time":"2018-05-29T06:05:40+00:00","article_modified_time":"2021-04-05T08:15:26+00:00","og_image":[{"width":1200,"height":628,"url":"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/05\/Cassandra-cqlsh-01-1.jpg","type":"image\/jpeg"}],"author":"DataFlair Team","twitter_card":"summary_large_image","twitter_creator":"@DataFlairWS","twitter_site":"@DataFlairWS","twitter_misc":{"Written by":"DataFlair Team","Est. reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/data-flair.training\/blogs\/cqlsh\/#article","isPartOf":{"@id":"https:\/\/data-flair.training\/blogs\/cqlsh\/"},"author":{"name":"DataFlair Team","@id":"https:\/\/data-flair.training\/blogs\/#\/schema\/person\/beb0cab24b7aa54423a3b50e669a9dcd"},"headline":"Cassandra CQLSH &#8211; 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