{"id":50189,"date":"2023-09-25T15:14:34","date_gmt":"2023-07-05T01:22:40","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bb%8b%e7%bb%8d%e4%b8%80%e4%b8%8bcassandra%e7%9a%84cql%e5%b7%a5%e5%85%b7%ef%bc%88%e5%9b%be%e5%bd%a2%e7%95%8c%e9%9d%a2%e5%b7%a5%e5%85%b7%ef%bc%89-%e3%80%8edatastax-devcenter%e3%80%8f\/"},"modified":"2024-05-04T01:31:16","modified_gmt":"2024-05-03T17:31:16","slug":"%e4%bb%8b%e7%bb%8d%e4%b8%80%e4%b8%8bcassandra%e7%9a%84cql%e5%b7%a5%e5%85%b7%ef%bc%88%e5%9b%be%e5%bd%a2%e7%95%8c%e9%9d%a2%e5%b7%a5%e5%85%b7%ef%bc%89-%e3%80%8edatastax-devcenter%e3%80%8f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bb%8b%e7%bb%8d%e4%b8%80%e4%b8%8bcassandra%e7%9a%84cql%e5%b7%a5%e5%85%b7%ef%bc%88%e5%9b%be%e5%bd%a2%e7%95%8c%e9%9d%a2%e5%b7%a5%e5%85%b7%ef%bc%89-%e3%80%8edatastax-devcenter%e3%80%8f\/","title":{"rendered":"\u4ecb\u7ecd\u4e00\u4e0bCassandra\u7684CQL\u5de5\u5177\uff08\u56fe\u5f62\u754c\u9762\u5de5\u5177\uff09\u2014\u300eDataStax DevCenter\u300f"},"content":{"rendered":"<p>\u6211\u5011\u5c07\u4ecb\u7d39\u4e00\u500b\u540d\u70ba\u300eDataStax DevCenter\u300f\u7684Cassandra CQL\u5de5\u5177\uff08\u5716\u5f62\u4f7f\u7528\u8005\u4ecb\u9762\u5de5\u5177\uff09\u3002<br \/>\n\u9019\u500b\u5de5\u5177\u76f8\u7576\u65bcOracle\u7684\u300cSQL Developer\u300d\u7b49\u5de5\u5177\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d9021913a08637a6daffa\/1-0.png\" alt=\"DevCenter.png\" \/><\/div>\n<h2>\u521b\u5efa\u4e00\u4e2aDataStax Academy\u5e10\u6237\u3002<\/h2>\n<p>\u521b\u5efa\u65b0\u8d26\u6237 | DataStax\u5b66\u9662\uff1a\u514d\u8d39\u7684Cassandra\u6559\u7a0b\u548c\u57f9\u8bad<br \/>\nhttps:\/\/academy.datastax.com\/user\/register?destination=home<\/p>\n<h2>\u4e0b\u8f7d\u300eDataStax DevCenter\u300f\u3002<\/h2>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d9021913a08637a6daffa\/6-0.png\" alt=\"DevCenter._DLpng.png\" \/><\/div>\n<h2>\u5728system keyspace\u4e2d\uff0c\u5c1d\u8bd5\u83b7\u53d6\u7cfb\u7edf\u65e5\u671f\u548cTimeUUID\u3002<\/h2>\n<p>\u67e5\u8be2<br \/>\nSELECT dateof(now()) AS \u7cfb\u7edf\u65e5\u671f, now() AS \u65f6\u95f4UUID FROM system.local;<\/p>\n<p>\u7ed3\u679c<\/p>\n<div>\n<div class=\"post-table\">sysdatetimeuuid2018-02-16 07:30:30+000044529f03-12eb-11e8-9fb5-fddf3f702750<\/div>\n<\/div>\n<p>\u4ee5\u4e0b\u662fCQL\u6307\u4ee4\u7684\u793a\u4f8b\u6837\u672c\u3002<\/p>\n<h2>\u521b\u5efakeyspace<\/h2>\n<p>\u95ee\u9898<\/p>\n<pre class=\"post-pre\"><code>CREATE KEYSPACE [keyspace_name] WITH replication = { 'class' : 'SimpleStrategy', 'replication_factor' : 1 };\r\n<\/code><\/pre>\n<h2>\u5728CQLSH\u4e2d\u6267\u884ckeyspace\u786e\u8ba4\u3002<\/h2>\n<p>\u63cf\u8ff0\u952e\u7a7a\u95f4[keyspace_name]\uff1b<br \/>\n\u952e\u7a7a\u95f4\u63cf\u8ff0[keyspace_name]\uff1b<\/p>\n<p>\u7ed3\u679c<\/p>\n<pre class=\"post-pre\"><code>CREATE KEYSPACE keyspace_name WITH replication = {'class': 'SimpleStrategy', 'replication_factor': '1'}  AND durable_writes = true;\r\n<\/code><\/pre>\n<h2>\u5220\u9664\u952e\u7a7a\u95f4<\/h2>\n<p>\u5220\u9664\u952e\u7a7a\u95f4[keyspace_name]\u3002<\/p>\n<h2>\u521b\u5efa\u8868\u683c<\/h2>\n<p>\u8be2\u95ee<\/p>\n<pre class=\"post-pre\"><code>CREATE TABLE keyspace_name.table_name (\r\n    column_id uuid,\r\n    column_str text,\r\n    column_int int,\r\n    column_data text,\r\n    PRIMARY KEY (column_id, column_str, column_int)\r\n);\r\n<\/code><\/pre>\n<h2>\u67e5\u770bTable\uff08\u5728cqlsh&gt;\u4e0b\u6267\u884c\uff09<\/h2>\n<p>\u67e5\u8be2\u63cf\u8ff0\u952e\u7a7a\u95f4 [keyspace_name];<br \/>\nDESCRIBE KEYSPACE [keyspace_name];<\/p>\n<p>\u7ed3\u679c<\/p>\n<pre class=\"post-pre\"><code>CREATE KEYSPACE keyspace_name WITH replication = {'class': 'SimpleStrategy', 'replication_factor': '1'}  AND durable_writes = true;\r\n\r\nCREATE TABLE keyspace_name.table_name (\r\n    column_id uuid,\r\n    column_str text,\r\n    column_int int,\r\n    column_data text,\r\n    PRIMARY KEY (column_id, column_str, column_int)\r\n) WITH CLUSTERING ORDER BY (column_str ASC, column_int ASC)\r\n    AND bloom_filter_fp_chance = 0.01\r\n    AND caching = '{\"keys\":\"ALL\", \"rows_per_partition\":\"NONE\"}'\r\n    AND comment = ''\r\n    AND compaction = {'class': 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy'}\r\n    AND compression = {'sstable_compression': 'org.apache.cassandra.io.compress.LZ4Compressor'}\r\n    AND dclocal_read_repair_chance = 0.1\r\n    AND default_time_to_live = 0\r\n    AND gc_grace_seconds = 864000\r\n    AND max_index_interval = 2048\r\n    AND memtable_flush_period_in_ms = 0\r\n    AND min_index_interval = 128\r\n    AND read_repair_chance = 0.0\r\n    AND speculative_retry = '99.0PERCENTILE';\r\n<\/code><\/pre>\n<h2>\u5220\u9664\u8868\u683c<\/h2>\n<p>\u67e5\u8be2<br \/>\n\u5220\u9664\u952e\u7a7a\u95f4\u540d.table_name\u8868;<\/p>\n<h2>\u63d2\u5165<\/h2>\n<p>\u67e5\u8be2<\/p>\n<pre class=\"post-pre\"><code>INSERT INTO keyspace_name.table_name (column_id, column_str, column_int, column_data) \r\nVALUES (44529f03-12eb-11e8-9fb5-fddf3f702750, 'String', 1, 'Data');\r\n<\/code><\/pre>\n<h2>\u9009\u62e9<\/h2>\n<p>\u67e5\u8be2<br \/>\n\u5728\u952e\u7a7a\u95f4\u540d.\u8868\u540d\u4e2d\u9009\u62e9*\uff0c\u5176\u4e2dcolumn_id = 44529f03-12eb-11e8-9fb5-fddf3f702750\u3002<\/p>\n<p>\u6210\u679c<\/p>\n<div>\n<div class=\"post-table\">column_idcolumn_strcolumn_intcolumn_data44529f03-12eb-11e8-9fb5-fddf3f702750String1Data<\/div>\n<\/div>\n<h2>\u76f8\u540c\u7684KEY\u8fdb\u884cINSERT\uff08\u88abUPDATE\uff09<\/h2>\n<p>\u67e5\u8be2<\/p>\n<pre class=\"post-pre\"><code>INSERT INTO keyspace_name.table_name (column_id, column_str, column_int, column_data) \r\nVALUES (44529f03-12eb-11e8-9fb5-fddf3f702750, 'String', 1, 'INSERT(UPDATE)');\r\n<\/code><\/pre>\n<p>\u7ed3\u679c<\/p>\n<div>\n<div class=\"post-table\">column_idcolumn_strcolumn_intcolumn_data44529f03-12eb-11e8-9fb5-fddf3f702750String1INSERT(UPDATE)<\/div>\n<\/div>\n<h2>\u66f4\u65b0<\/h2>\n<p>\u8be2\u95ee<\/p>\n<pre class=\"post-pre\"><code>UPDATE keyspace_name.table_name SET column_data = 'UPDATE' \r\nWHERE column_id = 44529f03-12eb-11e8-9fb5-fddf3f702750 AND column_str = 'String' AND column_int = 1;\r\n<\/code><\/pre>\n<p>\u7ed3\u679c<\/p>\n<div>\n<div class=\"post-table\">column_idcolumn_strcolumn_intcolumn_data44529f03-12eb-11e8-9fb5-fddf3f702750String1UPDATE<\/div>\n<\/div>\n<h2>\u5220\u9664<\/h2>\n<p>\u8bf7\u6c42<\/p>\n<pre class=\"post-pre\"><code>DELETE FROM keyspace_name.table_name \r\nWHERE column_id = 44529f03-12eb-11e8-9fb5-fddf3f702750 AND column_str = 'String' AND column_int = 1;\r\n<\/code><\/pre>\n<h2>\u622a\u65ad<\/h2>\n<p>\u67e5\u8be2<br \/>\nTRUNCATE \u952e\u7a7a\u95f4\u540d\u79f0.\u8868\u540d;<\/p>\n<h2>\u8bf7\u63d0\u4f9b\u76f8\u5173\u94fe\u63a5\u6216\u9644\u5e26\u5f15\u7528\u94fe\u63a5<\/h2>\n<ul class=\"post-ul\">CQL commands<\/ul>\n<h2>\u6700\u540e<\/h2>\n<p>\u7531\u4e8eQiita\u7684[cql]\u548c[cqlsh]\u6807\u7b7e\u6ca1\u6709\u56fe\u6807\uff0c\u6211\u6a21\u4eff\u4e86Qiita\u7684\u56fe\u6807\u6765\u8bbe\u8ba1\uff01\u8bbe\u8ba1\u5f97\u76f8\u5f53\u4e0d\u9519\uff01\u5982\u679c\u4f60\u559c\u6b22\u7684\u8bdd\uff0c\u8bf7\u7ed9\u4e2a&#8221;\u8d5e&#8221;\uff01<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d9021913a08637a6daffa\/57-0.png\" alt=\"CQL.png\" \/><\/div>\n<ul class=\"post-ul\">\uff1c\u53c2\u8003\u30ea\u30f3\u30af\uff1e Qiita\u306e\u30bf\u30b0\u306e\u30a2\u30a4\u30b3\u30f3\u306b\u3064\u3044\u3066<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u5011\u5c07\u4ecb\u7d39\u4e00\u500b\u540d\u70ba\u300eDataStax DevCenter\u300f\u7684Cassandra CQL\u5de5\u5177\uff08\u5716\u5f62\u4f7f\u7528\u8005\u4ecb\u9762\u5de5\u5177 [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-50189","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u4ecb\u7ecd\u4e00\u4e0bCassandra\u7684CQL\u5de5\u5177\uff08\u56fe\u5f62\u754c\u9762\u5de5\u5177\uff09\u2014\u300eDataStax DevCenter\u300f - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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