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CQL
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CQL for Apache Cassandra
Cassandra 5.0
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HCD 1.0 (Latest)
DSE 6.9
DSE 6.8
DSE 5.1
Cassandra 5.0
Astra DB
Overview
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Apache Cassandra structure
Get started
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Vector search quickstart
CQL quickstart
SAI quickstart
Plan
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Data modeling
Data modeling concepts
Data modeling analysis
Connect
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cqlsh (startup options)
Accessing data using CQL
Starting the standalone cqlsh tool
Starting cqlsh
Develop
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Develop
Introduction to CQL
Keyspaces
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Keyspaces
Keyspace concepts
Create a keyspace
Check a keyspace
Alter a keyspace
Drop a keyspace
Tables
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Tables
Table concepts
Create a table
Check a table
Alter a table
Truncate a table
Drop a table
Columns
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Columns
Managing columns
Create a table column
Check column existence
Alter a table column
Drop a column
Collections
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Collections
Collection data types overview
Create a collection
Check a collection
Alter a collection
Drop a collection column
User-defined objects
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User-defined objects
UDTs
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UDTs
Create a user-defined type (UDT)
Check for user-defined type (UDT) existence
Alter a user-defined type (UDT)
Drop a user-defined type (UDT)
UDFs
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UDFs
Create a user-defined function (UDF)
Check a user-defined function (UDF)
Drop a user-defined function (UDF)
UDAs
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Create a user-defined aggregate function (UDA)
Checking a user-defined aggregate (UDA)
Drop a user-defined aggregate (UDA)
Materialized Views
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Materialized views
Materialized views concepts
Known limitations of materialized views
Materialized views (MVs) examples
Create a materialized view (MV)
Alter a materialized view (MV)
Drop a materialized view
Frequently asked questions about materialized views
Indexes
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Indexes
Indexing concepts
Building and maintaining secondary indexes
SAI
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Storage-Attached Indexing (SAI)
SAI concepts
SAI quickstart
SAI examples
Create SAI index
Check SAI existence
Alter SAI index
Drop SAI index
Query with SAI
Configure SAI indexes
Monitor SAI indexes
SAI FAQ
2I
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Secondary indexing (2i)
2i concepts
2i examples
Create 2i index
Check 2i existence
Alter 2i index
Drop 2i index
Query with 2i
SASI
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SSTable-Attached Indexing (SASI)
SASI concepts
Create SASI index
Check SASI existence
Alter SASI index
Drop SASI index
Query with SASI
Configure SASI indexes
Insert
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Insert and update data
Insert simple data
Set column
List column
Map column
Tuple column
User-defined type (UDT) column
Date column
Time column
Timestamp column
Duration column
UUID and timeuuid column
Counter column
Static column
Lightweight transactions (LWTs)
Inserting JSON formatted values
Batching inserts and updates
Batching inserts, updates, and deletes
Good use of BATCH statement
Misuse of BATCH statement
Inserting data from a CSV file
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Importing data from a CSV file
Setting the time-to-live (TTL) for value
Inserting, updating, and deleting data
Delete
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Delete data
Deleting values from a column or entire row
Expiring data with time-to-live
Expiring data with TTL example
Query
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Querying and retrieving data
Querying
Using tracing
Testing performance impact using tracing
Tracing performance
Secure
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Secure
Configure authentication and authorization
Security quickstart
Using cqlsh with authentication
System tables for authentication and authorization
Cycling Examples
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keyspace-cycling-alt
keyspace-cycling
keyspace-test
materialized-view-cyclist-base
query-system-schema
roles
sstable-tasks-desc
table-basic-info-ttl-expire
table-birthday
table-calendar
table-check
table-comments-vs-dse68
table-comments-vs
table-comments
table-country-flag
table-cyclist-alt-stats
table-cyclist-base-ext
table-cyclist-base
table-cyclist-career-teams
table-cyclist-category
table-cyclist-emails
table-cyclist-expenses
table-cyclist-id
table-cyclist-name
table-cyclist-points
table-cyclist-races
table-cyclist-semi-pro
table-cyclist-sponsors
table-cyclist-stats
table-cyclist-teams
table-events
table-geospatial
table-lastname-bio
table-mechanic
table-mixed-case
table-nation-rank
table-numbers
table-popular-count
table-popular
table-race-results
table-race-sponsors
table-race-starts
table-race-times-summary
table-race-times
table-race-winners
table-rank-by-year-and-name
table-route
table-sample-times
table-team-average
table-team-race-time
table-test-average-state
table-upcoming-calendar
table-uppercase
user-defined-aggregate-average
user-defined-function-flog
user-defined-function-left
user-defined-type-basic-info-expire
user-defined-type-basic-info
user-defined-type-fullname
user-defined-type-race
users
Reference
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Reference
CQL quick reference
CQL command syntax
DATA TYPES
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Data types
Date, time, and timestamp format
UUIDs and TimeUUIDs
Arithmetic operators
CQL native functions
CQL native aggregates
System and virtual tables
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Keyspace tables
Querying system tables
Functions, aggregates, and user types
Virtual keyspaces and tables
Virtual tables for SAI indexes and SSTables
CQLSH TOOL
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cqlsh (startup options)
Configuring a cqlshrc file
Starting cqlsh on a search node
CQLSH COMMANDS
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CQL shell (cqlsh) reference
CAPTURE
CLEAR
CONSISTENCY
COPY TO
COPY FROM
DESCRIBE AGGREGATE
DESCRIBE CLUSTER
DESCRIBE SCHEMA
DESCRIBE FUNCTION
DESCRIBE INDEX
DESCRIBE KEYSPACE
DESCRIBE MATERIALIZED VIEW
DESCRIBE SEARCH INDEX
DESCRIBE TABLE
DESCRIBE TYPE
EXECUTE AS
EXPAND
EXIT
LOGIN
PAGING
SERIAL CONSISTENCY
SHOW
SOURCE
TIMING
TRACING
CQL COMMANDS
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CQL commands
ALTER KEYSPACE
ALTER MATERIALIZED VIEW
ALTER ROLE
ALTER SEARCH INDEX CONFIG
ALTER SEARCH INDEX SCHEMA
ALTER TABLE
ALTER TYPE
ALTER USER (Deprecated)
BATCH
COMMIT SEARCH INDEX
CREATE AGGREGATE
CREATE FUNCTION
CREATE INDEX
CREATE KEYSPACE
CREATE MATERIALIZED VIEW
CREATE ROLE
CREATE SEARCH INDEX
CREATE TABLE
CREATE TYPE
CREATE USER (Deprecated)
DELETE
DROP AGGREGATE
DROP FUNCTION
DROP INDEX
DROP KEYSPACE
DROP MATERIALIZED VIEW
DROP ROLE
DROP SEARCH INDEX
DROP TABLE
DROP TYPE
DROP USER (Deprecated)
GRANT ROLE
GRANT PERMISSION
INSERT
LIST PERMISSIONS
LIST ROLES
LIST USERS (Deprecated)
RESTRICT
REVOKE ROLE
REVOKE PERMISSION
SELECT
TRUNCATE
UNRESTRICT
UPDATE
USE
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