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SQL statements [YSQL]
> APIs > YSQL > The SQL language >

Categorized list of SQL statements

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The YSQL statements are compatible with the SQL dialect that PostgreSQL supports. The sidebar lists all of the YSQL statements in alphabetical order. The following tables list them by catagory.

Data definition language (DDL)

Statement Description
ALTER DATABASE Change database definition
ALTER DOMAIN Change domain definition
ALTER SEQUENCE Change sequence definition
ALTER TABLE Change table definition
COMMENT Set, update, or remove a comment on a database object
CREATE AGGREGATE Create an aggregate
CREATE CAST Create a cast
CREATE DATABASE Create a database
CREATE DOMAIN Create a user-defined data type with optional constraints
CREATE EXTENSION Load an extension
CREATE FUNCTION Create a function
CREATE INDEX Create an index
CREATE MATERIALIZED VIEW Create a materialized view
CREATE OPERATOR Create an operator
CREATE OPERATOR CLASS Create an operator class
CREATE PROCEDURE Create a procedure
CREATE RULE Create a rule
CREATE SCHEMA Create a schema (namespace)
CREATE SEQUENCE Create a sequence generator
CREATE TABLE Create an empty table
CREATE TABLE AS Create a table from the results of a executing a SELECT
CREATE TRIGGER Create a trigger
CREATE TYPE Create a type
CREATE VIEW Create a view
DROP AGGREGATE Delete an aggregate
DROP CAST Delete a cast
DROP DATABASE Delete a database from the system
DROP DOMAIN Delete a domain
DROP EXTENSION Delete an extension
DROP FUNCTION Delete a function
DROP MATERIALIZED VIEW Drop a materialized view
DROP OPERATOR Delete an operator
DROP OPERATOR CLASS Delete an operator class
DROP PROCEDURE Delete a procedure
DROP RULE Delete a rule
DROP SEQUENCE Delete a sequence generator
DROP TABLE Delete a table from a database
DROP TYPE Delete a user-defined type
DROP TRIGGER Delete a trigger
REFRESH MATERIALIZED VIEW Refresh a materialized view
TRUNCATE Clear all rows from a table

Data manipulation language (DML)

Statement Description
DELETE Delete rows from a table
INSERT Insert rows into a table
SELECT Select rows from a table
UPDATE Update rows in a table

Data control language (DCL)

Statement Description
ALTER DEFAULT PRIVILEGES Define default privileges
ALTER GROUP Alter a group
ALTER POLICY Alter a row level security policy
ALTER ROLE Alter a role (user or group)
ALTER USER Alter a user
CREATE GROUP Create a group (role)
CREATE POLICY Create a row level security policy
CREATE ROLE Create a role (user or group)
CREATE USER Create a user (role)
DROP GROUP Drop a group
DROP POLICY Drop a row level security policy
DROP ROLE Drop a role (user or group)
DROP OWNED Drop owned objects
DROP USER Drop a user
GRANT Grant permissions
REASSIGN OWNED Reassign owned objects
REVOKE Revoke permissions
SET ROLE Set a role
SET SESSION AUTHORIZATION Set session authorization

Transaction control language (TCL)

Statement Description
ABORT Roll back a transaction
BEGIN Start a transaction
COMMIT Commit a transaction
END Commit a transaction
LOCK Lock a table
ROLLBACK Roll back a transaction
SET CONSTRAINTS Set constraints on current transaction
SET TRANSACTION Set transaction behaviors
SHOW TRANSACTION Show properties of a transaction
SAVEPOINT Create a new savepoint
ROLLBACK TO Rollback to a savepoint
RELEASE Release a savepoint

Session and system control

Statement Description
RESET Reset a parameter to factory settings
SET Set a system, session, or transactional parameter
SHOW Show value of a system, session, or transactional parameter

Performance control

Statement Description
DEALLOCATE Deallocate a prepared statement
EXECUTE Execute a prepared statement
EXPLAIN Explain an execution plan for a statement
PREPARE Prepare a statement

Other statements

Statement Description
ANALYZE Collect statistics about a database
COPY Copy data between tables and files
DO Execute an anonymous PL/pgSQL code block
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