docs/_docs/sql-reference/dml.adoc

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= Data Manipulation Language (DML)

This section walks you through all data manipulation language (DML) commands supported by Ignite 3.

WARNING: Currently, `WITH` and `MERGE` commands are not supported.

== SELECT

Retrieves data from a table or multiple tables.

[source,sql]
----
SELECT [ hintComment ] [ ALL | DISTINCT ]
    { * | projectItem [, projectItem ]* }
FROM tableExpression
[ WHERE booleanExpression ]
[ GROUP BY { groupItem [, groupItem ]* } ]
[ HAVING booleanExpression ]
----

=== JOINs

Ignite supports colocated and non-colocated distributed SQL joins. Furthermore, if the data resides in different tables, Ignite allows for cross-table joins as well.
Joins between partitioned and replicated data sets always work without any limitations.
However, if you join partitioned data sets, then you have to make sure that the keys you are joining on are either colocated or make sure you switched on the non-colocated joins parameter for a query.

== INSERT

Inserts data into a table.

[source,sql]
----
{ INSERT } INTO tablePrimary
[ '(' column [, column ]* ')' ]
query
----

== UPDATE

Updates data in a table.

[source,sql]
----
UPDATE tablePrimary
SET assign [, assign ]*
[ WHERE booleanExpression ]
----

== DELETE

Deletes data from a table.

[source,sql]
----
DELETE FROM tablePrimary [ [ AS ] alias ]
[ WHERE booleanExpression ]
----