mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-02 12:32:04 +00:00
b46e31d198
* Typo fix. * Links fix. * Fixed links in docs. * More fixes. * Update index.md (#57) * DOCAPI-7743: RU translation. * Update select.md * Update index.md
31 lines
1.6 KiB
Markdown
31 lines
1.6 KiB
Markdown
# Table Functions
|
|
|
|
Table functions are methods for constructing tables.
|
|
|
|
You can use table functions in:
|
|
|
|
* [CREATE TABLE AS <table_function()>](../create.md#create-table-query) query.
|
|
|
|
It's one of the methods of creating a table.
|
|
|
|
* [FROM](../select.md#select-from) clause of the `SELECT` query.
|
|
|
|
The method for creating a temporary table that is available only in the current query. The table is deleted when the query finishes.
|
|
|
|
!!! warning "Warning"
|
|
You can't use table functions if the [allow_ddl](../../operations/settings/permissions_for_queries.md#settings_allow_ddl) setting is disabled.
|
|
|
|
Function | Description
|
|
---------|------------
|
|
[file](file.md) | Creates a [File](../../operations/table_engines/file.md)-engine table.
|
|
[merge](merge.md) | Creates a [Merge](../../operations/table_engines/merge.md)-engine table.
|
|
[numbers](numbers.md) | Creates a table with a single column filled with integer numbers.
|
|
[remote](remote.md) | Allows you to access remote servers without creating a [Distributed](../../operations/table_engines/distributed.md)-engine table.
|
|
[url](url.md) | Creates a [Url](../../operations/table_engines/url.md)-engine table.
|
|
[mysql](mysql.md) | Creates a [MySQL](../../operations/table_engines/mysql.md)-engine table.
|
|
[jdbc](jdbc.md) | Creates a [JDBC](../../operations/table_engines/jdbc.md)-engine table.
|
|
[odbc](odbc.md) | Creates a [ODBC](../../operations/table_engines/odbc.md)-engine table.
|
|
[hdfs](hdfs.md) | Creates a [HDFS](../../operations/table_engines/hdfs.md)-engine table.
|
|
|
|
[Original article](https://clickhouse.yandex/docs/en/query_language/table_functions/) <!--hide-->
|