--- sidebar_label: Table Functions sidebar_position: 34 --- # Table Functions Table functions are methods for constructing tables. You can use table functions in: - [FROM](../../sql-reference/statements/select/from.md) 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. - [CREATE TABLE AS table_function()](../../sql-reference/statements/create/table.md) query. It's one of the methods of creating a table. - [INSERT INTO TABLE FUNCTION](../../sql-reference/statements/insert-into.md#inserting-into-table-function) query. :::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](../../sql-reference/table-functions/file.md) | Creates a [File](../../engines/table-engines/special/file.md)-engine table. | | [merge](../../sql-reference/table-functions/merge.md) | Creates a [Merge](../../engines/table-engines/special/merge.md)-engine table. | | [numbers](../../sql-reference/table-functions/numbers.md) | Creates a table with a single column filled with integer numbers. | | [remote](../../sql-reference/table-functions/remote.md) | Allows you to access remote servers without creating a [Distributed](../../engines/table-engines/special/distributed.md)-engine table. | | [url](../../sql-reference/table-functions/url.md) | Creates a [Url](../../engines/table-engines/special/url.md)-engine table. | | [mysql](../../sql-reference/table-functions/mysql.md) | Creates a [MySQL](../../engines/table-engines/integrations/mysql.md)-engine table. | | [postgresql](../../sql-reference/table-functions/postgresql.md) | Creates a [PostgreSQL](../../engines/table-engines/integrations/postgresql.md)-engine table. | | [jdbc](../../sql-reference/table-functions/jdbc.md) | Creates a [JDBC](../../engines/table-engines/integrations/jdbc.md)-engine table. | | [odbc](../../sql-reference/table-functions/odbc.md) | Creates a [ODBC](../../engines/table-engines/integrations/odbc.md)-engine table. | | [hdfs](../../sql-reference/table-functions/hdfs.md) | Creates a [HDFS](../../engines/table-engines/integrations/hdfs.md)-engine table. | | [s3](../../sql-reference/table-functions/s3.md) | Creates a [S3](../../engines/table-engines/integrations/s3.md)-engine table. | | [sqlite](../../sql-reference/table-functions/sqlite.md) | Creates a [sqlite](../../engines/table-engines/integrations/sqlite.md)-engine table. | [Original article](https://clickhouse.com/docs/en/sql-reference/table-functions/)