DOCAPI-6206: ODBC engine and table function.

docs/en/operations/table_engines/jdbc.md

@@ -78,3 +78,5 @@ FROM jdbc_table
 ## See Also
 
 - [JDBC table function](../../query_language/table_functions/jdbc.md).
+
+[Original article](https://clickhouse.yandex/docs/en/operations/table_engines/jdbc/) <!--hide-->

docs/en/operations/table_engines/odbc.md

+# ODBC
+
+Allows ClickHouse to connect to external databases via [ODBC](https://en.wikipedia.org/wiki/Open_Database_Connectivity).
+
+To implement ODBC connection, ClickHouse uses the separate program `clickhouse-odbc-bridge`. ClickHouse starts this program automatically when it is required. The ODBC bridge program is installed by the same package with the ClickHouse server.
+
+This engine supports the [Nullable](../../data_types/nullable.md) data type.
+
+## Creating a Table
+
+```
+CREATE TABLE [IF NOT EXISTS] [db.]table_name  ENGINE = ODBC(connection_settings, external_database, external_table)
+```
+
+**Engine Parameters**
+
+- `connection_settings` — Name of the sections with connection settings in the `odbc.ini` file.
+- `external_database` — Database in an external DBMS.
+- `external_table` — A name of the table in `external_database`.
+
+## Usage Example
+
+Some examples of how to use external dictionaries through ODBC you can find in the [ODBC](../../query_language/dicts/external_dicts_dict_sources.md#dicts-external_dicts_dict_sources-odbc) section of external dictionaries configuration.
+
+## See Also
+
+- [ODBC table function](../../query_language/table_functions/odbc.md).
+
+[Original article](https://clickhouse.yandex/docs/en/operations/table_engines/jdbc/) <!--hide-->

docs/en/query_language/table_functions/odbc.md

+# jdbc
+
+Returns table that is connected via ODBC driver.
+
+```
+odbc(connection_settings, external_database, external_table)
+```
+
+**Function Parameters**
+
+- `connection_settings` — Name of the sections with connection settings in the `odbc.ini` file.
+- `external_database` — Database in an external DBMS.
+- `external_table` — A name of the table in `external_database`.
+
+To implement ODBC connection, ClickHouse uses the separate program `clickhouse-odbc-bridge`. ClickHouse starts this program automatically when it is required. The ODBC bridge program is installed by the same package with the ClickHouse server.
+
+This function supports the [Nullable](../../data_types/nullable.md) data type (based on DDL of remote table that is queried).
+
+**Examples**
+
+```
+select * from odbc('DSN=connection_settings_name', 'external_database_name', 'external_table_name')
+```
+
+Some examples of how to use external dictionaries through ODBC you can find in the [ODBC](../../query_language/dicts/external_dicts_dict_sources.md#dicts-external_dicts_dict_sources-odbc) section of external dictionaries configuration.
+
+[Original article](https://clickhouse.yandex/docs/en/query_language/table_functions/jdbc/) <!--hide-->

docs/toc_en.yml

@@ -96,7 +96,7 @@ nav:
     - 'Memory': 'operations/table_engines/memory.md'
     - 'Buffer': 'operations/table_engines/buffer.md'
     - 'JDBC': 'operations/table_engines/jdbc.md'
-
+    - 'ODBC': 'operations/table_engines/odbc.md'
 - 'SQL Reference':
   - 'hidden': 'query_language/index.md'
   - 'SELECT': 'query_language/select.md'
@@ -149,6 +149,7 @@ nav:
     - 'remote': 'query_language/table_functions/remote.md'
     - 'url': 'query_language/table_functions/url.md'
     - 'jdbc': 'query_language/table_functions/jdbc.md'
+    - 'odbc': 'query_language/table_functions/odbc.md'
   - 'Dictionaries':
     - 'Introduction': 'query_language/dicts/index.md'
     - 'External Dictionaries':