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Docs for the INSERT support
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@ -5,10 +5,12 @@ toc_title: mysql
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# mysql {#mysql}
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Allows `SELECT` queries to be performed on data that is stored on a remote MySQL server.
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Allows `SELECT` and `INSERT` queries to be performed on data that is stored on a remote MySQL server.
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**Syntax**
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``` sql
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mysql('host:port', 'database', 'table', 'user', 'password'[, replace_query, 'on_duplicate_clause']);
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mysql('host:port', 'database', 'table', 'user', 'password'[, replace_query, 'on_duplicate_clause'])
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```
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**Parameters**
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@ -39,7 +41,7 @@ The rest of the conditions and the `LIMIT` sampling constraint are executed in C
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A table object with the same columns as the original MySQL table.
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## Usage Example {#usage-example}
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**Examples**
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Table in MySQL:
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@ -50,18 +52,15 @@ mysql> CREATE TABLE `test`.`test` (
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-> `float` FLOAT NOT NULL,
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-> `float_nullable` FLOAT NULL DEFAULT NULL,
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-> PRIMARY KEY (`int_id`));
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Query OK, 0 rows affected (0,09 sec)
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mysql> insert into test (`int_id`, `float`) VALUES (1,2);
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Query OK, 1 row affected (0,00 sec)
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mysql> select * from test;
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+------+----------+-----+----------+
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+--------+--------------+-------+----------------+
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| int_id | int_nullable | float | float_nullable |
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+------+----------+-----+----------+
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+--------+--------------+-------+----------------+
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| 1 | NULL | 2 | NULL |
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+------+----------+-----+----------+
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1 row in set (0,00 sec)
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+--------+--------------+-------+----------------+
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```
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Selecting data from ClickHouse:
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@ -76,9 +75,24 @@ SELECT * FROM mysql('localhost:3306', 'test', 'test', 'bayonet', '123')
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└────────┴──────────────┴───────┴────────────────┘
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```
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## See Also {#see-also}
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Replacing and inserting:
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```sql
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INSERT INTO mysql('localhost:3306', 'test', 'test', 'bayonet', '123', 1) ('int_id', 'float') VALUES (1, 3);
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INSERT INTO mysql('localhost:3306', 'test', 'test', 'bayonet', '123', 0, 'UPDATE int_id = int_id + 1') ('int_id', 'float') VALUES (1, 4);
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SELECT * FROM mysql('localhost:3306', 'test', 'test', 'bayonet', '123');
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```
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```text
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┌─int_id─┬─int_nullable─┬─float─┬─float_nullable─┐
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│ 1 │ ᴺᵁᴸᴸ │ 3 │ ᴺᵁᴸᴸ │
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│ 2 │ ᴺᵁᴸᴸ │ 4 │ ᴺᵁᴸᴸ │
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└────────┴──────────────┴───────┴────────────────┘
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```
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**See Also**
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- [The ‘MySQL’ table engine](../../engines/table-engines/integrations/mysql.md)
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- [Using MySQL as a source of external dictionary](../../sql-reference/dictionaries/external-dictionaries/external-dicts-dict-sources.md#dicts-external_dicts_dict_sources-mysql)
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[Original article](https://clickhouse.tech/docs/en/query_language/table_functions/mysql/) <!--hide-->
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[Original article](https://clickhouse.tech/docs/en/sql-reference/table_functions/mysql/) <!--hide-->
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