ClickHouse/docs/en/sql-reference/statements/exchange.md
2022-04-04 02:05:35 +03:00

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49 EXCHANGE

EXCHANGE Statement

Exchanges the names of two tables or dictionaries atomically. This task can also be accomplished with a RENAME query using a temporary name, but the operation is not atomic in that case.

!!! note "Note" The EXCHANGE query is supported by the Atomic database engine only.

Syntax

EXCHANGE TABLES|DICTIONARIES [db0.]name_A AND [db1.]name_B

EXCHANGE TABLES

Exchanges the names of two tables.

Syntax

EXCHANGE TABLES [db0.]table_A AND [db1.]table_B

EXCHANGE DICTIONARIES

Exchanges the names of two dictionaries.

Syntax

EXCHANGE DICTIONARIES [db0.]dict_A AND [db1.]dict_B

See Also