SWAPDB

Swaps two databases.

Usage

SWAPDB index1 index2

Description

This command swaps two Valkey databases, so that immediately all the clients connected to a given database will see the data of the other database, and the other way around.

Note: SWAPDB is disabled in cluster mode to prevent shard inconsistencies, as swapping databases on one shard while leaving others unchanged could lead to data inconsistencies.

Reply

Simple string reply: OK.

Complexity

O(N) where N is the count of clients watching or blocking on keys from both databases.

ACL Categories

@dangerous @fast @keyspace @write

Examples

SWAPDB 0 1

This will swap database 0 with database 1. All the clients connected with database 0 will immediately see the new data, exactly like all the clients connected with database 1 will see the data that was formerly of database 0.

History

• 4.0.0: Introduced.

See also

ACL, ACL CAT, ACL DELUSER, ACL DRYRUN, ACL GENPASS, ACL GETUSER, ACL HELP, ACL LIST, ACL LOAD, ACL LOG, ACL SAVE, ACL SETUSER, ACL USERS, ACL WHOAMI, BGREWRITEAOF, BGSAVE, COMMAND, COMMAND COUNT, COMMAND DOCS, COMMAND GETKEYS, COMMAND GETKEYSANDFLAGS, COMMAND HELP, COMMAND INFO, COMMAND LIST, COMMANDLOG, COMMANDLOG GET, COMMANDLOG HELP, COMMANDLOG LEN, COMMANDLOG RESET, CONFIG, CONFIG GET, CONFIG HELP, CONFIG RESETSTAT, CONFIG REWRITE, CONFIG SET, DBSIZE, DEBUG, FAILOVER, FLUSHALL, FLUSHDB, INFO, LASTSAVE, LATENCY, LATENCY DOCTOR, LATENCY GRAPH, LATENCY HELP, LATENCY HISTOGRAM, LATENCY HISTORY, LATENCY LATEST, LATENCY RESET, LOLWUT, MEMORY, MEMORY DOCTOR, MEMORY HELP, MEMORY MALLOC-STATS, MEMORY PURGE, MEMORY STATS, MEMORY USAGE, MODULE, MODULE HELP, MODULE LIST, MODULE LOAD, MODULE LOADEX, MODULE UNLOAD, MONITOR, PSYNC, REPLCONF, REPLICAOF, RESTORE-ASKING, ROLE, SAVE, SHUTDOWN, SLOWLOG, SLOWLOG GET, SLOWLOG HELP, SLOWLOG LEN, SLOWLOG RESET, SYNC, TIME.