SELECT to switch the connection to another database index.
Upstash exposes a single logical database, so 0 is the only valid index and anything else returns an error. The command is accepted so that clients and frameworks that issue SELECT 0 while setting up a connection keep working unchanged. To separate concerns inside one database, use key prefixes instead of numbered databases.
Syntax
Arguments
Important points
- Upstash exposes a single logical database. Any index other than
0returns an error.
Response
The reply reports the result of the operation. Error replies have the same shape in RESP2 and RESP3 and are surfaced as exceptions by the SDKs below.Client libraries often decode bulk strings, maps, sets, and numeric strings into language-native values. The table describes the Redis wire reply.
Examples
TCP examples use the TLSREDIS_URL from the Upstash console. REST examples use UPSTASH_REDIS_REST_URL and UPSTASH_REDIS_REST_TOKEN.
Redis CLI
Redis CLI
@upstash/redis
@upstash/redis
This command is not supported yet in
@upstash/redis.upstash_redis
upstash_redis
This command is not supported yet in
upstash_redis.ioredis
ioredis
node-redis
node-redis
redis-py
redis-py
go-redis
go-redis
jedis
jedis
redis-rs
redis-rs