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redis查看数据库名字(redis数据库名称)

导读:

Redis是一种高性能的键值对数据库,它支持多种数据结构和丰富的操作命令。在使用Redis时,有时需要查看当前数据库的名字,本文将介绍如何通过命令行或者编程语言来查看Redis数据库的名字。

1. 命令行方式

可以通过redis-cli命令连接到Redis服务器,并执行INFO命令来查看当前数据库的名字。

步骤:

1)打开终端,输入redis-cli命令连接到Redis服务器;

2)输入INFO命令,查看输出结果中的db0字段,即为当前数据库的名字。

示例代码:

$ redis-cli

127.0.0.1:6379> INFO

# Server

redis_version:5.0.7

redis_git_sha1:00000000

redis_git_dirty:0

redis_build_id:8c4b7e2d5d6bc5a6

redis_mode:standalone

os:Linux 4.15.0-45-generic x86_64

arch_bits:64

multiplexing_api:epoll

atomicvar_api:atomic-builtin

gcc_version:7.4.0

process_id:1310

run_id:7a3aa3f2f2d8e8d4b8afba2f80b09c2b5f4cc6d2

tcp_port:6379

uptime_in_seconds:374

uptime_in_days:0

hz:10

configured_hz:10

lru_clock:13035334

executable:/usr/local/bin/redis-server

config_file:

# Clients

connected_clients:1

client_recent_max_input_buffer:2

client_recent_max_output_buffer:0

blocked_clients:0

# Memory

used_memory:1010464

used_memory_human:987.47K

used_memory_rss:3735552

used_memory_rss_human:3.56M

used_memory_peak:1010464

used_memory_peak_human:987.47K

used_memory_peak_perc:100.00%

used_memory_overhead:986736

used_memory_startup:791824

used_memory_dataset:236728

used_memory_dataset_perc:23.40%

allocator_allocated:1262384

allocator_active:1572864

allocator_resident:3145728

total_system_memory:8252686848

total_system_memory_human:7.68G

used_memory_lua:37888

used_memory_lua_human:37.00K

used_memory_scripts:0

used_memory_scripts_human:0B

number_of_cached_scripts:0

maxmemory:0

maxmemory_human:0B

maxmemory_policy:noeviction

allocator_frag_ratio:1.24

allocator_frag_bytes:310480

allocator_rss_ratio:2.00

allocator_rss_bytes:1572864

rss_overhead_ratio:1.19

rss_overhead_bytes:-4194304

mem_fragmentation_ratio:3.70

mem_fragmentation_bytes:2678512

mem_not_counted_for_evict:0

mem_replication_backlog:0

mem_clients_slaves:0

mem_clients_normal:0

mem_aof_buffer:0

mem_allocator:jemalloc-5.1.0

active_defrag_running:0

lazyfree_pending_objects:0

# Persistence

loading:0

rdb_changes_since_last_save:0

rdb_bgsave_in_progress:0

rdb_last_save_time:1581479733

rdb_last_bgsave_status:ok

rdb_last_bgsave_time_sec:-1

rdb_current_bgsave_time_sec:-1

rdb_last_cow_size:0

aof_enabled:0

aof_rewrite_in_progress:0

aof_rewrite_scheduled:0

aof_last_rewrite_time_sec:-1

aof_current_rewrite_time_sec:-1

aof_last_bgrewrite_status:ok

aof_last_write_status:ok

aof_last_cow_size:0

# Stats

total_connections_received:2

total_commands_processed:1

instantaneous_ops_per_sec:0

total_net_input_bytes:31

total_net_output_bytes:0

instantaneous_input_kbps:0.00

instantaneous_output_kbps:0.00

rejected_connections:0

sync_full:0

sync_partial_ok:0

sync_partial_err:0

expired_keys:0

evicted_keys:0

keyspace_hits:0

keyspace_misses:0

pubsub_channels:0

pubsub_patterns:0

latest_fork_usec:0

migrate_cached_sockets:0

# Replication

role:master

connected_slaves:0

master_replid:3c5f7d4b8e9d4c5f1be6c1dd50c8a1f5d29f9d5c

master_replid2:0000000000000000000000000000000000000000

master_repl_offset:0

second_repl_offset:-1

repl_backlog_active:0

repl_backlog_size:1048576

repl_backlog_first_byte_offset:0

repl_backlog_histlen:0

# CPU

used_cpu_sys:0.142155

used_cpu_user:0.113174

used_cpu_sys_children:0.000000

used_cpu_user_children:0.000000

# Cluster

cluster_enabled:0

# Keyspace

db0:keys=1,expires=0,avg_ttl=0

2. 编程语言方式

可以通过编程语言中的Redis客户端库来连接到Redis服务器,并执行相应的命令来查看当前数据库的名字。

1)选择合