SHOW SQL 문

SHOW [CREATE] TABLE | TEMPORARY TABLE | DICTIONARY | VIEW | DATABASE [db.]table|view [INTO OUTFILE filename] [FORMAT format]

SHOW DATABASES [[NOT] LIKE | ILIKE '<pattern>'] [LIMIT <N>] [INTO OUTFILE filename] [FORMAT format]

SHOW DATABASES LIKE '%de%'

┌─name────┐
│ default │
└─────────┘

SHOW DATABASES ILIKE '%DE%'

┌─name────┐
│ default │
└─────────┘

SHOW DATABASES NOT LIKE '%de%'

┌─name───────────────────────────┐
│ _temporary_and_external_tables │
│ system                         │
│ test                           │
│ tutorial                       │
└────────────────────────────────┘

SHOW DATABASES LIMIT 2

┌─name───────────────────────────┐
│ _temporary_and_external_tables │
│ default                        │
└────────────────────────────────┘

SHOW [FULL] [TEMPORARY] TABLES [{FROM | IN} <db>] [[NOT] LIKE | ILIKE '<pattern>'] [LIMIT <N>] [INTO OUTFILE <filename>] [FORMAT <format>]

SHOW TABLES FROM system LIKE '%user%'

┌─name─────────────┐
│ user_directories │
│ users            │
└──────────────────┘

SHOW TABLES FROM system ILIKE '%USER%'

┌─name─────────────┐
│ user_directories │
│ users            │
└──────────────────┘

SHOW TABLES FROM system NOT LIKE '%s%'

┌─name─────────┐
│ metric_log   │
│ metric_log_0 │
│ metric_log_1 │
└──────────────┘

SHOW TABLES FROM system LIMIT 2

┌─name───────────────────────────┐
│ aggregate_function_combinators │
│ asynchronous_metric_log        │
└────────────────────────────────┘

SHOW [EXTENDED] [FULL] COLUMNS {FROM | IN} <table> [{FROM | IN} <db>] [{[NOT] {LIKE | ILIKE} '<pattern>' | WHERE <expr>}] [LIMIT <N>] [INTO
OUTFILE <filename>] [FORMAT <format>]

SHOW COLUMNS FROM 'orders' LIKE 'delivery_%'

┌─field───────────┬─type─────┬─null─┬─key─────┬─default─┬─extra─┐
│ delivery_date   │ DateTime │    0 │ PRI SOR │ ᴺᵁᴸᴸ    │       │
│ delivery_status │ Bool     │    0 │         │ ᴺᵁᴸᴸ    │       │
└─────────────────┴──────────┴──────┴─────────┴─────────┴───────┘

SHOW DICTIONARIES [FROM <db>] [LIKE '<pattern>'] [LIMIT <N>] [INTO OUTFILE <filename>] [FORMAT <format>]

SHOW DICTIONARIES FROM db LIKE '%reg%' LIMIT 2

┌─name─────────┐
│ regions      │
│ region_names │
└──────────────┘

SHOW [EXTENDED] {INDEX | INDEXES | INDICES | KEYS } {FROM | IN} <table> [{FROM | IN} <db>] [WHERE <expr>] [INTO OUTFILE <filename>] [FORMAT <format>]

SHOW INDEX FROM 'tbl'

┌─table─┬─non_unique─┬─key_name─┬─seq_in_index─┬─column_name─┬─collation─┬─cardinality─┬─sub_part─┬─packed─┬─null─┬─index_type───┬─comment─┬─index_comment─┬─visible─┬─expression─┐
│ tbl   │          1 │ blf_idx  │ 1            │ 1           │ ᴺᵁᴸᴸ      │ 0           │ ᴺᵁᴸᴸ     │ ᴺᵁᴸᴸ   │ ᴺᵁᴸᴸ │ BLOOM_FILTER │         │               │ YES     │ d, b       │
│ tbl   │          1 │ mm1_idx  │ 1            │ 1           │ ᴺᵁᴸᴸ      │ 0           │ ᴺᵁᴸᴸ     │ ᴺᵁᴸᴸ   │ ᴺᵁᴸᴸ │ MINMAX       │         │               │ YES     │ a, c, d    │
│ tbl   │          1 │ mm2_idx  │ 1            │ 1           │ ᴺᵁᴸᴸ      │ 0           │ ᴺᵁᴸᴸ     │ ᴺᵁᴸᴸ   │ ᴺᵁᴸᴸ │ MINMAX       │         │               │ YES     │ c, d, e    │
│ tbl   │          1 │ PRIMARY  │ 1            │ c           │ A         │ 0           │ ᴺᵁᴸᴸ     │ ᴺᵁᴸᴸ   │ ᴺᵁᴸᴸ │ PRIMARY      │         │               │ YES     │            │
│ tbl   │          1 │ PRIMARY  │ 2            │ a           │ A         │ 0           │ ᴺᵁᴸᴸ     │ ᴺᵁᴸᴸ   │ ᴺᵁᴸᴸ │ PRIMARY      │         │               │ YES     │            │
│ tbl   │          1 │ set_idx  │ 1            │ 1           │ ᴺᵁᴸᴸ      │ 0           │ ᴺᵁᴸᴸ     │ ᴺᵁᴸᴸ   │ ᴺᵁᴸᴸ │ SET          │         │               │ YES     │ e          │
└───────┴────────────┴──────────┴──────────────┴─────────────┴───────────┴─────────────┴──────────┴────────┴──────┴──────────────┴─────────┴───────────────┴─────────┴────────────┘

SHOW PROCESSLIST [INTO OUTFILE filename] [FORMAT format]

SHOW GRANTS [FOR user1 [, user2 ...]] [WITH IMPLICIT] [FINAL]

SHOW CREATE USER [name1 [, name2 ...] | CURRENT_USER]

SHOW CREATE ROLE name1 [, name2 ...]

SHOW CREATE [ROW] POLICY name ON [database1.]table1 [, [database2.]table2 ...]

SHOW CREATE QUOTA [name1 [, name2 ...] | CURRENT]

SHOW CREATE [SETTINGS] PROFILE name1 [, name2 ...]

SHOW USERS

SHOW [CURRENT|ENABLED] ROLES

SHOW [SETTINGS] PROFILES

SHOW [ROW] POLICIES [ON [db.]table]

SHOW QUOTAS

SHOW [CURRENT] QUOTA

SHOW ACCESS

SHOW CLUSTER '<name>'
SHOW CLUSTERS [[NOT] LIKE|ILIKE '<pattern>'] [LIMIT <N>]

SHOW CLUSTERS;

┌─cluster──────────────────────────────────────┐
│ test_cluster_two_shards                      │
│ test_cluster_two_shards_internal_replication │
│ test_cluster_two_shards_localhost            │
│ test_shard_localhost                         │
│ test_shard_localhost_secure                  │
│ test_unavailable_shard                       │
└──────────────────────────────────────────────┘

SHOW CLUSTERS LIKE 'test%' LIMIT 1;

┌─cluster─────────────────┐
│ test_cluster_two_shards │
└─────────────────────────┘

SHOW CLUSTER 'test_shard_localhost' FORMAT Vertical;

행 1:
──────
cluster:                 test_shard_localhost
shard_num:               1
replica_num:             1
host_name:               localhost
host_address:            127.0.0.1
port:                    9000

SHOW [CHANGED] SETTINGS LIKE|ILIKE <name>

SHOW SETTINGS LIKE 'send_timeout';

┌─name─────────┬─type────┬─value─┐
│ send_timeout │ Seconds │ 300   │
└──────────────┴─────────┴───────┘

SHOW SETTINGS ILIKE '%CONNECT_timeout%'

┌─name────────────────────────────────────┬─type─────────┬─value─┐
│ connect_timeout                         │ Seconds      │ 10    │
│ connect_timeout_with_failover_ms        │ Milliseconds │ 50    │
│ connect_timeout_with_failover_secure_ms │ Milliseconds │ 100   │
└─────────────────────────────────────────┴──────────────┴───────┘

SHOW CHANGED SETTINGS ILIKE '%MEMORY%'

┌─name─────────────┬─type───┬─value───────┐
│ max_memory_usage │ UInt64 │ 10000000000 │
└──────────────────┴────────┴─────────────┘

SHOW SETTING <name>

SHOW FILESYSTEM CACHES

┌─Caches────┐
│ s3_cache  │
└───────────┘

SHOW ENGINES [INTO OUTFILE filename] [FORMAT format]

SHOW FUNCTIONS [LIKE | ILIKE '<pattern>']

SHOW MERGES [[NOT] LIKE|ILIKE '<table_name_pattern>'] [LIMIT <N>]

SHOW MERGES;

┌─table──────┬─database─┬─estimate_complete─┬─elapsed─┬─progress─┬─is_mutation─┬─size_compressed─┬─memory_usage─┐
│ your_table │ default  │              0.14 │    0.36 │    73.01 │           0 │        5.40 MiB │    10.25 MiB │
└────────────┴──────────┴───────────────────┴─────────┴──────────┴─────────────┴─────────────────┴──────────────┘

SHOW MERGES LIKE 'your_t%' LIMIT 1;

┌─table──────┬─database─┬─estimate_complete─┬─elapsed─┬─progress─┬─is_mutation─┬─size_compressed─┬─memory_usage─┐
│ your_table │ default  │              0.14 │    0.36 │    73.01 │           0 │        5.40 MiB │    10.25 MiB │
└────────────┴──────────┴───────────────────┴─────────┴──────────┴─────────────┴─────────────────┴──────────────┘

SHOW CREATE MASKING POLICY name ON [database.]table