2019-09-27 15:44:36 +00:00
# SHOW Queries
## SHOW CREATE TABLE
```sql
2019-11-13 15:50:09 +00:00
SHOW CREATE [TEMPORARY] [TABLE|DICTIONARY] [db.]table [INTO OUTFILE filename] [FORMAT format]
2019-09-27 15:44:36 +00:00
```
2019-11-13 15:50:09 +00:00
Returns a single `String` -type 'statement' column, which contains a single value – the `CREATE` query used for creating the specified object.
2019-09-27 15:44:36 +00:00
## SHOW DATABASES {#show-databases}
```sql
SHOW DATABASES [INTO OUTFILE filename] [FORMAT format]
```
Prints a list of all databases.
This query is identical to `SELECT name FROM system.databases [INTO OUTFILE filename] [FORMAT format]` .
## SHOW PROCESSLIST
```sql
SHOW PROCESSLIST [INTO OUTFILE filename] [FORMAT format]
```
2019-11-01 14:20:28 +00:00
Outputs the content of the [system.processes ](../operations/system_tables.md#system_tables-processes ) table, that contains a list of queries that is being processed at the moment, excepting `SHOW PROCESSLIST` queries.
2019-09-27 15:44:36 +00:00
2019-11-01 14:20:28 +00:00
The `SELECT * FROM system.processes` query returns data about all the current queries.
2019-09-27 15:44:36 +00:00
Tip (execute in the console):
```bash
$ watch -n1 "clickhouse-client --query='SHOW PROCESSLIST'"
```
## SHOW TABLES
Displays a list of tables.
```sql
2020-02-12 01:23:33 +00:00
SHOW [TEMPORARY] TABLES [{FROM | IN} < db > ] [LIKE '< pattern > ' | WHERE expr] [LIMIT < N > ] [INTO OUTFILE < filename > ] [FORMAT < format > ]
2019-09-27 15:44:36 +00:00
```
If the `FROM` clause is not specified, the query returns the list of tables from the current database.
2019-11-01 14:20:28 +00:00
You can get the same results as the `SHOW TABLES` query in the following way:
2019-09-27 15:44:36 +00:00
```sql
SELECT name FROM system.tables WHERE database = < db > [AND name LIKE < pattern > ] [LIMIT < N > ] [INTO OUTFILE < filename > ] [FORMAT < format > ]
```
**Example**
The following query selects the first two rows from the list of tables in the `system` database, whose names contain `co` .
```sql
SHOW TABLES FROM system LIKE '%co%' LIMIT 2
```
```text
┌─name───────────────────────────┐
│ aggregate_function_combinators │
│ collations │
└────────────────────────────────┘
```
2019-11-13 15:50:09 +00:00
## SHOW DICTIONARIES
Displays a list of [external dictionaries ](dicts/external_dicts.md ).
```sql
SHOW DICTIONARIES [FROM < db > ] [LIKE '< pattern > '] [LIMIT < N > ] [INTO OUTFILE < filename > ] [FORMAT < format > ]
```
If the `FROM` clause is not specified, the query returns the list of dictionaries from the current database.
You can get the same results as the `SHOW DICTIONARIES` query in the following way:
```sql
SELECT name FROM system.dictionaries WHERE database = < db > [AND name LIKE < pattern > ] [LIMIT < N > ] [INTO OUTFILE < filename > ] [FORMAT < format > ]
```
**Example**
2020-02-20 06:31:06 +00:00
The following query selects the first two rows from the list of tables in the `system` database, whose names contain `reg` .
2019-11-13 15:50:09 +00:00
```sql
SHOW DICTIONARIES FROM db LIKE '%reg%' LIMIT 2
```
```text
┌─name─────────┐
│ regions │
│ region_names │
└──────────────┘
```
2020-02-20 06:31:06 +00:00
[Original article ](https://clickhouse.tech/docs/en/query_language/show/ ) <!--hide-->