versioned_docs/version-2.1/sql-manual/sql-statements/Show-Statements/SHOW-DATABASES.md

---
{
    "title": "SHOW-DATABASES",
    "language": "en"
}
---

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## SHOW-DATABASES

### Name

SHOW DATABASES

### Description

This statement is used to display the currently visible db

grammar:

```sql
SHOW DATABASES [FROM catalog] [filter expr];
```

illustrate:
1. `SHOW DATABASES` will get all database names from current catalog.
2. `SHOW DATABASES FROM catalog` will all database names from the catalog named 'catalog'.
3. `SHOW DATABASES filter_expr` will get filtered database names from current catalog.
4. `SHOW DATABASES FROM catalog filter_expr` is not support yet.

### Example
1. Display all the database names from current catalog.

   ```sql
   SHOW DATABASES;
   ```

   ```
  +--------------------+
  | Database           |
  +--------------------+
  | test               |
  | information_schema |
  +--------------------+
   ```

2. Display all database names from the catalog named 'hms_catalog'.

   ```sql
   SHOW DATABASES from hms_catalog;
   ```

   ```
  +---------------+
  | Database      |
  +---------------+
  | default       |
  | tpch          |
  +---------------+
   ```

3. Display the filtered database names from current catalog with the expr 'like'.

   ```sql
   SHOW DATABASES like 'infor%';
   ```

   ```
  +--------------------+
  | Database           |
  +--------------------+
  | information_schema |
  +--------------------+
   ```

### Keywords

    SHOW, DATABASES

### Best Practice