Dropping graphs

Dropping (deleting) graphs.

Graphs can be dropped (deleted) . All schema and data for the graph will be lost, so be sure that you intend to remove a graph before using the steps below. Best practice is to truncate a graph before removing it, for better performance.

Note: Graphs use many tables in the storage system. If a graph is no longer in use, drop it to ensure that you stay within the acceptable limit of the number of tables.

Procedure

A system command is required to drop a graph. If using the Gremlin console, the graph traversal alias can be cleared, to be certain no action effects the currently selected graph in the Gremlin console:
```
:remote config alias reset
```
```
==>Aliases cleared
```
Optional: If unsure of the graph name, examine what graphs exist.
Truncate the graph before dropping it:
```
system.graph('food').truncate()
```
```
==>OK
```
Drop the desired graph by running the drop() command:
```
system.graph('food').drop()
```
Use the ifExists() step to check if a graph exists before dropping.
```
==>OK
```
Recommended: Truncate the graph:
```
system.graph('food').truncate()
```
Use the ifExists() step to check if a graph exists before truncating.
```
==>OK
```