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.
For information for dropping Classic graphs, see Dropping Graphs in DSE Graph version 6.7.
Procedure
- Optional: If unsure of the graph name, examine what graphs exist.
-
Truncate the graph before dropping it:
system.graph('food'). ifExists(). truncate()
Use the
ifExists()
step to check if a graph exists before truncating.==>OK
-
Drop the desired graph by running the
drop()
command:system.graph('food'). ifExists(). drop()
Use theifExists()
step to check if a graph exists before dropping.==>OK