SystemDB
In Neo4j 4.0 the concept of multi-database was introduced. There’s now a database called system
which contains some
internal information, e.g. configured permissions. Those can be exposed by APOC.
- WARN
-
Do not rely on the data structures within
system
database. They are a non-public implementation details of Neo4j and might change within minor release updates.
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isType example
CALL apoc.systemdb.graph() YIELD nodes, relationships RETURN *;
CALL apoc.systemdb.execute('SHOW DATABASES') YIELD row RETURN row.name as dbName;
CALL apoc.systemdb.execute(["CREATE USER foo SET PASSWORD 'test'", "GRANT ROLE myRole TO foo"])