neo4j中的数据建模

Question

i'm new to neo4j trying to model a database the database contain 4 table it is in csv format table 1(details of employee) employees( emp_no ,birth_date ,first_name, last_name ,gender, hire_date)

table 2(detail about who was maneger of which dept) dept_maneger(emp_no ,dept_no ,from_date, to_date)

table 3 (detail about department) departments(dept_no, dept_name)

table 4(detail about which employe belongs to which dept) dept_emp(emp_no ,dept_no ,from_date ,to_date)

i created the nodes but i want to make a relation ships between department node employee node using from date and to date . how can i do that.

Answer 1

You provided no information about your neo4j data model. Here is an example of simple data model that you could use.

You can use nodes labelled Employee (for all employees, including managers) and Department . For example:

(e:Employee {id: 987, birthdate: 222, firstName: 'Fred', lastName: 'Smith', gender: 'male', hired: 12})
(manager:Employee {id: 221, birthdate: 111, firstName: 'George', lastName: 'Jones', gender: 'male', hired: 10})
(d:Department {id: 324, name: 'Accounting'})

Here are examples of relationships (with the type WORKS_IN ):

(e)-[:WORKS_IN {from: 123, to: 456}]->(d)
(manager)-[:WORKS_IN {from: 234, to: 567, isManager: true}]->(d)

The start and end dates for all positions are stored in the WORKS_IN relationships. If a person works for the same department as a non-manager and then becomes a manager, s/he would have a new WORKS_IN relationship added with the isManager=true property (and the date of the promotion as the from value).