We’ve updated a demo that support displaying parent-child relational data in form of tree grid. It is done by simple configuration on PHP Grid Framework where you define the parent and child fields of same table. For example in following example, EmployeeId is ID field and ReportsTo is Parent Relation field that makes this tree grid. This framework already support variety of database connections e.g. SQL Server, Oracle, DB2, Postgres, Mysql etc so you can have this Tree-grid in all supported databases.
Tree Grid Sample: