| 摘要 |
A centralized dependency management table for saving the dependency information about all nodes in a netlike data management system. When a user activates, modifies or deletes one node, the system will search the centralized dependency table for the dependency information about the target node and its related nodes. The system will determine whether it is necessary to check the dependency relationship or fields of a node according to the dependency relationships, and will determine whether a maintenance operation is allowed accordingly.
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