Help Center/ Distributed Database Middleware/ Service Overview/ Usage Constraints/ High-risk Operations
Updated on 2022-09-15 GMT+08:00
High-risk Operations
Pay attention to the following when you use DDM:
- Do not connect to any data node for data operations to avoid deleting by mistake system catalogs or metadata.
- Do not clear system tables TBL_DRDS_TABLE and MYCAT_SEQUENCE to prevent metadata loss.
Parent topic: Usage Constraints
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