In a Database Management System (DBMS), a "subtract layer" is not a standard term, but it could refer to a layer or operation where data is filtered or excluded based on certain conditions. If you are referring to a layer or operation that involves subtracting or filtering data, here are some relevant tags that could be associated with it: <br /><br />1. **Data Filtering** <br />2. **Set Operations** <br />3. **SQL Queries** <br />4. **Data Exclusion** <br />5. **Difference Operation** <br />6. **Query Optimization** <br />7. **Relational Algebra** <br />8. **Data Manipulation** <br />9. **Database Operations** <br />10. **Data Subtraction** <br />11. **Conditional Filtering** <br />12. **Data Transformation** <br />13. **Database Layers** <br />14. **Data Integrity** <br />15. **Query Execution** <br /><br />If you are referring to a specific context or implementation of a "subtract layer," please provide more details so I can tailor the tags more accurately.
