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how can apply joins on table
Northwind Pty Ltd sells a variety of food products throughout the world. They want to use the reporting features of SAP''s Business Information Warehouse to better understand thei
Extend your CREATE TABLE statement from problem 3 with referential integrity constraints. Updates and deletes on related rows are restricted. 6. From examination of the sample data
Gaps in sequence values can happen when: - A rollback happens that is when a statement changes are not accepted. - When the system crashes - When a sequence i
What are audit trails? An audit trail is a log of all alters to the database along with information like which user performed the change and when the alter was performed.
Where does view definition stored? A view definition is permanently stored as part of the database.
what is specialization?
Explain the term High level DML? High level DML A high-level or non-procedural DML permit the user to specify what data is needed without specifying how it is to be acquired.
1. Which model is used to store data in tree structures Ans: Hierarchical model is used to store data in tree structures
What is the use of RAID? A variety of disk-organization methods, collectively called redundant arrays of independent disks are used to better the performance and reliability.
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