Three popular DBMS software are ______ , _______ , _________.
15. A _______ is a unique value that identifies a row in a table.
16. Composite key is a combination of __________ columns.
17. Define : a) Primary key b)Composite Primary key c)Foreign key d)Candidate
key
18. How can you create a database using open office?
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Answer:
dbms are microsoft access ,Oracle,forpro
Explanation:
15.primary key, 16.rows,17.primary key 18. to create a new database ,click the arrow next to the new icon . in the drop down menu , select database . this opens the database wizard.you can also open the database wizard using file ,new ,database.
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