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Determine the Disadvantages of file based systems
Some of the disadvantages of file based systems are like this:
Determine Which is not a consequence of concurrent operations? Ans: Update anomaly.
Create an index for the table Client, field CLIENT_NO of Q ? Command: CREATE INDEX client_client_no ON client(client_no);
Security: Data not needed by local applications is not stored at the site, therefore no unnecessary security violations may exist. But how can we carry out fragmentation? Fragm
Define Query by Example QBE is a query language relies upon domain calculus and has two dimensional syntax. The queries are written in the horizontal and vertical dimensions of
What is relational model feature? A relational model feature is much more data independence than some other database models.
Consider the following relations: BRANCH( bno, street, area, city, pcode, Tel_no, Fax_no) STAFF( Sno, Fname, Lname, address, position , salary, bno) Express the subsequent qu
external and internal mapping with examples
why older data models are being replaced by new data models.
Hello.I have database access assignment which consist of creation Form, Subform, Calculation, Macros
First Normal Form and second normal form First Normal Form (1NF) A relation is said to be in 1NF if it having no non-atomic values and each row can give a unique combinat
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