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Why is database redesign necessary?
Database redesign is essential for two reasons. First, redesign is essential both to fix mistakes made during the initial database design. Second, redesign is needed to adapt the database to changes in system requirements. Such alters are common because information systems and organizations do not just influence each other they make each other. Thus, new information systems cause alters in systems requirements.
What is difference among mysql_connect and mysql_pconnect? Mysql_connect() opens a new connection to the database while mysql_pconnect() opens persistent connection to the data
how to write tables and drow E-R diagrams for hosiptal management system and how to normalize and cardinalities?
What is an index? An index is a structure that helps to place desired records of a relation quickly, without probing all records.
What are the key features of Oracle? Key features of Oracle are as follows: • Read Consistency • Concurrency • Locking Mechanisms • Quiesce Database • RAC • Portability
Though all the ABAP/4 Dictionary Structures that exists in the structure of the LDB, being described in Database Program, we are explaining the Dictionary Structures in the Report.
Safe Banking is a Canberra based credit union, which has several branches around Canberra and Queanbeyan. YOU have taken over Safe Banking. YOU need to create a database that organ
Define the five basic operators of relational algebra? Five basic operators of relational algebra are: 1. Union (∪∪∪∪) - Selects tuples which are in either P or Q or in both
Need for Client Server Computing- Client/Server (C/S) architecture includes running the application on multiple machines in which every machine with its component software tackles
Distributed Database Management System
These are interactive interfaces, graphical that hide the difficulty of the DBMS and query language behind an intuitive, simple to understand, and convenient interface. This permit
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