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What are shortcomings in structured approach?
Structured methodology treats data and their behaviours separately, and this makes it harder to isolate changes. If changes are required in software then one has to change both data structure and algorithms and these changes subsequently need changes in the algorithms where this data structure is used as very well.
The Maximum no of key fields that can be used in a header is?? 50
How can one distinguish among different kinds of parameters? Input parameters are used to pass data to subroutines. Output parameters are used to pass data from subrout
Define database management system? Database management system (DBMS) is a set of interrelated data and a combination of programs to access those data.
Whst is logical schema ? Logical schema is the entire database.
Need an expert in ER database theoretical and modeling database system Project Description: Need an expert in ER database theoretical and modeling database systems? Skills
Types of Data fragmentation
explain in details about one to one binary relationship
What are called index-sequential files? The files that are ordered sequentially with a primary index on the search key are known as index-sequential files
What is serializability? Explain its types? The data base system must control concurrent implementation of transactions, to ensure that the data base state remains consistent.
What is the use of group by clause? Group by clause is used to apply aggregate functions to a set of tuples. The attributes given in the group by clause are used to
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