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Determine the method of Choosing Algorithms In general, most of operations are easy and have a satisfactory algorithm since description of what is to be done also shows how i
Define a relation ? Relation - A relations is a named two-dimensional table of data. Mathematically, a relation can be described as a subset of the cartesian product of a lis
Redo Logs: Any database must have minimum two redo logs. These are the rules for the database; the redo logs record all modifies to the system objects or user objects. If any type
Explain cursors in SQL? Cursors in SQL - An object used to store the output of a query for row-through-row processing through the application programs. Cursors are constructs
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational mo
Hi is anyone well versed in accounting information systems available now to help me work through an important assignment due tomorrow at noon?
Define tuple variable? Tuple variables are used for comparing two tuples in the same relation. The tuple variables are explained in the from clause by way of the as clause.
What is DML (Data Manipulation Language)? This language that enable user to access or manipulate data as organised by appropriate data model. Procedural DML or Low level: DM
Answer SQL Queries to extract data from data tables and questions on mapping conceptual data models into relational data model.
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
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