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What is an INDEX as defined in ORACLE?
Indexes in Oracle - Index is classically a listing of keywords accompanied through the location of information on a subject. Instead, an index can be viewed as an auxiliary table that contains two fields: the key and the location of the record of in which key. Indexes are used to improve the performance of the search operation. Indexes are not strictly essential to running Oracle, they do speed the procedure.
What is a database? Database - Basically in simple terms A database is a collection of inter related data and/or information stored so which it is available to several users
What is the most significant feature that does not directly map into programming language structures? Why? Association, since there are complex types of association, like as qu
how can apply joins on table
Define single valued and multivalued attributes. Single valued attributes: attributes with a single value for a particular entity are known as single valued attributes. Mult
What is a Built-in A notation of identity is built-into the data model or programming language and no user-supplied identifier is needed. This form of identity is used in objec
Failures and Recovery In practice various things might occur to prevent a transaction from completing. Recovery methods are used to bring database, which does not satisfy consi
Question: (a) e-Government implementations normally evolve through a multi-stage process. Describe, using appropriate examples, the stages involved in an e-Government implemen
Write a short note on QBE? Stands for "Query By Example." QBE is a feature involved along with various database applications which gives user-friendly techniques of running da
What is aggregate function? Briefly describe it? Aggregate functions are functions that take a collection of values as input and return a one value. SQL offers 5 built-in aggre
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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