python
Python subjective question for competitive exam (7)
Q1..What is the difference between intermediate mode and script mode? In immediate mode, you type Python expressions into the Python Interp…
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Database
Virtual table in Database system
Virtual table in SQL in Database A view is a single table that is derived from other tables.These other tables can be base tables or previously def…
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Database
Database system Utilities in Database
Database system Utilities in Database In addition to processing the software modules most DBMS have additional utilities that help the DBA manage …
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Database
Database Management System(DBMS) Interface in Database
Database Management System(DBMS) Interface in Database Casual end users use a high level query language to specify their requests whereas programm…
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Database
Data Independence(Logical Data Independence and Physical Data independence) in Database
Data Independence(Logical Data Independence and Physical Data independence) in Database Architecture for database systems called the three schema …
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Database
Three Schema Architecture of Database system
Three Schema Architecture of Database system The goal of the three schema architecture is to separate the user application from the physical databa…
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Database
Database and Advantages of using DBMS approach
Database and Advantages of using DBMS approach Database is a collection of related data.By data mean known fact that can be recorded and that have …
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Database
Database and Characteristic of Database
Database and Characteristic of Database A database is collection of related data.Data means known facts that can be recorded and that have implicit …
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Database
Query Optimization and Using Heuristics in query optimization.
Query Optimization and Using Heuristics in query optimization. A query has many possible execution strategies and the process of choosing a suitab…
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Database
Query processing and steps to process high level query
Query processing and steps to process high level query Query processing is transformed the high level query into low level expression is called que…
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Database
Deductive Database Deduce new fact using fact and rule
Deductive Database Deduce new fact using fact and rule Deductive database use inference engine within the system can deduce new fact from the databa…
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Database
Data Model and categories of Data model
A data model a collection of concepts that can be used to describe the structure of a database provides the necessary means to achieve this abstrac…
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Database
Actor on the scene in Database
Large organization many people are involved in the design,use and maintenance of a large database with hundred of users.Identify the people whose j…
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