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Explain I command in QBE ?
I : It is the command in QBE that is used to insert tuple (s) into the database
Data Warehousing & Mining 1. What is the concept of knowledge discovery in database? 2. Describe the following types of Multidimensional Data Models. • Stars, Snowflakes and
what is stracture of dabms
Give the Introduction of OBJECT DESIGN Strategies which are selected during system design are carried out in object-oriented design. In this procedure, objects which are identi
The PROJECT operation The project operation is used to choose the records with specified attributes as discarding the others based on some related criteria. This is denotes as ∏
Concatenation operator Example : Printing name and job as one string as column name employees: SELECT ENAME||JOB "EMPLOYEES" FROM EMP;
What is view in SQL? How is it defined? Any relation that is not part of the logical model, but is made visible to a user as a virtual relation is known as a view. We descri
folding method and mid square method using visual basic
difference between internal schema and external schema in DBMS
What are the technique to define a schema completely ? A schema is completely define by DDL and DML query language.
What are the advantages of creating a table from existing table?
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