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In E-R Diagram how relationship type is represented ? In E-R Diagram relationship type is represented as a Diamond.
In this practical assignment, we will run through a complete database application development cycle, starting with the schema design, from an initial data import to database applic
What is the use of sub queries? A sub query is a select-from-where expression that is nested with in another query. A common use of sub queries is to do tests for set membershi
waht is a repeating group?
Niles Video Inc. wants to create a website for online sales of movies (DVD and videotapes). People will be allowed to register as customers on the website and to update their store
When It is better to use files than a DBMS? It is better to use files than a DBMS when Multiple users wish to access the data.
What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
Which operation is used if we are interested in only certain columns of a table? PROJECTION operation is used if we are interested in only certain columns of a table.
Conflicting Operations in Schedule: The three simple ways of interleaved instruction implement of transactions T1 and T2. Please note that in the following tables the first col
Differance between DDL and SDL? DDL and SDL - The data definition language (DDL) is used through DBA and database designers to describe internal schema, conceptual schema, and
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