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How is Oracle used in PL/SQL? Define the features of process and how they are defined? PL/SQL - PL/SQL is Oracle's procedural language (PL) superset of the Structured
Types of data independence Data independence can be classified into the following two types: Physical Data Independence: This means that for any change made in the physi
Before we talk about the relational model in more detail, let us first define some very basic terms used in this model. Tuple Every row in a table shows a record and is cal
ALTER TABLE Command : This command is used for variation of existing structure of the table in the given situation: When a new column is to be added to the table structure.
Construct a clean ans concise ER diagram for the database indicating the cardinality mapping for Employee management syatem
In E-R Diagram how relationship type is represented ? In E-R Diagram relationship type is represented as a Diamond.
projects?
define attribute inheritance with example?
How does a query tree represent a relational algebra expression? Discuss any three rules for query optimisation, giving example as to when should each rule be applied. Ans
In Oracle what is system global area and how is it organized? The SGA is a collection of shared memory fields which along with the Oracle processes constitute an Oracle instan
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