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Explain in details about the f unctions of DBA ?
Submit the SQL Statements necessary to create your database according to the following guidelines: Your SQL statements should exactly mirror your ERD. All primary keys,
Consider the following relational database: STUDENT (name, student#, class, major) COURSE (course name, course#, credit hours, department) SECTION (section identifier, course#, sem
In an E-R diagram how attributes are represented ? In an E-R diagram attributes are represented in a ellipse.
Hi, Do you offer private tuition for DBMS?
What is serializability? Explain its types? The data base system must control concurrent implementation of transactions, to ensure that the data base state remains consistent.
What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
What are the disadvantages of relational data ? Disadvantages • Performance - If the number of tables among that relationships to be established are large and the tables t
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
What are the technique to define a schema completely ? A schema is completely define by DDL and DML query language.
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