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What is called a query -execution engine? The query implementation engine takes a query evaluation plan, implements that plan, and returns the answers to the query.
can you create a database for me in oracle/sql
Differentiate OO development from structured development. Structured approach of problem solving is based upon the idea of decomposition of system into subsystem. In this appro
Can a filed occur in several field groups. Yes. But it leads to redundant data redundancy.
MySQL Database Merge Project Description: I have two databases, I need merge the data of one database into another Work to be done online right now. Payment can be done
draw er diagram using entities crop,employee,department,plot,cultivation plan,machinery,seed,fertilizer
what are the topics in data management
What are the technique to define a schema completely ? A schema is completely define by DDL and DML query language.
Answer SQL Queries to extract data from data tables and questions on mapping conceptual data models into relational data model.
The Concurrent Transactions Almost every commercial DBMS support multi-user environment. Therefore, allowing multiple transactions to proceed concurrently. The DBMS must make
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