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What are the three classes of SQL expression?
SQL expression consists of three clauses:
Select
From
Where
project on dbms
how to prepare a data dictionary for online examination system for certified courses?
This project requires you to create a database design. Your design will be documented in a set of Entity-Relationship diagrams. Draw a set of Entity-Relationship diagrams to mode
write an SQL statement to create the database in MYSQL server
What is recursive closure? Why is it not possible to describe this operation in relational algebra? Recursive closure is applied to recursive relationship. An instance of rec
What is recovery management component? Ensuring durability is the responsibility of a software component of the base system known as the recovery management component.
1. Which model is used to store data in tree structures Ans: Hierarchical model is used to store data in tree structures
construct a B+ tree for the following set of key value (2,3,5,7,11,19,23,29,31) in ascending order where the pointers that will fit in one node is as follows:A. four B. six C. eigh
Draw and explain the three level architecture of the database system? A DBMS gives three levels of data is said to follow three-level architecture. The trget of the three-schem
You want to implement following relationships when designing tables. How would you do it? a.) One-to-one b.) One-to-many c.) Many-to-many a.) One-to-One relationship -
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