Earn $100 Online Daily. Work From Home. Click Here

What is the correct answer?


Which of the following relational algebra operations do not require the participating tables to be union-compatible?

A. Union

B. Intersection

C. Difference

D. Join

Related Questions

Which of the following is not comparison operator? The common column is eliminated in _____is a full form of SQL. HSAM stands for ………. Which normal form is considered adequate for normal relational database… The language that requires a user to specify the data to be retrieved… In an ER model,_____ is described in the database by storing its data. The part of a database management system which ensures that the data remains… The fact that all employees of a particular organization should not have… A DBMS is a ____ user if at most one user can use the system and is mostly… For using a specific database …………… command… Key to represent relationship between tables is called SQL server stores index information in the _____system table Relational Algebra does not have Union operator is a : Cascading rollback is avoided in all protocol except The normal form that is not necessarily dependency preserving is Which two files are used during operation of the DBMS? _____ command can be used to modify a column in a table A transaction is in state after the final statement has been executed. In a multi-user database, if two users wish to update the same record… DROP is a statement in SQL. The size of a data item is called its _______, which can be a field of… _____ First proposed the process of normalization. DBMS helps achieve Given the following relation S(SNO,SNAME,CITY) write a query to update… The clause in SQL that specifies that the query result should be sorted… A relational database developer refers to a record as DBMS is a collection of _____ that enables user to create and maintain… Which of the following is not a consequence of non-normalized database?