What is the correct answer?


In a relational schema, each tuple is divided into fields called

A. Relations

B. Queries

C. Domains

D. All of the above

Correct Answer :

A. Relations

Related Questions

If a transaction T has obtained an exclusive lock on item Q, then T can The ______ indexes are forced to store only record IDs in the data structure… A ____ key specifies a uniqueness constraint that no two distinct tuples… In E-R Diagram total participation is represented by It is an abstraction through which relationships are treated as higher… Which of the following ensures the atomicity of the transaction? Maximum height of a B+ tree of order m with n key values is The fact that all employees of a particular organization should not have… As per equivalence rules for query transformation, selection operation… The rule that a value of a foreign key must appear as a value of some… The clause alter table in SQL can be used to DROP is a statement in SQL. Relationships among relationships can be represented in an-E-R model using The set of all values that can be taken by the attribute is called as… A data type or format is specified for each _________ Use of UNIQUE while defining an attribute of a table in SQL means that… Cascading rollback is avoided in all protocol except ______contains information that defines valid values that are stored in… A table can have only one SQL server stores index information in the _____system table The middleware databases in which the business rules act are applicable… _____clause is an additional filter that is applied to the result. Which of the following is true for network structure? What is data integrity? DBMS is a collection of _____ that enables user to create and maintain… The ______ key of a relation is the attribute (column) or collection of… ______defines the structure of a relation which consists of a fixed set… The drawback of shadow paging technique are Which normal form is considered adequate for normal relational database… Precedence graphs help to find a