The one-to-many type of (1:M) connection is conveniently imposed in the relational model by placing the foreign crucial of the "1" side in the table of the "many" side as a main crucial.

You are watching: In a natural join, the column on which the join was made occurs twice in the new table.

False

You can think of a table as a persistent depiction of a logical relation.

True

DBMSs use indexes for many type of different functions.

True

Numeric information are information on which you can perform systematic arithmetic measures.

True

RDBMSs enforce integrity rules automatically.

True

A null is created once you push the Go into essential or the Tab vital to move to the next enattempt without making a prior enattempt of any kind of kind.

True

The DIFFERENCE operator subtracts one table from the other.

True

Tables within a database share widespread qualities that allow the tables to be connected together.

True

Character information deserve to contain any character or symbol intfinished for mathematical manipulation.

False

In a relational design, if A determines B, C, and D, you write A = B, C, D.

False

The principle of determicountry is distinct to the database setting.

False

A foreign essential have to exist in both tables that have a partnership.

False

Since the relational design supplies attribute worths to establish relationships among tables, many type of database customers properly assume that the term relation refers to such relationships.

False

The DIVIDE operation offers one single-column table (e.g., column "a") as the divisor and one two-column table (e.g., columns "a" and also "b") as the dividend.

True

As rare as 1:1 relationships must be, specific problems absolutely call for their usage.

True

A left outer sign up with on tables CUSTOMER and AGENT yields all of the rows in the CUSTOMER table, including those that execute not have a equivalent value in the AGENT table.

True

Current relational database software application mostly provides just a system magazine (and also not a file dictionary).

True

Depending on the sophistication of the application development software program, nulls deserve to create difficulties when functions such as COUNT, AVERAGE, and also SUM are supplied.

True

The order of the rows and also columns is crucial to the DBMS.

False

In a natural join, the column on which the join was made occurs twice in the new table.

False

If the attribute (B) is functionally dependent on a compowebsite vital (A) yet not on any subcollection of that composite crucial, the attribute (B) is fully functionally dependent on (A).

True

A data dictionary is periodically described as "the database designer’s database" because it documents the architecture decisions around tables and their structures.

True

Referential and also entity integrity are two names for the same point.

False

The useful definition of taking the logical see of a database is that it serves as a reminder of the simple file idea of information storage.

True

Tables have to have actually the same attribute characteristics (the columns and also domains have to be compatible) to be used in a UNION.

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True

Only a solitary attribute, not multiple qualities, have the right to specify useful dependence.