A non-key field can be any field in the table that is not the primary key. During the process of normalisation identifying non-key fields is important, as they and other fields may be moved and new tables created. Foreign keys will be left in the table.
the number that never ends and never repeats the same format is called non terminating non recurring decimals
non-coplanar
They are the same thing a non-terminating is a non-repeating decimal
Equivilent means same fractions.
if they do not equal the same sum or multiplication or what ever
A relation is in second normal form (2NF) if any of the following conditions apply: The primary key consists of only one attribute No non-primary key attribute exists in the relation Every non-primary key attribute is functionally dependent on the full set of primary key attributes
Your non-primary mouse key.
A non-key attribute is an attribute in a relation that is not part of the primary key. These attributes are functionally dependent on the primary key and are subject to normalization to reduce data redundancy and improve database consistency.
A Primary Key is a unique identifier for each record in a database table and is used to enforce entity integrity. A Secondary Key is a non-unique index that is used for querying and organizing data efficiently but does not have the constraint of uniqueness.
Use Default and Not NULL
NO
primary key: primary creates a clustered index on the column and it doesn't allow null values. unique key: unique key creates non clustered index by default.it allows "one null value". foreign key: A foreign key (FK) is a column or combination of columns used to establish and enforce a link between the data in two tables. Fore More information, you can visit this website:http://www.iyogibusiness.com
primary and non primary
primary and non primary
the super key is the windows key (the flag) in non-windows OS
A candidate key is a unique key that can uniquely identify each record in a database table, whereas a secondary key is a non-unique key used for data retrieval and indexing purposes. Candidate keys can be chosen as the primary key for the table, while secondary keys provide alternate ways to access and organize the data.
primary airport''s control tower.