Answer:
Check the explanation
Explanation:
(a) There will be a need for the database to support a comparatively complex and complicated hierarchical internal record structure that may vary for each record. Column store NoSQL DBMS
(b)The key requirements for the database are to access a specific record structure as quickly as possible without any concern regarding the internal structure of the record. Key value store NoSQL DBMS
(c) The data are specifically well suited to be organized as a network of connections amid the data items. Graph Base NoSQL DBMS
(d) It is essential that the DBMS offers quick access to each of the records by a key value, but, in addition, it has to also allow easy access to the components of each record. Document store NoSQL DBMS
That if something happens such as some one gets cancer you can pay for it or if you lose your job you can still have time to react and get a new job
Documents. Note that electronic document is a type of media too.
Answer:
If you code a column list in an INSERT statement that includes a column that’s defined with a default value, you can insert the default value for that column by coding the DEFAULT keyword in the VALUES clause of the INSERT statement.
Explanation:
SQL permits insert the DEFAULT value on the columns when is required. Suppose the column has a NULL constraint(values on this column can not be set in null), then you can pass the default value.
For example:
INSERT INTO table(field1, field2, field3, field4) VALUES (10, DEFAULT, 20, DEFAULT)
