Answer:to add a column to existing table.
to rename any existing column.
to change datatype of any column or to modify its size.
to drop a column from the table.
Explanation:
hope this help
Answer:
session state
Explanation:
Session state in the context of NET is a method keep track of a user session. Session states allow a developer to store data about a user as he or she navigates through ASP.NET web pages.
Answer:
Option B is the correct answer for the above question.
Explanation:
- The data warehouse is a collection of large data or a database that includes historical and operational or current data. This database can be used to make the decisions for the prospects of the organization.
- The above question asked about to select the database which can collect the historical and operational data from various source. That type of database is a data warehouse that is described above. Hence option B is correct while the other is not because:-
- Option a states about data model which is used to define the database structure.
- Option c states about the relational database which is used to collect only current data.
- Option d states about the DBMS which is used to manage the relational database.
It is called vulnerabilities
"Avoiding sarcasm" and "using appropriate language" make professional online communication more effective. Not all people immediately understand one's sarcasm especially someone you recently knew. They may misinterpret the message you're giving so better say something straightforward to make yourself clear. A place where people can easily gather, the internet can make people against you if you're displaying rude and foul comments. Failure to communicate will then follow. If you follow these two guidelines, you're going to be saved from all the troubles.
