What are the differences between UNION and JOINS?
Answer Posted / saravakumar
A join selects columns from 2 or more tables. A union
selects rows.
| Is This Answer Correct ? | 7 Yes | 0 No |
Post New Answer View All Answers
What is it unwise to create wide clustered index keys?
As a general practice, it is recommended to have dbo be the owner of all database objects however, in your database you find number of tables owned by a user other than dbo, how could you fix this?
What is the difference between index seek vs. Index scan?
what is the main function of a query parameter?
sql database suspect We have a sql database that is showing as suspect. How can we recover?
How much does sql server 2016 cost?
What is cte (common table expression)?
Explain syntax for viewing trigger?
What is the command used to recompile the stored procedure at run time?
What are the limitations in ssrs on sql server express edition?
What are the disadvantages of indexes?
Describe the functionalities that views support.
What do you mean by 'normalization'?
What are entities and relationships?
What are different types of schemas?