What are the benefits and disadvantages of an index?
An index can help speed up row retrieval if less than ten percent of the table is included in the query results. However, when data changes are made, such as adding or deleting rows, the index must be updated which can slow down DML operations.
You might also like to view...
The central objective of communication is the transmission of meaning
Indicate whether the statement is true or false
Criminal law spells out the duties that exist between persons or between citizens and their governments
a. True b. False Indicate whether the statement is true or false
Insurance is not a good option for managing risk when
A) the probability of loss is very small and the expected loss is small. B) the benefits outweigh the costs. C) you want to protect your existing and future net worth. D) there is a likelihood that an event will cause a large financial loss.
A content loyalty metric is answered by which of the following questions?
a. Who is interacting with and utilizing the brand-generated and consumer-generated content? b. Who is adding to or changing your content by continuing the conversation with response posts? c. How many consumers have subscribed to branded content with RSS feeds? d. What is the comment-to-post ratio? e. Is the number of friends-to-brand profiles growing?