Explanation:The Nested Sets pattern provides a fast and efficient solution for finding subtrees but is inefficient for modifying the tree structure. 2. Point out the correct statement :
A. $regex is used for regular expression pattern matches
B. $like is used for regular expression pattern matches
C. $reg is used for regular expression pattern matches
D. All of the mentioned
Answer:A
Explanation:The Nested Sets pattern provides a fast and efficient solution for finding subtrees but is inefficient for modifying the tree structure. 2. Point out the correct statement :
A. $regex is used for regular expression pattern matches B. $like is used for regular expression pattern matches C. $reg is used for regular expression pattern matches D. All of the mentioned
Explanation:If your application needs to perform queries on the content of a field that holds text you can perform exact matches on the text. 3. Which of the following operations are atomic on document level ?