Answer:
A Red Black Tree is a type of self-balancing(BST) in this tree ,each node is red or black colored. The red black tree meets all the properties of the binary search tree, but some additional properties have been added to a Red Black Tree.
A Red-Black tree's height is O(Logn) where (n is the tree's amount of nodes).
In a red-black tree with black height k
The maximum number of internal nodes is 
.
The smallest possible number is 
.
Answer:
The answer is "Block scope".
Explanation:
In the programming, the scope is a code, in which it provides the variable ability to exist and not be retrieved beyond variable. In this, the variables could be defined in 3 locations, that can be described as follows:
- Inside a method or the block, which is also known as a local variable.
- Outside of the method scope, which is also known as a global variable.
- Defining parameters for functions known as formal parameters.
The SQL is used to change a table's structure by:
The use of the SQL ALTER TABLE command.
<h3>How is it done?</h3>
The SQL ALTER TABLE command is known to be that which is often used to alter the structure of an existing table.
It is known to help one to be able to add or delete columns, make or destroy indexes, alter the kinds of existing columns, rename columns or the table itself.
Note that It can also be used to alter the comment for any kind of table and type of the table therein.
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Answer:
ctrl+p or find the print button on the page
