Answer:
ALTER TABLE Products
ADD Products_price float(5,2) DEFAULT 9.99,
ADD Adding_time datetime;
Explanation:
So at first we need to use ALTER TABLE statement, when we use this statement we also need to provide the table name. In this case, i assume it is 'Products'.
Then, as per question, we need to add two columns.
The first one is 'product_price' and it contains decimal points. So, we need to use ADD statement and give a column name like 'Prodcuts_price' and its datatype 'float' because it contains decimal or floating points. so, for 3 digits on the left and 2 digits on the right, it makes a total of 5 digits. So, we need to declare it like this. (5,2) it means a total of 5 digits and 2 after the decimal point. after that, we need to set our Default value using the DEFALUT statement. so DEFAULT 9.99. it will set the default value to 9.99 for existing products.
And for our next column, we give its a name like 'Adding_time' then it's datatype 'datetime' because it will contain date and times.
Answer:
c. The placement and relationship of elements within a picture
Explanation:
Required
What composition means?
Literally, composition means the way the elements of a picture are presented. The elements in this case constitute all lines, shapes, dots, pattern and many more.
You will notice that some of these elements will be placed over one another, some side by side, some far from one another.
So, composition means the way these elements are displayed.
<em>Hence, option (c) is correct.</em>
Answer:
D. All of the above.
Explanation:
The mutual funds can be affected by the market condition, and the investor's investment can be lost. It does not provide any assurance or any guarantee that the scheme targets or the goals are going to be achieved or will not be achieved. The investment of the fund is done later, and businesses are picked up according to the wishes of the investor who creates the pool.
And they can be a smart investment for young people, and they do contain the combination of various types of stocks. And they are commonly found in the retirement accounts. Hence, all of the above points are true about mutual funds.
Answer: Null Object pattern be useful when the absence of an object can be encapsulated by other alternatives which does not have any have any effect.
Explanation:
public interface Rectangle {
double area();
double surfaceare();
boolean isNull();
}
In the code above we have a function for null object. So in the absence of an object we have encapsulated with a method of null which does not do anything. It simplifies the use of dependencies that can be undefined.
In case of collaborator the NULL object pattern makes use of the existing collaboration instead of defining a new one.
It also enable to abstract the handling of null objects from the client so that internal details of the program are not know to outsiders.
