The question is incomplete as there is no options given;
the complete question with options is;
<span>Which column or columns in each table should be defined as the primary key?
</span>a.Orders: OrderID; OrderLineItems: OrderID, OrderSequence, andProductID; Products: ProductID and ProductName
b.Orders: OrderID; OrderLineItems: OrderID and OrderSequence;Products: ProductID
c.Orders: OrderID and OrderDate; OrderLineItems: OrderID andOrderSequence; Products: ProductID
d.Orders: OrderID; OrderLineItems: OrderID; Products: ProductID
Answer:
the correct option from the given options is, "b",Orders: OrderID; OrderLineItems: OrderID and OrderSequence;Products: ProductID
when you are going to create a primary key, <span>In Object Explorer, right-click the table to which you want to add a unique constraint, and then click Design. In Table Designer tab, click the row selector for the database </span>column<span> you want to define as the </span>primary key<span>.</span>
Answer:
PNG
Explanation:
Convertible or not :
First of all you should know that you can't make a JPEG image transparent. You should use a format that allows transparency, like GIF or PNG TIFF.
PNG VS GIF VS TIFF :
When we talk about which one to use there are two things that comes in mind.
1. Flexibility :
JPG has Millions of colors to use. it is used for Still Images Photography
GIF has Maximum 256 colors and is used for Simple animations
, Graphics with flat colors Graphics without gradients
PNG-8 has Maximum 256 colors used for Similar to GIF with Better transparency but no animation and known Great for icons
PNG-24 has Unlimited colors Similar to PNG-8 Handles still images and transparency
SVG has Vector with Unlimited colors Graphics/logos for web
Retina/high-dpi screens
2. Size
Size depends on the colors you will use.
Answer:
01010110
Explanation:
The binary value of V is 01010110