Fiber is commonly classified as soluble, which dissolves in water, or insoluble, which doesn't dissolve. 1  Soluble fiber. 2  This type of fiber dissolves in water to form a gel-like material. 3  It can help lower blood cholesterol and glucose levels. It can help lower blood cholesterol and glucose levels. 2  Soluble fiber is found in oats, peas, beans, apples, citrus fruits, carrots, barley and psyllium. 3  Insoluble fiber.
What is a Key field in a Database and How should I choose one? Keys are crucial to a table structure for many reasons, some of which are identified below: 1  They ensure that each record in a table is precisely identified.  They help establish and enforce various types of integrity.
All the records are then gathered together in a table (or the file, if you're using a flat-file database). Most database programs allow, or rather require, that you give each field in your database a type. The field type indicates what type of information is going to be stored in that field.