Table , from Latin tabula, is a flat piece of wood or other rigid material . If the table is very thick, it is called plank . There are tables of different types and with different uses, but it is always an object of surface flat.
In carpentry, tables are used as support or shelving . In ancient times, the table was used for the healing of cheeses, while nowadays they can also be used to support or cut food.
The tables are also used in the sport . The first surfboards they were made with wood or cattail, materials that allowed to float but were not very resistant. Today, they are manufactured with synthetic materials or low density polypropylene plastics, making them lighter and easier to handle.
The snowboards On the other hand, they are usually constructed with wood and laminated with fiber of glass. These artifacts are used to glide on snow with sporting or recreational intentions.
A table is also a list or catalog of things sorted in succession or with some relation to each other . Two well-known examples are the multiplication tables and the periodic table of the elements.
In the field of computing, the notion of a table is related to databases and spreadsheets, and they usually include various fields (corresponding to the name of the class or type of data to be collected) and records (stored data).
In this context, the programs Excel and Access, both belonging to Office (the suite room Microsoft office), are the most popular, despite the growing success of open source alternatives that fight for first place since the late 90s. The first serves to make spreadsheets and the second, bases of data.
Tables may look like a system closed and precarious of organize the information; but when combined with concepts such as references (widely used in large databases), the level of complexity grows exponentially. If, for example, a company wishes to store the contact information of its customers, it is natural to think of a design that contains fields such as "First Name", "Last Name", "Phone" and "Email".
The first problem with this structure is that many clients can have the same last name, and even the same name. Unless the rest of the fields are mandatory, accessing a particular record can be difficult; that's why it is always advisable to use a key unique identification, a number that is automatically assigned to each new line, and never repeated, since it increases by one each time a new entry is made.
So far, computer science does not seem to offer so many advantages over paper, except for the power of searches. However, if the company wanted to account for the purchases of its customers, it would be necessary to create a new table, which could store "Transaction number", "Product", "Amount" and, the fundamental point of any relationship, a field that link with the customer table: "Customer number", the unique key mentioned above.
The relationship between tables has no limits, in that a table can be related to as many as desired, and provides a level of flexibility and very high data access. There are three possible models: one by one, from one to several and from several to several.
In the game of chess or checkers, tables is the tie between competitors (when none of the players can take an advantage and win the game).