2.3 the program Microsoft Office Access 2013Microsoft Access 2013 is a program that can be used to develop a database system which is easy for those who have experience in programming and database systems that had come before, this program will help to develop a system to quickly because there are elements to provide a development.Create system software quickly and easily through a database that collects a variety of information together and then taken to sort the system to operate as intended, such as used in the present report information and research data. If there is a need to increase capabilities to applications with other applications such as Dream weaver, FrontPage, and Visual Basic, etc. Microsoft Access is a database system in 2013 strategic relationship (Relation Datasets), because the data is stored. Need to be excluded as a group before, such as student registration information may exclude a student with an ID, a name, and one of the Group's history, while the Department code. Title and number of units of another separate activity and at the same time exclude the student enrollment list another separately, but when I print a list of all students enrolled in the three groups was both an ID, a name, a history student, came out with the registration information with which it is associated (Relation) between the groups.Those first. When searching for data by using a data group as well as other information on it with a group of students that it appears on the register will have a relationship with the student's name is there must be a list of students that people are in a list of the students before going to a new student named separately. In a sign that no individual specifications in these disobey it is very important to use a relational database system to get the most out of.Relation (Relational) means in Microsoft Access to view the data in the form of management structure. In mathematics, it is a table of data, which is the proportion between the horizontal and vertical. Relational databases (Relational) is the concept of a database, most popular in the current storage is associated with each table consisting of rows and columns, where storage format that is most well known, there already is a relational database that contains what you want to know. As follows:-The Entity (the entity that reads)-Attribute (read that attributes)-Relation (pronounced Ri-Chan or relationships)To look up things as we are taken are stored in the database, it will assume that the State is something tangible (which uses the term Entity instead.) Its specific characteristics (which uses the term "Attribute instead) and are able to have a relationship with things (which uses the term Relation represent the relationship between the Entity) The fields and riverTo store the information into a relational database, we will retain the data Entity, Attribute and Relation in the form of a table in which to store the Entity or Relation was. 1 data storage sets stored in each row by storing data for a discrete Attribute, which we will call the name of each row, that is, the data set 1 that record (Record) and each column in the table that the field (Field)It means that in a single table, there will be a record, but they will have a limited number of fields, as we have defined it in an Attribute of the Entity, and you will see that the name of the field in the same table must be unique. -Rule name field in name fields will normally run based on data collected in the field, such as customer name, customer address, etc that can be used to set the field name to Access instantly, but generally prefer to name the English field, and then enter a description of the Thai language. The naming rules are the rules, as follows: -The length of the field name can have no more than 64 characters. Both Thai and English. -In the same Table The field name must be unique. -In addition to the letters, numbers, spaces can also be used.
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