What is the concept of field?

What is the concept of field?

Field, In physics, a region in which each point is affected by a force. ... An electric field surrounds an electric charge; when another charged particle is placed in that region, it experiences an electric force that either attracts or repels it.

What are the three types of field?

Symmetries of fields

  • scalar fields (such as temperature) whose values are given by a single variable at each point of space. ...
  • vector fields (such as the magnitude and direction of the force at each point in a magnetic field) which are specified by attaching a vector to each point of space.

Which one is the default data type of a field?


When you create a new field in access what data type does it automatically go to?

When you create a new table in Datasheet view, Access automatically creates a primary key for you and assigns it a field name of ID and the AutoNumber data type. In Design view, you can change or remove the primary key, or set the primary key for a table that doesn't already have one.

What determines a table's sort order?

Here you can access and discuss Multiple choice questions and answers for various compitative exams and interviews....Discussion Forum.
Que.What determines a table's sort order?
b.Index field
c.Field order
d.Primary key
Answer:Index field

Which object is used to create a form?

Discussion Forum
Que.Which object is used to create a form?
b.Tables only
c.Tables and reports
d.Queries and reports
Answer:Tables and Queries

How do you describe a property in MS Access?

A property is an attribute that defines an object's appearance, behavior, or characteristics. For example, a car's properties would include its color, make and model, and shape. A property for a numeric field might be the number of decimal places displayed or the maximum number of characters a field can hold.

How do you set field properties?

To edit a field's properties:

  1. Click the table name in the table bar of your app.
  2. Click Settings in the page bar, then click Fields on the Settings page.
  3. Click the field name to access its properties.
  4. Click the name of the field that you want to modify. ...
  5. Make the necessary changes, and then click Save.

What is required property of a field?

You can use the Required property to specify whether a value is required in a field. If this property is set to Yes, when you enter data in a record, you must enter a value in the field or in any control bound to the field, and the value cannot be Null.

What do you understand by Field property?

The properties of a field describe the characteristics and behavior of data added to that field. A field's data type is the most important property because it determines what kind of data the field can store.

Which property makes data entry in a field mandatory?

Required property makes it mandatory to store value in that field during data entry . Required is your answer.

What is field value access?

You add a default value to a table field or form control whenever you want Access to enter a value in a new record automatically. ... Typically, you add a default value to your table fields. You add the value by opening the table in Design view and then entering a value in the Default Value property for the field.

What is the use of Validation Rule property of a field?

A validation rule is one way to restrict input in a table field or a control (such as a text box) on a form. Validation text lets you provide a message to help users who input data that is not valid.

What is default value in MS Access?

The Default Value is the value that a new record starts out with. You can change it if you want, but Access will create new records with this value. You can set the Default Value to a static value. For example, if most of your customers are from New York, you could set the Default Value for a State field to �NY�.

What is the meaning of default value for a field as found in field properties?

Answer: OptionButton Object. Specifies a String value that is automatically entered in a field when a new record is created. For example, in an Addresses table you can set the default value for the City field to New York.

How do you create a lookup field?

Create a lookup field in Design View

  1. Open the table in Design View.
  2. In the first available empty row, click a cell in the Field Name column, and then type a field name for the lookup field.
  3. Click in the Data Type column for that row, click the arrow and then, in the drop-down list, select Lookup Wizard.