Table Fields

Table Fields

The following definitions are required in the ABAP Dictionary for a table field:

Field name: The field name can have a maximum of 16 places and may contain letters, digits and underscores. The field name must begin with a letter.

Key flag: determines whether the field should belong to the table key.

Data type: data type of the field in the ABAP Dictionary.

Field length: number of valid positions in the field.

Decimal places: number of places after the decimal point, specifying numeric data types.

Short text: short text describing the meaning of the field.

You can also include the fields of structures in the table as a substructure.

Assignment of the Data Type, Field Length and Short Text

You can assign the data type, length and short text in different ways:

In the table definition, you can assign a data type and field length to the field with Direct type entry. In this case you can enter the short text for the field directly.

You can assign a data element to the field. The data type and field length are determined from the domain of the data element. The short description of the data element is assigned to the field as a short text.

Other Assignment Options

Check table: An input check for the field can be defined with a foreign key.

Search help assignment: A search help can be assigned to a field. This search help is available for the field in all screen fields when you press the input help (F4).

Reference Field and Reference Table: You must specify the table field in which the corresponding unit of measure or currency can be found for fields containing quantities (data type QUAN) or currency amounts (data type CURR).

See also:

Creating Fields in Tables