Page layout

This section uses a standard page layout to document all DAL statements. This approach provides all necessary information in one convenient location. The page layout is illustrated on the following page.

The numbered page areas are used as follows:

1. The DAL statement name or Descriptor name is boxed in the upper left corner of the page. Also a title, or expanded name, appears under the boxed statement or Descriptor name.
2. The "Type" indicates the type of statement or descriptor.
3. The "Maximum Length" area indicates how many characters there are for a character string Descriptor. For a Range Definition Descriptor, the size of the number that can be specified is indicated.
4. The next section gives a full description of the statement or Descriptor, usually one or two paragraphs.
5. A model of the syntax or format is next. This is boxed for easy identification. Within the format box, the notation conventions described below are used.
6. The format box is followed by a detailed explanation of the operands as shown in the format.
7. “Usage" indicates which statement types allow you to use the Descriptor.
8. “Examples" provides specific examples of use.
9. “See Also" refers you to other related statements or Descriptors.
10. “Notes" provides details about syntax, restrictions, or other information.