DA Entry Date

(a limit field)

20000407 in da

da=20000407

The DA field indicates the date, in YYYYMMDD format, when the data was entered into the NLM system as an "in-process" record. If desired, use the Completion Date (CD) field, the Update Code (UD) field, or the Revision Date (DR) field to limit your search to other date-specific information.

You can search the DA field with the following operators, as well as with in and =:

< less than,

such as da<20000407

> greater than,

such as da>20000407

<= less than or equal to,

such as da<=20000407

>= greater than or equal to,

such as da>=20000407

- within a range,

such as da=20000101-20001201

Browsing Entry Dates

As an alternative to searching with the field label, you can browse dates and search for them directly from the Entry Date Field-Specific Index. This field-specific index contains only dates available in the database. Results of a search in this index display in the DA field.