Documentation for Licensees of NLM Databases Derived from LocatorPlus
This content is no longer maintained or updated as of January 1, 2024. If you need assistance, please contact NLM Support.
CatfilePlus in NLMXML Update/Documentation Chart for 2023:
| File Name | Date on Server | File Size | New or Modified Records* | Record Deletes** | Special Notifications |
|---|---|---|---|---|---|
| catplus.20231201.xml | 12/01/2023 | 9.85MB | 2,680 | 232 | N/A |
| catplus.20231101.xml | 11/01/2023 | 7.76MB | 2,098 | 26 | N/A |
| catplus.20231001.xml | 10/01/2023 | 9.95MB | 2,494 | 14 | N/A |
| catplus.20230901.xml | 09/01/2023 | 10.1MB | 2,512 | 11 | N/A |
| catplus.20230801.xml | 08/01/2023 | 30.6MB | 7,210 | 32 | N/A |
| catplus.20230701.xml | 07/01/2023 | 10.1MB | 2,629 | 25 | N/A |
| catplus.20230601.xml | 06/01/2023 | 34.1MB | 7,529 | 44 | N/A |
| catplus.20230501.xml | 05/01/2023 | 8.10MB | 2,043 | 12 | N/A |
| catplus.20230401.xml | 04/01/2023 | 10.1MB | 2,939 | 25 | N/A |
| catplus.20230301.xml | 03/01/2023 | 23.8MB | 5,949 | 81 | N/A |
| catplus.20230201.xml | 02/01/2023 | 18.1MB | 4,321 | 10 | N/A |
| catplus.20230101.xml | 01/01/2023 | 12.5MB | 3,505 | 17 | N/A |
| catplusbase1of4.2023.xml | 12/12/2022 | 1.3GB | 388,829 | 0 | Base pull has 4 parts -- Load all 4 parts in order -- Base pull contains records through Dec.12, 2022 |
| catplusbase2of4.2023.xml | 12/12/2022 | 1.3GB | 387,258 | 0 | N/A |
| catplusbase3of4.2023.xml | 12/12/2022 | 1.3GB | 384,366 | 0 | N/A |
| catplusbase4of4.2023.xml | 12/12/2022 | 904MB | 276,066 | 0 | N/A |
| catplus.20221201.xml | 12/01/2022 | 7.50MB | 2,076 | 44 | Contains records from Nov. 01 thru Dec, 01, 2022 |
CatfilePlus in MARCXML Update/Documentation Chart for 2023:
| File Name | Date on Server | File Size | New or Modified Records* | Record Deletes** | Special Notifications |
|---|---|---|---|---|---|
| catplus.20231201.marcxml.xml | 12/01/2022 | 11.9MB | 2,680 | 232 | N/A |
| catplus.20231101.marcxml.xml | 11/01/2022 | 9.11MB | 2,098 | 26 | N/A |
| catplus.20231001.marcxml.xml | 10/01/2023 | 10.5MB | 2,494 | 14 | N/A |
| catplus.20230901.marcxml.xml | 09/01/2023 | 11.9MB | 2,512 | 11 | N/A |
| catplus.20230801.marcxml.xml | 08/01/2023 | 35.6MB | 7,210 | 32 | N/A |
| catplus.20230701.marcxml.xml | 07/01/2023 | 11.9MB | 2,629 | 25 | N/A |
| catplus.20230601.marcxml.xml | 06/01/2023 | 36.5MB | 7,529 | 44 | N/A |
| catplus.20230501.marcxml.xml | 05/01/2023 | 9.43MB | 2,043 | 12 | N/A |
| catplus.20230401.marcxml.xml | 04/01/2023 | 11.7MB | 2,939 | 25 | N/A |
| catplus.20230301.marcxml.xml | 03/01/2023 | 27.7MB | 5,949 | 81 | N/A |
| catplus.20230201.marcxml.xml | 02/01/2023 | 20.2MB | 4,321 | 10 | N/A |
| catplus.20230101.marcxml.xml | 01/01/2023 | 14.2MB | 3,505 | 17 | N/A |
| catplusbase1of4.2023.marcxml | 12/12/2022 | 1.4GB | 388,829 | 0 | Base pull has 4 parts -- Load all 4 parts in order -- Base pull contains records through Dec.12, 2022 |
| catplusbase2of4.2023.marcxml | 12/12/2022 | 1.4GB | 387,258 | 0 | N/A |
| catplusbase3of4.2023.marcxml | 12/12/2022 | 1.4GB | 384,364 | 2 | N/A |
| catplusbase4of4.2023.marcxml | 12/12/2022 | 995MB | 276,066 | 0 | N/A |
| catplus.20221201.marcxml.xml | 12/01/2022 | 8.76MB | 2,076 | 44 | Contains records from Nov. 01 thru Dec, 01, 2022 |
Serfile in NLMXML Update/Documentation Chart for 2023:
| File Name | Date on Server | File Size | New or Modified Records* | Record Deletes** | Special Notifications |
|---|---|---|---|---|---|
| serfile.20231201.xml | 12/01/2023 | 3.02MB | 855 | 232 | N/A |
| serfile.20231101.xml | 11/01/2023 | 1.65MB | 434 | 26 | N/A |
| serfile.20231001.xml | 10/01/2023 | 1.43MB | 371 | 14 | N/A |
| serfile.20230901.xml | 09/01/2023 | 1.78MB | 452 | 11 | N/A |
| serfile.20230801.xml | 08/01/2023 | 25.1MB | 5,703 | 32 | N/A |
| serfile.20230701.xml | 07/01/2023 | 2.75MB | 676 | 25 | N/A |
| serfile.20230601.xml | 06/01/2023 | 1.96MB | 516 | 44 | N/A |
| serfile.20230501.xml | 05/01/2023 | 1.51MB | 407 | 12 | N/A |
| serfile.20230401.xml | 04/01/2023 | 2.04MB | 540 | 25 | N/A |
| serfile.20230301.xml | 03/01/2023 | 2.19MB | 559 | 81 | N/A |
| serfile.20230201.xml | 02/01/2023 | 5.98MB | 1,436 | 10 | N/A |
| serfile.20230102.xml | 01/02/2023 | 1.47MB | 384 | 17 | N/A |
| serfilebase.2023.xml | 12/12/2022 | 459MB | 148,118 | 1 | Base pull is one file -- Base pull contains records Dec. 12, 2022 |
| serfile.20221201.xml | 12/01/2022 | 1.15MB | 318 | 44 | Contains records from Nov. 01 thru Dec. 01, 2022 |
Serfile in MARCXML Update/Documentation Chart for 2023:
| File Name | Date on Server | File Size | New or Modified Records* | Record Deletes** | Special Notifications |
|---|---|---|---|---|---|
| serfile.20231201.marcxml.xml | 12/01/2023 | 4.27MB | 855 | 232 | N/A |
| serfile.20231101.marcxml.xml | 11/01/2023 | 2.11MB | 434 | 26 | N/A |
| serfile.20231001.marcxml.xml | 10/01/2023 | 1.83MB | 371 | 14 | N/A |
| serfile.20230901.marcxml.xml | 09/01/2023 | 2.16MB | 452 | 11 | N/A |
| serfile.20230801.marcxml.xml | 08/01/2023 | 29.3MB | 5,703 | 32 | N/A |
| serfile.20230701.marcxml.xml | 07/01/2023 | 3.33MB | 676 | 25 | N/A |
| serfile.20230601.marcxml.xml | 06/01/2023 | 2.49MB | 516 | 44 | N/A |
| serfile.20230501.marcxml.xml | 05/01/2023 | 1.97MB | 407 | 12 | N/A |
| serfile.20230401.marcxml.xml | 04/01/2023 | 2.58MB | 540 | 25 | N/A |
| serfile.20230301.marcxml.xml | 03/01/2023 | 2.96MB | 559 | 81 | N/A |
| serfile.20230201.marcxml.xml | 02/01/2023 | 7.16MB | 1,436 | 10 | N/A |
| serfile.20230101.marcxml.xml | 01/01/2023 | 1.89MB | 384 | 17 | N/A |
| serfilebase.2023.marcxml | 12/12/2022 | 529MB | 148,118 | 1 | Base pull is one file -- Base pull contains records Dec. 12, 2022 |
| serfile.20221201.marcxml.xml | 12/01/2022 | 1.58MB | 318 | 44 | Contains records from Nov. 01 thru Dec, 01, 2022 |
Due to constraints in how CatfilePlus in XML and Serfile in XML files are created from LocatorPlus records:
* No distinction is made between New and Modified records.
** Licensees will occasionally receive record deletes for records that they never received, or have already deleted. Additionally, licensees should be aware that records which were previously deleted may be reinstated and could reappear as new records, with the SAME record identifier in <NlmUniqueID> as was used earlier.
For these reasons, it is NOT possible for licensees to calculate the total number of unique records which comprise Catfile in XML or Serfile in XML after any particular update by performing addition and subtraction calculations against the number of records in the base pull.
*** Update files containing the previous (one) month's data normally will be placed on the server by the second working day of the month. Full base pulls will normally occur only once/year, when the MeSH vocabulary and other 'year-end' maintenance has been performed and new DTDs go into effect.
Last Reviewed: January 16, 2024