FPDS Query Library
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Last Modified By

Identifies the user account that last changed the FPDS transaction record. It is an audit-style metadata field, typically stored as an email or username string rather than a procurement attribute.

Family: Award
Category: General
Data Type: string
Semantic Type: attribute
Mapping: flattened_fpds_xml_field
AI Confidence: high

Variable Overview

FPDS Query Variable
content__award__transactionInformation__lastModifiedBy
Title
Last Modified By
FPDS Path
award/transactionInformation/lastModifiedBy
Description
Identifies the user account that last changed the FPDS transaction record. It is an audit-style metadata field, typically stored as an email or username string rather than a procurement attribute.
Business Meaning
This field helps analysts trace record stewardship, identify which office or user process touched a record, and support data quality or lineage reviews. It can be useful when investigating unexpected record changes, update patterns, or differences across extract dates.
Example Value
MOORESC@ORO.DOE.GOV
Observed Non-Null Count
107,174,865

FPDS Compare

FPDS Query Variable
content__award__transactionInformation__lastModifiedBy
FPDS XML Path
award/transactionInformation/lastModifiedBy
Mapping Type
flattened_fpds_xml_field
Comparison Summary
FPDS Query flattens the original nested FPDS XML path 'award/transactionInformation/lastModifiedBy' into the SQL-ready variable 'content__award__transactionInformation__lastModifiedBy'.

Use Cases

  • Dictionary lookup and field explanation
  • SQL filtering and grouping
  • Analytical reporting and reusable query building

Common Usage

  • Audit trail and data lineage checks
  • Identifying update patterns by user or office
  • Debugging record changes across refreshes

Common Mistakes

  • Using it as a measure of contract performance or responsibility
  • Assuming one value always equals one individual across systems

Query Guidance

Use it for grouping, filtering, or distinct counts on record maintenance activity, for example `WHERE lastModifiedBy = 'MOORESC@ORO.DOE.GOV'` or `GROUP BY lastModifiedBy`. If matching across datasets, compare normalized values and consider `LOWER(lastModifiedBy)` to avoid case-sensitive mismatches.

SQL Examples

Preview values

SELECT
    content__award__transactionInformation__lastModifiedBy AS last_modified_by
FROM fpds.data
WHERE content__award__transactionInformation__lastModifiedBy IS NOT NULL
LIMIT 25

Top values

SELECT
    content__award__transactionInformation__lastModifiedBy AS value,
    count() AS record_count
FROM fpds.data
WHERE content__award__transactionInformation__lastModifiedBy IS NOT NULL
GROUP BY value
ORDER BY record_count DESC
LIMIT 25

Each dictionary item includes SQL-ready examples generated alongside the variable metadata, allowing immediate use in FPDS Query for filtering, aggregation, and analysis.