Glide Record - Query records older than N days - Pull 1

Core ServiceNow APIs/GlideRecord/Get Records Older than X Days/README.md

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+# Query records older than N days efficiently
+
+## What this solves
+You often need to find records older than a threshold without loading the world into memory. This snippet:
+- Uses GlideDateTime maths to compute a date boundary
+- Uses encoded queries with index-friendly operators
+- Streams results and logs a compact summary
+
+## Where to use
+Background Script, Script Include utility, or any server-side context.
+
+## How it works
+- Compute a past date with GlideDateTime and subtract days
+- Build an encoded query like `opened_at<javascript:gs.daysAgoStart(n)` or a literal date
+- Limit fields with `addQuery` and `setLimit` when sampling
+
+## References
+- GlideRecord API  
+  https://www.servicenow.com/docs/bundle/zurich-api-reference/page/app-store/dev_portal/API_reference/GlideRecord/concept/c_GlideRecordAPI.html
+- GlideDateTime API  
+  https://www.servicenow.com/docs/bundle/zurich-api-reference/page/app-store/dev_portal/API_reference/GlideDateTime/concept/c_GlideDateTimeAPI.html
+- GlideSystem date helpers  
+  https://www.servicenow.com/docs/bundle/zurich-api-reference/page/app-store/dev_portal/API_reference/GlideSystem/reference/r_GlideSystem-date-methods.html

Core ServiceNow APIs/GlideRecord/Get Records Older than X Days/gr_older_than_n_days.js

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+// Background Script or Script Include method
+(function() {
+  var TABLE = 'incident';   // table to query
+  var FIELD = 'opened_at';  // date-time field to compare
+  var DAYS = 30;            // older than N days
+
+  var gdt = new GlideDateTime();
+  gdt.addDaysUTC(-DAYS);    // move back N days in UTC
+
+  var gr = new GlideRecord(TABLE);
+  gr.addQuery(FIELD, '<=', gdt.getValue());  // index-friendly comparison
+  gr.addActiveQuery();                        // example extra filter
+  gr.setLimit(200);                           // sample to avoid huge output
+  gr.query();
+
+  var count = 0;
+  while (gr.next()) {
+    count++;
+    // do work or collect ids
+    // gs.info(gr.getUniqueValue() + ' | ' + gr.getDisplayValue(FIELD));
+  }
+
+  gs.info(TABLE + ' older than ' + DAYS + ' days: ' + count);
+})();