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On em_alert_history table, for some records the "Alert Valid Time End" (vt_end) field is showing in year 8994 - Support and Troubleshooting
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  • On em_alert_history table, for some records the "Alert Valid Time End" (vt_end) field is showing in year 8994
KB0814749

On em_alert_history table, for some records the "Alert Valid Time End" (vt_end) field is showing in year 8994


1485 Views Last updated : Apr 8, 2024 public Copy Permalink
KB Summary by Now Assist

Issue

On em_alert_history table, for some records the "Alert Valid Time End" (vt_end) field is showing in year 8994

Resolution

em_alert_history table is mainly used for Impact Calculation and Event Management dashboard.

Every time when there is a change to an em_alert record, an em_alert_history record is created.

We only record the start of each change on em_alert records, but not the end.

Thus vt_start is accurate, but for vt_end:

> on the latest em_alert_history for an alert, vt_end is year 8994

> on previous em_alert_history for the alert, vt_end equals to vt_start of next em_alert_history.

As em_alert_history is mainly for impact calculation, it's not recommended to use this table for other purpose to avoid confusions.


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