HistoryQueryResult Class Properties
- Last UpdatedAug 21, 2026
- 4 minute read
For a list of all members of this type, see HistoryQueryResult members.
| Name | Description | |
|---|---|---|
 | DataVersion | Gets or sets a value that specifies which version of the stored data is to be retrieved if the original data values have been modified in the database. |
| EndDateTime | Gets or sets the end time of the retrieval cycle for which this row is returned. |
| Filter | Gets or sets the name of the filter. |
| InterpolationType | Gets or sets a value used to determine which analog value to return at a given cycle boundary. |
| MaxStates | Gets or sets the maximum states. |
| OpcQuality | Gets or sets the basic data quality indicator associated with the data value. |
| PercentGood | Gets or sets the ratio of the number of rows that have "good" quality to the total number of rows in the retrieval cycle, expressed as a percentage in the range 0 to 100. |
| Quality | Gets or sets the basic data quality indicator associated with the data value. |
| QualityDetail | Gets or sets the internal representation of data quality used by the Wonderware Historian. |
| QualityRule | Gets or sets an enumeration that specifies whether values with certain characteristics are explicitly excluded from consideration by data retrieval. |
| Resolution | Gets or sets the sampling rate, in milliseconds, for retrieving the data in cyclic mode. |
| RetrievalMode | Gets or sets a value used to specify how retrieved data is processed before it is returned to the client. |
| SourceServer | Gets or sets the name of the server from which replication occurred for the replicated tag at the time this point was stored. |
| SourceTag | Gets or sets the name of the source tag for a replicated tag at the time this point was stored. |
| StartDateTime | Gets or sets the start time of the retrieval cycle for which this row is returned. |
| StateCalc | Gets or sets the the type of calculation to return in the StateTime column for the "value state" retrieval mode. |
| StateTime | Gets or sets the amount of time in the state for all time-in-state modes except for "Percent." |
| StringValue | Gets or sets the value of the string tag. |
| TagKey | Gets or sets the unique numerical identifier of a tag within a single Wonderware Historian. |
| TagName | Gets or sets the name of the tag for which data will be returned. |
| TimeDeadband | Gets or sets the minimum time, in milliseconds, between returned values for a single tag. |
| TimeStampRule | Gets or sets whether cyclic results are timestamped at the beginning of the cycle or at the end of the cycle. |
| Unit | Gets or sets the name of the unit. |
| Value | Gets or sets the value of the tag at the timestamp. |
| ValueDeadband | Gets or sets the percentage of full scale (range), in engineering units. |
| ValueSelector | Gets or sets the column to return for specified analog summary tags in the four basic retrieval modes: DELTA, FULL, CYCLIC, and INTERPOLATED. |