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PI Web API Reference

Update Option (Core Services)

Indicates how to treat duplicate values, when supported by the data reference. Client applications are responsible for understanding how these options interact with their attributes' data references.

  • Replace

    Add the value. If values exist at the specified time, one of them will be overwritten.

  • Insert

    Add the value, preserving any values that exist at the specified time.

  • NoReplace

    Add the value only if no values exist at the specified time.

  • ReplaceOnly

    If a value exists at the specified time, overwrite it. If one does not exist, ignore the provided value.

  • InsertNoCompression

    Insert the value without compression.

  • Remove

    Remove the value if one exists at the specified time.

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