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# SingleValueExt

Diese Funktion liefert einen spezifizierten Wert zurück (z.B. Monatswert). Mit Formatierungsoptionen.

## Syntax

string **SingleValueExt** (string dataSourcekey, DateTime timestamp, string interval, string aggregation, int decimalPlaces)

## Parameter

<table><thead><tr><th width="250"></th><th></th></tr></thead><tbody><tr><td><pre><code>dataSourcekey:
</code></pre></td><td>Der Datenquellen-Schlüssel (Kurzname) einer Messgröße.</td></tr><tr><td><pre><code>timestamp:
</code></pre></td><td>Ein Zeitstempel.</td></tr><tr><td><pre><code>interval:
</code></pre></td><td>Ein Intervallwert oder -typ. (process, day, week, month, year).</td></tr><tr><td><pre><code>aggregation:
</code></pre></td><td>Ein Aggregationstyp. (val, pSum usw.).</td></tr><tr><td><pre><code>decimalPlaces:
</code></pre></td><td>Die Anzahl der Nachkommastellen.</td></tr></tbody></table>

## Rückgabewert

Gibt einen numerischen Wert zurück.

\
Beispiel

```
SingleValueExt("J5001DE.TA",GetQueryTimeRange("Messwerte").From,"month","val",3)
```


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