Description
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How does it work in the search window?
Select Create column in the search window toolbar, then select the Timestamp operation. It only requires one argument, either an integer or a string column.
Argument | Data type | More information |
|---|---|---|
Epoch / Date definition mandatory | integer or string | In the conversion of an epoch date integer into a timestamp, the number introduced will be treated as milliseconds so you need to make sure it actually refers to milliseconds. If you are given a date expressed in seconds, you need to transform it into milliseconds, otherwise the result will not correspond to the real date. You can add three zeros to the end of it using the following LINQ:
Once the epoch date is expressed in milliseconds, you can apply the |
To convert a date field from string to timestamp, the date must follow the format: Year-Month-Day Hour:Minute:Second.Millisecond (i.e. 2019-09-09 09:52:49.986). If your date string doesn't follow the required format, you should instead use the parse date operation to convert it to a timestamp. |
The data type of the values in the new column is timestamp.
Example
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The examples in this article use values in a data table generated from the following CSV file.
If you want to try the example for yourself, download the file and upload it to your domain by clicking Data upload in the navigation panel. Name the new table After receiving the confirmation message, you can access the table from the Finder, selecting my → upload → sample → data. When you upload data from a file, all the information is included in a single column called message. To split the values into different columns, you can use the Split operation. Click Toggle Query Editor in the search window toolbar and paste the following LINQ query to save time:
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Use the operator select... as... and add the operation syntax to create the new column. These are the valid formats of the operation:
timestamp(integer)timestamp(string)
Example
You can copy the following LINQ script and try the above example on the my.upload.sample.data table. Keep in mind that you must download and upload the file provided before to your Devo domain.
| Code Block |
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from my.upload.sample.data
select split(message, ";", 7) as EpochStr,
int(EpochStr) as EpochInt,
timestamp(EpochInt) as EpochTimestamp |