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learn-build-service-prod merged 4 commits into from
Oct 14, 2025
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Repo sync for protected branch #2762

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4a49ba0
Updated extract example
Oct 14, 2025
d2836b4
Merge pull request #7172 from dyadav7/user/deepyadav/extract
prmerger-automator[bot] Oct 14, 2025
4ca6ff1
Merge pull request #7173 from MicrosoftDocs/main
learn-build-service-prod[bot] Oct 14, 2025
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Merging changes synced from https://github.com/MicrosoftDocs/dataexpl…
Oct 14, 2025
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24 changes: 15 additions & 9 deletions data-explorer/kusto/query/extract-function.md
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Original file line number Diff line number Diff line change
Expand Up @@ -40,21 +40,27 @@ The following example extract the username, email, age from the string. The [reg

:::moniker range="azure-data-explorer"
> [!div class="nextstepaction"]
> <a href="https://dataexplorer.azure.com/clusters/help/databases/Samples?query=H4sIAAAAAAAAA8tJLVEISa0oUbBVUAotTi2yUvDKz8hzyU%2FVUXDNTczMsVLIAvJT8lMdUisScwtyUvWS83N1FBzTU60UjCyVrLkKijLzShRAWv0Sc1OBxgANK0pMLtGAGqcRHacTq62ppKNgqAO2SVOHC2yyZwqSYgclqG0aMcHamjooqoF2oaiMSdEGyhtA5QFR4bA2wQAAAA%3D%3D" target="_blank">Run the query</a>
> <a href="https://dataexplorer.azure.com/clusters/help/databases/Samples?query=H4sIAAAAAAAAA22OPwvCMBDF93yKI1NCD%2FEPDlaECjro4KJOrUpsjlJIqrRBOvjhTW0EBW857vF%2B954hBxetnIIFdMupqyFxoNbF0Li6rArJUsaPDdUxbJWlBmFtVWnClVCr7N3QIL9ZhGVBMYxnHD%2FESj1KHfTJlLPTnPVpT%2BYjqNLQ%2BXb%2Bk8%2F3Sq1yJwIr0jOeIskRRghdI4kM%2Bnk32OgvJuGhlcj2kcR%2FkC%2FxA2Q68rZhsL0AlTcJ%2BAkBAAA%3D" target="_blank">Run the query</a>
::: moniker-end

```kusto
let Text = "User: JohnDoe, Email: [email protected], Age: 29";
print UserName = extract("User: ([^,]+)", 1, Text),
EmailId = extract(@"Email: (\S+),", 1, Text),
Age = extract(@"\d+", 0, Text)
let _data = datatable(Text: string)
[
"User: James, Email: [email protected], Age: 29",
"User: David, Age: 35"
];
_data |
extend UserName = extract("User: ([^,]+)", 1, Text),
EmailId = extract(@"Email: (\S+),", 1, Text),
Age = extract(@"\d+", 0, Text)
```

**Output**

| UserName | EmailId | Age |
| --- | --- | --- |
| JohnDoe | [email protected] | 29 |
| Text | `UserName` | `EmailId` | `Age` |
| -- | --- | --- | --- |
| User: James, Email: [email protected], Age: 29 | James | [email protected] | 29 |
| User: David, Age: 35 | David | | 35 |

The following example extracts the month from the string `Dates` and returns a table with the date string and the month as int type.

Expand All @@ -77,7 +83,7 @@ Dates

**Output**

| DateString | Month |
| DateString | `Month` |
| --- | --- |
| 15-12-2024 | 12 |
| 21-07-2023 | 7 |
Expand Down