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> Mirror of <https://developer.salesforce.com/docs/data/data-cloud-query-guide/references/dc-sql-reference/regexp-matches.html> (Salesforce, Data 360 Query Guide), read 2026-10-23. Salesforce's own page is the authority; this copy exists because that site refuses non-browser readers.

## `regexp_matches`

**Applies to:** ✅ Data 360 SQL ✅ Tableau Hyper API

Returns the captured groups of each match of a regular expression pattern against a string, as a set of rows.

*   `<string>`: The string to search.
*   `<pattern>`: The regular expression pattern to match. Must contain at least one capturing group.

*   `flags`: A string of option flags that modify matching behavior. Use `g` to return every match instead of only the first.

| Flag | Description |
| --- | --- |
| `g` | Global matching — return every match, not just the first |

Returns a set of rows, each containing a `text[]` array of the captured groups for one match.

*   Without the `g` flag, returns at most one row (the first match).
*   With the `g` flag, returns one row per match.
*   Returns no rows if `<string>` or `<pattern>` is `NULL`.

*   The pattern must contain at least one capturing group. A pattern with no capturing groups raises an error rather than returning the whole match. This differs from PostgreSQL’s `regexp_matches`, which falls back to the whole match when there are no groups.
*   Uses RE2/POSIX regular expression syntax.
*   Supports `WITH ORDINALITY` to number the returned rows. See [Set Returning Functions](https://developer.salesforce.com/docs/data/data-cloud-query-guide/references/dc-sql-reference/set-returning-functions.html#with-ordinality).
*   Returns captured groups as a `text[]` array across a set of rows. For a single scalar result instead, use [REGEXP_SUBSTR](https://developer.salesforce.com/docs/data/data-cloud-query-guide/references/dc-sql-reference/regexp-substr.html), which returns the text of the first captured group of the first match directly.
*   For detailed regex syntax, see [Regular Expression Syntax](https://developer.salesforce.com/docs/data/data-cloud-query-guide/references/dc-sql-reference/string-matching.html#regular-expression-syntax).

Extract two captured groups from the first match.

Returns one row: `["bar", "beque"]`.

Use the `g` flag to return every match, one row per match.

Returns:

| groups |
| --- |
| [“bar”, “beque”] |
| [“bazil”, “barf”] |

Returns:

| groups | ordinality |
| --- | --- |
| [“bar”, “beque”] | 1 |
| [“bazil”, “barf”] | 2 |

Raises an error because the pattern doesn’t contain a capturing group.

*   [REGEXP_SUBSTR](https://developer.salesforce.com/docs/data/data-cloud-query-guide/references/dc-sql-reference/regexp-substr.html)
*   [Set Returning Functions](https://developer.salesforce.com/docs/data/data-cloud-query-guide/references/dc-sql-reference/set-returning-functions.html)
*   [Regular Expression Syntax](https://developer.salesforce.com/docs/data/data-cloud-query-guide/references/dc-sql-reference/string-matching.html#regular-expression-syntax)


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