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The REGEXREPLACE function returns a string where the first regular expression match is replaced.
An Azure Cosmos DB system function that performs a regular expression replacement for the first match.
Syntax
REGEXREPLACE(<subject>, <pattern>, <replacement>, [<options>])
Arguments
| Description | |
|---|---|
subject |
The string to search. |
pattern |
The regular expression pattern to match. |
replacement |
The string that replaces the first match. |
options |
Optional. A string of regular expression flags: i (ignore case), m (multiline), s (singleline or dotall), and x (ignore pattern whitespace). |
Return types
Returns a string expression.
Examples
This section contains examples of how to use this query language construct.
Replace the first regular expression match
In this example, the REGEXREPLACE function replaces only the first numeric sequence.
SELECT VALUE {
replaceFirst: REGEXREPLACE("A12-B34-C56", "[0-9]+", "#")
}
[
{
"replaceFirst": "A#-B34-C56"
}
]
Remarks
- This function doesn't use the index.