# DREREPLACE

NOTE: This index action requires a POST request method.

Use the `DREREPLACE` index action to change the field values or delete fields from documents.

Use the following syntax:

    DREREPLACE?DATABASEMATCH=Databases\n\nData

## Example

    DREREPLACE?DATABASEMATCH=News+Archive HTTP/1.0\n
    Content-Length:203\n\n
    #DREDOCID 1\n
    #DREFIELDNAME Price\n
    #DREFIELDVALUE 10\n
    #DREFIELDNAME Color\n
    #DREFIELDVALUE Red\n
    #DREDOCREF http://www.example.com/dynamic/autopage442.shtml\n
    #DREFIELDNAME Country\n
    #DREFIELDVALUE UK\n
    #DREFIELDNAME Region\n
    #DREFIELDVALUE South East\n
    #DREFIELDNAME OnSale\n
    #DREDELETEFIELDVALUE Yes\n
    #DRESTATEID abcdefg-6\n
    #DREFIELDNAME XML/DOC/Fruit\n
    #DREFIELDVALUEIFNOTFOUND mango\n
    #DREDELETESINGLEFIELDVALUE apple\n
    #DREDELETEFIELD XML/DOC/DELETEME\n
    #DREENDDATANOOP\n\n

## Required Parameters

The following action parameters are required.

Parameter | Description
--- | ---
data | The data that defines the fields and values to replace or delete.

## Optional Parameters

This action accepts the following optional parameters.

Parameter | Description
--- | ---
DatabaseMatch | The databases in which to replace data.
Field | The field containing the reference specified by `#DREDOCREF`.
InsertValue | Whether to add new instances of a specified field, or replace values in existing instances.
MultipleValues | Whether to allow multiple `#DREFIELDNAME` and `#DREFIELDVALUE` pairs for the same field name.
ReplaceAllRefs | Whether to replace values in all matching documents, or only the first one.

This index action accepts the following standard index action parameters.

Parameter | Description
--- | ---
IgnoreMaxPendingItems | Whether to ignore the IndexQueueMaxPendingItems limit for this index action.
IndexUID | An identification code for any document tracking events.
NoArchive | Turn off configured archiving for the index action.
Priority | The priority for the index job.

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