# Fields string table

![Fields string table in Replace in string](/files/jSprsUZT40UL0ujhgqXA)

You can specify the replacement string and select options pertaining to it in the following table.

| Column                 | Description                                                                                                              |
| ---------------------- | ------------------------------------------------------------------------------------------------------------------------ |
| **In stream field**    | Specify the field to replace from the PDI input stream. Click **Get Fields** to add all fields from the input stream(s). |
| **Out stream field**   | Specify the new field name to output to the PDI stream.                                                                  |
| **use RegEx**          | Select **Y** (Yes) or **N** (No) to indicate whether to use a regular expression to search for values.                   |
| **Search**             | Specify whether to search for matched values of this string.                                                             |
| **Replace with**       | Specify the string to replace the matched value.                                                                         |
| **Set empty string?**  | Select **Y** (Yes) or **N** (No) to indicate whether to replace null values with empty strings.                          |
| **Replace with field** | Specify a field value that will be used to replace the matched value.                                                    |
| **Whole Word**         | Select **Y** (Yes) or **N** (No) to indicate whether to replace the entire word of the matched value.                    |
| **Case sensitive**     | Select **Y** (Yes) or **N** (No) to indicate whether the search is case sensitive.                                       |
| **Is Unicode**         | Select **Y** (Yes) or **N** (No) to indicate whether the search value is a sequence of Unicode characters.               |

Use **Get Fields** to add all fields from the PDI input stream.


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