# Importing regular expressions or SQL patterns from a CSV file

Available in...

* Big Data Platform
* Cloud API Services Platform
* Cloud Big Data Platform
* Cloud Data Fabric
* Cloud Data Management Platform
* Data Fabric
* Data Management Platform
* Data Services Platform
* MDM Platform
* Real-Time Big Data Platform

## About this task

The CSV file must have specific columns including the ones listed in the table below. The CSV file may contain only a few of them.

| Column name | Description |
| --- | --- |
| Label | The label of the pattern (must not be empty) |
| Purpose | The purpose of the pattern (can be empty) |
| Description | The description of the pattern (can be empty) |
| Author | The author of the regular expression (can be empty) |
| Relative Path | The relative path to the root folder (can be empty) |
| All\_ DB\_Regexp | The regular expression applicable to all databases (can be<br>empty) |
| &lt;database name&gt;\_Regexp | The regular expression applicable to this specific database (can<br>be empty) |

## Procedure

1. In the DQ Repository tree view, expand Libraries &gt; Patterns.
2. Right-click Regex and select Import patterns.

   The Import Patterns wizard opens.

   The Import PatternsImport Patterns wizard opens. ![](https://help.qlik.com/talend/en-US/studio-user-guide/Resources/images/Import_Patterns.png)
3. Browse to the CSV file holding the regular expressions.
4. In the Duplicate patterns handling area, select:
   | Option | Description |
   | --- | --- |
   | skip existing patterns | Import only the regular expressions that do not exist in the<br>corresponding lists in the DQ Repository tree<br>view. A warning message is displayed if the imported patterns already<br>exist under the Patterns folder. |
   | rename new patterns with suffix | Identify each of the imported regular expressions with a suffix. All<br>regular expression will be imported even if they already exist under the<br>Patterns folder. |
5. Click Finish.

   A confirmation message is displayed.
6. Click OK.

   All imported regular expressions are listed under the Regex folder in the DQ Repository tree view.

## Results

The regular expressions are imported under the same folders or subfolders they had in the initial repository.

Information noteImportant: A warning icon ![](https://help.qlik.com/talend/en-US/studio-user-guide/Resources/images/warning_icon.gif) next to the name of the imported regular expression or SQL pattern in the tree view identifies that it is not correct. You must open the expression or the pattern and try to figure out what is wrong. Usually, problems come from missing quotes. Verify your regular expressions and SQL patterns and ensure that they are encapsulated in single quotes.