docs: update tuts and docs for data masking export

content/docs/_layout.md

@@ -103,6 +103,8 @@ expand_section_list: ['Self-host', 'Get Started']
 
 ### [Access Unmasked Data](/security/data-masking/access-unmasked-data)
 
+### [Export Masked Data](/security/data-masking/export-masked-data)
+
 ## [Batch Change](/change-database/batch-change)
 
 ## [Branching](/branching)

content/docs/security/data-masking/access-unmasked-data.md

@@ -1,5 +1,5 @@
 ---
-title: Access Unmasked data
+title: Access Unmasked Data
 feature_name: DATA_MASKING
 ---
 

content/docs/security/data-masking/export-masked-data.md

@@ -0,0 +1,17 @@
+---
+title: Export Masked Data
+feature_name: DATA_MASKING
+---
+
+Data masking is applied not only to the results of queries but also to exported data.
+
+1. After querying the masked data, click **Export**.
+   ![bb-sql-editor-export](/content/docs/security/data-masking/bb-sql-editor-export.webp)
+
+2. Fill in the export rows number, choose the format and click **Confirm**. The file will start downloading.
+
+   ![bb-sql-editor-export-data](/content/docs/security/data-masking/bb-sql-editor-export-data.webp)
+
+3. Open the downloaded file, you'll see the data is masked.
+
+   ![bb-sql-editor-exported-data](/content/docs/security/data-masking/bb-sql-editor-exported-data.webp)

content/docs/tutorials/data-masking.md

@@ -19,7 +19,11 @@ It helps organizations to **protect sensitive data** from being exposed to unaut
 
 This tutorial will teach you how to set up and try out data masking in Bytebase within 30 mins.
 
-### Preparation
+## Prerequisites
+
+Before starting, make sure you have installed [Docker](https://www.docker.com/).
+
+## Preparation
 
 1. Make sure your Docker is running, and start the Bytebase Docker container with following command:
 
@@ -54,6 +58,23 @@ You may want to batch apply masking settings, for example, you want to mask all
    ![bb-sql-editor-query-employee-prod-masked](/content/docs/tutorials/step-by-step-guide-to-data-masking/bb-sql-editor-query-employee-prod-masked.webp)
    ![bb-sql-editor-query-employee-test-masked](/content/docs/tutorials/step-by-step-guide-to-data-masking/bb-sql-editor-query-employee-test-masked.webp)
 
+
+### Export data with masked columns
+Exported data is masked in the same way as query results.
+
+1. Stay on the SQL Editor after querying, and click **Export**.
+
+   ![bb-sql-editor-export](/content/docs/tutorials/step-by-step-guide-to-data-masking/bb-sql-editor-export.webp)
+
+2. Fill in the export rows number, choose the format and click **Confirm**. The file will start downloading.
+
+   ![bb-sql-editor-export-data](/content/docs/tutorials/step-by-step-guide-to-data-masking/bb-sql-editor-export-data.webp)
+
+3. Open the downloaded file, you'll see the `birth_date` is masked.
+
+   ![bb-sql-editor-exported-data](/content/docs/tutorials/step-by-step-guide-to-data-masking/bb-sql-editor-exported-data.webp)
+
+
 ### Column Masking Rule
 
 If you want to mask a specific column in a specific table, you can use **Column Masking Rule**.
@@ -84,6 +105,7 @@ What if you want to reveal the masked data to a specific user? You can grant unm
 
    ![bb-sql-editor-query-salary-prod-not-masked](/content/docs/tutorials/step-by-step-guide-to-data-masking/bb-sql-editor-query-salary-prod-not-masked.webp)
 
+
 ## Summary
 
 You can now mask data in Bytebase using two methods: use **Global Masking Rule** to batch apply masking settings, and use **Column Masking Rule** to mask a specific column in a specific table. You can also grant access to a specific user to reveal the masked data.