databendlabs · sundy-li · Apr 17, 2026 · Apr 30, 2026 · TCeason · Apr 20, 2026
diff --git a/docs/cn/sql-reference/10-sql-commands/00-ddl/09-catalog/_category_.json b/docs/cn/sql-reference/10-sql-commands/00-ddl/09-catalog/_category_.json
@@ -0,0 +1 @@
+{"label":"Catalog","position":9}
diff --git a/docs/cn/sql-reference/10-sql-commands/00-ddl/09-catalog/index.md b/docs/cn/sql-reference/10-sql-commands/00-ddl/09-catalog/index.md
@@ -0,0 +1,6 @@
+---
+title: Catalog
+---
+| 命令 | 描述 |
+|---------|-------------|
+| [USE CATALOG](use-catalog.md) | 切换当前 catalog |
diff --git a/docs/cn/sql-reference/10-sql-commands/00-ddl/09-catalog/use-catalog.md b/docs/cn/sql-reference/10-sql-commands/00-ddl/09-catalog/use-catalog.md
@@ -0,0 +1,12 @@
+---
+title: USE CATALOG
+sidebar_position: 1
+---
+
+为当前会话切换 catalog。
+
+## 语法
+
+```sql
+USE CATALOG <catalog_name>
+```
diff --git a/docs/cn/sql-reference/10-sql-commands/00-ddl/index.md b/docs/cn/sql-reference/10-sql-commands/00-ddl/index.md
@@ -8,6 +8,7 @@ title: DDL（Data Definition Language）命令
 
 | 组件 | 描述 |
 |-----------|-------------|
+| **[Catalog](09-catalog/index.md)** | 切换当前 catalog |
 | **[数据库](00-database/index.md)** | 创建、修改和删除数据库 |
 | **[表](01-table/index.md)** | 创建、修改和管理表 |
 | **[表版本管理 (Table Versioning)](21-table-versioning/index.md)** | 创建命名快照标签用于时间回溯 |

diff --git a/docs/en/sql-reference/10-sql-commands/00-ddl/09-catalog/_category_.json b/docs/en/sql-reference/10-sql-commands/00-ddl/09-catalog/_category_.json
@@ -0,0 +1 @@
+{"label":"Catalog","position":9}
diff --git a/docs/en/sql-reference/10-sql-commands/00-ddl/09-catalog/index.md b/docs/en/sql-reference/10-sql-commands/00-ddl/09-catalog/index.md
@@ -0,0 +1,6 @@
+---
+title: Catalog
+---
+| Command | Description |
+|---------|-------------|
+| [USE CATALOG](use-catalog.md) | Switches the current catalog |
diff --git a/docs/en/sql-reference/10-sql-commands/00-ddl/09-catalog/use-catalog.md b/docs/en/sql-reference/10-sql-commands/00-ddl/09-catalog/use-catalog.md
@@ -0,0 +1,12 @@
+---
+title: USE CATALOG
+sidebar_position: 1
+---
+
+Switches the current catalog for the session.
+
+## Syntax
+
+```sql
+USE CATALOG <catalog_name>
+```
diff --git a/docs/en/sql-reference/10-sql-commands/00-ddl/index.md b/docs/en/sql-reference/10-sql-commands/00-ddl/index.md
@@ -8,6 +8,7 @@ These topics provide reference information for the DDL (Data Definition Language
 
 | Component | Description |
 |-----------|-------------|
+| **[Catalog](09-catalog/index.md)** | Switch the current catalog |
 | **[Database](00-database/index.md)** | Create, alter, and drop databases |
 | **[Table](01-table/index.md)** | Create, alter, and manage tables |
 | **[Table Versioning](21-table-versioning/index.md)** | Create named snapshot tags for time travel |