diff --git a/docs/v0.8/en/reference/sql/information-schema/schemata.md b/docs/v0.8/en/reference/sql/information-schema/schemata.md
index 468f89afa..b4fdc9e80 100644
--- a/docs/v0.8/en/reference/sql/information-schema/schemata.md
+++ b/docs/v0.8/en/reference/sql/information-schema/schemata.md
@@ -18,8 +18,8 @@ The output is as follows:
 | default_character_set_name | String |      | NO   |         | FIELD         |
 | default_collation_name     | String |      | NO   |         | FIELD         |
 | sql_path                   | String |      | YES  |         | FIELD         |
+| options                    | String |      | YES  |         | FIELD         |
 +----------------------------+--------+------+------+---------+---------------+
-5 rows in set (0.00 sec)
 ```
 
 ```sql
@@ -27,14 +27,14 @@ SELECT * FROM SCHEMATA;
 ```
 
 ```sql
-+--------------+--------------------+----------------------------+------------------------+----------+
-| catalog_name | schema_name        | default_character_set_name | default_collation_name | sql_path |
-+--------------+--------------------+----------------------------+------------------------+----------+
-| greptime     | greptime_private   | utf8                       | utf8_bin               | NULL     |
-| greptime     | information_schema | utf8                       | utf8_bin               | NULL     |
-| greptime     | public             | utf8                       | utf8_bin               | NULL     |
-+--------------+--------------------+----------------------------+------------------------+----------+
-3 rows in set (0.01 sec)
++--------------+--------------------+----------------------------+------------------------+----------+-------------+
+| catalog_name | schema_name        | default_character_set_name | default_collation_name | sql_path | options     |
++--------------+--------------------+----------------------------+------------------------+----------+-------------+
+| greptime     | greptime_private   | utf8                       | utf8_bin               | NULL     |             |
+| greptime     | information_schema | utf8                       | utf8_bin               | NULL     |             |
+| greptime     | public             | utf8                       | utf8_bin               | NULL     |             |
+| greptime     | test               | utf8                       | utf8_bin               | NULL     | ttl='7days' |
++--------------+--------------------+----------------------------+------------------------+----------+-------------+
 ```
 
 Fields in the `SCHEMATA` table are described as follows:
@@ -44,3 +44,4 @@ Fields in the `SCHEMATA` table are described as follows:
 - `default_character_set_name`: The default character set of the database.
 - `default_collation_name`: The default collation of the database.
 - `sql_path`: The value of this item is always `NULL`.
+- `options`:  Extending column in GreptimeDB. The database options.
diff --git a/docs/v0.8/en/reference/sql/show.md b/docs/v0.8/en/reference/sql/show.md
index eba9e8275..c97b20f4a 100644
--- a/docs/v0.8/en/reference/sql/show.md
+++ b/docs/v0.8/en/reference/sql/show.md
@@ -7,7 +7,7 @@ The `SHOW` keyword provides database and table information.
 Show all databases:
 
 ```sql
-SHOW DATABASES;
+SHOW [FULL] DATABASES;
 ```
 
 ```sql
@@ -31,6 +31,24 @@ Show databases by `where` expr:
 SHOW DATABASES WHERE Schemas='test_public_schema';
 ```
 
+Show all databases with options:
+
+```sql
+create database with(ttl='7d');
+SHOW FULL DATABASES;
+```
+
+```sql
++--------------------+-------------+
+| Database           | Options     |
++--------------------+-------------+
+| greptime_private   |             |
+| information_schema |             |
+| public             |             |
+| test               | ttl='7days' |
++--------------------+-------------+
+```
+
 ## SHOW TABLES
 
 Show all tables:
diff --git a/docs/v0.8/en/summary.yml b/docs/v0.8/en/summary.yml
index 807c91b9d..0bdda7999 100644
--- a/docs/v0.8/en/summary.yml
+++ b/docs/v0.8/en/summary.yml
@@ -75,7 +75,9 @@
     - admin
     - configuration
     - capacity-plan
-    - back-up-&-restore-data
+    - Disaster-Recovery:
+      - overview
+      - back-up-&-restore-data
     - kubernetes
     - gtctl
     - run-on-android
diff --git a/docs/v0.8/en/user-guide/operations/admin.md b/docs/v0.8/en/user-guide/operations/admin.md
index 354987199..2208ce2cd 100644
--- a/docs/v0.8/en/user-guide/operations/admin.md
+++ b/docs/v0.8/en/user-guide/operations/admin.md
@@ -7,7 +7,7 @@ This document addresses strategies and practices used in the operation of Grepti
 * [Installation](/getting-started/installation/overview.md) for GreptimeDB and the [g-t-control](./gtctl.md) command line tool.
 * Database Configuration, please read the [Configuration](./configuration.md) reference.
 * [Monitoring](./monitoring.md) and [Tracing](./tracing.md) for GreptimeDB.
-* GreptimeDB [Backup & Restore methods](./back-up-\&-restore-data.md).
+* GreptimeDB [Disaster Recovery](./disaster-recovery/overview.md).
 
 ### Runtime information
 
diff --git a/docs/v0.8/en/user-guide/operations/back-up-&-restore-data.md b/docs/v0.8/en/user-guide/operations/disaster-recovery/back-up-&-restore-data.md
similarity index 100%
rename from docs/v0.8/en/user-guide/operations/back-up-&-restore-data.md
rename to docs/v0.8/en/user-guide/operations/disaster-recovery/back-up-&-restore-data.md
diff --git a/docs/v0.8/en/user-guide/operations/disaster-recovery/overview.md b/docs/v0.8/en/user-guide/operations/disaster-recovery/overview.md
new file mode 100644
index 000000000..bbf8186b5
--- /dev/null
+++ b/docs/v0.8/en/user-guide/operations/disaster-recovery/overview.md
@@ -0,0 +1,3 @@
+# Overview
+
+* [Backup & restore data](./back-up-&-restore-data.md)
\ No newline at end of file
diff --git a/docs/v0.8/en/user-guide/operations/overview.md b/docs/v0.8/en/user-guide/operations/overview.md
index 8f05d624a..a22941a66 100644
--- a/docs/v0.8/en/user-guide/operations/overview.md
+++ b/docs/v0.8/en/user-guide/operations/overview.md
@@ -1,11 +1,13 @@
 # Operations
 
+* [Administration](./admin.md)
 * [Configuration](./configuration.md)
+* [Capacity Plan](./capacity-plan.md) 
+* [Disaster Recovery](./disaster-recovery/overview.md)
 * [Kubernetes](./kubernetes.md)
 * [gtctl](./gtctl.md)
+* [Running on Android](./run-on-android.md)
 * [Monitoring](./monitoring.md)
 * [Tracing](./tracing.md)
-<!-- * [Import data](./import-data.md)
-* [Export data](./export-data.md)
-* [Backup & restore data](./back-up-&-restore-data.md)
-* [Capacity planning](./capacity-planning.md) -->
\ No newline at end of file
+* [Remote WAL](./remote-wal/quick-start.md)
+* [Region Migration](./region-migration.md)
diff --git a/docs/v0.8/zh/reference/sql/information-schema/schemata.md b/docs/v0.8/zh/reference/sql/information-schema/schemata.md
index 30592eef0..2e24f414c 100644
--- a/docs/v0.8/zh/reference/sql/information-schema/schemata.md
+++ b/docs/v0.8/zh/reference/sql/information-schema/schemata.md
@@ -18,8 +18,8 @@ DESC SCHEMATA;
 | default_character_set_name | String |      | NO   |         | FIELD         |
 | default_collation_name     | String |      | NO   |         | FIELD         |
 | sql_path                   | String |      | YES  |         | FIELD         |
+| options                    | String |      | YES  |         | FIELD         |
 +----------------------------+--------+------+------+---------+---------------+
-5 rows in set (0.00 sec)
 ```
 
 ```sql
@@ -27,14 +27,14 @@ SELECT * FROM SCHEMATA;
 ```
 
 ```sql
-+--------------+--------------------+----------------------------+------------------------+----------+
-| catalog_name | schema_name        | default_character_set_name | default_collation_name | sql_path |
-+--------------+--------------------+----------------------------+------------------------+----------+
-| greptime     | greptime_private   | utf8                       | utf8_bin               | NULL     |
-| greptime     | information_schema | utf8                       | utf8_bin               | NULL     |
-| greptime     | public             | utf8                       | utf8_bin               | NULL     |
-+--------------+--------------------+----------------------------+------------------------+----------+
-3 rows in set (0.01 sec)
++--------------+--------------------+----------------------------+------------------------+----------+-------------+
+| catalog_name | schema_name        | default_character_set_name | default_collation_name | sql_path | options     |
++--------------+--------------------+----------------------------+------------------------+----------+-------------+
+| greptime     | greptime_private   | utf8                       | utf8_bin               | NULL     |             |
+| greptime     | information_schema | utf8                       | utf8_bin               | NULL     |             |
+| greptime     | public             | utf8                       | utf8_bin               | NULL     |             |
+| greptime     | test               | utf8                       | utf8_bin               | NULL     | ttl='7days' |
++--------------+--------------------+----------------------------+------------------------+----------+-------------+
 ```
 
 `SCHEMATA` 表中的字段描述如下：
@@ -44,3 +44,4 @@ SELECT * FROM SCHEMATA;
 - `default_character_set_name`：数据库的默认字符集。
 - `default_collation_name`：数据库的默认排序规则。
 - `sql_path`：该项的值始终为 `NULL`。
+- `options`: GreptimeDB 扩展字段，数据库的配置参数。
diff --git a/docs/v0.8/zh/reference/sql/show.md b/docs/v0.8/zh/reference/sql/show.md
index 2619b05c3..e0e0b2a7d 100644
--- a/docs/v0.8/zh/reference/sql/show.md
+++ b/docs/v0.8/zh/reference/sql/show.md
@@ -7,7 +7,7 @@
 展示所有数据库：
 
 ```sql
-SHOW DATABASES;
+SHOW [FULL] DATABASES;
 ```
 
 ```sql
@@ -31,6 +31,24 @@ SHOW DATABASES LIKE 'p%';
 SHOW DATABASES WHERE Schemas='test_public_schema';
 ```
 
+展示所有数据库，包括它们的选项：
+
+```sql
+create database with(ttl='7d');
+SHOW FULL DATABASES;
+```
+
+```sql
++--------------------+-------------+
+| Database           | Options     |
++--------------------+-------------+
+| greptime_private   |             |
+| information_schema |             |
+| public             |             |
+| test               | ttl='7days' |
++--------------------+-------------+
+```
+
 ## SHOW TABLES
 
 展示所有表：
diff --git a/docs/v0.8/zh/summary-i18n.yml b/docs/v0.8/zh/summary-i18n.yml
index dcdc4068c..946482be9 100644
--- a/docs/v0.8/zh/summary-i18n.yml
+++ b/docs/v0.8/zh/summary-i18n.yml
@@ -33,4 +33,6 @@ back-up-&-restore-data: 备份和恢复
 SDK: SDK
 SQL: SQL
 FAQ-and-Others: 常见问题及其他
-Release-Notes: Release-Notes
+Release-Notes: Release Notes
+Disaster-Recovery: 灾难恢复
+Upgrade: 升级
diff --git a/docs/v0.8/zh/user-guide/operations/admin.md b/docs/v0.8/zh/user-guide/operations/admin.md
index 90aceb389..5cf8c6ad8 100644
--- a/docs/v0.8/zh/user-guide/operations/admin.md
+++ b/docs/v0.8/zh/user-guide/operations/admin.md
@@ -7,7 +7,7 @@
 * GreptimeDB 的 [安装](/getting-started/installation/overview.md) 和 [g-t-control](./gtctl.md) 命令行工具。
 * 数据库配置，请阅读 [配置](./configuration.md) 参考。
 * GreptimeDB 的 [监控](./monitoring.md) 和 [链路追踪](./tracing.md)。
-* GreptimeDB 的 [备份与恢复方法](./back-up-\&-restore-data.md)。
+* GreptimeDB 的 [灾难恢复方案](./disaster-recovery/overview.md)。
 
 ### 运行时信息
 
diff --git a/docs/v0.8/zh/user-guide/operations/back-up-&-restore-data.md b/docs/v0.8/zh/user-guide/operations/disaster-recovery/back-up-&-restore-data.md
similarity index 100%
rename from docs/v0.8/zh/user-guide/operations/back-up-&-restore-data.md
rename to docs/v0.8/zh/user-guide/operations/disaster-recovery/back-up-&-restore-data.md
diff --git a/docs/v0.8/zh/user-guide/operations/disaster-recovery/overview.md b/docs/v0.8/zh/user-guide/operations/disaster-recovery/overview.md
new file mode 100644
index 000000000..ea9cae76c
--- /dev/null
+++ b/docs/v0.8/zh/user-guide/operations/disaster-recovery/overview.md
@@ -0,0 +1,3 @@
+# 概述
+
+* GreptimeDB 的 [备份与恢复方法](./back-up-\&-restore-data.md)
\ No newline at end of file
diff --git a/docs/v0.8/zh/user-guide/operations/overview.md b/docs/v0.8/zh/user-guide/operations/overview.md
index 1333ed77b..7d49a80b4 100644
--- a/docs/v0.8/zh/user-guide/operations/overview.md
+++ b/docs/v0.8/zh/user-guide/operations/overview.md
@@ -1 +1,11 @@
-TODO
+* [管理](./admin.md)
+* [配置 GreptimeDB](./configuration.md)
+* [容量规划](./capacity-plan.md) 
+* [灾难恢复](./disaster-recovery/overview.md)
+* [Kubernetes](./kubernetes.md)
+* [gtctl](./gtctl.md)
+* [在 Android 平台运行](./run-on-android.md)
+* [监控](./monitoring.md)
+* [Tracing](./tracing.md)
+* [Remote WAL](./remote-wal/quick-start.md)
+* [Region 迁移](./region-migration.md)