diff --git a/docs/content/quickstart/oracle-tutorial.md b/docs/content/quickstart/oracle-tutorial.md
index bc93a6162..c52e1faf6 100644
--- a/docs/content/quickstart/oracle-tutorial.md
+++ b/docs/content/quickstart/oracle-tutorial.md
@@ -1,6 +1,6 @@
 # Demo: Oracle CDC to Elasticsearch
 
-**1. Create `docker-compose.yml` file using following contents:**
+**Create `docker-compose.yml` file using following contents:**
 
 ```
 version: '2.1'
@@ -34,7 +34,7 @@ services:
       - /var/run/docker.sock:/var/run/docker.sock
 ```
 The Docker Compose environment consists of the following containers:
-- Oracle: Oracle 11g and a pre-populated `products` and `orders` table in the database.
+- Oracle: Oracle 19c database.
 - Elasticsearch: store the join result of the `orders` and `products` table.
 - Kibana: mainly used to visualize the data in Elasticsearch
 
@@ -50,14 +50,78 @@ Don’t forget to run the following command to stop all containers after you fin
 docker-compose down
 ```
 
-**2. Download following JAR package to `<FLINK_HOME>/lib`**
+**Download following JAR package to `<FLINK_HOME>/lib`**
 
-*Download links are available only for stable releases, SNAPSHOT dependency need build by yourself. *
+**Download links are available only for stable releases, SNAPSHOT dependencies need to be built based on master or release-branches by yourself.**
 
 - [flink-sql-connector-elasticsearch7-3.0.1-1.17.jar](https://repo.maven.apache.org/maven2/org/apache/flink/flink-sql-connector-elasticsearch7/3.0.1-1.17/flink-sql-connector-elasticsearch7-3.0.1-1.17.jar)
-- [flink-sql-connector-oracle-cdc-2.4.0.jar](https://repo1.maven.org/maven2/com/ververica/flink-sql-connector-oracle-cdc/2.4.0/flink-sql-connector-oracle-cdc-2.4.0.jar)
+- [flink-sql-connector-oracle-cdc-2.5-SNAPSHOT.jar](https://repo1.maven.org/maven2/com/ververica/flink-sql-connector-oracle-cdc/2.5-SNAPSHOT/flink-sql-connector-oracle-cdc-2.5-SNAPSHOT.jar)
 
-**3. Launch a Flink cluster and start a Flink SQL CLI**
+
+**Preparing data in Oracle database**
+
+Introduce the tables in Oracle:
+```shell
+docker-compose exec oracle sqlplus debezium/dbz@localhost:1521/ORCLCDB
+```
+```sql
+BEGIN
+EXECUTE IMMEDIATE 'DROP TABLE DEBEZIUM.PRODUCTS';
+EXCEPTION
+   WHEN OTHERS THEN
+      IF SQLCODE != -942 THEN
+         RAISE;
+END IF;
+END;
+/
+
+CREATE TABLE DEBEZIUM.PRODUCTS (
+  ID NUMBER(9, 0) NOT NULL,
+  NAME VARCHAR(255) NOT NULL,
+  DESCRIPTION VARCHAR(512),
+  WEIGHT FLOAT,
+  PRIMARY KEY(ID)
+);
+
+BEGIN
+EXECUTE IMMEDIATE 'DROP TABLE DEBEZIUM.ORDERS';
+EXCEPTION
+   WHEN OTHERS THEN
+      IF SQLCODE != -942 THEN
+         RAISE;
+END IF;
+END;
+/
+
+CREATE TABLE DEBEZIUM.ORDERS (
+  ID NUMBER(9, 0) NOT NULL,
+  ORDER_DATE TIMESTAMP(3) NOT NULL,
+  PURCHASER VARCHAR(255) NOT NULL,
+  QUANTITY NUMBER(9, 0) NOT NULL,
+  PRODUCT_ID NUMBER(9, 0) NOT NULL,
+  PRIMARY KEY(ID)
+);
+
+ALTER TABLE DEBEZIUM.PRODUCTS ADD SUPPLEMENTAL LOG DATA (ALL) COLUMNS;
+ALTER TABLE DEBEZIUM.ORDERS ADD SUPPLEMENTAL LOG DATA (ALL) COLUMNS;
+
+INSERT INTO DEBEZIUM.PRODUCTS VALUES (101, 'scooter', 'Small 2-wheel scooter', 3.14);
+INSERT INTO DEBEZIUM.PRODUCTS VALUES (102, 'car battery', '12V car battery', 8.1);
+INSERT INTO DEBEZIUM.PRODUCTS VALUES (103, '12-pack drill bits', '12-pack of drill bits with sizes ranging from #40 to #3', 0.8);
+INSERT INTO DEBEZIUM.PRODUCTS VALUES (104, 'hammer', '12oz carpenter''s hammer', 0.75);
+INSERT INTO DEBEZIUM.PRODUCTS VALUES (105, 'hammer', '14oz carpenter''s hammer', 0.875);
+INSERT INTO DEBEZIUM.PRODUCTS VALUES (106, 'hammer', '16oz carpenter''s hammer', 1.0);
+INSERT INTO DEBEZIUM.PRODUCTS VALUES (107, 'rocks', 'box of assorted rocks', 5.3);
+INSERT INTO DEBEZIUM.PRODUCTS VALUES (108, 'jacket', 'water resistent black wind breaker', 0.1);
+INSERT INTO DEBEZIUM.PRODUCTS VALUES (109, 'spare tire', '24 inch spare tire', 22.2);
+
+INSERT INTO DEBEZIUM.ORDERS VALUES (1001, TO_TIMESTAMP('2020-07-30 10:08:22.001000', 'YYYY-MM-DD HH24:MI:SS.FF'), 'Jark', 1, 101);
+INSERT INTO DEBEZIUM.ORDERS VALUES (1002, TO_TIMESTAMP('2020-07-30 10:11:09.001000', 'YYYY-MM-DD HH24:MI:SS.FF'), 'Sally', 2, 102);
+INSERT INTO DEBEZIUM.ORDERS VALUES (1003, TO_TIMESTAMP('2020-07-30 12:00:30.001000', 'YYYY-MM-DD HH24:MI:SS.FF'), 'Edward', 2, 103);
+INSERT INTO DEBEZIUM.ORDERS VALUES (1004, TO_TIMESTAMP('2020-07-30 15:22:00.001000', 'YYYY-MM-DD HH24:MI:SS.FF'), 'Jark', 1, 104);
+```
+
+**Launch a Flink cluster and start a Flink SQL CLI**
 
 Execute following SQL statements in the Flink SQL CLI:
 
@@ -75,38 +139,36 @@ Flink SQL> CREATE TABLE products (
     'connector' = 'oracle-cdc',
     'hostname' = 'localhost',
     'port' = '1521',
-    'username' = 'flinkuser',
-    'password' = 'flinkpw',
+    'username' = 'dbzuser',
+    'password' = 'dbz',
     'database-name' = 'ORCLCDB',
-    'schema-name' = 'flinkuser',  
+    'schema-name' = 'DEBEZIUM',  
     'table-name' = 'products'
   );
 
 Flink SQL> CREATE TABLE orders (
-   ORDER_ID INT,
-   ORDER_DATE TIMESTAMP_LTZ(3),
-   CUSTOMER_NAME STRING,
-   PRICE DECIMAL(10, 5),
+   ID INT,
+   ORDER_DATE TIMESTAMP(3),
+   PURCHASER STRING,
+   QUANTITY INT,
    PRODUCT_ID INT,
    ORDER_STATUS BOOLEAN
  ) WITH (
    'connector' = 'oracle-cdc',
    'hostname' = 'localhost',
    'port' = '1521',
-   'username' = 'flinkuser',
-   'password' = 'flinkpw',
+   'username' = 'dbzuser',
+   'password' = 'dbz',
    'database-name' = 'ORCLCDB',
-   'schema-name' = 'flinkuser',  
+   'schema-name' = 'DEBEZIUM',  
    'table-name' = 'orders'
  );
 
 Flink SQL> CREATE TABLE enriched_orders (
    ORDER_ID INT,
-   ORDER_DATE TIMESTAMP_LTZ(3),
-   CUSTOMER_NAME STRING,
-   PRICE DECIMAL(10, 5),
-   PRODUCT_ID INT,
-   ORDER_STATUS BOOLEAN,
+   ORDER_DATE TIMESTAMP(3),
+   PURCHASER STRING,
+   QUANTITY INT,
    PRODUCT_NAME STRING,
    PRODUCT_DESCRIPTION STRING,
    PRIMARY KEY (ORDER_ID) NOT ENFORCED
@@ -117,27 +179,27 @@ Flink SQL> CREATE TABLE enriched_orders (
  );
 
 Flink SQL> INSERT INTO enriched_orders
- SELECT o.*, p.NAME, p.DESCRIPTION
+ SELECT o.ID,o.ORDER_DATE,o.PURCHASER,o.QUANTITY, p.NAME, p.DESCRIPTION
  FROM orders AS o
  LEFT JOIN products AS p ON o.PRODUCT_ID = p.ID;
 ```
 
-**4. Check result in Elasticsearch**
+**Check result in Elasticsearch**
 
 Check the data has been written to Elasticsearch successfully, you can visit [Kibana](http://localhost:5601/) to see the data.
 
-**5. Make changes in Oracle and watch result in Elasticsearch**
+**Make changes in Oracle and watch result in Elasticsearch**
 
 Enter Oracle's container to make some changes in Oracle, then you can see the result in Elasticsearch will change after executing every SQL statement:
 
 ```shell
-docker-compose exec sqlplus flinkuser/flinkpw
+docker-compose exec oracle sqlplus debezium/dbz@localhost:1521/ORCLCDB
 ```
 
 ```sql
-INSERT INTO flinkuser.orders VALUES (10004, to_date('2020-07-30 15:22:00', 'yyyy-mm-dd hh24:mi:ss'), 'Jark', 29.71, 104, 0);
+INSERT INTO DEBEZIUM.ORDERS VALUES (1005, TO_TIMESTAMP('2020-07-30 15:22:00.001000', 'YYYY-MM-DD HH24:MI:SS.FF'), 'Jark', 5, 105);
 
-UPDATE flinkuser.orders SET ORDER_STATUS = 1 WHERE ORDER_ID = 10004;
+UPDATE DEBEZIUM.ORDERS SET QUANTITY = 10 WHERE ID = 1002;
 
-DELETE FROM flinkuser.orders WHERE ORDER_ID = 10004;
+DELETE FROM DEBEZIUM.ORDERS WHERE ID = 1004;
 ```
\ No newline at end of file
diff --git a/docs/content/快速上手/oracle-tutorial-zh.md b/docs/content/快速上手/oracle-tutorial-zh.md
index e1ad4f7ee..6e7520807 100644
--- a/docs/content/快速上手/oracle-tutorial-zh.md
+++ b/docs/content/快速上手/oracle-tutorial-zh.md
@@ -1,6 +1,6 @@
 # 演示: Oracle CDC 导入 Elasticsearch
 
-**1. 创建`docker-compose.yml`文件，内容如下所示:**
+**创建`docker-compose.yml`文件，内容如下所示:**
 
 ```
 version: '2.1'
@@ -34,7 +34,7 @@ services:
       - /var/run/docker.sock:/var/run/docker.sock
 ``` 
 该 Docker Compose 中包含的容器有:
-- Oracle: Oracle 11g, 已经预先创建了 `products` 和 `orders`表，并插入了一些数据. 
+- Oracle: Oracle 19c 数据库
 - Elasticsearch: `orders` 表将和 `products` 表进行join，join的结果写入Elasticsearch中
 - Kibana: 可视化 Elasticsearch 中的数据
 
@@ -50,14 +50,79 @@ docker-compose up -d
 docker-compose down
 ````
 
-**2. 下载以下 jar 包到 `<FLINK_HOME>/lib/`:**
+**下载以下 jar 包到 `<FLINK_HOME>/lib/`:**
 
 *下载链接只对已发布的版本有效, SNAPSHOT 版本需要本地编译*
 
 - [flink-sql-connector-elasticsearch7-3.0.1-1.17.jar](https://repo.maven.apache.org/maven2/org/apache/flink/flink-sql-connector-elasticsearch7/3.0.1-1.17/flink-sql-connector-elasticsearch7-3.0.1-1.17.jar)
 - [flink-sql-connector-oracle-cdc-2.4.0.jar](https://repo1.maven.org/maven2/com/ververica/flink-sql-connector-oracle-cdc/2.4.0/flink-sql-connector-oracle-cdc-2.4.0.jar)
 
-**3. 然后启动 Flink 集群，再启动 SQL CLI:**
+
+**在 Oracle 数据库中准备数据**
+
+创建数据库和表 `products`，`orders`，并插入数据：
+
+```shell
+docker-compose exec oracle sqlplus debezium/dbz@localhost:1521/ORCLCDB
+```
+```sql
+BEGIN
+EXECUTE IMMEDIATE 'DROP TABLE DEBEZIUM.PRODUCTS';
+EXCEPTION
+   WHEN OTHERS THEN
+      IF SQLCODE != -942 THEN
+         RAISE;
+END IF;
+END;
+/
+
+CREATE TABLE DEBEZIUM.PRODUCTS (
+  ID NUMBER(9, 0) NOT NULL,
+  NAME VARCHAR(255) NOT NULL,
+  DESCRIPTION VARCHAR(512),
+  WEIGHT FLOAT,
+  PRIMARY KEY(ID)
+);
+
+BEGIN
+EXECUTE IMMEDIATE 'DROP TABLE DEBEZIUM.ORDERS';
+EXCEPTION
+   WHEN OTHERS THEN
+      IF SQLCODE != -942 THEN
+         RAISE;
+END IF;
+END;
+/
+
+CREATE TABLE DEBEZIUM.ORDERS (
+  ID NUMBER(9, 0) NOT NULL,
+  ORDER_DATE TIMESTAMP(3) NOT NULL,
+  PURCHASER VARCHAR(255) NOT NULL,
+  QUANTITY NUMBER(9, 0) NOT NULL,
+  PRODUCT_ID NUMBER(9, 0) NOT NULL,
+  PRIMARY KEY(ID)
+);
+
+ALTER TABLE DEBEZIUM.PRODUCTS ADD SUPPLEMENTAL LOG DATA (ALL) COLUMNS;
+ALTER TABLE DEBEZIUM.ORDERS ADD SUPPLEMENTAL LOG DATA (ALL) COLUMNS;
+
+INSERT INTO DEBEZIUM.PRODUCTS VALUES (101, 'scooter', 'Small 2-wheel scooter', 3.14);
+INSERT INTO DEBEZIUM.PRODUCTS VALUES (102, 'car battery', '12V car battery', 8.1);
+INSERT INTO DEBEZIUM.PRODUCTS VALUES (103, '12-pack drill bits', '12-pack of drill bits with sizes ranging from #40 to #3', 0.8);
+INSERT INTO DEBEZIUM.PRODUCTS VALUES (104, 'hammer', '12oz carpenter''s hammer', 0.75);
+INSERT INTO DEBEZIUM.PRODUCTS VALUES (105, 'hammer', '14oz carpenter''s hammer', 0.875);
+INSERT INTO DEBEZIUM.PRODUCTS VALUES (106, 'hammer', '16oz carpenter''s hammer', 1.0);
+INSERT INTO DEBEZIUM.PRODUCTS VALUES (107, 'rocks', 'box of assorted rocks', 5.3);
+INSERT INTO DEBEZIUM.PRODUCTS VALUES (108, 'jacket', 'water resistent black wind breaker', 0.1);
+INSERT INTO DEBEZIUM.PRODUCTS VALUES (109, 'spare tire', '24 inch spare tire', 22.2);
+
+INSERT INTO DEBEZIUM.ORDERS VALUES (1001, TO_TIMESTAMP('2020-07-30 10:08:22.001000', 'YYYY-MM-DD HH24:MI:SS.FF'), 'Jark', 1, 101);
+INSERT INTO DEBEZIUM.ORDERS VALUES (1002, TO_TIMESTAMP('2020-07-30 10:11:09.001000', 'YYYY-MM-DD HH24:MI:SS.FF'), 'Sally', 2, 102);
+INSERT INTO DEBEZIUM.ORDERS VALUES (1003, TO_TIMESTAMP('2020-07-30 12:00:30.001000', 'YYYY-MM-DD HH24:MI:SS.FF'), 'Edward', 2, 103);
+INSERT INTO DEBEZIUM.ORDERS VALUES (1004, TO_TIMESTAMP('2020-07-30 15:22:00.001000', 'YYYY-MM-DD HH24:MI:SS.FF'), 'Jark', 1, 104);
+```
+
+**然后启动 Flink 集群，再启动 SQL CLI:**
 
 ```sql
 -- Flink SQL
@@ -73,38 +138,36 @@ Flink SQL> CREATE TABLE products (
     'connector' = 'oracle-cdc',
     'hostname' = 'localhost',
     'port' = '1521',
-    'username' = 'flinkuser',
-    'password' = 'flinkpw',
+    'username' = 'dbzuser',
+    'password' = 'dbz',
     'database-name' = 'ORCLCDB',
-    'schema-name' = 'flinkuser',  
+    'schema-name' = 'DEBEZIUM',  
     'table-name' = 'products'
   );
 
 Flink SQL> CREATE TABLE orders (
-   ORDER_ID INT,
-   ORDER_DATE TIMESTAMP_LTZ(3),
-   CUSTOMER_NAME STRING,
-   PRICE DECIMAL(10, 5),
+   ID INT,
+   ORDER_DATE TIMESTAMP(3),
+   PURCHASER STRING,
+   QUANTITY INT,
    PRODUCT_ID INT,
    ORDER_STATUS BOOLEAN
  ) WITH (
    'connector' = 'oracle-cdc',
    'hostname' = 'localhost',
    'port' = '1521',
-   'username' = 'flinkuser',
-   'password' = 'flinkpw',
+   'username' = 'dbzuser',
+   'password' = 'dbz',
    'database-name' = 'ORCLCDB',
-   'schema-name' = 'flinkuser',  
+   'schema-name' = 'DEBEZIUM',  
    'table-name' = 'orders'
  );
 
 Flink SQL> CREATE TABLE enriched_orders (
    ORDER_ID INT,
-   ORDER_DATE TIMESTAMP_LTZ(3),
-   CUSTOMER_NAME STRING,
-   PRICE DECIMAL(10, 5),
-   PRODUCT_ID INT,
-   ORDER_STATUS BOOLEAN,
+   ORDER_DATE TIMESTAMP(3),
+   PURCHASER STRING,
+   QUANTITY INT,
    PRODUCT_NAME STRING,
    PRODUCT_DESCRIPTION STRING,
    PRIMARY KEY (ORDER_ID) NOT ENFORCED
@@ -115,27 +178,27 @@ Flink SQL> CREATE TABLE enriched_orders (
  );
 
 Flink SQL> INSERT INTO enriched_orders
- SELECT o.*, p.NAME, p.DESCRIPTION
+ SELECT o.ID,o.ORDER_DATE,o.PURCHASER,o.QUANTITY, p.NAME, p.DESCRIPTION
  FROM orders AS o
  LEFT JOIN products AS p ON o.PRODUCT_ID = p.ID;
 ```
 
-**4. 检查 ElasticSearch 中的结果**
+**检查 ElasticSearch 中的结果**
 
 检查最终的结果是否写入ElasticSearch中, 可以在[Kibana](http://localhost:5601/)看到ElasticSearch中的数据
 
-**5. 在 Oracle 制造一些变更，观察 ElasticSearch 中的结果**
+**在 Oracle 制造一些变更，观察 ElasticSearch 中的结果**
 
 进入Oracle容器中并通过如下的SQL语句对Oracle数据库进行一些修改, 然后就可以看到每执行一条SQL语句，Elasticsearch中的数据都会实时更新。
 
 ```shell
-docker-compose exec sqlplus flinkuser/flinkpw
+docker-compose exec oracle sqlplus debezium/dbz@localhost:1521/ORCLCDB
 ```
 
 ```sql
-INSERT INTO flinkuser.orders VALUES (10004, to_date('2020-07-30 15:22:00', 'yyyy-mm-dd hh24:mi:ss'), 'Jark', 29.71, 104, 0);
+INSERT INTO DEBEZIUM.ORDERS VALUES (1005, TO_TIMESTAMP('2020-07-30 15:22:00.001000', 'YYYY-MM-DD HH24:MI:SS.FF'), 'Jark', 5, 105);
 
-UPDATE flinkuser.orders SET ORDER_STATUS = 1 WHERE ORDER_ID = 10004;
+UPDATE DEBEZIUM.ORDERS SET QUANTITY = 10 WHERE ID = 1002;
 
-DELETE FROM flinkuser.orders WHERE ORDER_ID = 10004;
+DELETE FROM DEBEZIUM.ORDERS WHERE ID = 1004;
 ```
\ No newline at end of file