[docs][oracle] Update the oracle-cdc.md that include incremental snap…

…shot framework for Oracle CDC Connector config

docs/content/connectors/oracle-cdc.md

@@ -169,6 +169,7 @@ Overall, the steps for configuring CDB database is quite similar to non-CDB data
      GRANT SELECT ANY TRANSACTION TO flinkuser CONTAINER=ALL;
      GRANT LOGMINING TO flinkuser CONTAINER=ALL;
      GRANT CREATE TABLE TO flinkuser CONTAINER=ALL;
+     -- need not to execute if set scan.incremental.snapshot.enabled=true(default)
      GRANT LOCK ANY TABLE TO flinkuser CONTAINER=ALL;
      GRANT CREATE SEQUENCE TO flinkuser CONTAINER=ALL;
 
@@ -302,7 +303,47 @@ Connector Options
       <td>Optional startup mode for Oracle CDC consumer, valid enumerations are "initial"
            and "latest-offset". 
            Please see <a href="#startup-reading-position">Startup Reading Position</a> section for more detailed information.</td>
-    </tr>  
+    </tr>
+    <tr>
+          <td>scan.incremental.snapshot.enabled</td>
+          <td>optional</td>
+          <td style="word-wrap: break-word;">true</td>
+          <td>Boolean</td>
+          <td>Incremental snapshot is a new mechanism to read snapshot of a table. Compared to the old snapshot mechanism,
+              the incremental snapshot has many advantages, including:
+                (1) source can be parallel during snapshot reading, 
+                (2) source can perform checkpoints in the chunk granularity during snapshot reading, 
+                (3) source doesn't need to acquire ROW SHARE MODE lock before snapshot reading.
+          </td>
+    </tr>
+    <tr>
+          <td>scan.incremental.snapshot.chunk.size</td>
+          <td>optional</td>
+          <td style="word-wrap: break-word;">8096</td>
+          <td>Integer</td>
+          <td>The chunk size (number of rows) of table snapshot, captured tables are split into multiple chunks when read the snapshot of table.</td>
+    </tr>
+    <tr>
+          <td>scan.snapshot.fetch.size</td>
+          <td>optional</td>
+          <td style="word-wrap: break-word;">1024</td>
+          <td>Integer</td>
+          <td>The maximum fetch size for per poll when read table snapshot.</td>
+    </tr>
+    <tr>
+          <td>connect.max-retries</td>
+          <td>optional</td>
+          <td style="word-wrap: break-word;">3</td>
+          <td>Integer</td>
+          <td>The max retry times that the connector should retry to build MySQL database server connection.</td>
+    </tr>
+    <tr>
+          <td>connection.pool.size</td>
+          <td>optional</td>
+          <td style="word-wrap: break-word;">20</td>
+          <td>Integer</td>
+          <td>The connection pool size.</td>
+    </tr>
     <tr>
       <td>debezium.*</td>
       <td>optional</td>
@@ -386,7 +427,9 @@ CREATE TABLE products (
     'password' = 'flinkpw',
     'database-name' = 'XE',
     'schema-name' = 'inventory',
-    'table-name' = 'products'
+    'table-name' = 'products',
+    'debezium.log.mining.strategy' = 'online_catalog',
+    'debezium.log.mining.continuous.mine' = 'true'
 );
 ```
 
@@ -537,7 +580,8 @@ Data Type Mapping
         VARCHAR2(n)<br>
         CLOB<br>
         NCLOB<br>
-        XMLType
+        XMLType<br>
+        SYS.XMLTYPE
       </td>
       <td>STRING</td>
     </tr>