update english oracle.md (#12332)

docs/docs/en/guide/datasource/oracle.md

@@ -4,17 +4,18 @@
 
 ## Datasource Parameters
 
-|     **Datasource**      |                      **Description**                      |
+|     **Datasource**      |                      **Description**                                                                                                        |
-|-------------------------|-----------------------------------------------------------|
+|-------------------------|---------------------------------------------------------------------------------------------------------------------------------------------|
-| Datasource              | Select Oracle.                                            |
+| Datasource              | Select Oracle.                                                                                                                              |
-| Datasource Name         | Enter the name of the datasource.                         |
+| Datasource Name         | Enter the name of the datasource.                                                                                                           |
-| Description             | Enter a description of the datasource.                    |
+| Description             | Enter a description of the datasource.                                                                                                      |
-| IP/Host Name            | Enter the Oracle service IP.                              |
+| IP/Host Name            | Enter the Oracle service IP.                                                                                                                |
-| Port                    | Enter the Oracle service port.                            |
+| Port                    | Enter the Oracle service port.                                                                                                              |
-| Username                | Set the username for Oracle connection.                   |
+| Username                | Set the username for Oracle connection.                                                                                                     |
-| Password                | Set the password for Oracle connection.                   |
+| Password                | Set the password for Oracle connection.                                                                                                     |
-| Database Name           | Enter the database name of the Oracle connection.         |
+| Database Name           | Enter the ServiceName or SID of the Oracle connection.                                                                                      |
-| jdbc connect parameters | Parameter settings for Oracle connection, in JSON format. |
+| ServiceName or SID      | Choose ServiceName or SID according to your entry in Database Name column.                                                                  |
+| jdbc connect parameters | Parameter settings for Oracle connection, in JSON format. For example, you can use {"schema": "abc"} to specify database abc for using.     |
 
 ## Native Supported