# Audit log contents and examples for database activity streams
<a name="DBActivityStreams.AuditLog"></a>

Monitored events are represented in the database activity stream as JSON strings. The structure consists of a JSON object containing a `DatabaseActivityMonitoringRecord`, which in turn contains a `databaseActivityEventList` array of activity events. 

**Note**  
For database activity streams, the `paramList` JSON array doesn't include null values from Hibernate applications.

**Topics**
+ [Examples of an audit log for an activity stream](#DBActivityStreams.AuditLog.Examples)
+ [DatabaseActivityMonitoringRecords JSON object](#DBActivityStreams.AuditLog.DatabaseActivityMonitoringRecords)
+ [databaseActivityEvents JSON Object](#DBActivityStreams.AuditLog.databaseActivityEvents)

## Examples of an audit log for an activity stream
<a name="DBActivityStreams.AuditLog.Examples"></a>

Following are sample decrypted JSON audit logs of activity event records.

**Example Activity event record of a CONNECT SQL statement**  
The following activity event record shows a login with the use of a `CONNECT` SQL statement (`command`) by a JDBC Thin Client (`clientApplication`) for your Oracle DB.  

```
{
    "class": "Standard",
    "clientApplication": "JDBC Thin Client",
    "command": "LOGON",
    "commandText": null,
    "dbid": "0123456789",
    "databaseName": "ORCL",
    "dbProtocol": "oracle",
    "dbUserName": "TEST",
    "endTime": null,
    "errorMessage": null,
    "exitCode": 0,
    "logTime": "2021-01-15 00:15:36.233787",
    "netProtocol": "tcp",
    "objectName": null,
    "objectType": null,
    "paramList": [],
    "pid": 17904,
    "remoteHost": "123.456.789.012",
    "remotePort": "25440",
    "rowCount": null,
    "serverHost": "987.654.321.098",
    "serverType": "oracle",
    "serverVersion": "19.0.0.0.ru-2020-01.rur-2020-01.r1.EE.3",
    "serviceName": "oracle-ee",
    "sessionId": 987654321,
    "startTime": null,
    "statementId": 1,
    "substatementId": null,
    "transactionId": "0000000000000000",
    "engineNativeAuditFields": {
        "UNIFIED_AUDIT_POLICIES": "TEST_POL_EVERYTHING",
        "FGA_POLICY_NAME": null,
        "DV_OBJECT_STATUS": null,
        "SYSTEM_PRIVILEGE_USED": "CREATE SESSION",
        "OLS_LABEL_COMPONENT_TYPE": null,
        "XS_SESSIONID": null,
        "ADDITIONAL_INFO": null,
        "INSTANCE_ID": 1,
        "DBID": 123456789
        "DV_COMMENT": null,
        "RMAN_SESSION_STAMP": null,
        "NEW_NAME": null,
        "DV_ACTION_NAME": null,
        "OLS_PROGRAM_UNIT_NAME": null,
        "OLS_STRING_LABEL": null,
        "RMAN_SESSION_RECID": null,
        "OBJECT_PRIVILEGES": null,
        "OLS_OLD_VALUE": null,
        "XS_TARGET_PRINCIPAL_NAME": null,
        "XS_NS_ATTRIBUTE": null,
        "XS_NS_NAME": null,
        "DBLINK_INFO": null,
        "AUTHENTICATION_TYPE": "(TYPE\u003d(DATABASE));(CLIENT ADDRESS\u003d((ADDRESS\u003d(PROTOCOL\u003dtcp)(HOST\u003d205.251.233.183)(PORT\u003d25440))));",
        "OBJECT_EDITION": null,
        "OLS_PRIVILEGES_GRANTED": null,
        "EXCLUDED_USER": null,
        "DV_ACTION_OBJECT_NAME": null,
        "OLS_LABEL_COMPONENT_NAME": null,
        "EXCLUDED_SCHEMA": null,
        "DP_TEXT_PARAMETERS1": null,
        "XS_USER_NAME": null,
        "XS_ENABLED_ROLE": null,
        "XS_NS_ATTRIBUTE_NEW_VAL": null,
        "DIRECT_PATH_NUM_COLUMNS_LOADED": null,
        "AUDIT_OPTION": null,
        "DV_EXTENDED_ACTION_CODE": null,
        "XS_PACKAGE_NAME": null,
        "OLS_NEW_VALUE": null,
        "DV_RETURN_CODE": null,
        "XS_CALLBACK_EVENT_TYPE": null,
        "USERHOST": "a1b2c3d4e5f6.amazon.com",
        "GLOBAL_USERID": null,
        "CLIENT_IDENTIFIER": null,
        "RMAN_OPERATION": null,
        "TERMINAL": "unknown",
        "OS_USERNAME": "sumepate",
        "OLS_MAX_READ_LABEL": null,
        "XS_PROXY_USER_NAME": null,
        "XS_DATASEC_POLICY_NAME": null,
        "DV_FACTOR_CONTEXT": null,
        "OLS_MAX_WRITE_LABEL": null,
        "OLS_PARENT_GROUP_NAME": null,
        "EXCLUDED_OBJECT": null,
        "DV_RULE_SET_NAME": null,
        "EXTERNAL_USERID": null,
        "EXECUTION_ID": null,
        "ROLE": null,
        "PROXY_SESSIONID": 0,
        "DP_BOOLEAN_PARAMETERS1": null,
        "OLS_POLICY_NAME": null,
        "OLS_GRANTEE": null,
        "OLS_MIN_WRITE_LABEL": null,
        "APPLICATION_CONTEXTS": null,
        "XS_SCHEMA_NAME": null,
        "DV_GRANTEE": null,
        "XS_COOKIE": null,
        "DBPROXY_USERNAME": null,
        "DV_ACTION_CODE": null,
        "OLS_PRIVILEGES_USED": null,
        "RMAN_DEVICE_TYPE": null,
        "XS_NS_ATTRIBUTE_OLD_VAL": null,
        "TARGET_USER": null,
        "XS_ENTITY_TYPE": null,
        "ENTRY_ID": 1,
        "XS_PROCEDURE_NAME": null,
        "XS_INACTIVITY_TIMEOUT": null,
        "RMAN_OBJECT_TYPE": null,
        "SYSTEM_PRIVILEGE": null,
        "NEW_SCHEMA": null,
        "SCN": 5124715
    }
}
```
The following activity event record shows a login failure for your SQL Server DB.  

```
{
    "type": "DatabaseActivityMonitoringRecord",
    "clusterId": "",
    "instanceId": "db-4JCWQLUZVFYP7DIWP6JVQ77O3Q",
    "databaseActivityEventList": [
        {
            "class": "LOGIN",
            "clientApplication": "Microsoft SQL Server Management Studio",
            "command": "LOGIN FAILED",
            "commandText": "Login failed for user 'test'. Reason: Password did not match that for the login provided. [CLIENT: local-machine]",
            "databaseName": "",
            "dbProtocol": "SQLSERVER",
            "dbUserName": "test",
            "endTime": null,
            "errorMessage": null,
            "exitCode": 0,
            "logTime": "2022-10-06 21:34:42.7113072+00",
            "netProtocol": null,
            "objectName": "",
            "objectType": "LOGIN",
            "paramList": null,
            "pid": null,
            "remoteHost": "local machine",
            "remotePort": null,
            "rowCount": 0,
            "serverHost": "172.31.30.159",
            "serverType": "SQLSERVER",
            "serverVersion": "15.00.4073.23.v1.R1",
            "serviceName": "sqlserver-ee",
            "sessionId": 0,
            "startTime": null,
            "statementId": "0x1eb0d1808d34a94b9d3dcf5432750f02",
            "substatementId": 1,
            "transactionId": "0",
            "type": "record",
            "engineNativeAuditFields": {
                "target_database_principal_id": 0,
                "target_server_principal_id": 0,
                "target_database_principal_name": "",
                "server_principal_id": 0,
                "user_defined_information": "",
                "response_rows": 0,
                "database_principal_name": "",
                "target_server_principal_name": "",
                "schema_name": "",
                "is_column_permission": false,
                "object_id": 0,
                "server_instance_name": "EC2AMAZ-NFUJJNO",
                "target_server_principal_sid": null,
                "additional_information": "<action_info "xmlns=\"http://schemas.microsoft.com/sqlserver/2008/sqlaudit_data\"><pooled_connection>0</pooled_connection><error>0x00004818</error><state>8</state><address>local machine</address><PasswordFirstNibbleHash>B</PasswordFirstNibbleHash></action_info>"-->,
                "duration_milliseconds": 0,
                "permission_bitmask": "0x00000000000000000000000000000000",
                "data_sensitivity_information": "",
                "session_server_principal_name": "",
                "connection_id": "98B4F537-0F82-49E3-AB08-B9D33B5893EF",
                "audit_schema_version": 1,
                "database_principal_id": 0,
                "server_principal_sid": null,
                "user_defined_event_id": 0,
                "host_name": "EC2AMAZ-NFUJJNO"
            }
        }
    ]
}
```
If a database activity stream isn't enabled, then the last field in the JSON document is `"engineNativeAuditFields": { }`. 

**Example Activity event record of a CREATE TABLE statement**  
The following example shows a `CREATE TABLE` event for your Oracle database.  

```
{
    "class": "Standard",
    "clientApplication": "sqlplus@ip-12-34-5-678 (TNS V1-V3)",
    "command": "CREATE TABLE",
    "commandText": "CREATE TABLE persons(\n    person_id NUMBER GENERATED BY DEFAULT AS IDENTITY,\n    first_name VARCHAR2(50) NOT NULL,\n    last_name VARCHAR2(50) NOT NULL,\n    PRIMARY KEY(person_id)\n)",
    "dbid": "0123456789",
    "databaseName": "ORCL",
    "dbProtocol": "oracle",
    "dbUserName": "TEST",
    "endTime": null,
    "errorMessage": null,
    "exitCode": 0,
    "logTime": "2021-01-15 00:22:49.535239",
    "netProtocol": "beq",
    "objectName": "PERSONS",
    "objectType": "TEST",
    "paramList": [],
    "pid": 17687,
    "remoteHost": "123.456.789.0",
    "remotePort": null,
    "rowCount": null,
    "serverHost": "987.654.321.01",
    "serverType": "oracle",
    "serverVersion": "19.0.0.0.ru-2020-01.rur-2020-01.r1.EE.3",
    "serviceName": "oracle-ee",
    "sessionId": 1234567890,
    "startTime": null,
    "statementId": 43,
    "substatementId": null,
    "transactionId": "090011007F0D0000",
    "engineNativeAuditFields": {
        "UNIFIED_AUDIT_POLICIES": "TEST_POL_EVERYTHING",
        "FGA_POLICY_NAME": null,
        "DV_OBJECT_STATUS": null,
        "SYSTEM_PRIVILEGE_USED": "CREATE SEQUENCE, CREATE TABLE",
        "OLS_LABEL_COMPONENT_TYPE": null,
        "XS_SESSIONID": null,
        "ADDITIONAL_INFO": null,
        "INSTANCE_ID": 1,
        "DV_COMMENT": null,
        "RMAN_SESSION_STAMP": null,
        "NEW_NAME": null,
        "DV_ACTION_NAME": null,
        "OLS_PROGRAM_UNIT_NAME": null,
        "OLS_STRING_LABEL": null,
        "RMAN_SESSION_RECID": null,
        "OBJECT_PRIVILEGES": null,
        "OLS_OLD_VALUE": null,
        "XS_TARGET_PRINCIPAL_NAME": null,
        "XS_NS_ATTRIBUTE": null,
        "XS_NS_NAME": null,
        "DBLINK_INFO": null,
        "AUTHENTICATION_TYPE": "(TYPE\u003d(DATABASE));(CLIENT ADDRESS\u003d((PROTOCOL\u003dbeq)(HOST\u003d123.456.789.0)));",
        "OBJECT_EDITION": null,
        "OLS_PRIVILEGES_GRANTED": null,
        "EXCLUDED_USER": null,
        "DV_ACTION_OBJECT_NAME": null,
        "OLS_LABEL_COMPONENT_NAME": null,
        "EXCLUDED_SCHEMA": null,
        "DP_TEXT_PARAMETERS1": null,
        "XS_USER_NAME": null,
        "XS_ENABLED_ROLE": null,
        "XS_NS_ATTRIBUTE_NEW_VAL": null,
        "DIRECT_PATH_NUM_COLUMNS_LOADED": null,
        "AUDIT_OPTION": null,
        "DV_EXTENDED_ACTION_CODE": null,
        "XS_PACKAGE_NAME": null,
        "OLS_NEW_VALUE": null,
        "DV_RETURN_CODE": null,
        "XS_CALLBACK_EVENT_TYPE": null,
        "USERHOST": "ip-10-13-0-122",
        "GLOBAL_USERID": null,
        "CLIENT_IDENTIFIER": null,
        "RMAN_OPERATION": null,
        "TERMINAL": "pts/1",
        "OS_USERNAME": "rdsdb",
        "OLS_MAX_READ_LABEL": null,
        "XS_PROXY_USER_NAME": null,
        "XS_DATASEC_POLICY_NAME": null,
        "DV_FACTOR_CONTEXT": null,
        "OLS_MAX_WRITE_LABEL": null,
        "OLS_PARENT_GROUP_NAME": null,
        "EXCLUDED_OBJECT": null,
        "DV_RULE_SET_NAME": null,
        "EXTERNAL_USERID": null,
        "EXECUTION_ID": null,
        "ROLE": null,
        "PROXY_SESSIONID": 0,
        "DP_BOOLEAN_PARAMETERS1": null,
        "OLS_POLICY_NAME": null,
        "OLS_GRANTEE": null,
        "OLS_MIN_WRITE_LABEL": null,
        "APPLICATION_CONTEXTS": null,
        "XS_SCHEMA_NAME": null,
        "DV_GRANTEE": null,
        "XS_COOKIE": null,
        "DBPROXY_USERNAME": null,
        "DV_ACTION_CODE": null,
        "OLS_PRIVILEGES_USED": null,
        "RMAN_DEVICE_TYPE": null,
        "XS_NS_ATTRIBUTE_OLD_VAL": null,
        "TARGET_USER": null,
        "XS_ENTITY_TYPE": null,
        "ENTRY_ID": 12,
        "XS_PROCEDURE_NAME": null,
        "XS_INACTIVITY_TIMEOUT": null,
        "RMAN_OBJECT_TYPE": null,
        "SYSTEM_PRIVILEGE": null,
        "NEW_SCHEMA": null,
        "SCN": 5133083
    }
}
```
The following example shows a `CREATE TABLE` event for your SQL Server database.  

```
{
    "type": "DatabaseActivityMonitoringRecord",
    "clusterId": "",
    "instanceId": "db-4JCWQLUZVFYP7DIWP6JVQ77O3Q",
    "databaseActivityEventList": [
        {
            "class": "SCHEMA",
            "clientApplication": "Microsoft SQL Server Management Studio - Query",
            "command": "ALTER",
            "commandText": "Create table [testDB].[dbo].[TestTable2](\r\ntextA varchar(6000),\r\n    textB varchar(6000)\r\n)",
            "databaseName": "testDB",
            "dbProtocol": "SQLSERVER",
            "dbUserName": "test",
            "endTime": null,
            "errorMessage": null,
            "exitCode": 1,
            "logTime": "2022-10-06 21:44:38.4120677+00",
            "netProtocol": null,
            "objectName": "dbo",
            "objectType": "SCHEMA",
            "paramList": null,
            "pid": null,
            "remoteHost": "local machine",
            "remotePort": null,
            "rowCount": 0,
            "serverHost": "172.31.30.159",
            "serverType": "SQLSERVER",
            "serverVersion": "15.00.4073.23.v1.R1",
            "serviceName": "sqlserver-ee",
            "sessionId": 84,
            "startTime": null,
            "statementId": "0x5178d33d56e95e419558b9607158a5bd",
            "substatementId": 1,
            "transactionId": "4561864",
            "type": "record",
            "engineNativeAuditFields": {
                "target_database_principal_id": 0,
                "target_server_principal_id": 0,
                "target_database_principal_name": "",
                "server_principal_id": 2,
                "user_defined_information": "",
                "response_rows": 0,
                "database_principal_name": "dbo",
                "target_server_principal_name": "",
                "schema_name": "",
                "is_column_permission": false,
                "object_id": 1,
                "server_instance_name": "EC2AMAZ-NFUJJNO",
                "target_server_principal_sid": null,
                "additional_information": "",
                "duration_milliseconds": 0,
                "permission_bitmask": "0x00000000000000000000000000000000",
                "data_sensitivity_information": "",
                "session_server_principal_name": "test",
                "connection_id": "EE1FE3FD-EF2C-41FD-AF45-9051E0CD983A",
                "audit_schema_version": 1,
                "database_principal_id": 1,
                "server_principal_sid": "0x010500000000000515000000bdc2795e2d0717901ba6998cf4010000",
                "user_defined_event_id": 0,
                "host_name": "EC2AMAZ-NFUJJNO"
            }
        }
    ]
}
```

**Example Activity event record of a SELECT statement**  
The following example shows a `SELECT` event for your Oracle DB.  

```
{
    "class": "Standard",
    "clientApplication": "sqlplus@ip-12-34-5-678 (TNS V1-V3)",
    "command": "SELECT",
    "commandText": "select count(*) from persons",
    "databaseName": "1234567890",
    "dbProtocol": "oracle",
    "dbUserName": "TEST",
    "endTime": null,
    "errorMessage": null,
    "exitCode": 0,
    "logTime": "2021-01-15 00:25:18.850375",
    "netProtocol": "beq",
    "objectName": "PERSONS",
    "objectType": "TEST",
    "paramList": [],
    "pid": 17687,
    "remoteHost": "123.456.789.0",
    "remotePort": null,
    "rowCount": null,
    "serverHost": "987.654.321.09",
    "serverType": "oracle",
    "serverVersion": "19.0.0.0.ru-2020-01.rur-2020-01.r1.EE.3",
    "serviceName": "oracle-ee",
    "sessionId": 1080639707,
    "startTime": null,
    "statementId": 44,
    "substatementId": null,
    "transactionId": null,
    "engineNativeAuditFields": {
        "UNIFIED_AUDIT_POLICIES": "TEST_POL_EVERYTHING",
        "FGA_POLICY_NAME": null,
        "DV_OBJECT_STATUS": null,
        "SYSTEM_PRIVILEGE_USED": null,
        "OLS_LABEL_COMPONENT_TYPE": null,
        "XS_SESSIONID": null,
        "ADDITIONAL_INFO": null,
        "INSTANCE_ID": 1,
        "DV_COMMENT": null,
        "RMAN_SESSION_STAMP": null,
        "NEW_NAME": null,
        "DV_ACTION_NAME": null,
        "OLS_PROGRAM_UNIT_NAME": null,
        "OLS_STRING_LABEL": null,
        "RMAN_SESSION_RECID": null,
        "OBJECT_PRIVILEGES": null,
        "OLS_OLD_VALUE": null,
        "XS_TARGET_PRINCIPAL_NAME": null,
        "XS_NS_ATTRIBUTE": null,
        "XS_NS_NAME": null,
        "DBLINK_INFO": null,
        "AUTHENTICATION_TYPE": "(TYPE\u003d(DATABASE));(CLIENT ADDRESS\u003d((PROTOCOL\u003dbeq)(HOST\u003d123.456.789.0)));",
        "OBJECT_EDITION": null,
        "OLS_PRIVILEGES_GRANTED": null,
        "EXCLUDED_USER": null,
        "DV_ACTION_OBJECT_NAME": null,
        "OLS_LABEL_COMPONENT_NAME": null,
        "EXCLUDED_SCHEMA": null,
        "DP_TEXT_PARAMETERS1": null,
        "XS_USER_NAME": null,
        "XS_ENABLED_ROLE": null,
        "XS_NS_ATTRIBUTE_NEW_VAL": null,
        "DIRECT_PATH_NUM_COLUMNS_LOADED": null,
        "AUDIT_OPTION": null,
        "DV_EXTENDED_ACTION_CODE": null,
        "XS_PACKAGE_NAME": null,
        "OLS_NEW_VALUE": null,
        "DV_RETURN_CODE": null,
        "XS_CALLBACK_EVENT_TYPE": null,
        "USERHOST": "ip-12-34-5-678",
        "GLOBAL_USERID": null,
        "CLIENT_IDENTIFIER": null,
        "RMAN_OPERATION": null,
        "TERMINAL": "pts/1",
        "OS_USERNAME": "rdsdb",
        "OLS_MAX_READ_LABEL": null,
        "XS_PROXY_USER_NAME": null,
        "XS_DATASEC_POLICY_NAME": null,
        "DV_FACTOR_CONTEXT": null,
        "OLS_MAX_WRITE_LABEL": null,
        "OLS_PARENT_GROUP_NAME": null,
        "EXCLUDED_OBJECT": null,
        "DV_RULE_SET_NAME": null,
        "EXTERNAL_USERID": null,
        "EXECUTION_ID": null,
        "ROLE": null,
        "PROXY_SESSIONID": 0,
        "DP_BOOLEAN_PARAMETERS1": null,
        "OLS_POLICY_NAME": null,
        "OLS_GRANTEE": null,
        "OLS_MIN_WRITE_LABEL": null,
        "APPLICATION_CONTEXTS": null,
        "XS_SCHEMA_NAME": null,
        "DV_GRANTEE": null,
        "XS_COOKIE": null,
        "DBPROXY_USERNAME": null,
        "DV_ACTION_CODE": null,
        "OLS_PRIVILEGES_USED": null,
        "RMAN_DEVICE_TYPE": null,
        "XS_NS_ATTRIBUTE_OLD_VAL": null,
        "TARGET_USER": null,
        "XS_ENTITY_TYPE": null,
        "ENTRY_ID": 13,
        "XS_PROCEDURE_NAME": null,
        "XS_INACTIVITY_TIMEOUT": null,
        "RMAN_OBJECT_TYPE": null,
        "SYSTEM_PRIVILEGE": null,
        "NEW_SCHEMA": null,
        "SCN": 5136972
    }
}
```
The following example shows a `SELECT` event for your SQL Server DB.  

```
{
    "type": "DatabaseActivityMonitoringRecord",
    "clusterId": "",
    "instanceId": "db-4JCWQLUZVFYP7DIWP6JVQ77O3Q",
    "databaseActivityEventList": [
        {
            "class": "TABLE",
            "clientApplication": "Microsoft SQL Server Management Studio - Query",
            "command": "SELECT",
            "commandText": "select * from [testDB].[dbo].[TestTable]",
            "databaseName": "testDB",
            "dbProtocol": "SQLSERVER",
            "dbUserName": "test",
            "endTime": null,
            "errorMessage": null,
            "exitCode": 1,
            "logTime": "2022-10-06 21:24:59.9422268+00",
            "netProtocol": null,
            "objectName": "TestTable",
            "objectType": "TABLE",
            "paramList": null,
            "pid": null,
            "remoteHost": "local machine",
            "remotePort": null,
            "rowCount": 0,
            "serverHost": "172.31.30.159",
            "serverType": "SQLSERVER",
            "serverVersion": "15.00.4073.23.v1.R1",
            "serviceName": "sqlserver-ee",
            "sessionId": 62,
            "startTime": null,
            "statementId": "0x03baed90412f564fad640ebe51f89b99",
            "substatementId": 1,
            "transactionId": "4532935",
            "type": "record",
            "engineNativeAuditFields": {
                "target_database_principal_id": 0,
                "target_server_principal_id": 0,
                "target_database_principal_name": "",
                "server_principal_id": 2,
                "user_defined_information": "",
                "response_rows": 0,
                "database_principal_name": "dbo",
                "target_server_principal_name": "",
                "schema_name": "dbo",
                "is_column_permission": true,
                "object_id": 581577110,
                "server_instance_name": "EC2AMAZ-NFUJJNO",
                "target_server_principal_sid": null,
                "additional_information": "",
                "duration_milliseconds": 0,
                "permission_bitmask": "0x00000000000000000000000000000001",
                "data_sensitivity_information": "",
                "session_server_principal_name": "test",
                "connection_id": "AD3A5084-FB83-45C1-8334-E923459A8109",
                "audit_schema_version": 1,
                "database_principal_id": 1,
                "server_principal_sid": "0x010500000000000515000000bdc2795e2d0717901ba6998cf4010000",
                "user_defined_event_id": 0,
                "host_name": "EC2AMAZ-NFUJJNO"
            }
        }
    ]
}
```

## DatabaseActivityMonitoringRecords JSON object
<a name="DBActivityStreams.AuditLog.DatabaseActivityMonitoringRecords"></a>

The database activity event records are in a JSON object that contains the following information.


****  

| JSON Field | Data Type | Description | 
| --- | --- | --- | 
|  `type`  | string |  The type of JSON record. The value is `DatabaseActivityMonitoringRecords`.  | 
| version | string |  The version of the database activity monitoring records. Oracle DB uses version 1.3 and SQL Server uses version 1.4. These engine versions introduce the engineNativeAuditFields JSON object.  | 
|  [databaseActivityEvents](#DBActivityStreams.AuditLog.databaseActivityEvents)  | string |  A JSON object that contains the activity events.  | 
| key | string | An encryption key that you use to decrypt the [databaseActivityEventList JSON array](DBActivityStreams.AuditLog.databaseActivityEventList.md)  | 

## databaseActivityEvents JSON Object
<a name="DBActivityStreams.AuditLog.databaseActivityEvents"></a>

The `databaseActivityEvents` JSON object contains the following information.

### Top-level fields in JSON record
<a name="DBActivityStreams.AuditLog.topLevel"></a>

 Each event in the audit log is wrapped inside a record in JSON format. This record contains the following fields. 

**type**  
 This field always has the value `DatabaseActivityMonitoringRecords`. 

**version**  
 This field represents the version of the database activity stream data protocol or contract. It defines which fields are available.

**databaseActivityEvents**  
 An encrypted string representing one or more activity events. It's represented as a base64 byte array. When you decrypt the string, the result is a record in JSON format with fields as shown in the examples in this section.

**key**  
 The encrypted data key used to encrypt the `databaseActivityEvents` string. This is the same AWS KMS key that you provided when you started the database activity stream.

 The following example shows the format of this record.

```
{
  "type":"DatabaseActivityMonitoringRecords",
  "version":"1.3",
  "databaseActivityEvents":"encrypted audit records",
  "key":"encrypted key"
}
```

```
           "type":"DatabaseActivityMonitoringRecords",
           "version":"1.4",
           "databaseActivityEvents":"encrypted audit records",
           "key":"encrypted key"
```

Take the following steps to decrypt the contents of the `databaseActivityEvents` field:

1.  Decrypt the value in the `key` JSON field using the KMS key you provided when starting database activity stream. Doing so returns the data encryption key in clear text. 

1.  Base64-decode the value in the `databaseActivityEvents` JSON field to obtain the ciphertext, in binary format, of the audit payload. 

1.  Decrypt the binary ciphertext with the data encryption key that you decoded in the first step. 

1.  Decompress the decrypted payload. 
   +  The encrypted payload is in the `databaseActivityEvents` field. 
   +  The `databaseActivityEventList` field contains an array of audit records. The `type` fields in the array can be `record` or `heartbeat`. 

The audit log activity event record is a JSON object that contains the following information.


****  

| JSON Field | Data Type | Description | 
| --- | --- | --- | 
|  `type`  | string |  The type of JSON record. The value is `DatabaseActivityMonitoringRecord`.  | 
| instanceId | string | The DB instance resource identifier. It corresponds to the DB instance attribute DbiResourceId. | 
|  [databaseActivityEventList JSON array](DBActivityStreams.AuditLog.databaseActivityEventList.md)   | string |  An array of activity audit records or heartbeat messages.  |