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By default, an upsert to the database is disabled. If you perform an upsert to your database, an insert will occur if there are no duplicates for the record. If it has duplicates, an update will occur. To enable this, you will need to use the  <enable_upsert/> directive.

Note
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Enabling upsert is only available for SAP Hana.


Prerequisites

(warning) First, you will need to set up one of the Perspectium DataSync Agents.

(warning) You should also stop running your DataSync Agent before making any Agent configuration changes.


Procedure

To enable upsert to your database, follow these steps:

UI Steps


UI Step

Access your agent.xml configuration file

Navigate to the directory where you saved your agent.xml file when installing your DataSync Agent.


UI Step

Add the <enable_upsert/> directive

Open your agent.xml file in a text editing application. Then, locate the <task> directive(s) and nest the <enable_upsert/> directive.


UI Step

Save your agent.xml

Save the changes you've made to your agent.xml and close the file. Your agent.xml should look similar to the example shown below:

Code Block
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<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
<config>
   <agent>
	<truncate_utf8/>
      <share/>
      <subscribe>
         <task instances="4">
            <task_name>test_hana2_subscribe</task_name>
            <message_connection password="encrypted:vlOtU71yu8N/EFIJH85SSBtaIt7qEEfvqiqft9VZyYE=" queue="psp.out.replicator.testqueue" user="admin">https://testperspectium.net</message_connection>
            <instance_connection password="encrypted:vlOtU71yu8N/EFIJH85SSPN9aF0P5/YViVwPEVFcGW4=" user="test.user">https://myinstance.service-now.com</instance_connection>
            <handler>com.perspectium.replicator.sql.SQLSubscriber</handler>
            <decryption_key>The cow jumped over the moon</decryption_key>
            <database_type>hana</database_type>
            <database_server>localhost</database_server>
            <database_port>3306</database_port>
            <database_user>root</database_user>
            <database_password>encrypted:vlOtU71yu8N/EFIJH85SSMoilKLTeJHQrNZPJ7c5tFU=</database_password>
            <database_parms>characterEncoding=UTF-8 & useSSL=false</database_parms>
            <database_column_max_size>251</database_column_max_size>
            <database>psp_repl</database>
            <skip_alter/>
			<enable_upsert/>
         </task>
      </subscribe>
      <max_reads_per_connect>4000</max_reads_per_connect>
      <polling_interval>5</polling_interval>
      <skip_message_set_processing/>
   </agent>
</config>





UI Step

Run your Agent again

After configuring your agent.xml file to skip alteration of database tables enable upsert to your database, start running your DataSync Agent again.





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