Run the Start Maintenance Script
Before you upgrade any of the software, follow the steps in this procedure to start the maintenance activity.
To run the Start Maintenace script:
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                        Download or copy the maintenance start script file from the Oracle LSH application server (EBS Middle Tier server) $CDR_TOP/patch/115/sql/cdrmaintstart.sqlto the database server’s ORACLE_HOME location or any other preferred location.
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                        From the database server, log in to SQL*Plus (not SQL Developer) as the APPS database user. 
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                        Enter this command to stop the study health monitor scheduler: SQL> EXECUTE DBMS_SCHEDULER.DISABLE('STUDY_HEALTH_REFRESH', FORCE => TRUE);
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                        Enter this command to execute the script: SQL> @cdrmaintstart.sql
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                        Check the log file. The log file validates the success of the Start Maintenance process and provides a maintenance ID. For example, it lists messages to show what it found up and running and what it stopped (such as the message queue and job queue). 
Parent topic: Upgrade to Oracle LSH 3.4.2