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This page explains how to clean up the study before syncing data from OC freshly. Before you sync any data from OC freshly data, you will need to delete the entries for existing synced CRFs, patients, visits, and records in CRFs.

• To delete the existing visits in the CP.

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• To update the older deleted records name in the CRFs table, use the below SQL.

update dyextn_containers set deleted_on = now(), name = concat(name, '_deleted_20210225')
where identifier in (select container_id from catissue_form_context where cp_id = ?) 

• To delete the CRFs records of existing CRFs, use the below SQL.

delete from catissue_form_record_entry where form_ctxt_id in
      (select identifier from catissue_form_context where cp_id = ?)

• To avoid the duplicate form context id error, you will need to delete the existing CRFs. To delete those CRFs, you need to delete their context identifiers.

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