diff --git a/data/storage/mysql/mysql_cdr_migration.sql b/data/storage/mysql/mysql_cdr_migration.sql
new file mode 100644
index 000000000..8dd5987fd
--- /dev/null
+++ b/data/storage/mysql/mysql_cdr_migration.sql
@@ -0,0 +1,51 @@
+/*
+This script will migrate CDRs from the old CGRateS tables to the new cdrs table
+but it only migrate CDRs where the duration is > 0.
+If you need CDRs also with duration is = 0 you can make the appropriate change in the line beginning WHERE cdrs_primary.usage
+Also the script will process 10,000 CDRs before committing to save system resources 
+especially in systems where they are millions of CDRs to be migrated
+You can increase or lower the value of step in the line after BEGIN below.
+
+You have to use 'CALL cgrates.migration();' to execute the script. If named other then default use that database name.
+*/
+
+CREATE PROCEDURE `migration`()
+BEGIN
+	/* Optimize table for performance */
+	ALTER TABLE cdrs DISABLE KEYS;
+	SET autocommit=0; 
+   	SET unique_checks=0; 
+   	SET foreign_key_checks=0;
+	/* DECLARE variables */
+	DECLARE max_cdrs bigint;
+   	DECLARE start_id bigint;
+   	DECLARE end_id bigint;
+   	DECLARE step bigint;
+	/* You must change the step var to commit every step rows inserted */
+	SET step := 10000;
+	SET start_id := 0;
+	SET end_id := start_id + step;
+	SET max_cdrs = (select max(id) from rated_cdrs);
+	WHILE (start_id <= max_cdrs) DO
+		INSERT INTO 
+			cdrs(cgrid,run_id,origin_host,source,origin_id,tor,request_type,direction,tenant,category,account,subject,destination,setup_time,pdd,answer_time,`usage`,supplier,disconnect_cause,extra_fields,cost_source,cost,cost_details,extra_info, created_at, updated_at, deleted_at) 
+				SELECT cdrs_primary.cgrid,rated_cdrs.runid as run_id,cdrs_primary.cdrhost as origin_host,cdrs_primary.cdrsource as source,cdrs_primary.accid as origin_id, cdrs_primary.tor,rated_cdrs.reqtype as request_type,rated_cdrs.direction, rated_cdrs.tenant,rated_cdrs.category, rated_cdrs.account, rated_cdrs.subject, rated_cdrs.destination,rated_cdrs.setup_time,rated_cdrs.pdd,rated_cdrs.answer_time,rated_cdrs.`usage`,rated_cdrs.supplier,rated_cdrs.disconnect_cause,cdrs_extra.extra_fields,cost_details.cost_source,rated_cdrs.cost,cost_details.timespans as cost_details,rated_cdrs.extra_info,rated_cdrs.created_at,rated_cdrs.updated_at, rated_cdrs.deleted_at 
+				FROM rated_cdrs 
+				INNER JOIN cdrs_primary ON rated_cdrs.cgrid = cdrs_primary.cgrid 
+				LEFT JOIN cdrs_extra ON rated_cdrs.cgrid = cdrs_extra.cgrid 
+				INNER JOIN cost_details ON rated_cdrs.cgrid = cost_details.cgrid 
+				WHERE cdrs_primary.`usage` > '0'
+				AND not exists (select 1 from cdrs c where c.cgrid = cdrs_primary.cgrid)
+				AND rated_cdrs.id >= start_id
+				AND rated_cdrs.id < end_id
+          			GROUP BY cgrid, run_id, origin_id;
+		SET start_id = start_id + step;
+		SET end_id = end_id + step;
+	END WHILE;
+	/* SET Table for live usage */
+       SET autocommit=1; 
+   	SET unique_checks=1; 
+   	SET foreign_key_checks=1;
+   	ALTER TABLE cdrs ENABLE KEYS;
+   	OPTIMIZE TABLE cdrs;
+END