diff --git a/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.0_schema/mysql/dolphinscheduler_ddl.sql b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.0_schema/mysql/dolphinscheduler_ddl.sql
index cc5516df7a..9655255701 100644
--- a/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.0_schema/mysql/dolphinscheduler_ddl.sql
+++ b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.0_schema/mysql/dolphinscheduler_ddl.sql
@@ -147,7 +147,10 @@ BEGIN
                      AND TABLE_SCHEMA=(SELECT DATABASE())
                      AND COLUMN_NAME ='code')
     THEN
-           alter table t_ds_project add `code` bigint(20) NOT NULL COMMENT 'encoding' AFTER `name`;
+        alter table t_ds_project add `code` bigint(20) COMMENT 'encoding' AFTER `name`;
+        -- update default value for not null
+        UPDATE t_ds_project SET code = id;
+        alter table t_ds_project modify `code` bigint(20) NOT NULL;
     END IF;
 END;
 
@@ -412,7 +415,10 @@ alter table t_ds_schedules add timezone_id varchar(40) DEFAULT NULL COMMENT 'tim
 alter table t_ds_schedules add environment_code bigint(20) DEFAULT '-1' COMMENT 'environment code' AFTER worker_group;
 
 -- t_ds_process_definition
-alter table t_ds_process_definition add `code` bigint(20) NOT NULL COMMENT 'encoding' AFTER `id`;
+alter table t_ds_process_definition add `code` bigint(20) COMMENT 'encoding' AFTER `id`;
+-- update default value for not null
+UPDATE t_ds_process_definition SET code = id;
+alter table t_ds_process_definition modify `code` bigint(20) NOT NULL;
 alter table t_ds_process_definition change project_id project_code bigint(20) NOT NULL COMMENT 'project code' AFTER `description`;
 alter table t_ds_process_definition add `warning_group_id` int(11) DEFAULT NULL COMMENT 'alert group id' AFTER `locations`;
 alter table t_ds_process_definition add UNIQUE KEY `process_unique` (`name`,`project_code`) USING BTREE;
diff --git a/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.0_schema/postgresql/dolphinscheduler_ddl.sql b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.0_schema/postgresql/dolphinscheduler_ddl.sql
index fc6f3c4c08..b1c1b9a3f6 100644
--- a/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.0_schema/postgresql/dolphinscheduler_ddl.sql
+++ b/dolphinscheduler-dao/src/main/resources/sql/upgrade/2.0.0_schema/postgresql/dolphinscheduler_ddl.sql
@@ -49,7 +49,7 @@ BEGIN
     EXECUTE 'ALTER TABLE ' || quote_ident(v_schema) ||'.t_ds_user ADD COLUMN IF NOT EXISTS "state" int DEFAULT 1';
     EXECUTE 'ALTER TABLE ' || quote_ident(v_schema) ||'.t_ds_alertgroup ADD COLUMN IF NOT EXISTS "alert_instance_ids" varchar(255) DEFAULT NULL';
     EXECUTE 'ALTER TABLE ' || quote_ident(v_schema) ||'.t_ds_alertgroup ADD COLUMN IF NOT EXISTS "create_user_id" int4 DEFAULT NULL';
-    EXECUTE 'ALTER TABLE ' || quote_ident(v_schema) ||'.t_ds_project ADD COLUMN IF NOT EXISTS "code" bigint NOT NULL';
+    EXECUTE 'ALTER TABLE ' || quote_ident(v_schema) ||'.t_ds_project ADD COLUMN IF NOT EXISTS "code" bigint';
     EXECUTE 'ALTER TABLE ' || quote_ident(v_schema) ||'.t_ds_command ADD COLUMN IF NOT EXISTS "environment_code" bigint DEFAULT -1';
     EXECUTE 'ALTER TABLE ' || quote_ident(v_schema) ||'.t_ds_command ADD COLUMN IF NOT EXISTS "dry_run" int DEFAULT 0';
     EXECUTE 'ALTER TABLE ' || quote_ident(v_schema) ||'.t_ds_command ADD COLUMN IF NOT EXISTS "process_definition_version" int DEFAULT 0';
@@ -78,6 +78,10 @@ BEGIN
     EXECUTE 'ALTER TABLE ' || quote_ident(v_schema) ||'.t_ds_process_definition ADD COLUMN IF NOT EXISTS "warning_group_id" int';
     EXECUTE 'ALTER TABLE ' || quote_ident(v_schema) ||'.t_ds_process_definition ADD COLUMN IF NOT EXISTS "execution_type" int DEFAULT 0';
 
+    --update default value for not null
+    EXECUTE 'UPDATE ' || quote_ident(v_schema) ||'.t_ds_process_definition SET code = id';
+    EXECUTE 'UPDATE ' || quote_ident(v_schema) ||'.t_ds_project SET code = id';
+
     ---drop columns
     EXECUTE 'ALTER TABLE ' || quote_ident(v_schema) ||'.t_ds_tenant DROP COLUMN IF EXISTS "tenant_name"';
     EXECUTE 'ALTER TABLE ' || quote_ident(v_schema) ||'.t_ds_process_instance DROP COLUMN IF EXISTS "process_instance_json"';
@@ -96,7 +100,7 @@ BEGIN
     EXECUTE 'ALTER TABLE ' || quote_ident(v_schema) ||'."t_ds_process_definition" ALTER COLUMN "code" SET NOT NULL';
     EXECUTE 'ALTER TABLE ' || quote_ident(v_schema) ||'."t_ds_process_definition" ALTER COLUMN "project_code" SET NOT NULL';
     EXECUTE 'ALTER TABLE ' || quote_ident(v_schema) ||'."t_ds_process_definition" ADD CONSTRAINT "process_unique" UNIQUE ("name","project_code")';
-    EXECUTE 'ALTER TABLE ' || quote_ident(v_schema) ||'."t_ds_process_definition" ALTER COLUMN "description" SET NOT NULL';
+    EXECUTE 'ALTER TABLE ' || quote_ident(v_schema) ||'."t_ds_project" ALTER COLUMN "code" SET NOT NULL';
 
     --- drop index
     EXECUTE 'DROP INDEX IF EXISTS "process_instance_index"';