make period and term nullable
diff --git a/service/src/main/resources/db/migrations/mariadb/V3__term_nullable.sql b/service/src/main/resources/db/migrations/mariadb/V3__term_nullable.sql
new file mode 100644
index 0000000..218e8e0
--- /dev/null
+++ b/service/src/main/resources/db/migrations/mariadb/V3__term_nullable.sql
@@ -0,0 +1,18 @@
+--
+-- Copyright 2017 The Mifos Initiative.
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+-- http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+ALTER TABLE shed_terms MODIFY COLUMN period INTEGER(5) NULL;
+ALTER TABLE shed_terms MODIFY COLUMN time_unit VARCHAR(32) NULL;
\ No newline at end of file
