FINERACT-802-restrict-client-to-have-single-self-service-user (#664)

fineract-provider/src/main/resources/sql/migrations/core_db/V354__self_service_user_unique_for_client.sql

@@ -0,0 +1,20 @@
+--
+-- Licensed to the Apache Software Foundation (ASF) under one
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+-- to you under the Apache License, Version 2.0 (the
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+-- with the License. You may obtain a copy of the License at
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+-- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+-- KIND, either express or implied. See the License for the
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+-- under the License.
+--
+
+ALTER TABLE `m_selfservice_user_client_mapping` ADD CONSTRAINT `unique_self_client` UNIQUE (`client_id`);