diff --git a/plugins/dbgate-plugin-mssql/src/backend/sql/foreignKeys.js b/plugins/dbgate-plugin-mssql/src/backend/sql/foreignKeys.js
index 234ba20ce..ee786cc8c 100644
--- a/plugins/dbgate-plugin-mssql/src/backend/sql/foreignKeys.js
+++ b/plugins/dbgate-plugin-mssql/src/backend/sql/foreignKeys.js
@@ -13,28 +13,48 @@ SELECT
     deleteAction = rc.DELETE_RULE,
 
     objectId = o.object_id 
-
 FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS C
-INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS FK ON C.CONSTRAINT_NAME = FK.CONSTRAINT_NAME
+INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS FK 
+    ON C.CONSTRAINT_NAME = FK.CONSTRAINT_NAME
+    AND C.CONSTRAINT_SCHEMA = FK.CONSTRAINT_SCHEMA
 
-LEFT JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS PK ON C.UNIQUE_CONSTRAINT_NAME = PK.CONSTRAINT_NAME
-LEFT JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE CU ON C.CONSTRAINT_NAME = CU.CONSTRAINT_NAME
---LEFT JOIN (
---SELECT i1.TABLE_NAME, i2.COLUMN_NAME
---FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS i1
---INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE i2 ON i1.CONSTRAINT_NAME = i2.CONSTRAINT_NAME
---WHERE i1.CONSTRAINT_TYPE = 'PRIMARY KEY'
---) PT ON PT.TABLE_NAME = PK.TABLE_NAME
-INNER JOIN INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS rc ON FK.CONSTRAINT_NAME = rc.CONSTRAINT_NAME
+LEFT JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS PK 
+    ON C.UNIQUE_CONSTRAINT_NAME = PK.CONSTRAINT_NAME
+    AND C.UNIQUE_CONSTRAINT_SCHEMA = PK.CONSTRAINT_SCHEMA
 
-LEFT JOIN sys.indexes IX ON IX.name = C.UNIQUE_CONSTRAINT_NAME
-LEFT JOIN sys.objects IXT ON IXT.object_id = IX.object_id
-LEFT JOIN sys.index_columns IXC ON IX.index_id = IXC.index_id and IX.object_id = IXC.object_id
-LEFT JOIN sys.columns IXCC ON IXCC.column_id = IXC.column_id AND IXCC.object_id = IXC.object_id
-LEFT JOIN sys.schemas IXS ON IXT.schema_id = IXS.schema_id
+LEFT JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE CU 
+    ON C.CONSTRAINT_NAME = CU.CONSTRAINT_NAME
+    AND C.CONSTRAINT_SCHEMA = CU.CONSTRAINT_SCHEMA
 
-inner join sys.objects o on FK.TABLE_NAME = o.name
-inner join sys.schemas s on o.schema_id = s.schema_id and FK.TABLE_SCHEMA = s.name
+INNER JOIN INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS rc 
+    ON FK.CONSTRAINT_NAME = rc.CONSTRAINT_NAME
+    AND FK.CONSTRAINT_SCHEMA = rc.CONSTRAINT_SCHEMA
+
+LEFT JOIN sys.indexes IX 
+    ON IX.name = C.UNIQUE_CONSTRAINT_NAME
+    AND IX.object_id = OBJECT_ID(PK.TABLE_SCHEMA + '.' + PK.TABLE_NAME)
+
+LEFT JOIN sys.objects IXT 
+    ON IXT.object_id = IX.object_id
+
+LEFT JOIN sys.index_columns IXC 
+    ON IX.object_id = IXC.object_id 
+    AND IX.index_id = IXC.index_id
+
+LEFT JOIN sys.columns IXCC 
+    ON IXCC.object_id = IXC.object_id
+    AND IXCC.column_id = IXC.column_id
+
+LEFT JOIN sys.schemas IXS 
+    ON IXT.schema_id = IXS.schema_id
+
+INNER JOIN sys.objects o 
+    ON o.name = FK.TABLE_NAME
+    AND SCHEMA_NAME(o.schema_id) = FK.TABLE_SCHEMA
+
+INNER JOIN sys.schemas s 
+    ON o.schema_id = s.schema_id
+    AND s.name = FK.TABLE_SCHEMA
 
 where o.object_id =OBJECT_ID_CONDITION and s.name =SCHEMA_NAME_CONDITION
 `;