查询汇率；

mhd_bms/src/main/resources/mapper/BillingStatementMapper.xml

@@ -275,7 +275,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         SELECT
             RATE as "taxRate"
         FROM
-            EXPENSE_ACCOUNT
+            NGWL_TEST_SYSTEM.EXPENSE_ACCOUNT
         WHERE
             SUBJECT_CODE = #{subjectCode}
           AND SUBJECT_NAME = #{subjectName}