Home > Workload Solutions > Oracle > Guides > Design Guide — Oracle Big Data SQL on Dell EMC PowerFlex > Accessing Microsoft SQL Server tables using Oracle Gateways
After you configure Oracle Gateways, create database links on the Oracle database to access the tables on Microsoft SQL Server. Create the database links using these steps:
SQL>CREATE PUBLIC DATABASE LINK dblink CONNECT TO sqluser" IDENTIFIED BY "sqlpassword" USING 'dg4msql';
SQL>SELECT * FROM DUAL@dblin