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copied!<p>If you are planning <a href="http://docs.codehaus.org/display/GROOVY/Tutorial+6+-+Groovy+SQL" rel="nofollow noreferrer">to do your own sql</a> (like it seems to be the case) over 2 datasources, I suggest that you define your 2 datasources as Spring beans in grails-app/conf/spring.</p> <p>e.g. (drop your db drivers in /lib and replace the values to match your RDBMS drivers and connection string) :</p> <pre><code>import org.apache.commons.dbcp.BasicDataSource import oracle.jdbc.driver.OracleDriver beans = { worksDataSource(BasicDataSource) { driverClassName = "oracle.jdbc.driver.OracleDriver" url = "jdbc:oracle:thin:@someserver:someport:works" username = "works" password = "workspassword" } testDataSource(BasicDataSource) { driverClassName = "oracle.jdbc.driver.OracleDriver" url = "jdbc:oracle:thin:@someserver:someport:test" username = "test" password = "testpassword" } } </code></pre> <p>Then create a service to handle your queries, like :</p> <pre><code>import groovy.sql.Sql class SomeService { def worksDataSource def testDataSource def query1 = """ SELECT crf_name, crf_id FROM works.crfs """ def query2 = """ SELECT group_id, group_name FROM test.item_groups """ def sqlWorks = Sql.newInstance(query1) def sqlTest = Sql.newInstance(query2) // Then do whatever you like with the results of the 2 queries // e.g. sqlWorks.eachRow{ row -> def someDomainObject = new SomeDomainObject(prop1 : row.crf_name, prop2 : crf_id) someDomainObject.otherProp = whateverYouLike() someDomainObject.save() } } </code></pre> <p>Your query doesn't have a where clause so I don't know how you want to relate the data coming from your 2 tables...</p> <p>If you want to do a single query mixing tables from 2 databases, (ask your DBA to) establish a DBLink between databases test and works and perform the query on the datasource containing the DBLink.</p> <p>I hope this helps.</p>

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