Solr: how to query particuler entity when multiple - apache

Question

I am starting to learn Solr (using version 5.5.0). I am using managed-schema and data-congif.xml files to inex two sql server tables: Company & Contact.
I am able to execute from the UI, the data import, selecting one entity at a time.
This is the message I get for Company:
Indexing completed. Added/Updated: 8,293 documents. Deleted 0 documents. (Duration: 01s)
Requests: 1 (1/s), Fetched: 8,293 (8,293/s), Skipped: 0, Processed: 8,293 (8,293/s) Started: less than a minute ago
This is the message I get for Contact:
Indexing completed. Added/Updated: 81 documents. Deleted 0 documents.
Requests: 1, Fetched: 81, Skipped: 0, Processed: 81
Started: less than a minute ago
When I click the Query section, I want to perform a query to see all the Contact, and/ or Company records, not necessarily combined, but just be able to query them.
I am not sure how to do this, is it possible to get some help to understand how to specify against which entity I want to execute the query?
Here are the 2 files I modified:
data-cofig.xml:
<dataConfig>
<dataSource type="JdbcDataSource"
driver="com.microsoft.sqlserver.jdbc.SQLServerDriver"
url="jdbc:sqlserver://sql.server.com\test;databaseName=test"
user="testusr"
password="testpwd"/>
<document>
<entity name="Company" pk="CompanyID" query="SELECT * FROM tblCompany">
<field column="CompanyID" name="company_companyid"/>
<field column="Name" name="company_name"/>
<field column="Website" name="company_website"/>
<field column="Description" name="company_description"/>
<field column="NumberOfEmployees" name="company_numberofemployees"/>
<field column="AnnualRevenue" name="company_annualrevenue"/>
<field column="YearFounded" name="company_yearfounded"/>
</entity>
<entity name="Contact" pk="ContactID" query="SELECT * FROM tblContact">
<field column="ContactID" name="contact_contactid"/>
<field column="FirstName" name="contact_firstname"/>
<field column="MiddleInitial" name="contact_middleinitial"/>
<field column="LastName" name="contact_lastname"/>
<field column="Email" name="contact_email"/>
<field column="Description" name="contact_description"/>
</entity>
</document>
</dataConfig>
managed-schema:
<!-- Company Begin -->
<field name="company_companyid" type="string" indexed="true"/>
<field name="company_name" type="string" indexed="true"/>
<field name="company_website" type="string" indexed="true"/>
<field name="company_description" type="string" indexed="true"/>
<field name="company_numberofemployees" type="string" indexed="true"/>
<field name="company_annualrevenue" type="string" indexed="true"/>
<field name="company_yearfounded" type="string" indexed="true"/>
<!-- Company End -->
<!-- Contact Begin -->
<field name="contact_contactid" type="string" indexed="true" />
<field name="contact_firstname" type="string" indexed="true"/>
<field name="contact_middleinitial" type="string" indexed="true"/>
<field name="contact_lastname" type="string" indexed="true"/>
<field name="contact_email" type="string" indexed="true"/>
<!-- Contact End -->
UPDATE
I tried using the fl field to select company_companyid, but I did not get any results.
I am including a screen shot:

Answer 1

To get fields as needed from a document, use fl. For example, if you were using SolrJ, you would have something like query.set("fl", "fieldA, fieldB").
In a URL, it looks like this: http://host:port/solr/coreName/select?q=*%3A*&fl=fieldA,fieldB&wt=json&indent=true