anchor.diff:  
   [source,xml]
   ----
  -<dataConfig> --<1>
  -
  -  <dataSource driver="org.hsqldb.jdbcDriver" url="jdbc:hsqldb:./example-DIH/hsqldb/ex" user="sa" password="secret"/> --<2>
  +<dataConfig>
  +
  +  <dataSource driver="org.hsqldb.jdbcDriver" url="jdbc:hsqldb:./example-DIH/hsqldb/ex" --<1>
  +    user="sa" password="secret"/> --<2>
     <document> --<3>
       <entity name="item" query="select * from item"
               deltaQuery="select id from item where last_modified > '${dataimporter.last_index_time}'"> --<4>
  
positive.code: 
  [source,bash]
  http://localhost:8983/solr/dih/dataimport?command=full-import&jdbcurl=jdbc:hsqldb:./example-DIH/hsqldb/ex&jdbcuser=sa&jdbcpassword=secret
  
  == DataImportHandler Commands
  
  
negative.code:   </document>
  </dataConfig>
  ----
  <1> The first element is the `dataSource`, in this case an HSQLDB database. The path to the JDBC driver and the JDBC URL and login credentials are all specified here. Other permissible attributes include whether or not to autocommit to Solr, the batchsize used in the JDBC connection, and a `readOnly` flag.
  <2> The password attribute is optional if there is no password set for the DB. Alternately, the password can be encrypted; the section <<Encrypting a Database Password>> below describes how to do this.
  <3> A `document` element follows, containing multiple `entity` elements. Note that `entity` elements can be nested, and this allows the entity relationships in the sample database to be mirrored here, so that we can generate a denormalized Solr record which may include multiple features for one item, for instance.
  <4> The possible attributes for the `entity` element are described in later sections. Entity elements may contain one or more `field` elements, which map the data source field names to Solr fields, and optionally specify per-field transformations. This entity is the `root` entity.
  <5> This entity is nested and reflects the one-to-many relationship between an item and its multiple features. Note the use of variables; `${item.ID}` is the value of the column 'ID' for the current item (`item` referring to the entity name).
  