anchor.diff:        <pre>
           <p class='code'>
             <span class='command-prompt'>title 'Number of studies by type';</span>
  -          <span class='command-prompt'>proc freq data=</span><span>cloud.studies;</span>
  -          <span class='command-prompt'>   tables </span><span>study_type;</span>
  +          <span class='command-prompt'>proc freq data=</span><span class='command-entry'>cloud.studies;</span>
  +          <span class='command-prompt'>   tables </span><span class='command-entry'>study_type;</span>
             <span class='command-prompt'>   run;</span>
             <span class='command-prompt'>title;</span>
         </p>
  
positive.code:           <span class='command-response'>* Consider extracting just a subset of records (e.g., 1000) first;</span>
            <span class='command-response'>* In the example below, the maximum length for character variables stored as ‘text’ type in the postgreSQL database is set at 1000;</span>
  
            <span class='command-prompt'>libname sasdata </span><span> "&lt;my file path&gt;" </span><span class='command-prompt'> ;</span><span class='command-response'>  /* folder for storing dataset */</span>
  
            <span class='command-prompt'>data sasdata.studies;</span>
            <span class='command-prompt'>   set cloud.studies </span>
            <span class='command-prompt'>      (dbmax_text=</span><span>1000</span><span class='command-prompt'> obs=</span><span>1000);</span>
            <span class='command-prompt'>   run;</span>
          </p>
        </pre>
  
negative.code:           <span class='command-response'>*  For example, the following code took >2.5 h to run on PC SAS;</span>
            <span class='command-response'>*    over a home internet connection;</span>
            <span class='command-prompt'>proc copy</span>
            <span class='command-prompt'>   in = </span><span class='command-entry'>cloud</span>
            <span class='command-prompt'>   out = </span><span class='command-entry'>sasdata</span>
            <span class='command-prompt'>   ;</span>
            <span class='command-entry'>   select studies  sponsors ; </span><span class='command-response'> /* select a subset of database tables */</span>
            <span class='command-prompt'>   run;</span>
  