"How to get number of ExampleSet after Read Database"

thomas_wiedmann

Is there any way to get the number of rows (ExampleSet) from every "Read Database" inside a information value to work with?

I need to know how many rows come from every "Read Database" Query.

 

 

Thanks!

Thomas

 

 

lionelderkrikor

Hi @thomas_wiedmann,

 

Here an example of process (to adapt to your own project) to get the number of rows of an exampleset : 

 

<?xml version="1.0" encoding="UTF-8"?><process version="8.1.001">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="6.0.002" expanded="true" name="Process">
    <process expanded="true">
      <operator activated="true" breakpoints="after" class="retrieve" compatibility="8.1.001" expanded="true" height="68" name="Golf" width="90" x="112" y="120">
        <parameter key="repository_entry" value="//Samples/data/Golf"/>
      </operator>
      <operator activated="true" class="extract_macro" compatibility="8.1.001" expanded="true" height="68" name="Extract Macro" width="90" x="246" y="120">
        <parameter key="macro" value="eCount"/>
        <list key="additional_macros"/>
      </operator>
      <operator activated="true" class="provide_macro_as_log_value" compatibility="8.1.001" expanded="true" height="82" name="Provide Macro as Log Value" width="90" x="380" y="120">
        <parameter key="macro_name" value="eCount"/>
      </operator>
      <operator activated="true" class="log" compatibility="8.1.001" expanded="true" height="82" name="Log" width="90" x="514" y="136">
        <list key="log">
          <parameter key="Direct" value="operator.Extract Macro.value.macro_value"/>
          <parameter key="Indirect" value="operator.Provide Macro as Log Value.value.macro_value"/>
        </list>
      </operator>
      <connect from_op="Golf" from_port="output" to_op="Extract Macro" to_port="example set"/>
      <connect from_op="Extract Macro" from_port="example set" to_op="Provide Macro as Log Value" to_port="through 1"/>
      <connect from_op="Provide Macro as Log Value" from_port="through 1" to_op="Log" to_port="through 1"/>
      <connect from_op="Log" from_port="through 1" to_port="result 1"/>
      <portSpacing port="source_input 1" spacing="0"/>
      <portSpacing port="sink_result 1" spacing="90"/>
      <portSpacing port="sink_result 2" spacing="0"/>
    </process>
  </operator>
</process>

Does this solution answer to your need ?

 

Regards,

 

 

Lionel

thomas_wiedmann

Hi @lionelderkrikor

 

yes, "Extract Makro" operator will do the job. I will rebuild my process...

 

Thanks!

Thomas