https://communities.sas.com/t5/SAS-Programming/Why-is-the-answer-quot-unknown-quot/m-p/725154#M225203 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="tianerhu_0-1615386163684.png" style="width: 400px;"><img src="https://communities.sas.com/t5/image/serverpage/image-id/55772i87519889C60842EB/image-size/medium?v=v2&amp;px=400" role="button" title="tianerhu_0-1615386163684.png" alt="tianerhu_0-1615386163684.png" /></span></P> <P>Thank you.</P> Wed, 10 Mar 2021 14:56:19 GMT tianerhu 2021-03-10T14:56:19Z https://communities.sas.com/t5/SAS-Programming/Why-is-the-answer-quot-unknown-quot/m-p/725154#M225203 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="tianerhu_0-1615386163684.png" style="width: 400px;"><img src="https://communities.sas.com/t5/image/serverpage/image-id/55772i87519889C60842EB/image-size/medium?v=v2&amp;px=400" role="button" title="tianerhu_0-1615386163684.png" alt="tianerhu_0-1615386163684.png" /></span></P> <P>Thank you.</P> Wed, 10 Mar 2021 14:56:19 GMT https://communities.sas.com/t5/SAS-Programming/Why-is-the-answer-quot-unknown-quot/m-p/725154#M225203 tianerhu 2021-03-10T14:56:19Z https://communities.sas.com/t5/SAS-Programming/Why-is-the-answer-quot-unknown-quot/m-p/725157#M225205 <P>Because the value is "PILOT2", but the code compares to "Pilot2". Upper- and lowercase letters are different characters.</P> Wed, 10 Mar 2021 14:56:49 GMT https://communities.sas.com/t5/SAS-Programming/Why-is-the-answer-quot-unknown-quot/m-p/725157#M225205 Kurt_Bremser 2021-03-10T14:56:49Z https://communities.sas.com/t5/SAS-Programming/Why-is-the-answer-quot-unknown-quot/m-p/725178#M225211 <P>Thank you for your help.</P> Wed, 10 Mar 2021 16:00:06 GMT https://communities.sas.com/t5/SAS-Programming/Why-is-the-answer-quot-unknown-quot/m-p/725178#M225211 tianerhu 2021-03-10T16:00:06Z