title: Change variable length in SAS dataset
body: <p>I need to change the variable length in a existing dataset. I can change the format and informat but not the length. I get an error. The documentation says this is possible but there are no examples.</p>
  
  <p>Here is my issue. My data source could change so I don't want to pre define columns on import. I want to do a generic import and then look for certain columns and adjust the length.</p>
  
  <p>I have tried PROC SQL and DATA steps. It looks like the only way to do this is to recreate the dataset or the column. Which I don't want to do.</p>
  
  <p>Thanks,
  Donnie</p>