HPlogo Using KSAM XL and KSAM 64 > Chapter 2 Creating a KSAM File

Modifying Existing File Specifications While Copying

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A file equation can be used to modify file specifications of an existing file. The FCOPY subsystem can be used to copy data from an existing file into a new file using a back reference to the file equation for the new specifications. The following example copies data from the file DOC to a new KSAM XL file DOC1. The file type and key specifications for the new file are specified in the file equation. 

  FILE DOC1=DOC1;KSAMXL;KEY=(b,1,4)
  FCOPY FROM=DOC;TO=*DOC1;NEW



Loading Data to a KSAM64 File

Building a KSAM File Programmatically