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  • Subject: VARLEN vs "BLOCK" Storage
  • From: Michael Smith <msmith@xxxxxxxxxxx>
  • Date: Thu, 14 Jun 2001 07:13:42 -0500

My manager is considering developing a storage algorithm to store a variable length text field in a 32K record.
 
He plans to using a unique key field with a "pointer" into the 32K record; in essance "packing" multiple fields into one 32K block.
 
I have suggest that a better method would be to define the text field as VARLEN will an allocated length.
 
0001.00      A          R TEST00                               
0002.00      A            TEXT       32000          VARLEN(100)
        ****************** End of data *************************
 
My manager is concerned by the amount of storage that my suggestion would use... to much DASD" (as defined by the DSPFD command).
 
Has anyone ever developed/used the "block" method?
What other comments would you have on either approach?
 
TIA
 
Michael Smith          

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