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jsuresh_kumar
New User
Joined: 24 Dec 2003
Posts: 2
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Hi All,
In JCL, For fixed length records LRECL is set equal to record length.
For Variable lenght records LRECL is set equal to size of the largest record length plus 4 bytes.
Example: If the Largest record length is 150. LRECL value is 154.
Could you please clarify me, why the extra 4 bytes added?
Thanks
Suresh. |
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sandip_datta
Active User
Joined: 02 Dec 2003
Posts: 150
Location: Tokyo, Japan
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Hello Jsuresh,
This 4 byte space is allocated for Record Descriptor Word (RDW). This contain actual length of the record. 
Regards,
Sandip. |
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jsuresh_kumar
New User
Joined: 24 Dec 2003
Posts: 2
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Thank you sandip...  |
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sandip_datta
Active User
Joined: 02 Dec 2003
Posts: 150
Location: Tokyo, Japan
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Actually RDW consists of 2 fields each having 2 bytes. The first field contains actual length including RDW in binary. The next field is reserved for future uses. Presently the second field contains zeroes.
Regards,
Sandip. |
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