CA Dynam for VSE User Guide

Defining File ID Option Codes
Defining File ID Option Codes
You can specify one-character file ID option codes as part of the JCL's DLBL
statement to indicate the disposition of a file. Option codes must be the last
field specified in the file ID and must be enclosed within parentheses. Multiple
option codes can be entered in any sequence within the parentheses, but must
be separated by commas as follows:
Format:
// DLBL filename,'file-id(option codes)',...
Example,
// DLBL FNAME,'DISK.FILE(A,B,C)'
CA Dynam/D eliminates the option codes and the parentheses from the file ID
before passing the file to IBM OPEN (this occurs for both CA Dynam/D and
non-CA Dynam/D controlled files).
Syntax Conventions
Syntax conventions are listed below:
• Separate option codes with a comma.
• Allow no intervening blank spaces.
• Enclose option codes within parentheses.
• Any syntax error found causes all option codes to be ignored.
• The file ID cannot be greater than 59 characters, including the option code
characters.
Common Syntax Errors
If CA Dynam/D encounters a syntax error while processing the option codes,
the parentheses and option codes are not eliminated from the file ID; CA
Dynam/D treats it as part of the file ID. Some examples of syntax errors
follow:
Extra comma between option codes
// DLBL FN,'FILE(S,,A)'
Missing comma between option codes
// DLBL FN,'FILE(BCD)'
4–14 User Guide