Required for code-set conversion

HCL OneDB™ products use the Code-Set Name-Mapping file to translate between code-set names and the more compact code-set numbers. You can use the registry file to find the hexadecimal values that correspond to code-set names or code-set numbers.

Most code-set conversion requires two code-set-conversion files. One file supports conversion of characters in code set A to their counterparts in code set B. Another supports the conversion in the return direction (from B to A). Such conversions are called two-way code-set conversions. For example, the code-set conversion between the CCSID 437 code set (hexadecimal 01b5 code number) and the CCSID 819 code set (or ISO8859-1 with a hexademical 0333 code number) requires the following two code-set-conversion files:
  • The 01b50333.cv file describes the mappings to use when HCL OneDB products convert characters in the CCSID 437 code set to those in the ISO8859-1 code set.
  • The 033301b5.cv file describes the mappings to use when HCL OneDB products convert characters in the ISO8859-1 code set to those in the CCSID 437 code set.

To be able to convert between these two code sets, the HCL OneDB product must be able to locate both these code-set-conversion object files. Performing the conversion on only one direction would result in mismatched characters. For more information about mismatched characters, see Perform code-set conversion.

The following table shows some of the code-set conversions that HCL OneDB products can support, along with their associated code-set-conversion source file names.

Source code set Target code set Code-set-conversion source file
ISO8859-1 Windows™ Code Page 1252 033304e4.cvo
Windows Code Page 1252 ISO8859-1 04e40333.cvo
ISO8859-1 HCL CCSID 850 03330352.cvo
HCL CCSID 850 ISO8859-1 03520333.cvo
Windows Code Page 1252 HCL CCSID 850 04e40352.cvo
HCL CCSID 850 Windows Code Page 1252 035204e4.cvo