IBM SC41-5210-04 Server User Manual


 
For example, the language sequence is used to initialize the Define Collating Sequence display if there is
no previously defined sequence for the query and the default sequence from the query-users profile is
converted with warnings about the use of substitution characters.
Query for iSeries warns you on the Select Collating Sequence display when the sequence previously
defined for this query cannot be converted. You can find out why the language sequence or a user-defined
default sequence was not used by pressing F15 (Language sequence) or F16 (Use default) on the Define
Collating Sequence display.
Getting a list of formats or members with text in Query for iSeries
If a member or format-text description cannot be converted to the job CCSID, blanks are shown.
If the descriptive text is not displayed in a list display, press F11.
Saving a Query for iSeries query definition
Conversion may be required when an access plan is built to be saved with the query. This can cause
previously undetected compatibility problems, and you are asked to confirm saving the query definition
with errors.
Running a Query for iSeries query
Each position of every value that cannot be converted to the job or document CCSID is printed or
displayed as a plus sign (+). Each position of a text string that cannot be converted is printed or displayed
as a dot (.). An edit word that cannot be converted is ignored (edit code J is used instead). This happens
regardless of the method used to run the query.
Note: The job CCSID is the CCSID of the job. It can be changed by the command CHGJOB CCSID().
Neither data nor text is converted when the output is directed to an existing file. If a field receiving data
has a different CCSID, output processing stops with a diagnostic before any records are added.
If you have done an override to a database file selected for input, Query for iSeries uses the new file
information, including the CCSID markings. This can cause the same kind of errors that would be
diagnosed at definition time.
If you do nothing to cause the access plan to be rebuilt (see Access plans in Query for iSerieson
page 232), you can get errors if a file is replaced with a file in a format that requires no level check, but
has different CCSID characteristics.
Running a default query in Query for iSeries
When you run the default query for a file, the job or document CCSID and other conversions can fail. For
example, the file could be a logical file involving concatenation of fields with different CCSIDs or you may
be using a query profile with an incompatible collating sequence default.
Selecting records at run time in Query for iSeries
You can do run-time record selection if the process (job) CCSID and the query definition CCSID are the
same, if either is marked with a CCSID of 65535 (do not convert), or if the query definition is not marked.
Table 12 on page 252 shows when record selections can be changed at run time and how the constants
are treated.
Appendix E. Coded character set identifiers (CCSIDs) in Query for iSeries 251
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