DB2 FOR LUW / DB2FORLUW / A50 - DB2

When we use mixed codepage(such as 1363), altering column length
returns SQL0332N.
This happens because new value is regarded as single byte
codepage, instead of mixed codepage.
Please check the repro script and result like as follows.
-------------------------------------------
$ db2 create db test_db using codeset 1363 territory kr
DB20000I  The CREATE DATABASE command completed successfully.
$ db2 connect to test_db

   Database Connection Information

 Database server        = DB2/SUN64 10.5.9
 SQL authorization ID   = DBGUEST1
 Local database alias   = TEST_DB

$ db2 "create table instv.tsmacpt12 (???????? char(6) NOT NULL)"
DB20000I  The SQL command completed successfully.
$ db2 "insert into instv.tsmacpt12 values 'test12'"
DB20000I  The SQL command completed successfully.
$ db2 "alter table instv.tsmacpt12 alter column "????????" set
data type char(10)"
DB20000I  The SQL command completed successfully.
$ db2 "select * from instv.tsmacpt12"

????????
------------------------
SQL0332N  Character conversion from the source code page "1363"
to the target
code page "1126" is not supported.  SQLSTATE=57017

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* USERS AFFECTED:                                              *
* N/A                                                          *
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* PROBLEM DESCRIPTION:                                         *
* See Error Description                                        *
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* RECOMMENDATION:                                              *
* Upgrade to Db2 V10.5 FP10 or later.                          *
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not known / see Local fix

forerunner  : 
follow-up : IT24956 

Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :

23.03.2018
11.07.2018
11.07.2018