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since upgrade oracle from 12.1 to 19c contents of clob columns are wrong

edited Jun 8, 2020 3:11AM in Database Administration (MOSC) 3 commentsAnswered ✓

Hi,

seemingly since upgrade to Oracle 19c content of clob columns isn't inserted and retrieved correctly (special german characters like ä,ö,ü ß).

The handling of VARCHAR-columns has no problems. Writing and reading of the special characters as shown before are treated well. 

But dml with CLOB-columns doesn't work as expected, wrong values seems to be written and read.

The NLS-Parameter are the same as in 12.1.  No changes.

Here our environment :

- databases running on Oracle Linux 7

- characterset in OS is UTF-8

in database:

- NLS_NCHAR_CHARACTERSET =  AL16UTF16

- NLS_CHARACTERSET                =  WE8ISO8859P15

Are there known changes on handling with CLOB-columns ?

Greetings

Michael

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