Null data in not null column

From: Ingrid Voigt <giantpanda_at_gmx.net>
Date: Tue, 15 Apr 2014 17:53:58 +0200
Message-ID: <trinity-ac092608-ab1c-4262-8224-be0291748366-1397577237924_at_3capp-gmx-bs04>

Hi,
 
one of our customers' databases has a table with a not null column containing empty data. Do you know how this can be set up?

I need to copy the table (via exp/imp) and hit either ORA-01400 (when defining not null before insert) or ORA-02296 (when I insert first and later modify the column).  

More details:

Windows 2008 R2
Oracle 11.2.0.3 + Patch 27 (January 2014)

Table definition (more columns left out):

CREATE TABLE USR_USER
(

  OID           NUMBER(15)                      NOT NULL,
  ANZEIGE_NAME  VARCHAR2(40 BYTE)               DEFAULT ''                    NOT NULL,

)
TABLESPACE USERS; And the data:

> select oid, anzeige_name, '.'||anzeige_name||'.' from usr_user;

       OID ANZEIGE_NAME                             LENGTH(ANZEIGE_NAME)
---------- ---------------------------------------- --------------------
       223
       224

(more rows left out)

These are not strings consisting of spaces, but really empty ones, i.e. nulls.

Insert into the table without specifying anzeige_name also hits ORA-01400, the condition is active. The corresponding check constraint is enabled and validated.

I'd appreciate help in reproducing this.

Thank you.
Ingrid Voigt

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Received on Tue Apr 15 2014 - 17:53:58 CEST