SDDM EA1 named not null constraint

When I try to use named constraints not null in 3.1 EA1, they are not generated in the DDL export.
They are appointed in the physical model column properties dialog box, but they are not included in the generated DDL. Instead of the name, a line break seems to be generated.

When I try this in 3.0 named constraints are correctly generated in the DDL.

Is this a bug or something has changed between versions?

Hello

I suspect that the option 'generate short form of NOT NULL' is defined constraints (on the Data Modeler/DDL tools/preferences page) in your EA1 3.1 installation?

This option is selected, the name of the constraint to be omitted from the DDL.

David

Tags: Database

Similar Questions

Distinguish NOT NULL constraints Check constraints

Join user_constraints to user_cons_columns for constraint_type = 'C' indicates the Check constraints, and NOT NULL constraints, but also (because those are implemented as Check constraints).

My question is how to filter constraints NOT NULL to let only the 'normal Check constraints '?

I tried WHERE SUBSTR(search_condition,-12,12) & LT; & GT; 'IS NOT NULL '.
but as search_condition is of type LONG, I can't use substring.

Has anyone already found it? Thank you!!

ByronBarton wrote:

Has anyone already found it?

Well, there is no easy way. Simple, if you always create named* validation constraints. If so, online NOT NULL constraint will get name generated and forced check no:

SQL> create table test_tbl(
  2                        c1 number not null,
  3                        c2 number,
  4                        constraint test_tbl_chk1
  5                          check(
  6                                c2 is not null
  7                               )
  8                       )
  9  /

Table created.

SQL> select  constraint_name,
  2          generated
  3    from  user_constraints
  4    where table_name = 'TEST_TBL'
  5  /

CONSTRAINT_NAME                GENERATED
------------------------------ --------------
SYS_C008666                    GENERATED NAME
TEST_TBL_CHK1                  USER NAME

SQL>

However, if the check constraint is not named we:

SQL> create table test_tbl(
  2                        c1 number not null,
  3                        c2 number,
  4                        check(
  5                              c2 is not null
  6                             )
  7                       )
  8  /

Table created.

SQL> select  constraint_name,
  2          generated
  3    from  user_constraints
  4    where table_name = 'TEST_TBL'
  5  /

CONSTRAINT_NAME                GENERATED
------------------------------ --------------
SYS_C008668                    GENERATED NAME
SYS_C008669                    GENERATED NAME

SQL>

Then, the only way I know is:

SQL> column owner format a10
SQL> column table_name format a10
SQL> column column_name format a10
SQL> select  u.name owner,
  2          t.name table_name,
  3          a.name column_name,
  4          c.name constraint_name,
  5          decode(k.type#,7,'NOT NULL',1,'CHECK CONSTRAINT','UNKNOWN') type
  6    from  sys.USER$ u,
  7          sys.CON$  c,
  8          sys.CDEF$ k,
  9          sys.OBJ$ t,
 10          sys.COL$ a,
 11          sys.CCOL$ r
 12    where u.name   = user
 13      and c.owner# = u.user#
 14      and k.con#   = c.con#
 15      and t.obj#   = k.obj#
 16      and t.name   = 'TEST_TBL'
 17      and a.obj#   = t.obj#
 18      and r.col#   = a.col#
 19      and r.con#   = k.con#
 20      and r.obj# = k.obj#
 21  /

OWNER      TABLE_NAME COLUMN_NAM CONSTRAINT_NAME                TYPE
---------- ---------- ---------- ------------------------------ ----------------
SCOTT      TEST_TBL   C1         SYS_C008668                    NOT NULL
SCOTT      TEST_TBL   C2         SYS_C008669                    CHECK CONSTRAINT

SQL>

SY.

The names of generated by the system, not null constraints are not entered
Hello:

After the test, I found that the names of system generated (SYS_C #, etc.) for constraints not null are not captured and placed in the not Null Constraint field 'Name' of DM during the import of the data dictionary.

In my view, that it is a bug. I'm doing something wrong?

Doc
Hi Doc,

We do not import the names of system generated and shaped (SYS_C # are not included in the generated DDL.) Model point of view, they are forced null nut without a name.

Philippe

Column mandatory (NOT NULL) constraint
Need not pre-existing NOT NULL constraint column label presented next to the default column, column name and data type, when you display a data model to engineering reverse for end users to review the provisions of tables. How and NOT on label NULL is generated for display of reverse engineering constraints?
I'm not sure to understand what you want - have marked the columns not null (required) on diagram (they are marked with ' *' character before the name of column) or not null constraint name printed on the diagram. I first thought that it is generation of DDL.

Philippe

delete NOT NULL constraint
I have an ABC table with column name a NON NULL value.

Name Null?
----------------------------------------- --------
A NULL VALUE IS NOT

I want to change the status of to have the deletion of NOT NULL constraint.
I need to use just command ALTER TABLE A

ALTER table ABC
Edit)
A number
);

but it does not work.
I was told that I have to use the EDIT CONSTRAINT instead of simply change.

Everyone mind show me some examples?

and also can someone show me how to remove if I go in Select * constraint... mode?
Thank you
Try this
```
Alter table abc
modify (mycolumn number null);
```

How to name a NOT NULL Constraint
Hi all

is there a way to Data Modeler SQL Developer to name a NULL value constraint is NOT?
For example, in the plain Oracle DDL I can:

create table x)
Number of y constraint x_y_nn not null
);

Thank you
Michael
Hi Michael,

You can set constraint information not null in physical model - tab dedicated in the dialog column to the physical model.

Philippe

Not Null constraint question
Hello

I have an interface with 9 columns so the constraint not Null.
I use the SQL command Append, LKM SQL for SQL and Oracle CKM IKM for my execution.

In case one of the columns violate the constraint not null interface don't is not wrong on however the error message is entered in the error table.

My requirement is that, in the case where one of the lines violated the constraint not null all the interface must be wrong on and data must be entered in error or table SNP_CHECK_TAB table.

Kindly help me to solve this problem.

Thank you
Hello Nidhi,

You must also keep the constraints of primary for the columns at the database level, and then maintain control of flow in IKM
Then, interface will receive error

For example:
1400: 23000: java.sql.SQLException: ORA-01400: cannot insert NULL into ('SCOTT'. "" "" EMP_TEST_TGT '. "" EMPNO")

Flow control is used to identify records that are not valid and must be removed from circulation. 'Rejected' records are then inserted into the table to store data associated with errors (E$). Interface will not get IT just error here
capture files in the error table and inserts a valid records in the target table.

When you keep the flow control, yes it runs successfully and he traks records that violate the constraint rules
in the table "E$ _XYZ.

Thank you
katukota

Published by: katukota on September 8, 2009 19:07

Constraint Unique NOT NULL in Data Modeling
I created unique constraints in the relational model and I am trying to figure out how to make a NOT NULL constraint.

Let's say the name of the table's category with cat_id, cat_name, sort columns.

I create in SQL 'category ALTER TABLE MODIFY (category CONSTRAINT NOT NULL xxx_cat_name_nn);', but there is no data entry point inside the Modeler in the [properties unique key - xxx_cat_name_nn] dialog box, that I can find, that allows me to tell him that it is a NOT NULL constraint. I'm sure that there is a way, but I just fall over my own feet, trying to find.

Any help would be greatly appricated.

Published by: 991065 on February 28, 2013 13:40
Hello

You can make the column NOT NULL by disabling the "Allow nulls" property for the column.
If you want a named STEP forced to NULL value, you must also set the property "Not Null Constraint Name" (under the default tab and the constraint of the column properties dialog box).

David

Add the constraint not NULL in the existing table that has null values

Hello
I want to add a constraint not null to and an existing table, but the table already contains values null in this column.
EMP
Emp_id name
1 axada
2
3 sdkdd
Here is already the data IE 2 empid is Null as name. I must add a fool of constraint not null which new values will not be null, but I don't want to change the data of exisitng alreadt which is null.

Hello

"The opposite": NOVALIDATE does not validate the data that is ALREADY in the table, but do not allow the insertion of a NULL value.

Have you tried my sample code?

CREATE TABLE MaTable (x NUMBER PRIMARY KEY, y NUMBER);

INSERT INTO myTable VALUES (1, 123);

INSERT INTO myTable VALUES ( 2, NULL );

INSERT INTO myTable VALUES (3, 456);

ALTER TABLE mytable MODIFY (y NOT NULL NOVALIDATE );

INSERT INTO myTable VALUES (4, 678);

INSERT INTO myTable VALUES ( 5, NULL );

SELECT * FROM MyTable;

'2' line was inserted with null before the creation of the NOT NULL constraint, this line remains "as what" at the end of the trial.

'5' line trying to insert a NULL value after creating the NOT NULL constraint, which is denied.

Best regards

Bruno.

Please let me know how I can add a new column with a constraint not null, table already has data, without falling off the table... Please help me on this issue...

Hello
I have an emp_job_det with a, b, c columns table. Note that this TABLE ALREADY has DATA OF THESE COLUMNS
IAM now add a new column "D" with forced not null
Fistly I alter the table by adding the single column "D", if I do, the entire column would be created with alll of nulls for the column DEFAULT D
ALTER table emp_job_det Add number D; -do note not null CONSTRAINT is not added
Second... If I try to add the constraint not null, get an eoor as already conatained null values...
(GOLD)
In other words, if I put the query
ALTER table emp_job_det Add number D NOT NULL; -THROWS ERROR AS TABLE ALREADY CONTAINS DATA
So my question is how how can I add a new column with a constraint not null, table already has the data, without falling off the table
Please help me on this issue...

Add the column without constraint, then fill the column. Once all the rows in the table are given in the new column, and then add the constraint not null.

The doc is correct on the constraint not null and scan limited index full?
Gave birth to the large [url http://forums.oracle.com/forums/thread.jspa?messageID=9313643] another thread:

Jonathan Lewis wrote:
>

I wasn't expecting to see because the doc said about scan limited index full "...". and at least one column in the index key has the NOT NULL constraint,"which would be foolish to say if the rowid was what filled that. There are currently only 2 factory codes and code 1 company (not nulls - Oracle does know that?), so I was kind of expected Oracle to reorder the predicates with an index skip scan. Take a fresh look on the doc, I wonder if I should not specify the company code in the query and maybe spend employee and job_number in the index. I hope it's obvious that this index has been added for other queries. This request could be taken out a change in the requirements of anyway, but I don't know when.
If you wear it as a separate thread, I'll take a look.
Can you give a reference to the manual - the comment you quoted may not be correct.
Just below where Hemant pointed to in the other thread, http://download.oracle.com/docs/cd/E11882_01/server.112/e16508/indexiot.htm#sthref314

(Somehow I have the feeling that we had this conversation before, perhaps in a forum that no longer exists. "(Or was it all just a dream)."

Edit: Also seen in
http://download.Oracle.com/docs/CD/B28359_01/server.111/b28274/optimops.htm#i52044
http://download.Oracle.com/docs/CD/B14117_01/server.101/b10752/optimops.htm#51111
http://download.Oracle.com/docs/CD/F49540_01/doc/server.815/a67781/c20b_ops.htm#11004
http://download.Oracle.com/docs/CD/B19306_01/server.102/b14211/optimops.htm#i52044

and everything on the net.

Edited by: jgarry 26 January 2011 17:41
2nd edition: link fix that edit may 1 have ransacked.

Edited by: jgarry January 27, 2011 10:40
Joel,

I just had this 'already seen' (new) sense to speak of it.

Mentioning the reference 11.1 gave you:
This so obviously must be bad that I couldn't decide if I was proven wrong or was amazed to find that I couldn't he show the falsity. (Just because something is obvious, it does not mean it is true – Terry Pratchett.)

However, here is the obvious counter-example - that I came across 8.1.7.4 because it's the oldest version of Oracle that I have now:
```
create table t1
as
select
     rownum               id1,
     rownum               id2,
     rownum               id3,
     lpad(rownum,10,'0')     small_vc,
     rpad('x',100)          padding
from
     all_objects
where
     rownum <= 10000
;

create index t1_i1 on t1(id1, id2, id3);

begin
     dbms_stats.gather_table_stats(
          ownname           => user,
          tabname           =>'T1',
          cascade           => true

     );
end;
/

set autotrace traceonly explain

select
     /*+ index_ffs(t1) */
     id1, id3
from
     t1
where
     id2 = 99
;
```
No 'NOT NULL columns". But any line I will have a (non-null) value for id2, then it should be in the index - then Oracle should be able to do a full scan and get the right answer. Here is the map (I have no need of Council - but your configuration may be different):
```
Execution Plan
----------------------------------------------------------
   0      SELECT STATEMENT Optimizer=ALL_ROWS (Cost=4 Card=1 Bytes=12)
   1    0   INDEX (FAST FULL SCAN) OF 'T1_I1' (NON-UNIQUE) (Cost=4 Card=1 Bytes=12)
```
If you change the predicate to: "id2 is zero", then the only legal path is an analysis.

Concerning
Jonathan Lewis
http://jonathanlewis.WordPress.com
http://www.jlcomp.demon.co.UK

+ "I believe in the evidence. I believe in observation, measurement and reasoning, confirmed by independent observers. I'll believe anything, no matter how wild and ridiculous, if there is evidence for it. The wildest and most ridiculous something is, however, the firmer and more solid, the evidence should be. » +
Isaac Asimov

Not Null on the column of a primary key constraint
I came across a table defined in the same way to...

create table t (t_id int constraint nn_t_id not null constraint pk_t primary, data key number);

Of course, the primary key is the is not null, then is there a reason to add the redundant constraint not null?
There are two parts to your question, I think:

(1) why add a NOT NULL if a primary key is also reported.
(2) why is null is NOT a name defined by the user (in this case nn_t_id).

1 > I think you are right: there is no difference in behavior in the way that Oracle is going to reject the creation of NULL in this column (whether through the direct insert or update with a NULL value). I personally always declares the NOT NULL for columns, I know to never have null, regardless of whether the column is (member of) a PK.

It's pretty funny, btw, the SQL standard as chosen able to be the NULL default value. I think that we all type much less, if the SQL standard chose NOT NULL default value. But that's another story.

2 > I don't see given nullability defined by the user of the explicit names now and then, because of some "coding guideline' which dictates that constraint names must never be generated System. This guideline is often presented as a result of the exception handling of "client-side", where the constraint name is filtered SQLERRM and then more personalized to be displayed to the end user. However for NOT NULL constraint violations, I think (does not fully to check) that you are always thrown an ORA-01400 is an ORA-01407. Who nowadays both will tell you exactly (in SQLERRM) which column of this table is currently in violation of a NOT NULL constraint.

Toon

How can I Data Modeler does not generate constraints on NNC_ tables?

Hi all
Unfortunately I have not found the answer using Google ;-)
When I generate my DDL scripts on my model on some tables Data Modeler (version 4.0.0) automatically generates constraints on the columns of the table "NNC_" for example:
CREATE TABLE STG_DURCHGANGSKNOTEN
(
ID NUMBER CONSTRAINT NNC_STG_DURCHGANGSKNOTENv1_ID NOT NULL,
Kilometrierung VARCHAR2 (20) CONSTRAINT NNC_STG_DURCHGANGSKNOTENv1_Kilometrierung NOT NULL,
Letzte_Aenderung DATE CONSTRAINT NNC_STG_DURCHGANGSKNOTENv1_Letzte_Aenderung NOT NULL,
Knotentyp VARCHAR2 (100) CONSTRAINT NNC_STG_DURCHGANGSKNOTENv1_Knotentyp NOT NULL,
Name VARCHAR2 (100),
BZ_Bezeichner VARCHAR2 (100),
GUI_Bezeichner VARCHAR2 (100),
Spurplanabschnitt_ID NUMBER NNC_STG_DURCHGANGSKNOTENv1_Spurplanabschnitt_ID CONSTRAINT NOT NULL,.
XML_Document XMLTYPE
);
How can I avoid this? I like to just get something like this:
CREATE TABLE STG_DURCHGANGSKNOTEN
(
IDENTIFICATION NUMBER NOT NULL,
Kilometrierung VARCHAR2 (20) NOT NULL,
Letzte_Aenderung DATE NOT NULL,
Knotentyp VARCHAR2 (100) NOT NULL,
Name VARCHAR2 (100),
BZ_Bezeichner VARCHAR2 (100),
GUI_Bezeichner VARCHAR2 (100),
Spurplanabschnitt_ID NUMBER NOT NULL,
XML_Document XMLTYPE
);
Thank you
Matthias

Hi Matthias,

The NOT NULL Constraint clause appears likely because 'Not Null Constraint Name' property is set to the column. (It is indicated on the Panel "forced by default and ' in the column properties dialog box.)

To stop these products, you can go to the Data Modeler/DOF of the preferences page (on the Tools menu) and set the option 'generate short form of NO forced NULL.

Note that there now is a forum specifically for the Data Modeler: SQL Developer Data Modeler

David

Change the default value of column NOT NULL to NULL
Hi all
How can I change the default value of column not NULL to NULL?
Suppose I have run the following commands:
```
SQL> alter table hr.test modify temp_num2 default null;

Table altered.

SQL> desc hr.test;
 Name                            Null?    Type
 ----------------------------------------- -------- ----------------------------
 TEMP_NUM                             NUMBER
 TEMP_NUM2                       NOT NULL NUMBER
```
Why forced temp_num2 has not changed with the NULL value? I'm under 11.g rel2

Best regards
Valerie
You can NOT change the column constraint NULL to contain NULL values by:
```
alter table table_name modify column_name null; 
```
After this change, the column can contain null values. In Oracle, not null constraints are created automatically when not null is specified for a column. Similarly, they are deleted automatically when the column is changed to allow NULL values.

Columns not null showing that nullable in the table grid
I use 2.1.0.63 sql developer.
I ran the following in my diagram
```
  CREATE TABLE EXCLUDE_DATA 
   (OWNER       VARCHAR2(30), 
    TABLE_NAME  VARCHAR2(30), 
       COLUMN_NAME VARCHAR2(30), 
       CONSTRAINT CK_OWNER CHECK (owner IS NOT NULL) ENABLE, 
       CONSTRAINT CK_TABLE_NAME CHECK (table_name IS NOT NULL) ENABLE
   );
 
 COMMENT ON TABLE EXCLUDE_DATA IS 'Tables and Columns to exclude from the column checker';
 COMMENT ON COLUMN EXCLUDE_DATA.OWNER IS 'The schema that contains the table';
 COMMENT ON COLUMN EXCLUDE_DATA.TABLE_NAME IS 'The table name to be excluded from the column checker';
 COMMENT ON COLUMN EXCLUDE_DATA.COLUMN_NAME IS 'The column on the table to be excluded.  If null then the whole table is excluded';

  CREATE UNIQUE INDEX UK_EXCLUDE_DATA ON EXCLUDE_DATA (OWNER, TABLE_NAME, COLUMN_NAME);
```
When the name of the table is selected, and the tab for the column that is selected in the main window it's showng columns as nullable (see below)
```
OWNER     VARCHAR2(30 BYTE)     Yes          1     The schema that contains the table
TABLE_NAME     VARCHAR2(30 BYTE)     Yes          2     The table name to be excluded from the column checker
COLUMN_NAME     VARCHAR2(30 BYTE)     Yes          3     The column on the table to be excluded.  If null then the whole table is excluded
```
The constraints are there however, it looks like a potential problem with just this window.
CeeJay

Adding a not null to a column check constraint does not have the non-nullable column.

Try instead this statement

CREATE TABLE EXCLUDE_DATA
(THE VARCHAR2 (30) IN OWNER NOT NULL,)
TABLE-NAME VARCHAR2 (30) NOT NULL,
COLUMN_NAME VARCHAR2 (30)
);

COMMENT on TABLE EXCLUDE_DATA IS "Tables and columns to exclude from the audit of the column;
COMMENT ON THE EXCLUDE_DATA COLUMN. OWNER IS 'of the schema that contains the table.
COMMENT ON THE EXCLUDE_DATA COLUMN. Table_name IS "the name of table to be excluded from the audit of the column;
COMMENT ON THE EXCLUDE_DATA COLUMN. Column_name IS ' column on the table to be excluded. If set to null, then the entire table is excluded. "

CREATE A UNIQUE UK_EXCLUDE_DATA ON EXCLUDE_DATA (OWNER, TABLE_NAME, COLUMN_NAME) INDEX;

The database AUTOMATICALLY adds check for columns NOT NULL constraints.

Hope this helps

Concerning
Chris

SDDM EA1 named not null constraint

Similar Questions

Maybe you are looking for