The doc is correct on the constraint not null and scan limited index full?

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• 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.

• Addition of constraint not Null to a column that contains null values

  All,

  Could you please suggest me how to add the constraint not null to an existing column that has null values?

  SQL > create table nn (number n, s varchar2 (10));

  Table created.

  SQL > insert into nn values (1, 'test');

  1 line of creation.

  SQL > insert into values nn (2 '');

  1 line of creation.

  SQL > commit;

  Validation complete.

  SQL > alter table nn edit n number not null;

  Modified table.

  SQL > nn desc;

  Name                                      Null?    Type

  ----------------------------------------- -------- ----------------------------

  N NUMBER NOT NULL

  S                                                          VARCHAR2(10)

  SQL > alter table nn edit n number null.

  Modified table.

  SQL > nn desc;

  Name                                      Null?    Type

  ----------------------------------------- -------- ----------------------------

  N                                                  NUMBER

  S                                                  VARCHAR2(10)

  SQL > alter table nn change s varchar2 (10) not null;

  ALTER table nn change s varchar2 (10) not null

  *

  ERROR on line 1:

  ORA-02296: impossible to activate (SCOTT) - found null values

  SQL >

  Thank you

  Use NOVALIDATE:

  SQL > alter table nn change s varchar2 (10) not null;
  ALTER table nn change s varchar2 (10) not null
  *
  ERROR on line 1:
  ORA-02296: impossible to activate (SCOTT) - found null values

  SQL >
  SQL > alter table nn change s varchar2 (10) not null NOVALIDATE;

  Modified table.

  SQL > insert into values nn (3, null);
  insert into nn values (3, null)
  *
  ERROR on line 1:
  ORA-01400: cannot insert NULL into ('SCOTT'. "' NN '. » S »)

  SQL > select * from nn;

  N S
  ---------- ----------
  1 test
  2

  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

• Arabic font, it is not written in the correct way alphbet is not connected and he writes from left to right.  How can I solve this problem?

  Arabic font, it is not written in the correct way alphbet is not connected and he writes from left to right.  How can I solve this problem?

  CS6 and below: How to access the features of Arabic and Hebrew in Photoshop CS6 - YouTube

  Creative cloud. CC to CC 2015:

  First install the value in the parameter of English/Arabic language: change the language setting of your Cloud Creative applications

  Then enable Middle Eastern features in Photoshop: How to write in Arabic in Photoshop CC (and other adobe programs)

  I would like to know if it works.

  Gene

• HP OFFICEJET 4500: printer problem hp 4500 doen't pull paper from the bin, hp print and scan doctor did not help

  Paper printer problem hp 4500 doen't pull of the plateau, hp print and scan doctor did not help

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  http://support.HP.com/us-en/product/HP-OfficeJet-4500-all-in-one-printer-series---K710/4181269/document/c01969913/

• How to add constraints not null

  Data modeling Version 4.1.1.888 SQL

  How to add constraints not null in sql modeling data and rename the default constraint name that is getting generated when marking column as required.

  You can edit the template for the names of constraint not Null under properties-> setting->-> models naming standards. Change one marked 'not forced Null. Then, under preferences-> Data Modeler-> DDL, you must uncheck "generate short form constraint NOT NULL".

  

• Is there a way to distinguish constraint not null null, out-of-line one online?

  Dear maters,

  Could you please help me to answer the question: How can we distinguish non-null online constraints (non-null column option) not null out-of-line ones (constraints, defined at the table level)? Below is an example of what I mean.

  1. Create a table.
     CREATE TABLE TEST (ID NUMBER NOT NULL);

  At this point, we have created a table with the constraint. The constraint was automatically created because of the option ' not null ' in the column definition. Say that the constraint name is SYS_C00699573. We can get the information about this user/all/dba_constraint or user/all/dba_cons_columns views.

  1. ALTER table.
     ALTER TABLE TEST ADD CHECK ('ID' IS NOT NULL).

  Here, we have created the second constraint as well. Say his name is SYS_C00699574. The only difference between them is that the first is online, and the second constraint is not. Is not only the terminology: If you file online - the 'NOT NULL' option also expires the DDL of the table. This is serious: for example, optimizer Oracle does not the id as nullable column either. If you drop the second - nothing like that happens. Oracle therefore somehow difference between online and offline constraints.

  1. Drop out-of-line constraint. At this point the question arises: How can we distinguish who among the two constraints is online and who isn't? From dba_constraint/all/user or user/all/dba_cons_columns views constraints search exactly except their names.

  Does anyone have an idea? Any help is very appreciated.

  Thank you.

  If you go here:

  SELECT * FROM SYS. CDEF$ WHERE OBJ #= you_table_object_id

  You can see the TYPE # is different, one is 7 (non-null) is 1 (check).

• Constraint not null in several columns

  Hello

  I have a following the table with defination employee: -.

  CREATE TABLE EMPLOYEE)

  IDENTIFICATION NUMBER,

  FIRST NAME VARCHAR2 (100),

  MIDDLE_NAME VARCHAR2 (10),

  VARCHAR2 (100) LAST_NAME,.

  DATE OF BIRTH DATE);

  My requirement is that I want to have a constraint not null on all 3 columns by name.

  Something like

  change table employee modify NVL (name, NVL (MIDDLE_NAME LAST_NAME)) not null;

  How can I achieve this?

  modify used table add constraint emp_ck01 check (coalesce (first_name, middle_name, last_name) is not null);

  ?

• Scanner does not scan the using Windows fax and scan

  Hello

  I just bought a new PC Toshiba [win 7 Professional].

  The fax from Windows and research, who settled, scanning a single page as separate 3 files - he never analyzed correctly.

  My other PC [Win7] using Windows fax and scan is not this problem using the same scanner.

  Any ideas?

  I look forward to your response,

  Peter M2201

  Dear Palcouk

  Thank you for your reply,

  Before I tried your suggestion that looked very useful, I thought I would try first to upgrade the software.

  I checked for an update of the MS driver, found an and on installation, the problem is solved.

  Thank you for your suggestion and effort,

  Kind regards

  Peter2201

• Just updated again Firefox THE BROWSER NOT VISIBLE AND DO CAN NOT FIND IT anywhere PLEASE RESPOND IMMEDIATELY

  Just updated after receiving the message 2 days ago for updating firefox again (am away from page please do not ask which version... it is the most recent) there are NO visible BROWSER and cannot find anywhere. I'm not if tech savy I don't have to hunt for the basic functionality. If I understand what "browser" stand for: I understand that it is the place where you type in the necessary Web site? as in: www.nobrower.com please answer very simple and easy to understand language Jack

  One possible cause is security software (firewall) that blocks or limits Firefox or plugin-container process without informing you, possibly after the detection of changes (update) for the Firefox program.

  Delete all rules for Firefox in the list of permissions in the firewall and leave your firewall again ask permission to get full unlimited access to the internet for Firefox and the plugin-container and the update process.

  See:

  • https://support.Mozilla.com/kb/server+not+found
  • https://support.Mozilla.com/kb/firewalls

• When I send an email from my iPad Air to the recipients not Apple and tech photos using the camera icon, the photos are received very extended, larger than the viewing page. What I am doing wrong?

  When I send an email from my iPad Air and attach a photo usping the camera icon, it is received on the devices not Apple very extended and unable to be read. What I am doing wrong?

  You're probably doing nothing wrong.

  One thing to try is after inserting that tap photo images and then change the size. If it works, you have my CCC friend to thank for calling your issue to my attention.

  Tap.

  

  Tap.

  

  Receipt by e-mail.

  

• HP laptop, 2000 - 2a20CA: most of the programs (not answer) and forgot the administrator password

  HP laptop, 2000 - 2a20CA - Windows7 64 bit - Home Premium - Malwarebytes - ZoneAlarm

  For some reason, it crashes, several programs (not responding) Windows Explorer, Chrome, Thunderbird and others.

  Most of the time will not be Shut Down, suspended forever and having the press/off voltage.

  Did a Malware scan - nothing even with ZAlarm scan.

  Do CHK/DSK-

  Tried a repair with the repair disc

  Safe mode is alittle better, but it is slow and sometimes crashes.

  Finally, I forgot my administrator password.

  Tried to enter the CMD via the ERD and executed to delete my current password: -.

  copy c:\windows\system32\sethc.exe c:\

  copy c:\windows\system32\sethc.exe c:\windows\system32\cmd.exe

  (Yes)  But I got access denied - invites

  Would be a restoration of the system to an earlier cure my problems.

  Evidence of the problem of hanging and password question please.

  Thank you

  HP 2000-2a20CA, running Windows 10 laptop

  Hey @happypouch ,

  These options will wipe your HARD drive and data. I create a back up of your documents by using the Windows backup and restore options. Unfortunately, most people think to back up their files, after that it's too late, it is better to ask for now rather than later.

  Thank you.

• Fill with the previous 'not null' value ' Null' known values

  Hi all

  I have the following requirement to fill in missing values (null values) with the "Not null" values known previously available.

  Source of the example:

  Emp_Id	Start_Dt	LOC	Comm	Grade
  A101	01/01/2013	NJ	4000	B
  A101	15/03/2013	CA	4800
  A101

  15/05/2013

  3500C

  A101

  25/07/2013

  2500

  A101

  20/12/2013

  NY5800A

  A101

  14/02/2013

  5000

  A101

  20/05/2014

  DC6000A

  A101

  03/06/2014

  3600C

  A102

  24/05/2013

  THE5000A

  A102

  15/12/20134300

  Expected results values in columns LOC and grades:

  Emp_Id	Start_Dt	LOC	Comm	Grade
  A101	01/01/2013

  NJ4000BA101

  15/03/2013

  CA4800BA101

  15/05/2013

  CA3500CA101

  25/07/2013

  CA2500CA101

  20/12/2013

  NY5800AA101

  14/02/2013

  NY5000AA101

  20/05/2014

  DC6000AA101

  03/06/2014

  DC3600CA102

  24/05/2013

  THE5000AA102

  15/12/2013

  THE4300A

  Any suggestions would be helpful.

  Kind regards

  Arun

  Also, I think that this is a case of analytics. Last_value is perhaps the most appropriate function for the given task:

  Select emp_id

  start_dt

  last_value(loc ignore nulls) over (partition by emp_id arrested by start_dt) loc

  comm

  last_value(grade ignore nulls) about category (partition by emp_id arrested by start_dt)

  t