Existing table: Add a field that must be unique or null, is - permit?

Similar Questions

• 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.

• I can cause a ticking a box to add 1 to a calculated field?  I have a field that summarizes the numbers entered in several previous fields and must be able to add '1' If a checkbox is enabled as well.

  I can cause a ticking a box to add 1 to a calculated field?  I have a field that summarizes the numbers entered in several previous fields and must be able to add '1' If a checkbox is enabled as well.

  My first sample: If all the checked Checkbox event.value wins 1

  My next sample: If one of the boxes is enabled event.value wins 1

  Event.Value =

  this.getField ("Check Box16") .isBoxChecked (0) |

  this.getField ("Check Box17") .isBoxChecked (0) |

  this.getField ("Check Box18") .isBoxChecked (0) |

  this.getField ("Check Box19") .isBoxChecked (0) |

  this.getField ("Check Box20") .isBoxChecked (0)

• Add the sequence to an existing table

  How can I add a sequence to an existing table in a new field called the User_Id? I use Oracle SQL Developer 3.0.04 version, and it provides an option to create a sequence that I did, called Log_Seq. So, I need to put this sequence in the Final_Log table under a column named User_Id. I'm stuck at this part. I'd appreciate any help I can get!

  Hello
  what you can do is to add a trigger on the table that make it work for you.

  For example:
  http://www.razorsql.com/features/oracle_add_sequence_trigger.html

  concerning
  Peter

• Add the cluster to an existing table in oracle

  Is it possible to add the cluster of an existing table? For example...

  I have a table:

  CREATE TABLE table_name)

  t_id number PRIMARY KEY,

  t_name varchar2 (50));

  Cluster:

  CLUSTER to CREATE my_cluster

  (c_id NUMBER) SIZE 100;

  Y at - it a command such as: ALTER TABLE t_name add CLUSTER my_cluster (t_id); or something like that?

  Because I want to table to look like this:

  CREATE TABLE table_name)

  t_id number PRIMARY KEY,

  t_name varchar2 (50))

  My_cluster (t_id) CLUSTER;

  And drop all the tables isn't really what I want to do.

  Thank you

  No,

  It is the reverse:

  A table can be stored as a segment of memory (the common way) or in a cluster.

  Will not be part of the table "in the cluster", but other parts outside.

  Please create a new table in the cluster and insert your data here.

  Sorry,

  Martin

• How can I add data file to an existing table on Oracle RAC ASM with no OMF? Thank you!

  How can I add data file to an existing table on Oracle RAC ASM with no OMF? Thank you!

  Hello

  So I guess you have some files in ASM, see your first existing file structure

  Select file_name

  from dba_data_files;

  and to add to an existing table, the example below (even if you're better sticking with OMFs!)-is that what you are looking for?

  SQL > create tablespace TEST1

  2 datafile '+ DATA' size 1 M;

  Created tablespace.

  SQL > select file_name in dba_data_files;

  FILE_NAME

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

  +Data/orcl2/datafile/users.259.859820983

  +Data/orcl2/datafile/undotbs1.258.859820983

  +Data/orcl2/datafile/SYSAUX.257.859820983

  +Data/orcl2/datafile/system.256.859820981

  +Data/orcl2/datafile/example.269.859821049

  +Data/orcl2/datafile/Test1.271.859843053

  6 selected lines.

  SQL > alter tablespace TEST1

  2 Add datafile ' + DATA / mynewfile01.dbf ' size 2 m;

  Tablespace altered.

  SQL > select file_name in dba_data_files;

  FILE_NAME

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

  +Data/orcl2/datafile/users.259.859820983

  +Data/orcl2/datafile/undotbs1.258.859820983

  +Data/orcl2/datafile/SYSAUX.257.859820983

  +Data/orcl2/datafile/system.256.859820981

  +Data/orcl2/datafile/example.269.859821049

  +Data/orcl2/datafile/Test1.271.859843053

  + DATA / mynewfile01.dbf

  Thank you

• How add us partition on an existing table?

  Hi gurus,

  What would be the best way to add a partition to an existing table?

  Is there a simple documentation for example?

  Thank you

  What would be the best way to add a partition to an existing table?

  Is there a simple documentation for example?

  Was it something you were ask in an interview?

  You cannot add a partition to a table unless this table is a partitioned table.

  The table is already partitioned? If so, after the DDL.

  The Oracle documentation has examples of adding partitions to a table that is already partitioned

  Partition management

  Adding Partitions

  This section explains how to manually add partitions of a partitioned table and explains why partitions can be added specifically for partitioned more indexes.

  Adding a Partition to a partitioned Table range

  Use of the ALTER TABLE ... ADD PARTITION statement to add a new partition at the end 'high' (the point after the last existing partition). To add a partition at the beginning or in the middle of a table, use the SPLIT PARTITION clause.

• Cannot add the partition to an existing table.

  Hello

  I don't add the partition to an existing table that is not partitioned, get the error as a type of data not valid, then I'm not find syntax errors.

  ALTER TABLE MESSAGEX_XCHANGE

  ADD THE PARTITION OF RANGE (LAST_MODIFY_TIMESTAMP)

  (

  PARTITION old_data VALUES LESS THAN (To_TIMESTAMP('27/02/2014','DD/MM/YYYY')),

  You see for VALUES LESS THAN (To_TIMESTAMP('28/02/2014','DD/MM/YYYY')) of the PARTITION

  );

  Error report:

  SQL error: ORA-00902: invalid data type

  1. 00000 - "invalid data type".

  * Cause:

  * Action:

  Thank you

  Manon...

  You get this error because your edit statement has an invalid syntax. In addition, you cannot partition a table that is not already configured for partitioning!

  You have to physically re-create the partitioned table in order to add new partitions to it.

• Add the column to an existing table-based user-defined type

  Hello guys,.
  I am compiling my function that returns a type defined by the user based on an existing table. Throughout the process of initialization so my query returns an additional column - SCORE (1). Here is my package:
  
  create or replace
  PACKAGE STAFF_AGENCY_PKG AS
  
  TYPE TYPE_SEEKER_TABLE IS TABLE OF THE DRAW. SEEKER % ROWTYPE;
  FUNCTION GET_SEEKERS (IN_KEYWORD IN VARCHAR2)
  TYPE_SEEKER_TABLE RETURN PIPELINE;
  
  END STAFF_AGENCY_PKG;
  -------
  
  create or replace
  STAFF_AGENCY_PKG PACKAGE BODY
  AS
  
  FUNCTION GET_SEEKERS (IN_KEYWORD IN VARCHAR2)
  TYPE_SEEKER_TABLE RETURN PIPELINE
  IS
  R_TBL TYPE_SEEKER_TABLE; -to return
  BEGIN
  FOR R IN)
  SELECT Seeker.SEEKER_ID,
  Seeker.FIRSTNAME,
  Seeker.LASTNAME,
  Seeker.NATIONALITY,
  Seeker.ISELIGIBLE,
  Seeker.BIRTHDATE,
  Seeker.ISRECIEVEEMAILS,
  Seeker.HIGHESTDEGREE,
  Seeker.ETHNICITY,
  Seeker.GENDER,
  Seeker.ISDISABILITY,
  Seeker.DISABILITY,
  Seeker.CV,
  Seeker.PASSWORD,
  Seeker.PREFFERED_CITY,
  SEEKER. E-mail
  SEEKER. JOB_PREFERENCES_ID,
  SCORE (1)
  THE APPLICANT Seeker
  WHERE CONTAINS (CV, ' < query >)
  < textquery lang 'grammar' = 'context' = > ' |
  GET_RELATED_CATEGORIES (IN_KEYWORD) |
  ' < / textquery >
  < score datatype = "INTEGER" / >
  (< / query > ', 1) > 0
  )
  LOOP
  PIPE ROW (R); -Error (38,10): PLS-00382: expression is of the wrong type
  END LOOP;
  RETURN;
  
  END GET_SEEKERS;
  END STAFF_AGENCY_PKG;
  
  How do I change my user type to be sufficient?
  
  Oracle version 11.2.0.1.0
  Thanks in advance!

  >
  How do I change my user type to be sufficient?
  >
  You will need to create two new TYPEs. The one who has all the columns of the draw. The REQUESTOR table and the new column SCORE, then a TYPE which is an array of the first type.

  See example 12-22 using a Pipelined Table function for a Transformation in the PL/SQl language reference

  http://docs.Oracle.com/CD/B28359_01/AppDev.111/b28370/tuning.htm#i53120

  Here's the first part

  -- Define the ref cursor types and function
  CREATE OR REPLACE PACKAGE refcur_pkg IS
    TYPE refcur_t IS REF CURSOR RETURN employees%ROWTYPE;
    TYPE outrec_typ IS RECORD (
      var_num    NUMBER(6),
      var_char1  VARCHAR2(30),
      var_char2  VARCHAR2(30));
    TYPE outrecset IS TABLE OF outrec_typ;
   FUNCTION f_trans(p refcur_t)
        RETURN outrecset PIPELINED;
  END refcur_pkg;
  /
  
  CREATE OR REPLACE PACKAGE BODY refcur_pkg IS
    FUNCTION f_trans(p refcur_t)
     RETURN outrecset PIPELINED IS
      out_rec outrec_typ;
      in_rec  p%ROWTYPE;
    BEGIN
  

  Change

    TYPE outrec_typ IS RECORD (
      var_num    NUMBER(6),
      var_char1  VARCHAR2(30),
      var_char2  VARCHAR2(30));
    TYPE outrecset IS TABLE OF outrec_typ;
  

  to include all the columns you need. Unfortunately, you have to manually list all the columns in the draw. The REQUESTOR table. If you think you need this same structure in other places you must create them as SQL types instead of PL/SQL types.

  This example should be enough to show you how to modify your code to do something similar.

• to add more fields to a report just below existing fields

  Hello
  

  there is report in which the following fields are displayed
  
  jobnumber   customername  rig              well  
   124             abc                 r-90            w-10
  
  
  the requiremnt is to add more fields  and place them just below the above fields
  this enitre thing is in  a main frame  say M_GP
  the job number ,customer name is in another main frame  say M_HD
  and the data 124 etc is in a  repeating frame R_date
  
  ie M_GP encloses M_HD and R_date
  
  kindly guide as to how to include the remaining fields just below these fields so tht the 
  output looks like this
  
  jobnumber   customername  rig              well  
   124             abc                 r-90            w-10
  
  contract    material SIR service_SIR     Service_or_num
  12455         48878        9909090           28278
  
  all these fields r part of the same query and same table
  
  
       select OPN_JOB_DESC  "Job Number",
  ENTRY_DATE "Date",
  RIG "Rig",
  WELL "Well"
  ,JOB || '-'  || JOB_TYPE  "Job Type",
  CUSTOMER_NAME "Customer",
  SERVICE_ORDER_NUM "Service Order No:",
  MATERIAL_SEQ   "Material SIR",
  SERVICE_SEQ      "Service SIR",
  CONTRACT           "Contract"
  from xxnp_opn_joblog_001
   where OPN_JOB_DESC =:P_JOB_NUMBER

  kindly Guide
  
  thanking in advance

  Hello
  Keep the labels and fields both repeating frame and define the position that you have demonstrated.

  -Clément

• I can add a column to an existing table with the data.

  Hello
  
  I'm working on
  The Version of database: Oracle 9i
  
  I can add a column to an existing table that already has data with below given command.
  
  ALTER TABLE table_name
  ADD the definition of the column_name column;
  
  Kind regards
  John

  Add to that:

  If your new column is NOT "null", you need the task in 3 steps:

  1. Add the column without a NOT NULL constraint
  2. the default value of the new column added.
  3. Add the NOT NULL constraint in the new column.

  concerning
  AJ

• Windows mail. When sending a new email, I want to use the BCC field, that I can not select because it is not on the new Message. __How make CCB to come when I create a new message? This something __Is I can add tools please?

  Windows mail. When sending a new email, I want to use the BCC field, that I can not select because it is not on the new Message.
  How can I get the future BCC when I create a new message?
  Can I add tools please?

  Thanks for the reply Bruce Hagen. I am very grateful.

  Dave.

  In a new message window: view | All the headers. Check it out. Or, simply click on the button to easily add to your contacts list to: To, CC, or BCC.

  Bruce Hagen ~ MS - MVP [Mail]

• ADOBE Acrobat Pro DC - add lines to an existing table

  Hello. I have an existing table, I need to add lines.  Is this possible? Thanks in advance.

  It is very difficult to do something like this in a PDF file (unless it was created using LiveCycle Designer).

  You will be better off by changing the original file, and then creating a new PDF from it.

• How to add the new column in existing table to our desired location?

  How to add the new column in existing table to our desired location?

  For example, I have to add the new column 'course' before the salary column in the emp table.

  I think the best way is to add the column at the end of the table and create a new view with the order of the columns...

  Another option...

  places the data into a temporary table and recreate the table with the correct order of the columns, and then insert data to the table from the temporary table

  Refer

  Add column (from table) in the desired position

  Example:

  CREATE TABLE temp_my_user LIKE)

  SELECT * FROM password);

  DROP TABLE password;

  (Password) CREATE TABLE

  userID NUMBER

  , first name VARCAHR2 (25)

  , middleInitial VARCHAR2 (1)

  (, name VARCHAR2 (25));

  INSERT INTO password (userID, firstName, lastName)

  (SELECT username

  first name

  lastName

  OF temp_my_user);

  DROP TABLE temp_user;

• How to connect to an Adobe Javascript(Folder Level Script) SAP Web Service and retrieve the response in a table of the Adobe Javascript/AcroJS. Could you please it explain with an example. I have two required input parameters that must be filled.

  How to connect to an Adobe Javascript(Folder Level Script) SAP Web Service and retrieve the response in a table of the Adobe Javascript/AcroJS. Could you please it explain with an example. I have two required input parameters that must be filled.

  I s generic SOAP example/tutorial on my blog: get a serial number in a form using SOAP - KHKonsulting LLC

  The web service uses only a single parameter, but you should be able to adapt the code to two arguments without problems.