Can I create constraints "Primary key - Foreign key" on materialized views?

Hello!
Can I create constraints "Primary key - Foreign key" on materialized views like on tables?
My purpose - is to make DB schema "COPY" with set of materialized views or tables, which take data from time to time from other tables situated.into another schema "ORIGINAL".
Also - I want to use reporting tool, like Crystal Reports, to make nice reports from schema "COPY". To make nice reports, I need primary-foreign relationships between materialized views or tables in schema "COPY".
Is it possible to use materialized views?
Or I should use only tables to get such result?
Thank you in advance.
Edited by: kogotok1 on Dec 3, 2010 5:01 PM

What happens when you try it? Or search the manuals.
http://download.oracle.com/docs/cd/E11882_01/server.112/e17118/statements_6002.htm#i2105365
http://download.oracle.com/docs/cd/E11882_01/server.112/e10706/repmview.htm#REPLN360

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Why create a primary key on a VIEW?

One of our developers found that you can establish a primary key on a VIEW. What are the circumstances which would warrant something like that?
--=Chuck

http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:636499119911
Tom,
I am a bit confused about Constraints on Views. As per the documentation, they are not enforced. So
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As per "SQL Reference" documentation :
<QUOTE>
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</QUOTE>
Thanks for your time.
Followup February 5, 2002 - 11am Central time zone:
They are used for complex query rewrites with materialized views and such. It is more "meta data"
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"

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I have a problem with a primary key on a view
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http://download-uk.oracle.com/docs/cd/B10501_01/server.920/a96540/statements_85a.htm#2065512
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Message was edited by: Maheswaran B

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EdStevens Wrote:
And what is wrong with using a remote connection?
Ideally I would like to implement it in an API tool that would create Oracle Databases for an API with specific prescriptions once give DBName and Password .
Thus I think for an API tool to create remote shell connection maybe is an anti-pattern from Software Architecture
e.g. I already red from Microsoft Doc that PSEXEC is sometime blocked from antiviruses
But it was just a question, I may not do it, as informed, that companies having Oracle DB, usually have an Oracle DBA, and an Oracle DBA some times may not let anyone touch the Databases on the Server. Also Oracle DB Server might be on different Operating Systems while the API tool will always be Windows
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Sorry I just finished my University and make my 1st internship on the Oracle DB Layer of Applications in Western Europe.
P.S.
There is no such a need but I would find it a personal good exercise in understanind these connections-administration issues under different OS to try create an API tool that creates DB on other PC of different OS once you chosen the OS of the Server.
+ I promess not to follow it with a flood of threads agains : P I already became better in finding what I need through docs, lol

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Hi everybody,
I am wondering if there is such thing as primary key for a view? Assuming, that my view is based on a single table and it's just a subset of columns (some of them renamed) including PK of the table it's based on.
The reason for my question is this - we're using Reverse POCO generator which automatically generates C# Model class and Configuration file for our tables and views. For the view is lists all the columns as a key and therefore I obviously can not use normal
way of updating that view. I posted that as an issue here https://efreversepoco.codeplex.com/workitem/115 but I am thinking there is no such thing as the "primary key" for a view.
The query used to generate the classes is extremely complex already but may be it can be modified to get the PK ?
SELECT [Extent1].[SchemaName],
[Extent1].[Name] AS TableName,
[Extent1].[TABLE_TYPE] AS TableType,
[UnionAll1].[Ordinal],
[UnionAll1].[Name] AS ColumnName,
[UnionAll1].[IsNullable],
[UnionAll1].[TypeName],
ISNULL([UnionAll1].[MaxLength],0) AS MaxLength,
ISNULL([UnionAll1].[Precision], 0) AS Precision,
ISNULL([UnionAll1].[Default], '') AS [Default],
ISNULL([UnionAll1].[DateTimePrecision], '') AS [DateTimePrecision],
ISNULL([UnionAll1].[Scale], 0) AS Scale,
[UnionAll1].[IsIdentity],
[UnionAll1].[IsStoreGenerated],
CASE WHEN ([Project5].[C2] IS NULL) THEN CAST(0 AS BIT)
ELSE [Project5].[C2]
END AS PrimaryKey
FROM (
SELECT QUOTENAME(TABLE_SCHEMA) + QUOTENAME(TABLE_NAME) [Id],
TABLE_SCHEMA [SchemaName],
TABLE_NAME [Name],
TABLE_TYPE
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE IN ('BASE TABLE', 'VIEW')
) AS [Extent1]
INNER JOIN (
SELECT [Extent2].[Id] AS [Id],
[Extent2].[Name] AS [Name],
[Extent2].[Ordinal] AS [Ordinal],
[Extent2].[IsNullable] AS [IsNullable],
[Extent2].[TypeName] AS [TypeName],
[Extent2].[MaxLength] AS [MaxLength],
[Extent2].[Precision] AS [Precision],
[Extent2].[Default],
[Extent2].[DateTimePrecision] AS [DateTimePrecision],
[Extent2].[Scale] AS [Scale],
[Extent2].[IsIdentity] AS [IsIdentity],
[Extent2].[IsStoreGenerated] AS [IsStoreGenerated],
0 AS [C1],
[Extent2].[ParentId] AS [ParentId]
FROM (
SELECT QUOTENAME(c.TABLE_SCHEMA) + QUOTENAME(c.TABLE_NAME) + QUOTENAME(c.COLUMN_NAME) [Id],
QUOTENAME(c.TABLE_SCHEMA) + QUOTENAME(c.TABLE_NAME) [ParentId],
c.COLUMN_NAME [Name],
c.ORDINAL_POSITION [Ordinal],
CAST(CASE c.IS_NULLABLE
WHEN 'YES' THEN 1
WHEN 'NO' THEN 0
ELSE 0
END AS BIT) [IsNullable],
CASE WHEN c.DATA_TYPE IN ('varchar', 'nvarchar', 'varbinary')
AND c.CHARACTER_MAXIMUM_LENGTH = -1 THEN c.DATA_TYPE + '(max)'
ELSE c.DATA_TYPE
END AS [TypeName],
c.CHARACTER_MAXIMUM_LENGTH [MaxLength],
CAST(c.NUMERIC_PRECISION AS INTEGER) [Precision],
CAST(c.DATETIME_PRECISION AS INTEGER) [DateTimePrecision],
CAST(c.NUMERIC_SCALE AS INTEGER) [Scale],
c.COLLATION_CATALOG [CollationCatalog],
c.COLLATION_SCHEMA [CollationSchema],
c.COLLATION_NAME [CollationName],
c.CHARACTER_SET_CATALOG [CharacterSetCatalog],
c.CHARACTER_SET_SCHEMA [CharacterSetSchema],
c.CHARACTER_SET_NAME [CharacterSetName],
CAST(0 AS BIT) AS [IsMultiSet],
CAST(COLUMNPROPERTY(OBJECT_ID(QUOTENAME(c.TABLE_SCHEMA) + '.' + QUOTENAME(c.TABLE_NAME)), c.COLUMN_NAME, 'IsIdentity') AS BIT) AS [IsIdentity],
CAST(COLUMNPROPERTY(OBJECT_ID(QUOTENAME(c.TABLE_SCHEMA) + '.' + QUOTENAME(c.TABLE_NAME)), c.COLUMN_NAME, 'IsComputed')
| CASE WHEN c.DATA_TYPE = 'timestamp' THEN 1
ELSE 0
END AS BIT) AS [IsStoreGenerated],
c.COLUMN_DEFAULT AS [Default]
FROM INFORMATION_SCHEMA.COLUMNS c
INNER JOIN INFORMATION_SCHEMA.TABLES t
ON c.TABLE_CATALOG = t.TABLE_CATALOG
AND c.TABLE_SCHEMA = t.TABLE_SCHEMA
AND c.TABLE_NAME = t.TABLE_NAME
AND t.TABLE_TYPE IN ('BASE TABLE', 'VIEW')
) AS [Extent2]
UNION ALL
SELECT [Extent3].[Id] AS [Id],
[Extent3].[Name] AS [Name],
[Extent3].[Ordinal] AS [Ordinal],
[Extent3].[IsNullable] AS [IsNullable],
[Extent3].[TypeName] AS [TypeName],
[Extent3].[MaxLength] AS [MaxLength],
[Extent3].[Precision] AS [Precision],
[Extent3].[Default],
[Extent3].[DateTimePrecision] AS [DateTimePrecision],
[Extent3].[Scale] AS [Scale],
[Extent3].[IsIdentity] AS [IsIdentity],
[Extent3].[IsStoreGenerated] AS [IsStoreGenerated],
6 AS [C1],
[Extent3].[ParentId] AS [ParentId]
FROM (
SELECT QUOTENAME(c.TABLE_SCHEMA) + QUOTENAME(c.TABLE_NAME) + QUOTENAME(c.COLUMN_NAME) [Id],
QUOTENAME(c.TABLE_SCHEMA) + QUOTENAME(c.TABLE_NAME) [ParentId],
c.COLUMN_NAME [Name],
c.ORDINAL_POSITION [Ordinal],
CAST(CASE c.IS_NULLABLE
WHEN 'YES' THEN 1
WHEN 'NO' THEN 0
ELSE 0
END AS BIT) [IsNullable],
CASE WHEN c.DATA_TYPE IN ('varchar', 'nvarchar', 'varbinary')
AND c.CHARACTER_MAXIMUM_LENGTH = -1 THEN c.DATA_TYPE + '(max)'
ELSE c.DATA_TYPE
END AS [TypeName],
c.CHARACTER_MAXIMUM_LENGTH [MaxLength],
CAST(c.NUMERIC_PRECISION AS INTEGER) [Precision],
CAST(c.DATETIME_PRECISION AS INTEGER) AS [DateTimePrecision],
CAST(c.NUMERIC_SCALE AS INTEGER) [Scale],
c.COLLATION_CATALOG [CollationCatalog],
c.COLLATION_SCHEMA [CollationSchema],
c.COLLATION_NAME [CollationName],
c.CHARACTER_SET_CATALOG [CharacterSetCatalog],
c.CHARACTER_SET_SCHEMA [CharacterSetSchema],
c.CHARACTER_SET_NAME [CharacterSetName],
CAST(0 AS BIT) AS [IsMultiSet],
CAST(COLUMNPROPERTY(OBJECT_ID(QUOTENAME(c.TABLE_SCHEMA) + '.' + QUOTENAME(c.TABLE_NAME)), c.COLUMN_NAME, 'IsIdentity') AS BIT) AS [IsIdentity],
CAST(COLUMNPROPERTY(OBJECT_ID(QUOTENAME(c.TABLE_SCHEMA) + '.' + QUOTENAME(c.TABLE_NAME)), c.COLUMN_NAME, 'IsComputed')
| CASE WHEN c.DATA_TYPE = 'timestamp' THEN 1
ELSE 0
END AS BIT) AS [IsStoreGenerated],
c.COLUMN_DEFAULT [Default]
FROM INFORMATION_SCHEMA.COLUMNS c
INNER JOIN INFORMATION_SCHEMA.VIEWS v
ON c.TABLE_CATALOG = v.TABLE_CATALOG
AND c.TABLE_SCHEMA = v.TABLE_SCHEMA
AND c.TABLE_NAME = v.TABLE_NAME
WHERE NOT (
v.TABLE_SCHEMA = 'dbo'
AND v.TABLE_NAME IN ('syssegments', 'sysconstraints')
AND SUBSTRING(CAST(SERVERPROPERTY('productversion') AS VARCHAR(20)), 1, 1) = 8
) AS [Extent3]
) AS [UnionAll1]
ON (0 = [UnionAll1].[C1])
AND ([Extent1].[Id] = [UnionAll1].[ParentId])
LEFT OUTER JOIN (
SELECT [UnionAll2].[Id] AS [C1],
CAST(1 AS BIT) AS [C2]
FROM (
SELECT QUOTENAME(tc.CONSTRAINT_SCHEMA) + QUOTENAME(tc.CONSTRAINT_NAME) [Id],
QUOTENAME(tc.TABLE_SCHEMA) + QUOTENAME(tc.TABLE_NAME) [ParentId],
tc.CONSTRAINT_NAME [Name],
tc.CONSTRAINT_TYPE [ConstraintType],
CAST(CASE tc.IS_DEFERRABLE
WHEN 'NO' THEN 0
ELSE 1
END AS BIT) [IsDeferrable],
CAST(CASE tc.INITIALLY_DEFERRED
WHEN 'NO' THEN 0
ELSE 1
END AS BIT) [IsInitiallyDeferred]
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS tc
WHERE tc.TABLE_NAME IS NOT NULL
) AS [Extent4]
INNER JOIN (
SELECT 7 AS [C1],
[Extent5].[ConstraintId] AS [ConstraintId],
[Extent6].[Id] AS [Id]
FROM (
SELECT QUOTENAME(CONSTRAINT_SCHEMA) + QUOTENAME(CONSTRAINT_NAME) [ConstraintId],
QUOTENAME(TABLE_SCHEMA) + QUOTENAME(TABLE_NAME) + QUOTENAME(COLUMN_NAME) [ColumnId]
FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE
) AS [Extent5]
INNER JOIN (
SELECT QUOTENAME(c.TABLE_SCHEMA) + QUOTENAME(c.TABLE_NAME) + QUOTENAME(c.COLUMN_NAME) [Id],
QUOTENAME(c.TABLE_SCHEMA) + QUOTENAME(c.TABLE_NAME) [ParentId],
c.COLUMN_NAME [Name],
c.ORDINAL_POSITION [Ordinal],
CAST(CASE c.IS_NULLABLE
WHEN 'YES' THEN 1
WHEN 'NO' THEN 0
ELSE 0
END AS BIT) [IsNullable],
CASE WHEN c.DATA_TYPE IN ('varchar', 'nvarchar', 'varbinary')
AND c.CHARACTER_MAXIMUM_LENGTH = -1 THEN c.DATA_TYPE + '(max)'
ELSE c.DATA_TYPE
END AS [TypeName],
c.CHARACTER_MAXIMUM_LENGTH [MaxLength],
CAST(c.NUMERIC_PRECISION AS INTEGER) [Precision],
CAST(c.DATETIME_PRECISION AS INTEGER) [DateTimePrecision],
CAST(c.NUMERIC_SCALE AS INTEGER) [Scale],
c.COLLATION_CATALOG [CollationCatalog],
c.COLLATION_SCHEMA [CollationSchema],
c.COLLATION_NAME [CollationName],
c.CHARACTER_SET_CATALOG [CharacterSetCatalog],
c.CHARACTER_SET_SCHEMA [CharacterSetSchema],
c.CHARACTER_SET_NAME [CharacterSetName],
CAST(0 AS BIT) AS [IsMultiSet],
CAST(COLUMNPROPERTY(OBJECT_ID(QUOTENAME(c.TABLE_SCHEMA) + '.' + QUOTENAME(c.TABLE_NAME)),
c.COLUMN_NAME, 'IsIdentity') AS BIT) AS [IsIdentity],
CAST(COLUMNPROPERTY(OBJECT_ID(QUOTENAME(c.TABLE_SCHEMA) + '.' + QUOTENAME(c.TABLE_NAME)),
c.COLUMN_NAME, 'IsComputed')
| CASE WHEN c.DATA_TYPE = 'timestamp' THEN 1
ELSE 0
END AS BIT) AS [IsStoreGenerated],
c.COLUMN_DEFAULT AS [Default]
FROM INFORMATION_SCHEMA.COLUMNS c
INNER JOIN INFORMATION_SCHEMA.TABLES t
ON c.TABLE_CATALOG = t.TABLE_CATALOG
AND c.TABLE_SCHEMA = t.TABLE_SCHEMA
AND c.TABLE_NAME = t.TABLE_NAME
AND t.TABLE_TYPE IN ('BASE TABLE', 'VIEW')
) AS [Extent6]
ON [Extent6].[Id] = [Extent5].[ColumnId]
UNION ALL
SELECT 11 AS [C1],
[Extent7].[ConstraintId] AS [ConstraintId],
[Extent8].[Id] AS [Id]
FROM (
SELECT CAST( NULL AS NVARCHAR (1)) [ConstraintId], CAST( NULL AS NVARCHAR (MAX)) [ColumnId] WHERE 1= 2
) AS [Extent7]
INNER JOIN (
SELECT QUOTENAME(c.TABLE_SCHEMA) + QUOTENAME(c.TABLE_NAME) + QUOTENAME(c.COLUMN_NAME) [Id],
QUOTENAME(c.TABLE_SCHEMA) + QUOTENAME(c.TABLE_NAME) [ParentId],
c.COLUMN_NAME [Name],
c.ORDINAL_POSITION [Ordinal],
CAST(CASE c.IS_NULLABLE
WHEN 'YES' THEN 1
WHEN 'NO' THEN 0
ELSE 0
END AS BIT) [IsNullable],
CASE WHEN c.DATA_TYPE IN ('varchar', 'nvarchar', 'varbinary')
AND c.CHARACTER_MAXIMUM_LENGTH = -1 THEN c.DATA_TYPE + '(max)'
ELSE c.DATA_TYPE
END AS [TypeName],
c.CHARACTER_MAXIMUM_LENGTH [MaxLength],
CAST(c.NUMERIC_PRECISION AS INTEGER) [Precision],
CAST(c.DATETIME_PRECISION AS INTEGER) AS [DateTimePrecision],
CAST(c.NUMERIC_SCALE AS INTEGER) [Scale],
c.COLLATION_CATALOG [CollationCatalog],
c.COLLATION_SCHEMA [CollationSchema],
c.COLLATION_NAME [CollationName],
c.CHARACTER_SET_CATALOG [CharacterSetCatalog],
c.CHARACTER_SET_SCHEMA [CharacterSetSchema],
c.CHARACTER_SET_NAME [CharacterSetName],
CAST(0 AS BIT) AS [IsMultiSet],
CAST(COLUMNPROPERTY(OBJECT_ID(QUOTENAME(c.TABLE_SCHEMA) + '.' + QUOTENAME(c.TABLE_NAME)),
c.COLUMN_NAME, 'IsIdentity') AS BIT) AS [IsIdentity],
CAST(COLUMNPROPERTY(OBJECT_ID(QUOTENAME(c.TABLE_SCHEMA) + '.' + QUOTENAME(c.TABLE_NAME)),
c.COLUMN_NAME, 'IsComputed')
| CASE WHEN c.DATA_TYPE = 'timestamp' THEN 1
ELSE 0
END AS BIT) AS [IsStoreGenerated],
c.COLUMN_DEFAULT [Default]
FROM INFORMATION_SCHEMA.COLUMNS c
INNER JOIN INFORMATION_SCHEMA.VIEWS v
ON c.TABLE_CATALOG = v.TABLE_CATALOG
AND c.TABLE_SCHEMA = v.TABLE_SCHEMA
AND c.TABLE_NAME = v.TABLE_NAME
WHERE NOT (
v.TABLE_SCHEMA = 'dbo'
AND v.TABLE_NAME IN ('syssegments', 'sysconstraints')
AND SUBSTRING(CAST(SERVERPROPERTY('productversion') AS VARCHAR(20)), 1, 1) = 8
) AS [Extent8]
ON [Extent8].[Id] = [Extent7].[ColumnId]
) AS [UnionAll2]
ON (7 = [UnionAll2].[C1])
AND ([Extent4].[Id] = [UnionAll2].[ConstraintId])
WHERE [Extent4].[ConstraintType] = N'PRIMARY KEY'
) AS [Project5]
ON [UnionAll1].[Id] = [Project5].[C1]
WHERE NOT ([Extent1].[Name] IN ('EdmMetadata', '__MigrationHistory'));
Thanks in advance.
UPDATE. I made a quick Google search and found this
http://stackoverflow.com/questions/1013333/entity-framework-and-sql-server-view/2715299#2715299
It sounds as an interesting idea to try although I am not sure it will work with POCO Generator. But I'm going to try it now anyway.
For every expert, there is an equal and opposite expert. - Becker's Law
My blog
My TechNet articles

UPDATE. Changing my view to be
USE [SiriusSQL_SysManager]
GO
/****** Object: View [dbo].[SiriusV_SalesPointsLicensesList] Script Date: 4/30/2015 1:28:54 PM ******/
DROP VIEW [dbo].[SiriusV_SalesPointsLicensesList]
GO
/****** Object: View [dbo].[SiriusV_SalesPointsLicensesList] Script Date: 4/30/2015 1:28:54 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
create view [dbo].[SiriusV_SalesPointsLicensesList]
as
select ISNULL(salespoint,'') as Salespoint
, CAST(loc_suffix as smallint) as Id
, CAST(descrip as varchar(25)) as [Description]
, cast(mode as tinyint) as Mode
, cast(is_access as bit) as AccessWare
, cast(is_adv_inv as bit) as AdvInventory
, cast(is_cw_crdt as bit) as CardwareCredit
, cast(is_debit as bit) as DebitWare
, cast(is_dir_net as bit) as DirectNet
, cast(is_fbquick as bit) as FBQuickService
, cast(is_fbtable as bit) as FBTableService
, cast(is_grpschd as bit) as ResourceScheduling
, cast(is_guests as bit) as Guests
, cast(is_pass as bit) as PassWare
, cast(is_pms as bit) as PMSInterface
, cast(is_rental as bit) as RentWare
, cast(is_dual as bit) as DualBook
, cast(is_pod as bit) as PodBook
, cast(is_private as bit) as PrivateBook
, cast(is_resrv as bit) as Reservations
, cast(is_teesht as bit) as TeeSheet
, cast(is_rungk as bit) as RunGKInSales
, cast(is_resseat as bit) as ReservedSeating
, cast(is_kcashls as bit) as KioskCashless
, cast(is_ksales as bit) as KioskSales
, cast(is_kwilcal as bit) as KioskWillCall
, cast(is_payplan as bit) as PaymentPlan
, cast(is_test as bit) as Test
from dbo.sales_pt
where hidden = 0 ;
GO
worked!!! I now have just salespoint as the Key.
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How can I use the SQL to create a primary key for a existing table?

create table a(bm number,mc varchar2(20));
when the table was created,i want to make the column bm as
the primary key and my SQL is "alter table a enable primary key bm",the system show
me error,how can I write the right one?

create table a(bm number,mc varchar2(20));
when the table was created,i want to make the column bm as
the primary key and my SQL is "alter table a enable primary key bm",the system show
me error,how can I write the right one? You do not have any primary key defined on your table yet, so, it does not make sense to enable it (if at all possible) !
You need to add PRIMARY KEY using something like this:
SQL> alter table a add constraint pk_a_bm primary key (bm) ;

How to create a primary key or foreign key

in the table student, sid should be the primary key
in the table prerequisite cnum should be the foreign key and prereq the primary key
please help me with the syntax thanks.

As I said in your other post, it's all in the docs, go first to http://tahiti.oracle.com and try to find the answer yourself
http://download-uk.oracle.com/docs/cd/B10501_01/server.920/a96540/clauses3a.htm#1002630

How can I be able to create a primary key in a Form on a Table with Report?

When I click the "Create" button, a form appears allowing me type in data for those columns. But primary key is not there. I really need to specify my primary key here also. Because the primary key for this table is a Serial Number, not just a sequence number.
I noticed that when I created this page earlier, the primary key was ruled out by default. I wish there is a way to accomplish this. Thanks!

Hello,
>> a pk field is not null implicit …
I’m not sure I understand your statement. Every item, including the one holds the primary key, is null for a new form. The question is, when you are filling the form, how to populate this field. The APEX wizard assumes this field will be populated by the system, hence it hides it from the user, however it’s a valid situation where the primary field is filled by the user.
As primary field should not be changed, hence the productive advice by Martin. If the form displays an existing record, the primary field item should be set to Read Only.
Regards,
Arie.
Please remember to mark appropriate posts as correct/helpful. For the long run, it will benefit us all.

How to create one primary key for each vendor

Hi all
i am doing IDOC to jdbc scenario
i am triggering idoc from R/3 and the data is going into DB table vendor through XI.
structures are as follows:
sender side: ZVendorIdoc (this is a customized IDOC , if i triger IDOC for multiple vendors then it triggers only 1 idoc with multiple segment )
Receiver side:
DT_testVendor
    Table
        tblVendor
            action UPDATE_INSERT
            access                     1:unbounded
                cVendorName         1
                cVendorCode        1
                fromdate                1
                todate                    1
             Key1
                cVendorName         1
if i trigger idoc for multiple vendors ,for example vendor 2005,2006 and 2010 . then i can see that the only key comes from the very first field (2005) and the whole record for vendor 2005,2006 and 2010 goes into the table with this(2005) as a primary key
now again if i send data for these three vendor 2005, 2006 , 2010, in which record for the vendor 2005 is same and for 2006 and 2010 are different than it takes 2005 as a primary key and it does not update the data in the table.
my requirement is like this:   for each vendor there should be one unique key assigned.
                                          for above said example there should come three keys one for each vendor .
could you please help me how to do this???????????

Hi,
In Mapping Make the statement is 0-unbounded.For each vendor create a statement.This will solve your problem.
Regards,
Prakasu.M

Calling a page after creating a primary key?

Hello,
I have a form on a table with a create button on it. The primary key is created after I click the CREATE button, and brings me back to the report which shows my new record. Everything is fine here.
Now, I want to branch to a new page (after processing), while passing the value of my new primary key to this page. But it seems that this value is null (if I look in the URL there's no value)
For example, I need to create a new Client, and pass the primary key of my client to a new page. But it doesn't work... anybody can help me?
Thanks,
Mathieu

Never, EVER use the current value + 1!!! You will at some point, run into a collision, where two records are trying to use the same primary key value!
If you are using a surrogate PK, then you may want to consider using an Oracle sequence and trigger to populate that value. If you create a simple table via SQL Workshop, APEX will create not only a table, but the associated sequence and trigger; have a look at that if you have not seen this in action.
If you prefer to not use a trigger, then yes, you can have a computation that sets the value of P4_NOCLIENT to the next value of the sequence - NOT the current value + 1. Once it's set in APEX session state, the rest is pretty simple.
Thanks,
 Scott 
http://spendolini.blogspot.com/
http://sumnertech.com/

Can I create constraints "Primary key - Foreign key" on materialized views?

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