SQL Constraints

Hi,
I have got a small query ( using oracle 10g)
I would like to create constraints as shown in the below table between first and second colum( id & item). Is this possible using constraints
id     item     Qty
1     Apple     10
2     Orange     40
3     Kiwi     10
3     Kiwi     5
2     Apple     8
2     Orange     50 ======> not allowed ( id 2 should be Orange)
1     Mango     20 ======> not allowed ( id 1 should be Apple)
4     Mango 10
Help in this regard is very much appreciated.
Thanks
YG

Hi,
user8268619 wrote:
Hi,
I have got a small query ( using oracle 10g)
I would like to create constraints as shown in the below table between first and second colum( id & item). Is this possible using constraints
id     item     Qty
1     Apple     10
2     Orange     40
3     Kiwi     10
3     Kiwi     5
2     Apple     8
2     Orange     50 ======> not allowed ( id 2 should be Orange)
1     Mango     20 ======> not allowed ( id 1 should be Apple)
4     Mango 10
Help in this regard is very much appreciated.
Thanks
YG
Sorry, it's not clear what you want.
When you say "id 2 should be Orange", do you mean item should be 'Orange' whenever id=2? If so, what's wrong with the row
2     Orange     50 ======> not allowed ( id 2 should be Orange)
You may need to have 2 tables; the table you mentioned above, and another table with the allowed (id, item) combinations, with a foreign key constraint.

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Something like this perhaps
SCOTT @ jcave102 Local> ed
Wrote file afiedt.buf
1 create table a (
2    col1 number,
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SCOTT @ jcave102 Local> /
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If mine or someone elses response was helpful, please mark it accordingly

Changing NP User ID UDF in business One

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User_tab_cols - nullable column?

Dear All,
check the workflow:
C:\>sqlplus scott/tiger
SQL*Plus: Release 10.2.0.1.0 - Production on Fri Apr 4 16:20:48 2008
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL> CREATE TABLE TEST
2 (ID NUMBER(*,0))
3 /
Table created.
SQL>
SQL> ALTER TABLE TEST ADD (CONSTRAINT TEST_ID_NOT_NULL CHECK (ID IS NOT NULL) EN
ABLE)
2 /
Table altered.
SQL>
SQL> DESC TEST
Name Null? Type
ID NUMBER(38)
SQL>
SQL> -- Null? -> NULL
SQL>
SQL> SELECT TABLE_NAME
2 ,NULLABLE
3 FROM USER_TAB_COLS
4 WHERE TABLE_NAME = 'TEST'
5 /
TABLE_NAME N
TEST Y
SQL>
SQL> -- Nullable? Since when? I've declared a constraint on it. Ok, let's try:
SQL>
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2 /
INSERT INTO TEST (ID) VALUES (NULL)
ERROR at line 1:
ORA-02290: check constraint (SCOTT.TEST_ID_NOT_NULL) violated
SQL>
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SQL> -- I don't see the difference between forcing Oracle to add
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SQL> -- (create table test (id number not null)) and
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SQL> -- anyway...
SQL>
SQL> -- Don't forget to clean up!
SQL> DROP TABLE TEST CASCADE CONSTRAINTS
2 /
Table dropped.
SQL>
Any thoughts?
Thanks,
Franky

Franky,
Oracle has worked this way for as long as I can remember. Observe
UT1 > create table t1 (col1   varchar2(10) not null);
Table created.
UT1 > desc t1
Name                                      Null?    Type
COL1                                      NOT NULL VARCHAR2(10)
UT1 > select search_condition from dba_constraints where table_name = 'T1';
SEARCH_CONDITION
"COL1" IS NOT NULL
UT1 > drop table t1
2 /
Table dropped.
UT1 > create table t1 (col1 varchar2(10) );
Table created.
UT1 > desc t1
Name                                      Null?    Type
COL1                                               VARCHAR2(10)
1* alter table t1 add (Constraint t1col1 check (col1 is not null))
UT1 > /
Table altered.
UT1 > desc t1
Name                                      Null?    Type
COL1                                               VARCHAR2(10)
1* select search_condition from dba_constraints where table_name = 'T1'
UT1 > /
SEARCH_CONDITION
col1 is not nullUsing the "not null" keywords in the create table results in Oracle setting a switch as being turned on. It is this setting that describe reads for the table not null column. But in both cases dba_constraints will show a check constraint.
It is just the way it is. I suggest using the "not null" key words on the table create rather than setting explicit column level constraints for the columns.
I just noticed that in the first case that the column name is in double quotes in the search condition and is the second it is not.
HTH -- Mark D Powell --

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hi guys im having a problem with this create statement its probably because i have looked at it too much now im just not seeing the problem can anyone point out my mistake thanks
this is my first time using auto_increment so its probably somthing to do with that
SQL> CREATE TABLE BOOK_INFO (
2 BOOK_CN_NUM AUTO_INCREMENT(3),
3 BOOK_ISBN VARCHAR2(9),
4 BOOK_TITLE VARCHAR2(100),
5 BOOK_AUTHOR_NAME VARCHAR(30),
6 BOOK_STATUS VARCHAR2(4) DEFAULT 'IN',
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UM)
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9
SQL>
SQL> /
BOOK_CN_NUM AUTO_INCREMENT(3),
ERROR at line 2:
ORA-00907: missing right parenthesis
much appreciated
RMMO

im about to give up with this..... another error.....
SQL> ed
Wrote file afiedt.buf
1 CREATE TABLE BOOK_INFO(
2 BOOK_CN VARCHAR2(9),
3 BOOK_CN_NUM NUMBER(3),
4 BOOK_ISBN VARCHAR2(9),
5 BOOK_TITLE VARCHAR2(100),
6 BOOK_AUTHOR_NAME VARCHAR(30),
7 BOOK_STATUS VARCHAR2(4) DEFAULT 'IN',
8 CONSTRAINT BOOK_CN PRIMARY KEY)
9* ENABLE CONSTRAINT BOOK_CN
SQL> /
CONSTRAINT BOOK_CN PRIMARY KEY)
ERROR at line 8:
ORA-00906: missing left parenthesis
thanks for being sooooo patient!

Define infix operators for Object types

Hi,
Is it possible to define infix operators for object types?
Example:
CREATE TYPE BODY Complex AS
   MEMBER operator + (x Complex) RETURN Complex IS
   BEGIN
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Usage:
given a table E (C1 Complex, C2 Complex)
Select C1+C2 from E;
Kind regards
Taouik

An "object type" is nothing but a an o-o class. Can you create SQL constraints on o-o classes? Usually not. Oracle is no different.
Where do you create constraints in Oracle? On tables. And yes, an o-o class (object type) can be used to create a table (aka an object table). That table can have any of the standard SQL constraints supported by Oracle.

MDMGX Hierarchies Filter

Hi Experts,
I am executing standard MDMGX for reconsilation accounts (Hierarchy table based on company code) which is using MDM_ERP_MULTI_HIERARCHIES_EXTR as Function Module XML.
I want to get compnay starts with ' 7%' for reconsilation accounts. I have tried adding the following 2 statements in SQL Constraint column
CompanyCode LIKE '7%'
BUKRS like '7%'
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Hi Ramu,
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Kindly revert with result.
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Hi Guru's
I Have created a port call LT_Promotions in SAP t-code MDMGX and trying to transport this in test sytem ,while i try to save the transport it errors with message
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Dont know what this is ..
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Regards
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Hi Vikranth,
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SQL Constraint
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Kindly award points
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Constraint table in sql server7

i have a database in sql server7 and i want to see all the constraints that are applied on that table manually i.e. through sql query.please tell me what is the sql query that i can use to see all the constraints applied on the table.
same thing i want to do with ms-access ,tell me if i can use any query to see the constraints on ms-access table.

Hi, this is Oracle Forum, you must go to Microsoft Forum for add this Post, please take the next reference.
http://forums.microsoft.com/
Regards.

SQL 2012 and later will fail to publish a database for any tables with a default constraint that references a user defined function.

Script will create database, 3 database objects and publish.
The error is due to the generation script to create the conflict tables that is not stripping out default constraints that reference a UDF.
As you can see below, the failure is on the generation script for the conflict table.
The conflict table should be a bucket table that shouldn’t enforce data integrity.
See how the default constraints for the columns someint and somestring were stripped out of the generation logic however the default constraint that utilizes a UDF persist and uses the same object name that was used on the production table (The
bold line) , this occurs if I explicitly name the constraint or let the system generate the name for me like in the example posted.
  The only way I could see getting around this right now is to drop all default constraints in the system that uses a UDF, publish then add the constraints back which is vulnerable to invalid data and a lot of moving
steps. This all worked with SQL 2000, 2005, 2008, 2008r2, it’s stopped working in SQL 2012 and continues to not work in SQL 2014.
Error messages:
Message: There is already an object named 'DF__repTable__id__117F9D94' in the database.
Could not create constraint. See previous errors.
Command Text: CREATE TABLE [dbo].[MSmerge_conflict_MergeRepFailurePublication_repTable](
        [id] [varchar](8) NULL CONSTRAINT [DF__repTable__id__117F9D94] DEFAULT ([dbo].[repUDF]()),
        [somedata] [varchar](64) NULL,
        [rowguid] [uniqueidentifier] ROWGUIDCOL NULL,
        [someint] [int] NULL,
        [somestring] [varchar](64) NULL
Parameters:
Stack:    at Microsoft.SqlServer.Replication.AgentCore.ReMapSqlException(SqlException e, SqlCommand command)
   at Microsoft.SqlServer.Replication.AgentCore.AgentExecuteNonQuery(SqlCommand command, Int32 queryTimeout)
   at Microsoft.SqlServer.Replication.AgentCore.ExecuteDiscardResults(CommandSetupDelegate commandSetupDelegate, Int32 queryTimeout)
   at Microsoft.SqlServer.Replication.Snapshot.YukonMergeConflictTableScriptingManager.ApplyBaseConflictTableScriptToPublisherIfNeeded(String strConflictScriptPath)
   at Microsoft.SqlServer.Replication.Snapshot.BaseMergeConflictTableScriptingManager.DoConflictTableScriptingTransaction(SqlConnection connection)
   at Microsoft.SqlServer.Replication.RetryableSqlServerTransactionManager.ExecuteTransaction(Boolean bLeaveTransactionOpen)
   at Microsoft.SqlServer.Replication.Snapshot.BaseMergeConflictTableScriptingManager.DoConflictTableScripting()
   at Microsoft.SqlServer.Replication.Snapshot.MergeSmoScriptingManager.GenerateTableArticleCftScript(Scripter scripter, BaseArticleWrapper articleWrapper, Table smoTable)
   at Microsoft.SqlServer.Replication.Snapshot.MergeSmoScriptingManager.GenerateTableArticleScripts(ArticleScriptingBundle articleScriptingBundle)
   at Microsoft.SqlServer.Replication.Snapshot.MergeSmoScriptingManager.GenerateArticleScripts(ArticleScriptingBundle articleScriptingBundle)
   at Microsoft.SqlServer.Replication.Snapshot.SmoScriptingManager.GenerateObjectScripts(ArticleScriptingBundle articleScriptingBundle)
   at Microsoft.SqlServer.Replication.Snapshot.SmoScriptingManager.DoScripting()
   at Microsoft.SqlServer.Replication.Snapshot.SqlServerSnapshotProvider.DoScripting()
   at Microsoft.SqlServer.Replication.Snapshot.MergeSnapshotProvider.DoScripting()
   at Microsoft.SqlServer.Replication.Snapshot.SqlServerSnapshotProvider.GenerateSnapshot()
   at Microsoft.SqlServer.Replication.SnapshotGenerationAgent.InternalRun()
   at Microsoft.SqlServer.Replication.AgentCore.Run() (Source: MSSQLServer, Error number: 2714)
Get help: http://help/2714
Server COL-PCANINOW540\SQL2012, Level 16, State 0, Procedure , Line 1
Could not create constraint. See previous errors. (Source: MSSQLServer, Error number: 1750)
Get help: http://help/1750
Server COL-PCANINOW540\SQL2012, Level 16, State 0, Procedure , Line 1
Could not create constraint. See previous errors. (Source: MSSQLServer, Error number: 1750)
Get help: http://help/1750
Pauly C
USE [master]
GO
CREATE DATABASE [MergeRepFailure]
ALTER DATABASE [MergeRepFailure] SET COMPATIBILITY_LEVEL = 110
GO
USE [MergeRepFailure]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
create view
[dbo].[repView] as select right(newid(),8) as id
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE FUNCTION [dbo].[repUDF]()
RETURNS varchar(8)
BEGIN
declare @val varchar(8)
select top 1 @val = id from [repView]
return @val
END
GO
create table repTable
id varchar(8) default([dbo].[repUDF]()),
somedata varchar(64) null,
rowguid uniqueidentifier ROWGUIDCOL default(newid()),
someint int default(1),
somestring varchar(64) default('somestringvalue')
GO
insert into reptable (somedata) values ('whatever1')
insert into reptable (somedata) values ('whatever2')
go
/*test to make sure function is working*/
select * from reptable
GO
/*Publish database*/
use [MergeRepFailure]
exec sp_replicationdboption @dbname = N'MergeRepFailure', @optname = N'merge publish', @value = N'true'
GO
declare @Descrip nvarchar(128)
select @Descrip = 'Merge publication of database ''MergeRepFailure'' from Publisher ''' + @@servername +'''.'
print @Descrip
-- Adding the merge publication
use [MergeRepFailure]
exec sp_addmergepublication @publication = N'MergeRepFailurePublication', @description = N'@Descrip',
@sync_mode = N'native', @retention = 14, @allow_push = N'true', @allow_pull = N'true', @allow_anonymous = N'true',
@enabled_for_internet = N'false', @snapshot_in_defaultfolder = N'true', @compress_snapshot = N'false', @ftp_port = 21,
@ftp_subdirectory = N'ftp', @ftp_login = N'anonymous', @allow_subscription_copy = N'false', @add_to_active_directory = N'false',
@dynamic_filters = N'false', @conflict_retention = 14, @keep_partition_changes = N'false', @allow_synctoalternate = N'false',
@max_concurrent_merge = 0, @max_concurrent_dynamic_snapshots = 0, @use_partition_groups = null, @publication_compatibility_level = N'100RTM',
@replicate_ddl = 1, @allow_subscriber_initiated_snapshot = N'false', @allow_web_synchronization = N'false', @allow_partition_realignment = N'true',
@retention_period_unit = N'days', @conflict_logging = N'both', @automatic_reinitialization_policy = 0
GO
exec sp_addpublication_snapshot @publication = N'MergeRepFailurePublication', @frequency_type = 4, @frequency_interval = 14, @frequency_relative_interval = 1,
@frequency_recurrence_factor = 0, @frequency_subday = 1, @frequency_subday_interval = 5, @active_start_time_of_day = 500, @active_end_time_of_day = 235959,
@active_start_date = 0, @active_end_date = 0, @job_login = null, @job_password = null, @publisher_security_mode = 1
use [MergeRepFailure]
exec sp_addmergearticle @publication = N'MergeRepFailurePublication', @article = N'repTable', @source_owner = N'dbo', @source_object = N'repTable', @type = N'table',
@description = null, @creation_script = null, @pre_creation_cmd = N'drop', @schema_option = 0x000000010C034FD1, @identityrangemanagementoption = N'manual',
@destination_owner = N'dbo', @force_reinit_subscription = 1, @column_tracking = N'false', @subset_filterclause = null, @vertical_partition = N'false',
@verify_resolver_signature = 1, @allow_interactive_resolver = N'false', @fast_multicol_updateproc = N'true', @check_permissions = 0, @subscriber_upload_options = 0,
@delete_tracking = N'true', @compensate_for_errors = N'false', @stream_blob_columns = N'false', @partition_options = 0
GO
use [MergeRepFailure]
exec sp_addmergearticle @publication = N'MergeRepFailurePublication', @article = N'repView', @source_owner = N'dbo', @source_object = N'repView',
@type = N'view schema only', @description = null, @creation_script = null, @pre_creation_cmd = N'drop', @schema_option = 0x0000000008000001,
@destination_owner = N'dbo', @destination_object = N'repView', @force_reinit_subscription = 1
GO
use [MergeRepFailure]
exec sp_addmergearticle @publication = N'MergeRepFailurePublication', @article = N'repUDF', @source_owner = N'dbo', @source_object = N'repUDF',
@type = N'func schema only', @description = null, @creation_script = null, @pre_creation_cmd = N'drop', @schema_option = 0x0000000008000001,
@destination_owner = N'dbo', @destination_object = N'repUDF', @force_reinit_subscription = 1
GO

More information, after running a profile trace the following 2 statements, the column with the default on a UDF returns a row while the other default does not. This might be the cause of this bug. Is the same logic to generate the object on
the subscriber used to generate the conflict table?
exec sp_executesql N'
select so.name, schema_name(so.schema_id)
from sys.sql_dependencies d
inner join sys.objects so
on d.referenced_major_id = so.object_id
where so.type in (''FN'', ''FS'', ''FT'', ''TF'', ''IF'')
and d.class in (0,1)
and d.referenced_major_id <> object_id(@base_table, ''U'')
and d.object_id = object_id(@constraint, ''D'')',N'@base_table nvarchar(517),@constraint nvarchar(517)',@base_table=N'[dbo].[repTable]',@constraint=N'[dbo].[DF__repTable__id__117F9D94]'
exec sp_executesql N'
select so.name, schema_name(so.schema_id)
from sys.sql_dependencies d
inner join sys.objects so
on d.referenced_major_id = so.object_id
where so.type in (''FN'', ''FS'', ''FT'', ''TF'', ''IF'')
and d.class in (0,1)
and d.referenced_major_id <> object_id(@base_table, ''U'')
and d.object_id = object_id(@constraint, ''D'')',N'@base_table nvarchar(517),@constraint nvarchar(517)',@base_table=N'[dbo].[repTable]',@constraint=N'[dbo].[DF__repTable__somein__1367E606]'
Pauly C

SQL*Loader and integrity constraints

I am running into trouble with integrity constraints in my SQL*Loader script runs. Should I be going up to unix and removing the constraints from sqlplus, then asking the wizard to reinstall them after the data load? Is this documented somewhere? I can't find it. Sorry for asking such a basic question.
Thanks,
Ann Cantelow

Hi,
Your approach is correct.
Create tables first
Move data via the scripts
Create contraints, indexes, primary keys
See the User Guide for the ORacle Migration Workbench http://otn.oracle.com/tech/migration/workbench
Regards
John

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Here is my issue:
I have created a table already named practice1.
Using SQL Developer PL/SQL try to run a loop as following:
DECLARE
COUNTER1 NUMBER(2);
BEGIN
COUNTER1 := 30;
ALTER TABLE practice1
DISABLE CONSTRAINT PRK1;
LOOP
COUNTER1 := 30;
INSERT INTO PRACTICE1
VALUES (COUNTER1, 'test7', 8, 9);
EXIT WHEN COUNTER1 >26;
END LOOP;
END;
In other words I Insert the COUNTER1 variable value as Primary Key in the tables field1 column.
I run the script successfully without the ALTER TABLE DISABLE CONTSRAINT.. command.
Everytime I run it I had to increase the starting value of Variable COUNTER1 so it will not attempt to insert a duplicate pre-existed value in Primary Key.
Then I decided to insert the command ALTER TABLE DISABLE CONSTRAINT in order to not have to worry to change the starting value.
I am able to disable the constraint by using the same command in isolation . If I run it as part of the script as above I get the following error:
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ORA-06550: line 5, column 1:
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06550. 00000 - "line %s, column %s:\n%s"
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*Action:
I would appreciate any suggestions.
Thank you.

Your question has NOTHING to do with sql developer.
Mark this question ANSWERED and repost it in the SQL and PL/SQL forum.
https://forums.oracle.com/community/developer/english/oracle_database/sql_and_pl_sql
The problem is that you CANNOT execute DDL directly in PL/SQL. You need to use dynamic SQL to execute DDL within PL/SQL.
EXECUTE IMMEDIATE 'ALTER TABLE . . .';
If you need more help use the correct forum as shown above.

PL/SQL Automatic Constraint Handler(Code)

For those interested...
I created the following database code that automatically does the constraint check/return error message for you.
You could even take this a step further and create your own message repository...
This guy even grabs/checks for foreign key violations:
First part of code builds/returns dictionary data constraints for table that you specify.
It then loads this data into object type.
This object type will be referenced later in the database trigger that you create for table where you want to validate constraints
return DbCons_documents_Array
as
dbdata DbCons_documents_Array := DbCons_documents_Array();
i NUMBER := 1;
begin
FOR cns_rec IN(select child.child_cons_name clchild_cons_name,
child.parent_cons_name clparent_cons_name,
child.child_columns clchild_columns,
parent.parent_cons_name pparent_cons_name,
parent.parent_tname pparent_tname,
child.child_tname clchild_tname,
CONCAT(CONCAT('"',replace(replace(parent.parent_columns,'"',''),'''','')),'"') pparent_columns,
child.parent_cons_type pparent_cons_type
--CONCAT(CONCAT('''',web_form_array(find_web_frm_val).db_col_value),'''');
FROM (
select a.table_name child_tname,
a.constraint_name child_cons_name,
NVL(b.r_constraint_name,a.constraint_name) parent_cons_name,
b.constraint_type parent_cons_type,
max(decode(position, 1, '"'||column_name||'"',NULL)) ||
max(decode(position, 2,', '||'"'||column_name||'"',NULL)) ||
max(decode(position, 3,', '||'"'||column_name||'"',NULL)) ||
max(decode(position, 4,', '||'"'||column_name||'"',NULL)) ||
max(decode(position, 5,', '||'"'||column_name||'"',NULL)) ||
max(decode(position, 6,', '||'"'||column_name||'"',NULL)) ||
max(decode(position, 7,', '||'"'||column_name||'"',NULL)) ||
max(decode(position, 8,', '||'"'||column_name||'"',NULL)) ||
max(decode(position, 9,', '||'"'||column_name||'"',NULL)) ||
max(decode(position,10,', '||'"'||column_name||'"',NULL)) ||
max(decode(position,11,', '||'"'||column_name||'"',NULL)) ||
max(decode(position,12,', '||'"'||column_name||'"',NULL)) ||
max(decode(position,13,', '||'"'||column_name||'"',NULL)) ||
max(decode(position,14,', '||'"'||column_name||'"',NULL)) ||
max(decode(position,15,', '||'"'||column_name||'"',NULL)) ||
max(decode(position,16,', '||'"'||column_name||'"',NULL))
child_columns
from user_cons_columns a, user_constraints b
where a.constraint_name = b.constraint_name
and b.constraint_type IN ( 'U', 'R' )
--and nvl(B.r_constraint_name,B.constraint_name) = A.constraint_name
-- and nvl(a.r_owner,a.owner) = b.owner
group by a.table_name, a.constraint_name, b.r_constraint_name,b.constraint_type ) child,
( select a.constraint_name parent_cons_name,
a.table_name parent_tname,
max(decode(position, 1, '"'||column_name||'"',NULL)) ||
max(decode(position, 2,', '||'"'||column_name||'"',NULL)) ||
max(decode(position, 3,', '||'"'||column_name||'"',NULL)) ||
max(decode(position, 4,', '||'"'||column_name||'"',NULL)) ||
max(decode(position, 5,', '||'"'||column_name||'"',NULL)) ||
max(decode(position, 6,', '||'"'||column_name||'"',NULL)) ||
max(decode(position, 7,', '||'"'||column_name||'"',NULL)) ||
max(decode(position, 8,', '||'"'||column_name||'"',NULL)) ||
max(decode(position, 9,', '||'"'||column_name||'"',NULL)) ||
max(decode(position,10,', '||'"'||column_name||'"',NULL)) ||
max(decode(position,11,', '||'"'||column_name||'"',NULL)) ||
max(decode(position,12,', '||'"'||column_name||'"',NULL)) ||
max(decode(position,13,', '||'"'||column_name||'"',NULL)) ||
max(decode(position,14,', '||'"'||column_name||'"',NULL)) ||
max(decode(position,15,', '||'"'||column_name||'"',NULL)) ||
max(decode(position,16,', '||'"'||column_name||'"',NULL))
parent_columns
from user_cons_columns a, user_constraints b
where a.constraint_name = b.constraint_name
and b.constraint_type in ( 'P', 'U', 'R' )
group by a.table_name, a.constraint_name ) parent
where child.parent_cons_name = parent.parent_cons_name
and child.child_tname = upper('YOUR TABLE NAME HERE')
LOOP
dbdata.extend(i);
dbdata(i) := cdrl5.dbconstraint_documents_rec(cns_rec.pparent_cons_name,cns_rec.clchild_tname,cns_rec.pparent_tname,cns_rec.pparent_columns,cns_rec.pparent_cons_type);
--dbdata(i) := '';
-- dbdata(i) := dbconstraint_rec('test','test','test','test');
--v_sql :=
-- dbdata(i).constraint_name;
i := i+1;
END LOOP;
FOR d IN 1..dbdata.COUNT
LOOP
IF dbdata(d).constraint_name IS NULL
THEN
dbdata.delete(d);
END IF;
END LOOP;
-- dbdata.delete;
return dbdata;
END;
Second part is code that is in trigger of table you are inserting into. Note that you have to store the table name/column name(that make up the constraint)/actual form values into pl/sql table:
DECLARE
v_sql VARCHAR2(32000);
v_literal_value VARCHAR2(100);
v_error_relay VARCHAR2(4000);
v_db_values NUMBER := 1;
v_dup_count NUMBER;
nforeign_key EXCEPTION;
TYPE DupRecordType IS REF CURSOR;
dup_rec_cv DupRecordType;
dbdata DbCons_Documents_Array := DbCons_Documents_Array(cdrl5.dbconstraint_documents_rec(null,null,null,null,null));
TYPE tokenTableType is TABLE of varchar2(4000) -- table for Stringtoken
index by binary_integer;
tokenChar VARCHAR2(4000) := '," ';
tokens tokenTableType;
vCnt integer := 1;
myLine varchar2(4000) := null;
Line varchar2(4000) := null;
vPos integer := 1;
TYPE form_rec IS RECORD
table_name VARCHAR2(100),
db_column VARCHAR2(100),
db_col_value VARCHAR2(1000)
TYPE form_type IS TABLE OF form_rec
INDEX BY binary_integer;
web_form_array form_type;
BEGIN
dbdata.DELETE;
-- IF :new.DOC_ID IS NOT NULL
-- THEN
NOTE: Load the below table(with values specified) for each table constraint
web_form_array(v_db_values).table_name :=
'YOUR TABLE NAME';
web_form_array(v_db_values).db_column :=
'YOUR FIELD NAME';
web_form_array(v_db_values).db_col_value :=
:new.;
v_db_values := v_db_values +1;
FOR cns_rec IN(select *
from TABLE ( cast( documents_cons_dml() as DbCons_documents_Array ))
LOOP
line :=
cns_rec.constraint_where;
v_sql := 'SELECT count(*) FROM '||cns_rec.constraint_column;
IF INSTR(line,',',1,1) <= 0
THEN
FOR find_web_frm_val IN 1..web_form_array.COUNT
LOOP
IF cns_rec.table_name = web_form_array(find_web_frm_val).table_name
AND replace(line,'"','') = web_form_array(find_web_frm_val).db_column
THEN
v_literal_value :=
CONCAT(CONCAT('''',web_form_array(find_web_frm_val).db_col_value),'''');
v_sql := v_sql||' WHERE '||' '||web_form_array(find_web_frm_val).db_column||' = '||v_literal_value;
END IF;
END LOOP;
ELSE
while (vPos <= length(line))
loop
if (length(replace(tokenChar,substr(line, vPos, 1), '')) = length(tokenChar))
then
myLine := myLine || substr(line, vPos, 1);
elsif (myLine is not NULL) then
tokens(vCnt) := myLine;
FOR find_web_frm_val IN 1..v_db_values
LOOP
IF cns_rec.table_name = web_form_array(find_web_frm_val).table_name
AND MYLine = web_form_array(find_web_frm_val).db_column
THEN
v_literal_value :=
CONCAT(CONCAT('''',web_form_array(find_web_frm_val).db_col_value),'''');
END IF;
end loop;
IF vCnt = 1
THEN
v_sql := v_sql||' WHERE '||' '||myLine||' = '||v_literal_value;
ELSE
v_sql := v_sql||' AND '||' '||myLine||' = '||v_literal_value;
END IF;
myLine := null;
vCnt := vCnt + 1;
end if;
vPos := vPos + 1;
end loop;
if (myLine is not NULL) then
tokens(vCnt) := myLine;
end if;
vCnt := 1;
vPos := 1;
END IF;
OPEN dup_rec_cv FOR v_sql;
FETCH dup_rec_cv
INTO v_dup_count;
CLOSE dup_rec_cv;
IF cns_rec.column_position = 'R'
THEN
IF v_dup_count <= 0
THEN
v_error_relay :=
'The form field value for Database Column '||' '||line||' '||' that was entered does not exist';
RAISE nforeign_key;
END IF;
ELSIF cns_rec.column_position = 'U'
THEN
IF v_dup_count > 0
THEN
RAISE DUP_VAL_ON_INDEX;
END IF;
END IF;
-- commit_trans(v_dup_count);
-- INSERT INTO test
-- values(line||' '||INSTR(line,',',1,1));
-- VALUES(cns_rec.constraint_name||' '||cns_rec.table_name||' '||cns_rec.constraint_column||' '||cns_rec.constraint_where);
-- values(v_sql||' '||vPos||' '||length(line));
-- VALUES(web_form_array(i).table_name||' '||CONCAT(CONCAT('''',web_form_array(i).db_col_value),'''')||' '||i);
--commit;
-- i := i+1;
END LOOP;
EXCEPTION
WHEN DUP_VAL_ON_INDEX
THEN
raise_application_error(-20101, 'Attempted to update duplicate. Cannot update '||:new.);
WHEN nforeign_key
THEN raise_application_error(-20101, v_error_relay||' '||' YOUR MESSAGE HERE '||:new.);
END;

Mark:
Ordinarily, I not really a critical guy, but that thing is such a mess that I have to comment. I won't mention the complete lack of bind variables (which leads to the shared pool and hard parsing concerns), but as posted it won't even compile. I had some time to kill, so.
For starters, the big query in your function gets:
ORA-01467: sort key too long
on my 9.2.0.6 instance with 16K blocksize, and on my 9.2.0.1 instance with an 8K blocksize. Interestingly, it does work on my 8.1.7.4 instance with 8K blocks. So, I had to limit it to 15 columns.
You give no function name at all. Based on the trigger code, I assume the function should be documents_cons_dml. I also added a paramter to pass the table name since one could conceivably have more than one table in an application.
I also took the liberty of fixing your extend problem. In your code, you extend the array by one in the first iteration through the loop, by two in the second and so on. Which is why you need the delete loop at the end.
There is no definition for the DbCons_documents_Array that the function returns, so I assumed something like:
SQL> CREATE TYPE dbconstraint_documents_rec AS OBJECT (
2     constraint_name   VARCHAR2(30),
3     table_name        VARCHAR2(30),
4     constraint_column VARCHAR2(30),
5     constraint_where VARCHAR2(4000),
6     column_position   VARCHAR2(1) );
7 /
Type created.
SQL> CREATE TYPE DbCons_documents_Array AS
2     VARRAY(50) OF dbconstraint_documents_rec;
3 /
Type created.I used the names that you used in the trigger, although the names don't seem to match with the column contents, must be code re-use.
So, now the function looks like:
SQL> CREATE FUNCTION documents_cons_dml (p_table_name IN VARCHAR2)
2    RETURN DbCons_documents_Array AS
3
4     dbdata DbCons_documents_Array := DbCons_documents_Array();
5     i NUMBER := 1;
6 BEGIN
7     FOR cns_rec IN(SELECT child.child_cons_name clchild_cons_name,
8                           child.parent_cons_name clparent_cons_name,
9                           child.child_columns clchild_columns,
10                           parent.parent_cons_name pparent_cons_name,
11                           parent.parent_tname pparent_tname,
12                           child.child_tname clchild_tname,
13                           CONCAT(CONCAT('"',REPLACE(REPLACE(parent.parent_columns,'"',''),'''','')),'"') pparent_columns,
14                           child.parent_cons_type pparent_cons_type
15                    FROM (SELECT a.table_name child_tname,
16                                 a.constraint_name child_cons_name,
17                                 NVL(b.r_constraint_name,a.constraint_name) parent_cons_name,
18                                 b.constraint_type parent_cons_type,
19                                 MAX(DECODE(position, 1, '"'||column_name||'"',NULL)) ||
20                                 MAX(DECODE(position, 2,', "'||column_name||'"',NULL)) ||
21                                 MAX(DECODE(position, 3,', "'||column_name||'"',NULL)) ||
22                                 MAX(DECODE(position, 4,', "'||column_name||'"',NULL)) ||
23                                 MAX(DECODE(position, 5,', "'||column_name||'"',NULL)) ||
24                                 MAX(DECODE(position, 6,', "'||column_name||'"',NULL)) ||
25                                 MAX(DECODE(position, 7,', "'||column_name||'"',NULL)) ||
26                                 MAX(DECODE(position, 8,', "'||column_name||'"',NULL)) ||
27                                 MAX(DECODE(position, 9,', "'||column_name||'"',NULL)) ||
28                                 MAX(DECODE(position,10,', "'||column_name||'"',NULL)) ||
29                                 MAX(DECODE(position,11,', "'||column_name||'"',NULL)) ||
30                                 MAX(DECODE(position,12,', "'||column_name||'"',NULL)) ||
31                                 MAX(DECODE(position,13,', "'||column_name||'"',NULL)) ||
32                                 MAX(DECODE(position,14,', "'||column_name||'"',NULL)) ||
33                                 MAX(DECODE(position,15,', "'||column_name||'"',NULL)) child_columns
34                          FROM user_cons_columns a, user_constraints b
35                          WHERE a.constraint_name = b.constraint_name and
36                                b.constraint_type IN ( 'U', 'R' )
37                          GROUP BY a.table_name, a.constraint_name,
38                                   b.r_constraint_name,b.constraint_type ) child,
39                         (SELECT a.constraint_name parent_cons_name,
40                                 a.table_name parent_tname,
41                                 MAX(DECODE(position, 1, '"'||column_name||'"',NULL)) ||
42                                 MAX(DECODE(position, 2,', "'||column_name||'"',NULL)) ||
43                                 MAX(DECODE(position, 3,', "'||column_name||'"',NULL)) ||
44                                 MAX(DECODE(position, 4,', "'||column_name||'"',NULL)) ||
45                                 MAX(DECODE(position, 5,', "'||column_name||'"',NULL)) ||
46                                 MAX(DECODE(position, 6,', "'||column_name||'"',NULL)) ||
47                                 MAX(DECODE(position, 7,', "'||column_name||'"',NULL)) ||
48                                 MAX(DECODE(position, 8,', "'||column_name||'"',NULL)) ||
49                                 MAX(DECODE(position, 9,', "'||column_name||'"',NULL)) ||
50                                 MAX(DECODE(position,10,', "'||column_name||'"',NULL)) ||
51                                 MAX(DECODE(position,11,', "'||column_name||'"',NULL)) ||
52                                 MAX(DECODE(position,12,', "'||column_name||'"',NULL)) ||
53                                 MAX(DECODE(position,13,', "'||column_name||'"',NULL)) ||
54                                 MAX(DECODE(position,14,', "'||column_name||'"',NULL)) ||
55                                 MAX(DECODE(position,15,', "'||column_name||'"',NULL)) parent_columns
56                          FROM user_cons_columns a, user_constraints b
57                          WHERE a.constraint_name = b.constraint_name and
58                                b.constraint_type IN ( 'P', 'U', 'R' )
59                          GROUP BY a.table_name, a.constraint_name ) parent
60                    WHERE child.parent_cons_name = parent.parent_cons_name and
61                          child.child_tname = upper(p_table_name)) LOOP
62        dbdata.extend;
63        dbdata(i) := dbconstraint_documents_rec(cns_rec.pparent_cons_name,
64                                                cns_rec.clchild_tname,
65                                                cns_rec.pparent_tname,
66                                                cns_rec.pparent_columns,
67                                                cns_rec.pparent_cons_type);
68        i := i+1;
69     END LOOP;
70     RETURN dbdata;
71 END;
72 /
Function created.
SQL> CREATE TABLE t (ID NUMBER PRIMARY KEY, descr VARCHAR2(10));
Table created.
SQL> CREATE TABLE t1 (idt1 NUMBER PRIMARY KEY, descr VARCHAR2(10));
Table created.
SQL> ALTER TABLE t ADD CONSTRAINT t_fk
2 FOREIGN KEY (id) REFERENCES t1 (idt1);
Table altered.Now for the trigger. Once I got rid of the schema owner cdrl5 in the dbconstraint_documents_rec call it actually compiled first time. So, my trigger looks like:
SQL> CREATE OR REPLACE TRIGGER t_bi
2 BEFORE INSERT ON t
3 FOR EACH ROW
4 DECLARE
5     v_sql VARCHAR2(32000);
6     v_literal_value VARCHAR2(100);
7     v_error_relay VARCHAR2(4000);
8     v_db_values NUMBER := 1;
9     v_dup_count NUMBER;
10     nforeign_key EXCEPTION;
11
12     TYPE DupRecordType IS REF CURSOR;
13     dup_rec_cv DupRecordType;
14
15     dbdata DbCons_Documents_Array := DbCons_Documents_Array(dbconstraint_documents_rec(null,null,null,null,null));
16
17     TYPE tokenTableType IS TABLE OF VARCHAR2(4000) INDEX BY BINARY_INTEGER;
18     tokenChar VARCHAR2(4000) := '," ';
19     tokens tokenTableType;
20     vCnt INTEGER := 1;
21     myLine VARCHAR2(4000) := NULL;
22     Line VARCHAR2(4000) := NULL;
23     vPos INTEGER := 1;
24
25     TYPE form_rec IS RECORD (
26        table_name VARCHAR2(100),
27        db_column VARCHAR2(100),
28        db_col_value VARCHAR2(1000));
29
30     TYPE form_type IS TABLE OF form_rec INDEX BY BINARY_INTEGER;
31     web_form_array form_type;
32
33 BEGIN
34     dbdata.DELETE;
35 -- NOTE: Load the below table(with values specified) for each table constraint
36
37     web_form_array(v_db_values).table_name := 'T';
38     web_form_array(v_db_values).db_column := 'ID';
39     web_form_array(v_db_values).db_col_value := :new.ID;
40     v_db_values := v_db_values +1;
41
42     FOR cns_rec IN(SELECT *
43                    FROM TABLE ( CAST(documents_cons_dml('T') AS DbCons_documents_Array ))) LOOP
44        line := cns_rec.constraint_where;
45        v_sql := 'SELECT count(*) FROM '||cns_rec.constraint_column;
46        IF INSTR(line,',',1,1) <= 0 THEN
47           FOR find_web_frm_val IN 1 .. web_form_array.COUNT LOOP
48              IF cns_rec.table_name = web_form_array(find_web_frm_val).table_name AND
49                 REPLACE(line,'"','') = web_form_array(find_web_frm_val).db_column THEN
50
51                 v_literal_value :=CONCAT(CONCAT('''',web_form_array(find_web_frm_val).db_col_value),'''');
52                 v_sql := v_sql||' WHERE '||' '||web_form_array(find_web_frm_val).db_column||' = '||v_literal_value;
53              END IF;
54           END LOOP;
55        ELSE
56           WHILE (vPos <= LENGTH(line)) LOOP
57              IF (LENGTH(REPLACE(tokenChar,substr(line, vPos, 1), '')) = LENGTH(tokenChar)) THEN
58                 myLine := myLine || substr(line, vPos, 1);
59              ELSIF (myLine IS NOT NULL) THEN
60                 tokens(vCnt) := myLine;
61                 FOR find_web_frm_val IN 1 .. v_db_values LOOP
62                    IF cns_rec.table_name = web_form_array(find_web_frm_val).table_name AND
63                          MYLine = web_form_array(find_web_frm_val).db_column THEN
64                       v_literal_value := CONCAT(CONCAT('''',web_form_array(find_web_frm_val).db_col_value),'''');
65                    END IF;
66                 END LOOP;
67                 IF vCnt = 1 THEN
68                    v_sql := v_sql||' WHERE '||' '||myLine||' = '||v_literal_value;
69                 ELSE
70                    v_sql := v_sql||' AND '||' '||myLine||' = '||v_literal_value;
71                 END IF;
72                 myLine := null;
73                 vCnt := vCnt + 1;
74              END IF;
75              vPos := vPos + 1;
76           END LOOP;
77
78           IF (myLine IS NOT NULL) THEN
79              tokens(vCnt) := myLine;
80           END IF;
81           vCnt := 1;
82           vPos := 1;
83        END IF;
84
85        OPEN dup_rec_cv FOR v_sql;
86        FETCH dup_rec_cv INTO v_dup_count;
87        CLOSE dup_rec_cv;
88        IF cns_rec.column_position = 'R' THEN
89           IF v_dup_count <= 0 THEN
90              v_error_relay := 'The form field value for Database Column '||' '||line||' '||' that was entered does not exist';
91              RAISE nforeign_key;
92           END IF;
93        ELSIF cns_rec.column_position = 'U' THEN
94           IF v_dup_count > 0 THEN
95              RAISE DUP_VAL_ON_INDEX;
96           END IF;
97        END IF;
98     END LOOP;
99 EXCEPTION
100     WHEN DUP_VAL_ON_INDEX THEN
101        raise_application_error(-20101, 'Attempted to update duplicate. Cannot update '||:new.ID);
102     WHEN nforeign_key THEN
103        raise_application_error(-20101, v_error_relay||' '||' YOUR MESSAGE HERE '||:new.ID);
104 END;
105 /
Trigger created.So, lets try this puppy out.
SQL> INSERT INTO t1 VALUES (1, 'T1 ONE');
1 row created.
SQL> COMMIT;
Commit complete.I want at least one valid value to make sure I can actually insert something without dying on the trigger.
SQL> INSERT INTO t VALUES (1, 'T One');
1 row created.
SQL> COMMIT;
Commit complete.Which we can. Now lets test the Primary Key.
SQL> INSERT INTO t VALUES (1, 'T One');
INSERT INTO t VALUES (1, 'T One')
ERROR at line 1:
ORA-00001: unique constraint (OPS$ORACLE.SYS_C0027113) violatedOOPS, that's Oracle's message. Well, maybe it's because you are only checking cns_rec.column_position for R or U and my constraint is a P, and by the way, your function does not return the Primary Key for the table passed at all.
So, lets try the foreign key:
SQL> INSERT INTO t VALUES (2, 'T Two');
INSERT INTO t VALUES (2, 'T Two')
ERROR at line 1:
ORA-02291: integrity constraint (OPS$ORACLE.T_FK) violated - parent key not foundOOPS. So, for every valid insert I am doing a huge amount of extra work, and I still get Oracle's errors when it's wrong. If I have screwed something up in the set-up, please feel free to post a working example exactly as I did here.
John

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