When the id program in the base table will be updated?
Hello
I have a trigger on the table mtl_system_items_b that fires events when a record is created / updated. I need to create a program that will update the records in the table, but at the same time, it will not trigger trigger events for the updated records. My plan is to use the program_id column in the MSIB table to check if the particular update is done by the new program. Now, the question is, what happens if the same record is updated by any user front end (after the execution of the program)? It will update the program to something else id so that the trigger fires the event? If this isn't the case, then how can I limit the trigger for these recordings?
We can disable the trigger during execution of the program, but that we will lose some updates made by users on other records.
Thanks in advance... !!
Devendra
Hi Devendra,
When someone updates the same record on before the id program also updates.
Solution because it would be too write a when clause to your relaxation. Something like below
CREATE OR REPLACE TRIGGER
after insert/update REFERRING AGAIN AS NINE OLD AND OLD FOR EACH LINE Where (NEW.program_id =
DECLARE
end; hope this helps you. Kind regards SoundariyaKumar.R
Tags: Oracle Applications
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I have two tables: staging of the table and the base table.
I get flatfiles data in the staging of the table, depending on the structure of the requirement of staging of the table and the base table (length of each column in the staging table is 25% more data dump without errors) are different for ex: If we have the city long varchar 40 column in table staging there 25 in the base table. Once data are discharged into the intermediate table that I want to compare the actual length of the data for each column in the staging table with the database table definition (data_length for each column of all_tab_columns) and if no column is different length that I need to update the corresponding line in the intermediate table which also has an indicator called err_length.
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Manoi.Hey, Marco.
Of course, you can set src.err_length in the USING clause (where you can reference all_tab_columns) and use this value in the SET clause.
It is:MERGE INTO staging_table dst USING ( WITH got_lengths AS ( SELECT MAX (CASE WHEN column_name = 'ENAME' THEN data_length END) AS ename_len , MAX (CASE WHEN column_name = 'JOB' THEN data_length END) AS job_len FROM all_tab_columns WHERE owner = 'SCOTT' AND table_name = 'EMP' ) SELECT s.ename , s.job , CASE WHEN LENGTH (s.ename) > l.ename_len THEN 'ENAME ' END || CASE WHEN LENGTH (s.job) > l.job_len THEN 'JOB ' END AS err_length FROM staging_table s JOIN got_lengths l ON LENGTH (s.ename) > l.ename_len OR LENGTH (s.job) > l.job_len ) src ON (src.ename = dst.ename) WHEN MATCHED THEN UPDATE SET dst.err_length = src.err_length ;As you can see, you have to hardcode the names of the columns common to several places. I swam () to simplify that, but I found an interesting (at least for me) alternative grouping function involving the STRAGG user_defined.
As you can see, only the subquery USING is changed.MERGE INTO staging_table dst USING ( SELECT s.ename , s.job , STRAGG (l.column_name) AS err_length FROM staging_table s JOIN all_tab_columns l ON l.data_length < LENGTH ( CASE l.column_name WHEN 'ENAME' THEN ename WHEN 'JOB' THEN job END ) WHERE l.owner = 'SCOTT' AND l.table_name = 'EMP' AND l.data_type = 'VARCHAR2' GROUP BY s.ename , s.job ) src ON (src.ename = dst.ename) WHEN MATCHED THEN UPDATE SET dst.err_length = src.err_length ;Instead of the user-defined STRAGG (that you can copy from AskTom), you can also use the undocumented, or from Oracle 11.2, WM_CONCAT LISTAGG built-in function.
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Published by: S2K on August 13, 2009 14:19Well, I don't know if this request is as beautiful as my lawn, but seems to work even when ;)
I used the "simplified" version, but the principle should work for your table, S2K.
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During his studies of FUSION with invisible columns, I discovered that invisible columns in the target table cannot be read. Workaround seems to be
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Here I used a subquery in the INTO clause thus, and it worked.
Unfortunately, this does not seem to be admitted in the documentation: IN fact refers to a table or a view as schema objects.
My question is:
How can I refer to invisible columns in the target table without creating a new object? My workaround using a subquery solution seems to work very well, but can I recommend if it is not documented?
Can I replace a "inline view" for a view and still be supported?
During his studies of FUSION with invisible columns, I discovered that invisible columns in the target table cannot be read. Workaround seems to be
However, the documentation does not seem to allow this. Here are the details.
Here I used a subquery in the INTO clause thus, and it worked.
Unfortunately, this does not seem to be admitted in the documentation: IN fact refers to a table or a view as schema objects.
My question is:
How can I refer to invisible columns in the target table without creating a new object? My workaround using a subquery solution seems to work very well, but can I recommend if it is not documented?
Can I replace a "inline view" for a view and still be supported?
But the documentation DO ALLOWS not only! You use a view - a view online and those that can be changed in a MERGE statement.
All versions of the doc for FUSION since 9i specifically say this:
INTO clause
Use the
INTOtarget clause to specify the table or view you are updating or inserting into. To merge the data in a view, the view must be updated. Please refer to the "Notes on the editable views" for more information.Here are the links for the doc. 9i, 10g, 11g and c 12, ALL OF THEM (the last three), except 9i have this EXACT clause above.
SQL statements: INDICATED to ROLLBACK FALLS, 15 of 19
http://docs.Oracle.com/CD/B19306_01/server.102/b14200/statements_9016.htm
http://docs.Oracle.com/CD/B28359_01/server.111/b28286/statements_9016.htm
https://docs.Oracle.com/database/121/SQLRF/statements_9016.htm
9i doc does not have this specific quote in the INTO clause section, but it doesn't have that quote a little later:
Limitation of the update of a view
- You cannot specify
DEFAULTwhen refreshing a view. - You cannot update a column referenced in the
ONconditionclause.
merge_insert_clause
The
merge_insert_clausespecifies the values to insert into the column of the target table, if the condition of theONclause is false. If the insert clause is executed, then all insert triggers defined on the target table are activated.Restrictions on the merger in a view
You cannot specify
DEFAULTwhen refreshing a view.If your "workaround" isn't really a workaround solution. You SHOULD use an inline view if you need to reference a column "invisible" in the target table, since otherwise, these columns are INVISIBLE!
My workaround using a subquery solution seems to work very well, but can I recommend if it is not documented?
You can recomment it because IT IS documented.
- You cannot specify
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