Lock in Insert?

Hi,
I have a job in my Oracle Forms 10g/ Oracle DB 10g application that runs every minute to identify if there is a Blocking Lock in the database.
I have been getting an INSERT statement as the cause of the blocking lock every day! How can an insert statement create a blocking?
I have not used LOCK TABLE tab1 IN EXCLUSIVE MODE;
The query I use in my job to get the Blocking SQL text is:
SELECT vs.SID, vs.username, vs.logon_time, vs.machine, vs.sql_hash_value,
vsql.piece, vsql.sql_text, vs.prev_hash_value
FROM v$session vs, v$sqltext vsql
WHERE SID IN (SELECT LPAD (' ', DECODE (vl.request, 0, 0, 1)) || SID
FROM v$lock vl
WHERE id1 IN (SELECT id1
FROM v$lock vl2
WHERE vl2.lmode = 0))
AND vs.sql_hash_value = vsql.hash_value
ORDER BY 2, 5, 6;
Please advice
Warm Regards
Sajan

Do you know the issues that can happen due to the nolock hint usage?
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

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Hello, is there a way to detect whether another process is inserting same row into same table, at the point of insert?
For eg
create table p1 ( col varchar2(10) );
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You could test for a share lock:
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Row Level Locking while inserting a record.

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create a lock object using SE11 for that perticular table and include field names in Lock parameters. Then it will generate two FMs one for locking and another for unlocking.
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Hi guru!
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Query on Lock object

Hi,
I need to lock the Custom table based on company code.
I have an Internal table with list of company codes. Now I need to lock the table for All the company codes there in ITAB.
I am doing like this.
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MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
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ENDLOOP.
Please let me know is that the write way?
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Hi,
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Hi all,
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for this i wrote the code as follows
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Is the only workaround for this the one I found here?:
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Steps are under heading "Workaround for Locked Code insert error"
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> Is the only workaround for this the one I found here?:
>
http://med.stanford.edu/irt/web/references/flash_video_installation.html.
> Steps
> are under heading "Workaround for Locked Code insert
error" near bottom
> of
> page.
This workaround *will* work....
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
==================
http://www.dreamweavermx-templates.com
- Template Triage!
http://www.projectseven.com/go
- DW FAQs, Tutorials & Resources
http://www.dwfaq.com - DW FAQs,
Tutorials & Resources
http://www.macromedia.com/support/search/
- Macromedia (MM) Technotes
==================
"kilmeny21" <[email protected]> wrote in
message
news:[email protected]...
> Error when inserting an FLV into a template based page.
>
> The error is: "Making this change would require changing
code that is
> locked
> by a template or translator. The change will be
discarded."
>
> I thought perhaps something was wrong with my code so I
created a new page
> in
> DW8, with one word of text. Saved the new page as a
template with the one
> word
> of text made into an editable region. Created a page
based on that
> template and
> attempted to insert a FLV file into the editable region
(using Insert >
> Media >
> Flash Video). I still get the error message. I've
attached the code for
> this
> page.
>
> I also get the error message when I go through the
tutorial
>
http://www.adobe.com/devnet/flash/articles/flv_tutorial.html.
Using the
> files
> provided in the tutorial.
>
> Is the only workaround for this the one I found here?:
>
http://med.stanford.edu/irt/web/references/flash_video_installation.html.
> Steps
> are under heading "Workaround for Locked Code insert
error" near bottom
> of
> page.
>
> Any help is appreciated.
> Jen
>
>
>
> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0
Transitional//EN"
> "
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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oracle : 9.2.0.7
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Are you running two separate Threads that both use the same database connection?
This issue has been discussed previously in this forum.
Search the forum archives for more details.
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I have an app with Java + Oracle. I have a few tables which can be modified ( select, insert, up, del) by more than one user.
For ex
//---------- get info from database
SELECT a FROM A;
// later
SELECT b FROM B;
// --------- end
Q1). how can I make sure that after I select from A, no one modifies table B, until I select from B ?
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Q3). I know that jdbc-odbc isn't very good, but still, can I use it ?

Q1). how can I make sure that after I select from A,
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Q2). If I have 3 tables and I have to insert some
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How to count 2 inserts together?

hello people,
i've just started programming with Java in NetBeans
and now i'm trying to make a countmachine
but i don't know how to get further
the script must count 2 inserts
1 + 1 = 2
and show the result in another textfield, what has to be lock (no insert over here)
i make the code like this:
public class ED5_1 extends javax.swing.JFrame
public ED5_1()
initComponents();
private void initComponents()
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
id_invoerGetal1 = new javax.swing.JTextField();
id_invoerGetal2 = new javax.swing.JTextField();
id_Optellen = new javax.swing.JButton();
jLabel3 = new javax.swing.JLabel();
id_resultaat = new javax.swing.JTextField();
id_Modulus = new javax.swing.JButton();
id_Vermenigvuldigen = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstan ts.EXIT_ON_CLOSE);
jLabel1.setForeground(new java.awt.Color(0, 0, 255));
jLabel1.setText("Getal 1");
jLabel2.setForeground(new java.awt.Color(0, 0, 255));
jLabel2.setText("Getal 2");
id_invoerGetal1.addActionListener(new java.awt.event.ActionListener()
public void actionPerformed(java.awt.event.ActionEvent evt)
id_invoerGetal1ActionPerformed(evt);
id_Optellen.setToolTipText("Getallen met elkaar optellen");
id_Optellen.setLabel("Optellen");
jLabel3.setFont(new java.awt.Font("MS Sans Serif", 1, 11));
jLabel3.setForeground(new java.awt.Color(0, 0, 255));
jLabel3.setText("Antwoord");
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id_Modulus.setToolTipText("De rest na deling");
id_Vermenigvuldigen.setText("Vermenigvuldigen");
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getContentPane().setLayout(layout);
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.add(layout.createSequentialGroup()
.add(27, 27, 27)
.add(layout.createParallelGroup(org.jdesktop.layou t.GroupLayout.LEADING, false)
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layout.createParallelGroup(org.jdesktop.layout.Gro upLayout.LEADING)
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// TODO add your handling code here:
public static void main(String args[])
java.awt.EventQueue.invokeLater(new Runnable()
public void run()
new ED5_1().setVisible(true);
//String Optellen;
//Optellen = id_invoerGetal1.getText();
//id_resultaat.setText(Optellen);
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private javax.swing.JButton id_Optellen;
private javax.swing.JButton id_Vermenigvuldigen;
private javax.swing.JTextField id_invoerGetal1;
private javax.swing.JTextField id_invoerGetal2;
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private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
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JavaBeginner wrote:
you are right I know.
i need more practiseYes, lots.
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between what?
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Sure you're not a student trying to sucker somebody into doing your homework for them?
Are you offering money?
Honestly, based on the previous post that I've answered I don't think you have enough basic Java knowledge. You will be a time sink for anyone foolish enough to bother answering all the questions that you'll be posting here. I'm not interested.
%

How to check if a constraint existed in the table and drop it?

Hi all,
I want to drop a constraint from a table. I do not know if this constraint already existed in the table. So I want to check if this exists first.
Below is my query:
DECLARE
itemExists NUMBER;
BEGIN
itemExists := 0;
SELECT COUNT(CONSTRAINT_NAME) INTO itemExists
FROM ALL_CONSTRAINTS
WHERE UPPER(CONSTRAINT_NAME) = UPPER('my_constraint');
IF itemExists > 0 THEN
ALTER TABLE my_table DROP CONSTRAINT my_constraint;
END IF;
END;
Here is the error I got when I executed the above query:
ORA-06550: line 11, column 5: PLS-00103: Encountered the symbol "ALTER" when expecting one of the following: ( begin case declare exit for goto if loop mod null pragma raise return select update while with <an identifier> <a double-quoted delimited-identifier> <a bind variable> << continue close current delete fetch lock insert open rollback savepoint set sql execute commit forall merge pipe purge
Please help me with this!
Greatly appreciate!
Khoi Le

Yes, I also tried to put the pl-sql in the Execute Immediate. However, the error still remains
EXECUTE IMMEDIATE 'DECLARE
itemExists NUMBER;
BEGIN
itemExists := 0;
SELECT COUNT(CONSTRAINT_NAME) INTO itemExists
FROM ALL_CONSTRAINTS
WHERE UPPER(CONSTRAINT_NAME) = UPPER('my_constraint');
IF itemExists > 0 THEN
ALTER TABLE my_table DROP CONSTRAINT my_constraint;
END IF;
END';
I execute the above code via running the batch file.
Here is the error after I ran the batch file:
ORA-06550: line 11, column 5:
PLS-00103: Encountered the symbol "ALTER" when expecting one of the following:
( begin case declare exit for goto if loop mod null pragma
raise return select update while with <an identifier>
<a double-quoted delimited-identifier> <a bind variable> <<
continue close current delete fetch lock insert open rollback
savepoint set sql execute commit forall merge pipe purge
The symbol "lock was inserted before "ALTER" to continue.
ORA-06550: line 11, column 53:
PLS-00103: Encountered the symbol "DROP" when expecting one of the following:
. , @ in <an identifier>
<a double-quoted delimited-identifier> partition subpartition
ORA-06512: at line 2117
I can not manually drop it. I need to do this via running an update script file.
Is there a different way to accomplish this?
Thank you very much!

Performance of Sales order creation on Business Suite on HANA

Hi,
I understand that HANA column tables are read and insert optimized. I would like get some clarification on the following scenario.
Assume that in the ECC (non HANA DB) the sales order creation process is taking few hours to complete due to the sheer number of line items and associated bill of materials, serial numbers etc. If the same process is running on the Business suite on HANA system will there be any considerable performance improvement (because HANA column tables are insert optimized)?
Thanks for your help on this.
Thanks
Vinod

Yes Vinod,
that is the general idea.
For more details please have a look at Hasso Plattner's latest book A Course in In-Memory Data Management: The Inner Mechanics of In-Memory Databases.
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Thank you
erich

Lock in Insert?

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