REG - DB-FILE MULTI-BLOCK Read Count?
Aug 30, 2012
we are generating Entity beans at java appication. where application is connecting to DB and copy Table structure in Java class file. when this process start, oracle process takes 100% CPU. while there is no wait event at DB level. only queries are fired on oracle sys tables.(user_tables,user_constraints,etc..)
On trial and error based, we have changed this parameter and that java process works fine. how this parameter effect the on oracle system table.
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Jul 24, 2010
I have a multi record control block (basically a text item displaying 6 records) where user enters values and I want to process the values using pre-insert trigger.
I want to read value in each record and then do some tasks using a pre-insert trigger before I commit the values. To navigate between the records I was using first_record, next_record, clear_record built-ins but it gives errors like "40737-illegalrestricted procedure next_record in pre-insert trigger".
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Apr 17, 2010
When i was starting my database .there was an error
ora-00333:redo log read error block 203 count 8192.
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Apr 26, 2011
I am trying to create standby with oracle 10g R2 from Solaris 5.10 (sun ultrasparc X86-64 bit) to Solaris 5.10(Intel Xeon 64 bit). All the mount points are the same as primary server. All the data files are at location as specified in control file. I created standby control file from primary. All the control files are at location specified in pfile.
When I am trying to mount database I am getting following error.
ORA-00202: control file: '/oracle/BP1/ctl1.dbf'
ORA-27047: unable to read the header block of file
ORA-205 signalled during: alter database mount...
I try to open database with trace file also but got following error..
ORA-01503: CREATE CONTROLFILE failed
ORA-01565: error in identifying file
'/oracle/BP1/sapdata1/system_1/system.data1'
ORA-27047: unable to read the header block of file
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Nov 19, 2010
i have multi data block filed. and checkbox field which based on control block...My task is when i check checkbox only one field should enabled and my mouse goes to that field
e.g
item11 item21 item31 chkbox1
item12 item22 item32 chkbox2
Scenario like this :
My item field based on data block and checkbox based on control block,while i checked chkbox1 , only item31 on that current record should be enabled and i changed value only on that field
when i checked chkbox1 , my cursor goes to item31...not item32
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Aug 2, 2007
I have a string like this:
s_list varchar2(234) :=
'asdasd
asfsdf
dsfsdfs
dfsdfs';
How can I find the number of lines in this string? I tried using
INSTR('s_list', '
', 1, 1)
but it gives 0.
Is there any inbuilt function/proc SQL or PL/SQL which can do this?
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May 3, 2011
i have two blocks called BLOCK1 AND BLOCK2
BLOCK1 is a multi record block with a field, FIELD_A
BLOCK2 is a multi record block with fields FIELD_B,FIELD_C,FIELD_D
i have a button on BLOCK1 called 'FETCH'.
The requirement is when_button_pressed on 'FETCH'. BLOCK2 must be populated for each record of BLOCK1. Population logic is based on, values from a database table TABLE_A which has got column values corresponding to all fields of BLOCK1 and BLOCK2.
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Oct 17, 2008
I have a multi row datablock with scroll bar. In each record I have a checkbox (let's call it check_record), and above these checkboxes, there is a checkbox to check/uncheck all the checkboxes (let's call it check_all).
If all the "check_record" are checked, the "check_all" must be automatically checked, else if one "check_record" is not checked, it will be unchecked.
To do that, I have put a loop in the WHEN-CHECKBOX-CHANGED of "check_record" to loop over all the "check_record" and see if they are checked or not.
Normally, this loop will automatically go to last record. But to go back to the selected record (where the "check_record" was clicked), I have used go_record with the record ID.
==> No problem in that, it's working fine.
Now, this is my problem: When clicking on a "check_record", the scroll bar moves to show the selected row in the first (or last) VISIBLE row in the data block, and that's because of using "GO_RECORD(<CURRENT_RECORD>)".
Example: if I select the third record in the data block, the scroll bar moves to show it in the first visible row.
Is there a way to "freeze" the scroll bar and keep the record in its initial position in the data block?
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May 18, 2010
I have two block namely block-A, Block -B
Block A data queried from a view (it have 10 columns).
Block b (it have 5 columns all columns are same in block A column)
When i query of block - A i have to receive the same copy in Block B too.
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Aug 4, 2013
I have a master detail form and in the detail block when i am scrolling up the records are getting disappeared , but actually they are not getting deleted, once if i requery the data will appear, what could be the problem.I am using the property change record for block.
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Mar 9, 2011
I have a multi record block, which, once filled, I do not want to allow manual insertions from the last new record. For that, I do:
set_block_property('block name', insert_allowed, property_false)
The problem comes, when I want to change a checkbox item column from one record already informed.
I can not do that, after setting the block property, although I change item properties accordingly.
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Aug 10, 2013
I have a form with 3 blocks in our oracle application. Block1 is a single record block. Block2 and block 3 are multi record blocks with no of records 5. Block1 and block2 are in same canvas1 of a window1. Block3 is in canvas2 of window2. There is a relation between block1 and block2. Another relation with block2 and block3 is also available.
Now my issues is while creating a record, first i entered the data in block1 (which is a single record block). Then i entered data in five rows of second block. Then i entered data in block3(multi record block) by pressing the button in block2 (each button for each row). But before saving the entire form, when i checked the data in block3 by pressing the button of first record of block2, screen shows empty.
Code in button of block2 is as follows
show_window(WIN2');
Go_block('BLOCK3');
Code in button of block3 is as follows
hide_window('WIN2');
go_block('BLOCK2');
If post; is included in block3 button. then problem we will be solved. But we don't want to use post; as it lock the table.
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Feb 12, 2012
I want to ask what's wrong with my multi-record block.
When i click a node on my tree, it should display the records on it. For example, my root node is Sections, the parents are 1st sem and 2nd sem. In each sections in 1st sem, whenever i click a child node, it should display on display items. I have set its number of items displayed to 9. Since each sections have 9 subjects. The problem when i run it is that it displays many rows.
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Apr 21, 2010
i have form have one multi record block and sing record block. In multi record block having an item namely Excise_value. I want to find the sum of total Excise_Value for all the record. How to accomplish this.
PS: I want to use the Formula/summary property in forms
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Sep 5, 2012
I have a problem validating a multi-record block. I need to put the validation after the user clicks save. The custom validation should run through all the records in the multi-record block. But instead of validating all records, it will only validate the record where the cursor is located before the user hits save.
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Sep 14, 2011
Could i uncheck the checked checkboxes in a mutirecord block by any command?
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Jun 29, 2011
I am working on forms 6i.
I have datablock 'EMP', it's multi record block. I have a button 'CREATE', I have 'commit_form' in 'When button pressed' trigger, to commit records. It's working fine.
Now, i have a check box in the same block, i want to insert records which are checked only.
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Jun 15, 2011
I have data block that has hundreds of records. On a screen I display 20 records at a time. On that same screen I have "find badge" function where user types badge/employee id and presses a button to find the record in a data block. I have no problem finding the records in a list and pointing the curser to appropriate record. My question is (which is a user request) if the badge/employee id is found to make that record to be the first record in a list.
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Mar 28, 2011
The main qn is in the subject line.
I have used the following code
GO_BLOCK('CHILD_BLK');
FIRST_RECORD;
LOOP
IF NVL(:CHILD_BLK.SELECT_FLAG,'N')='Y' THEN
V_REC_NO := GET_BLOCK_PROPERTY('CHILD_BLK',CURRENT_RECORD);
SET_ITEM_INSTANCE_PROPERTY('CHILD_BLK.ASSET_DESC',
V_REC_NO,
[code]....
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Mar 13, 2013
I have a multi-record block with several text items.
On one of the text items i want to enter a value and then check whether the same value for the item has already been entered on any other records within the block.
If it has already been entered then i want to display a message and null out the field.
I have tried using app_record.for_All_records from a when-validat-item trigger but this does not work as you get a 'FRM-40737 Illegal restricted procedure go_block in when-validate-item trigger ' error
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Aug 31, 2011
I am working in form 6i, EBS11i. I have a multi record data block, i am inserting checked records only using below logic.
ON-INSERT Trigger:
if checkbox_checked('block.checkbox') THEN
insert_record;
end if;
Requirement: Let us say, i have 4 records, i checked 2 records.. inserted them. Now if i want to insert other 2 unchecked records, it's not accepting, is it possible to insert records which are not checked after insertion.
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Aug 31, 2010
My understanding of DB_FILE_MULTIBLOCK_READ_COUNT parameter is that it affects only Full Table Scans and Fast Full Index Scans - all other disk retrieval is single block.If so, then maybe I'm reading this trace incorrectly:
select /*+ first_rows */ pk
from test_join_tgt
where pk >= 0
and rownum > 1
call count cpu elapsed disk query current rows
------- ------ -------- ---------- ---------- ---------- ---------- ----------
Parse 1 0.01 0.00 0 0 0 0
Execute 1 0.00 0.00 0 0 0 0
Fetch 1 21.48 27.77 22368 22134 0 0
------- ------ -------- ---------- ---------- ---------- ---------- ----------
total 3 21.49 27.78 22368 22134 0 0
[code]...
What the heck is going on with the Multi-block reads in the Range Scan?
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Nov 17, 2011
I am in charge of several instances located on a Linux server CentOS, virtualized on a ESX 3.5 environment.
From time to time (every 4 to 5 days), I have some errors in the alert.log. Last occurence was last night :
Corrupt block relative dba: 0x01004e12 (file 4, block 19986)
Fractured block found during buffer read
Data in bad block:
type: 6 format: 2 rdba: 0x01004e12
last change scn: 0x0000.131aaa5b seq: 0x2 flg: 0x04
[Code] ........
We are doing user manual backup (with BEGIN/END BACKUP) every night at 8PM, ending at 9PM approx. Then, fractured blocks never occur during backups. At 1AM, the maintenance window is opening, thus explaining the GATHER_STATS_JOB job.
When I check corruption on early morning, I am always unable to reproduce the problem. DBV is OK without issues. We never had a problem with the data itself, whatever it is a table or an index in the reported failed block.
I would like to know what could cause these logical corruption, and how to stop them ?
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Jan 25, 2011
i have an error with block corruption
Error: Corrupt block relative dba: 0x01c12a58 (file 7, block 76376)
What all the ,methods I can go for if we are working on a production environment with out any down time.
I can go for dbms repair package and restore and recover
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Jan 9, 2012
The stand alone stored procedure has 2 parameter, an IN and OUT...
CREATE OR REPLACE PROCEDURE someprocedure( businessdate IN NUMBER,
tablename OUT VARCHAR2)
This procedure has multiple inner blocks. Intention is to control execution of each of the inner blocks basing on the value of flag field obtained from a "processlogtable". This processlog table has structure as below.
jobname varchar2(100)
controldate (date)
controlflag varchar2(1)
I have the below code snippet at the beginning of each inner block that checks value of the flag and then proceeds with execution of that block. The intent is to avoid redundant call of a block that has successfully executed first time. That is, once a specific inner block fails for some reason, the re-execution of the stored procedure should AVOID re-executing the PRIOR successed steps.
I've the code set up as below, but the prior successed block(s) code gets re-executed again once the procedure is re-executed after a failure.
CREATE OR REPLACE PROCEDURE someprocedure( businessdate IN NUMBER,tablename OUT VARCHAR2)
CURSOR c_missingtablename
IS
SELECT datatablename
FROM (
SELECT UPPER(datatablename ) TABLE
FROM
WHERE datatableName IN ('Aaa','BbB','CcC');
[code]....
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Jul 10, 2012
The block size of my db(10gr2) is 8k, and the db is on the raw device file system on a aix machine.
OS block size is 512k.
How much block will be read from disk when a single oracle io call occurs? Which one is currect, 8K or 512K?
If the block size for a single io call depends on the os block size (512k), I think os block size need to be tuned for oracle block size (8k). If we use raw device file system, os level block size has no meaning?
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Oct 1, 2011
I have a list block of two fields item_name, item_price. User can enter as many item`s as she/he wants. But, before saving the record system should calculate the total and give error if sum is grater then or less than 100.
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Aug 20, 2011
how to count how many items present in a particular data block in oracle forms 10g.whether it is a text_item or display_item or list_item etc is there any method to do this.
i have written this when-button pressed but the problem is how to get the next item name in the block
DECLARE
V_COUNT NUMBER:=0;
V_FIRSTITEM VARCHAR2(100):='';
BEGIN
GO_BLOCK('BLOCK_ITEMCOUNT');
V_FIRSTITEM := GET_BLOCK_PROPERTY('BLOCK_ITEMCOUNT', FIRST_ITEM);
LOOP
[code]....
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Mar 5, 2011
I am often supplied with a list of numbers to query against & normally take the easy option of editing the file & placing the select on each line. Like so. what to do to loop this. The input file would just be the numbers in a flat file.
Select status from thetable where MPN=�01234567890�;
Select status from thetable where MPN=�12345678901�;
Select status from thetable where MPN=�23456789012�;
Select status from thetable where MPN=�34567890123�;
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Sep 17, 2013
I have a requirement to load the csv into DB using oracle forms or pl/sql code, but the problem is they are asking to load the csv file which will not come in sequence every time.For Example: File1:col1 col2 col3 col4 file 2col3 col2 col4 col1 file 3col4 col2 col1 col3 Depending on the header we need to load the file,Can we load like this or not?
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