Select Update nowait exception
I want to implement the selection procedure for error handling update nowait. I found it might be busy ORA-54 (resource). Are there any other exceptions that may occur during the selection for update nowait? I mean exceptions that are typical to select for update nowait scenarios, I know there could be many more as ORA - 942 (table or view does not exist).Thank you
See the discussion here. Especially the response of padders
Tags: Database
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Hello world:
I have a cursor that selects two lines and it is put for UPDATE NOWAIT. I would like to create 2 different messages one for: P2_1_ID and the other for: P2_2_ID where they are updated by someone else. I don't know how to do this. Currently I don't have a way to check what element (: P2_1_ID or: P2_2_ID) has been updated. I currently have a generic message when each item is updated.
Here's what I have so far...
Help, please!declare CURSOR cur1 IS SELECT * FROM table1 WHERE col_id IN (:P2_1_ID,:P2_2_ID) FOR UPDATE NOWAIT; v_table1 table1%ROWTYPE; v_count PLS_INTEGER; LOCKED_OUT EXCEPTION; PRAGMA EXCEPTION_INIT(LOCKED_OUT, -54); begin OPEN cur1; FETCH cur1 INTO v_table1; ... ... CLOSE cur1; EXCEPTION WHEN LOCKED_OUT THEN -- handle exceptions end;
Thank you
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Published by: bino April 21, 2010 10:40The only way I could think of is to create the different sliders, one for each element. You can then great what rank/cursor is locked.
Example not tested
declare CURSOR cur1 in (in_id in number) IS SELECT * FROM table1 WHERE col_id = in_id; FOR UPDATE NOWAIT; v_count PLS_INTEGER; LOCKED_OUT EXCEPTION; PRAGMA EXCEPTION_INIT(LOCKED_OUT, -54); begin begin for row1 in cur1(:P2_1_ID) loop ... end loop; EXCEPTION WHEN LOCKED_OUT THEN -- handle exceptions end; begin for row1 in cur1(:P2_2_ID) loop ... end loop; EXCEPTION WHEN LOCKED_OUT THEN -- handle exceptions end; end;
Published by: Sven w. 21 April 2010 19:53 - changed to avoid duplication of cursor
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Hi Mike,.
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http://www.Microsoft.com/downloads/details.aspx?FamilyId=e8ba3e56-d8fe-4a91-93Cf-ed6985e3927b&displaylang=en#AffinityDownloads (http://www.microsoft.com/downloads/details.aspx?FamilyID=e8ba3e56-d8fe-4a91-93cf-ed6985e3927b&displaylang=en#AffinityDownloads)
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But what is frustrating so it won't let me update the selected updates.
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Upgrade to Windows Home version 1511 10, 10586
Update for Windows 7 for x 64-based systems (KB3140245)
Download size: 627 KB
You may have to restart your computer for this update is taken into account.
Update type: Optional
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More information:
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This error ORA-00054: resource busy and acquire with NOWAIT.
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Help, please...
used as below
SELECT... FOR UPDATE NOWAIT.
UPDATE...
COMMIT;Since the 9i, we specify WAIT a number of seconds that we want to wait until the ORA-00054 is thrown. Learn more. Otherwise, do not specify and run the risk of th esession suspended forever.
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Select / Update Ansdo_elem_info
Hello
I'm trying to select/set to update the Ansdo_elem_info in the query where clause of a table space. Example:
Select cloa a.sdo_elem_info where a.sdo_elem_info_array (1,4,1);
Then, I want to update this table. Your help on this will be appreciated.
Thanks, MKMK,
Sorry for the delay: been away consulting.
Here is an approach no SQL for update.
create or replace Function UpdateElemInfo( p_elem_info in mdsys.sdo_elem_info_array, p_offset in number, p_etype in number, p_interpretation in number, p_new_offset in number, p_new_etype in number, p_new_interpretation in number) Return mdsys.SDO_Elem_Info_Array Is v_elements number; v_elem_info mdsys.sdo_elem_info_array; Begin If ( p_elem_info is not null And p_elem_info.COUNT > 0 ) Then v_elem_info := new mdsys.sdo_elem_info_array(); v_elements := ( ( p_elem_info.COUNT / 3 ) - 1 ); <
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drop table cloa; create table cloa ( fid number, geom mdsys.sdo_geometry); insert into cloa values (1, mdsys.sdo_geometry(2002,null,null,mdsys.sdo_elem_info_array(1,2,1),mdsys.sdo_ordinate_array(1,1,2,2))); insert into cloa values (2, mdsys.sdo_geometry(2002,null,null,mdsys.sdo_elem_info_array(1,2,2),mdsys.sdo_ordinate_array(2,2,3,3,4,2))); insert into cloa values(3, MDSYS.SDO_GEOMETRY(2002,null,null,MDSYS.SDO_ELEM_INFO_ARRAY(1,4,1,5,2,1),MDSYS.SDO_ORDINATE_ARRAY(1,1,2,2,3,3,4,2))); commit; with eqry /* pivot array to reconstruct logical element info triplet in one row */ as ( SELECT fid, trunc((rownum - 1) / 3,0) as rid, sum(case when mod(rownum,3) = 1 then e.column_value else null end )as offset, sum(case when mod(rownum,3) = 2 then e.column_value else null end) as etype, sum(case when mod(rownum,3) = 0 then e.column_value else null end) as interpretation FROM cloa l, TABLE(l.geom.sdo_elem_info) e group by fid, trunc((rownum - 1) / 3,0) order by 1,2 ) SELECT sdo_geometry(c.geom.sdo_gtype, c.geom.sdo_srid, c.geom.sdo_point, CAST(MULTISET(SELECT case when mod(rownum,3)=1 then case when offset = 1 and etype = 4 then 1 else offset end else case when mod(rownum,3)=2 then case when offset = 1 and etype = 4 then 2 else etype end else case when mod(rownum,3)=0 then case when offset = 1 and etype = 4 then 1 else interpretation end else null end end end FROM eqry e, (select LEVEL FROM DUAL connect by level < 4) WHERE e.fid = c.fid ) as mdsys.sdo_elem_info_array ), c.geom.sdo_ordinates) as geom from cloa c; GEOM ------------------------------------------------------------------------------------------------------------------- MDSYS.SDO_GEOMETRY(2002,null,null,MDSYS.SDO_ELEM_INFO_ARRAY(1,2,1),MDSYS.SDO_ORDINATE_ARRAY(1,1,2,2)) MDSYS.SDO_GEOMETRY(2002,null,null,MDSYS.SDO_ELEM_INFO_ARRAY(1,2,2),MDSYS.SDO_ORDINATE_ARRAY(2,2,3,3,4,2)) MDSYS.SDO_GEOMETRY(2002,null,null,MDSYS.SDO_ELEM_INFO_ARRAY(1,2,1,5,2,1),MDSYS.SDO_ORDINATE_ARRAY(1,1,2,2,3,3,4,2)) 3 rows selected
I hope this helps.
concerning
Simon -
PL SQL program unit does not compile with cursor for UPDATE NOWAIT
All,
I am trying to use a cursor for UPDATE NOWAIT to avoid hung sessions on the shape of the front end.
I am using a syntax such as:
CURSOR my_cur (p_val)
IS
SELECT 1
FROM my_table
WHERE my_col = p_val
FOR UPDATE NOWAIT.
However, later in the procedure, when I try to refer to the cursor with the following syntax:
(after opening/get the cursor...)
UPDATE my_table
SET my_col2 =: MY_BLOCK. FOO
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Error 404 on line 140, column 30
cursor 'MY_CUR' must be declared with to use with the CURRENT UPDATES OF
The strange thing is that if I remove the "NOWAIT" keyword, the program unit compiles.
If nothing else has noticed this? No workaround or patch solution? Is this a known bug?
Thank you very much
-ChrisTry one
FOR UPDATE OF ID NOWAIT;
where ID is the name of a column in the table.
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