[CORRECTION] Optional clause in the DELETE statements.
HelloI have always used the FROM clause in a delete statement.
Delete * from TableName.
Now I'm confused, is optional FROM?
Delete TableName is equivalent to Delete * from Tablename?
user12022313 wrote:
HelloI have always used the FROM clause in a delete statement.
Delete * from TableName.
Now I'm confused, is optional FROM?
Yes, it is not compulsory.
>
Delete TableName is equivalent to Delete * from Tablename?
It is equivalent, but would be better coded as
TRUNCATE TABLE TableName
Tags: Database
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Hello
I have this scenario where I have to pass multiple values to a parameter of a procedure of monkey and then collect in another variable (the lines can be multiple).
The parameter must be used in the where clause of the statement select here I create a sample table for the problem.
Create table test_tab (number of trans_id, cmts varchar2 (50));
insert into test_tab values (568890112115, ' wnlb-CMTS-11-04' ");
insert into test_tab values (568890112115, ' wnlb-CMTS-11-04' ");
insert into test_tab values (568890112115, ' wnlb-CMTS-11-01' ");
insert into test_tab values (568890112115, ' wnlb-CMTS-11-01' ");
insert into test_tab values (568890112115, ' wnlb-CMTS-11-01' ");
insert into test_tab values (568890112115, ' wnlb-CMTS-12-02' ");
insert into test_tab values (568890112115, ' wnlb-CMTS-12-02' ");
This is so all cmts have same trans_id but different name
This query gives the result as -
Select the cmts, count (1)
of test_tab
where cmts ("wnlb-cmts-11-04','wnlb-cmts-11-01", "wnlb-CMTS-11-02'")
and trans_id = 568890112115
Cmts group;
COUNTY OF CMTS
WNLB-CMTS-11-04 2
3 WNLB-CMTS-11-01
Now, I want to use this query in a PLSQL block like where I can spend the CMTS collection and trans_id as a scalar variable and once again an OUTPUT parameter that holds the result of the query.
I use OUT parameter because it will be called to the JAVA program.
Here, I write a PACKAGE for it but it gives me compilation error!
create or replace package CMTS_SUCCESS_FAILED_API
is
type t_item_name is table of index varchar2 (50) by pls_integer;
TYPE t_cmts_count () IS RENDERING
CMTS VARCHAR2 (30),
number of NUMBER
);
type t_reseg_dtl is table of index t_cmts_count by pls_integer;
procedure CMTS_SUCCESS_FAILED_RESEG_ORDR (p_item_name t_item_name, p_trans_id in numbers, p_reseg_dtl to t_reseg_dtl);
end CMTS_SUCCESS_FAILED_API;
/
Now that I have created a different PACKAGE BODY, but none don't work!
1.
create or replace package CMTS_SUCCESS_FAILED_API
is
type t_item_name is table of index varchar2 (50) by pls_integer;
TYPE t_cmts_count () IS RENDERING
CMTS VARCHAR2 (30),
number of NUMBER
);
type t_reseg_dtl is table of index t_cmts_count by pls_integer;
procedure CMTS_SUCCESS_FAILED_RESEG_ORDR (p_item_name t_item_name, p_trans_id in numbers, p_reseg_dtl to t_reseg_dtl);
end;
/
create or replace package CMTS_SUCCESS_FAILED_API body
is
procedure CMTS_SUCCESS_FAILED_RESEG_ORDR (p_item_name t_item_name, p_trans_id in numbers, p_reseg_dtl to t_reseg_dtl)
is
Start
I'm in p_item_name.first... p_item_name. Last
loop
Select the cmts, count (1)
bulk collect into p_reseg_dtl (i)
of test_tab
where cmts = p_item_name (i)
and trans_id = p_trans_id
Cmts group;
end loop;
for r in p_reseg_dtl.first... p_reseg_dtl. Last
loop
dbms_output.put_line (p_reseg_dtl (r). TRANSACTION_ID | » '|| p_reseg_dtl (r). JOB_STATUS | » '|| p_reseg_dtl (r). CMTS);
end loop;
end CMTS_SUCCESS_FAILED_RESEG_ORDR;
end CMTS_SUCCESS_FAILED_API;
While I run this procedure it is said TOO_MANY LINES.
2.
create or replace package CMTS_SUCCESS_FAILED_API body
is
procedure CMTS_SUCCESS_FAILED_RESEG_ORDR (p_item_name t_item_name, p_trans_id in numbers, p_reseg_dtl to t_reseg_dtl)
is
cursor c_dtl is
Select the cmts, count (1)
of test_tab
where cmts = p_item_name < < error
and trans_id = p_trans_id
Cmts group;
Start
Open c_dtl;
collect the fetch c_dtl in bulk in p_reseg_dtl;
close c_dtl;
-for i in p_item_name.first... p_item_name. Last
-loop
-end loop;
end;
end;
THIS error GIVES BODY as EXPRESSION IS OF TYPE INCORRECT for where clause where I mark it as "BOLD".
I think Miss me a small detail to add here, but I can't do even now it seems for me that I'm working on it since the morning and SQL are a little complex in real time who also write.
I use-Oracle Database 11 g Enterprise Edition Release 11.2.0.1.0 - 64 bit Production
Please suggest me!
Until then I'm also working on this issue hope will find a solution.
In the database (we show it with a standalone function, you should put it in a package):
create or replace function CMTS_SUCCESS_FAILED_RESEG_ORDR ( p_item_name IN SYS.DBMS_DEBUG_VC2COLL, p_trans_id IN number ) return sys_refcursor is l_refcur sys_refcursor; begin open l_refcur for SELECT cmts , COUNT(*) FROM test_tab WHERE cmts member of p_item_name AND trans_id = p_trans_id GROUP BY cmts; return l_refcur; end CMTS_SUCCESS_FAILED_RESEG_ORDR; /In Java:
import java.math.BigDecimal; import java.sql.CallableStatement; import java.sql.Connection; import java.sql.ResultSet; import java.sql.SQLException; import oracle.jdbc.OracleCallableStatement; import oracle.jdbc.OracleTypes; import oracle.jdbc.pool.OracleDataSource; import oracle.sql.ARRAY; import oracle.sql.ArrayDescriptor; public class SQLCollection { public static void main(String[] args) throws SQLException { System.out.println("Class SQLCollection started."); OracleDataSource ods = null; Connection conn = null; CallableStatement cs = null; ResultSet rset = null; try { ods = new OracleDataSource(); String url = "jdbc:oracle:thin:@//127.0.0.1:1522/orcl.localdomain"; ods.setURL(url); ods.setUser("stew"); ods.setPassword("stew"); conn = ods.getConnection(); conn.setAutoCommit(false); ArrayDescriptor oracleVarchar2Collection = ArrayDescriptor.createDescriptor("SYS.DBMS_DEBUG_VC2COLL", conn); String[] inset = new String[2]; inset[0] = "wnlb-cmts-11-04"; inset[1] = "wnlb-cmts-11-01"; ARRAY ora_inset = new ARRAY(oracleVarchar2Collection, conn, inset); cs = conn.prepareCall("begin ? := CMTS_SUCCESS_FAILED_RESEG_ORDR(?, ?); end;"); cs.registerOutParameter(1, OracleTypes.CURSOR); cs.setArray(2, ora_inset); cs.setBigDecimal(3, new BigDecimal("568890112115")); cs.execute(); // Dump the cursor rset = ((OracleCallableStatement)cs).getCursor(1); while (rset.next()) System.out.println(rset.getString(1) + ": " + rset.getInt(2)); } catch (Exception e) { e.printStackTrace(); } finally { if (rset != null) { rset.close(); } if (cs != null) { cs.close(); } if (conn != null) { conn.close(); } System.out.println("Class SQLCollection ended."); } } } -
How to split string separated by commas and pass to the clause of the select statement
Referring to article How to divide string separated by commas, then pass to clause of a select statement, tquery that there the following plan:
Query1:
select * from emp where ename in ( select regexp_substr('SMITH,ALLEN,WARD,JONES','[^,]+', 1, level) from dual connect by regexp_substr('SMITH,ALLEN,WARD,JONES', '[^,]+', 1, level) is not null );Base1:
Plan hash value: 4242290184 -------------------------------------------------------------------------------------------- | Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | -------------------------------------------------------------------------------------------- | 0 | SELECT STATEMENT | | 1 | 133 | 7 (29)| 00:00:01 | |* 1 | HASH JOIN | | 1 | 133 | 7 (29)| 00:00:01 | | 2 | VIEW | VW_NSO_1 | 1 | 46 | 3 (34)| 00:00:01 | | 3 | HASH UNIQUE | | 1 | | 3 (34)| 00:00:01 | |* 4 | CONNECT BY WITHOUT FILTERING| | | | | | | 5 | FAST DUAL | | 1 | | 2 (0)| 00:00:01 | | 6 | TABLE ACCESS FULL | EMP | 14 | 1218 | 3 (0)| 00:00:01 | -------------------------------------------------------------------------------------------- Predicate Information (identified by operation id): --------------------------------------------------- 1 - access("ENAME"="$nso_col_1") 4 - filter( REGEXP_SUBSTR ('SMITH,ALLEN,WARD,JONES','[^,]+',1,LEVEL) IS NOT NULL)However, the following query generates the plan I want:
Query2:
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But this is a work around to get what you are looking for. But I can't say it's a foolproof method. But anyway here you go.
SQL > var ename_list varchar2 (100)
SQL > exec: ename_list: = 'SMITH, ALLEN, WARD, JONES ';PL/SQL procedure successfully completed.
SQL > select *.
2 of PEM
where the 3 «,» | : ename_list | ',' like '%', | Ename | ',%';EMPNO, ENAME, JOB HIREDATE DEPTNO ID COM SAL MGR
---------- ------ --------- ---------- --------- ---------- ---------- ---------- ----------
7369 SMITH COMMITTED 7902 2975 2 APRIL 81 0 20
7499 ALLEN 7698 1600 20 FEBRUARY SALESMAN 81 300 30
7521 WARD 7698 1250 22 FEBRUARY SALESMAN 81 500 30
7566 JONES MANAGER 7839 2975 2 APRIL 81 0 20SQL > select * from table (dbms_xplan.display_cursor);
PLAN_TABLE_OUTPUT
-------------------------------------------------------------------------------------------------------
SQL_ID, 848zhvbvgf7d6, number of children 0
-------------------------------------
Select * from emp where «,» | : ename_list | ',' like '%', | Ename
|| ',%'Hash value of plan: 2872589290
--------------------------------------------------------------------------
| ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time |
--------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | | | 2 (100) | |
|* 1 | TABLE ACCESS FULL | EMP | 1. 38. 2 (0) | 00:00:01 |
--------------------------------------------------------------------------Information of predicates (identified by the operation identity card):
---------------------------------------------------1 - filter(','||:ENAME_LIST||',' LIKE '%,'||") ENAME "|", %')
19 selected lines.
SQL >
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Session variable in the WHERE clause of the SQL statement
Hey all,.
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$query = "SELECT * from members where user_id = ' $_SESSION ['members']";
Thanks for your help.
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my oracle's 10g and the statement of create table below:
CREATE TABLE S005.q100
(
Q1 tank (1)
)
NOMONITORING;
After you create this table, I ask USER_TABLES, but the value of the follow-up column is YES.
I think there should be no how is? and also I have the same problem with the COMPRESS.
Thank you very much
Hello
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The other variant of this clause is ORGANIZATION INDEX, which means that you will create an organized Index of Table. In other words, it is a table that is stored in a B-tree, like an index.
You also have an EXTERNAL BODY, which means that you will create an external table. Here is generally flat files outside of the database that you can order the database to see tabular to use SQL (read only) against. You will also need the settings on how the data are presented on the file, so that your database knows which column will match that of the data.
The COMPRESS on 10G is known as the "basic compression" and it works on ordinary table segment blocks, which are organized by a bunch of tables.
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Optional parameter in the Select statement.
Hello
Could you let me know on below, I want to make the optional parameter, the user could pass a value or not.
Select *.
of dovur_ert
where model_line_number =: model
and item = nvl (:, 1 );
Thank you
Select *.
of dovur_ert
where model_line_number =: model
and item = nvl (:, point);
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Hi all
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Best regardsJOBID DEPARTMENTID COUNT(*) ---------- ---------------------------------------- ---------- AC_ACCOUNT 110 1 AC_ACCOUNT all_department 1 AC_MGR 110 1 AC_MGR all_department 1 AD_ASST 10 1 AD_ASST all_department 1 AD_PRES 90 1 AD_PRES all_department 1 AD_VP 90 2 AD_VP all_department 2 FI_ACCOUNT 100 5 JOBID DEPARTMENTID COUNT(*) ---------- ---------------------------------------- ---------- FI_ACCOUNT all_department 5 FI_MGR 100 1 FI_MGR all_department 1 HR_REP 40 1 HR_REP all_department 1 IT_PROG 60 5 IT_PROG all_department 5 MK_MAN 20 1 MK_MAN all_department 1 MK_REP 20 1 MK_REP all_department 1 JOBID DEPARTMENTID COUNT(*) ---------- ---------------------------------------- ---------- PR_REP 70 1 PR_REP all_department 1 PU_CLERK 30 5 PU_CLERK all_department 5 PU_MAN 30 1 PU_MAN all_department 1 SA_MAN 80 5 SA_MAN all_department 5 SA_REP 80 29 SA_REP 1 SA_REP all_department 30 JOBID DEPARTMENTID COUNT(*) ---------- ---------------------------------------- ---------- SH_CLERK 50 20 SH_CLERK all_department 20 ST_CLERK 50 20 ST_CLERK all_department 20 ST_MAN 50 5 ST_MAN all_department 5 TotalAgregate TotalAgregate 107 40 rows selected.
ValerieI do not have the HR schema to play with, but isn't it just a nested decode it takes?
for example something like...
select decode(grouping(job_id),1,'TotalAggregate',job_id) as JobID ,decode(grouping(department_id),1,decode(grouping(job_id),1,'TotalAggregate','all_department'),department_id) as DepartmentID ,count(*) from employees group by rollup(job_id,department_id) order by job_id,department_id; -
Can I use truncated and where clause in the statement even?
Hello guys,.
Can I use truncated with where clause in the same statement.
For ex:
TRUNCATE TABLE my_table WHERE id < 500;
If not, that you recommend me to overtemperature to the level of high water line?
By the way
Oracle Database 11 g Enterprise Edition Release 11.2.0.1.0 - 64 bit Productionselect * from v$version;
PL/SQL Release 11.2.0.1.0 - Production
"CORE 11.2.0.1.0 Production."
AMT for 64-bit Windows: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
>
Thank you very much.
Published by: 970992 on 11:14 13.Ara.2012>
Okay I need an increasing amount of space. However, at the same time I want to recover the spaces empty below HWM. So, I need to use less amount of space I am inserting. Therefore, shouldn't use retractable for this?
>
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>
Understanding recoverable unused space
Over time, Update, and Delete on objects within a tablespace can create pockets of empty space that individually are not large enough to be reused for the new data.
>
Most uses of CONTRACTION I've seen are totally useless. If you follow the doc and run the Advisor of segment it will tell you if there is space that can be retrieved and how much. But, even once, for your use even if case will get you will Oracle while you need to reassign the new extensions, then the HWM will just go still higher.If pay you a heavy price in Oracle did a full table scan, update of many blocks from the table, update THE index, impact performance for other users to access the table during the SHRINK and reallocate extensions (maybe even some of the same areas) when you insert more data.
Do not SHRINK unless you know it's necessary.
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Hi all
I use the code to update the data of specific secondary partition using oracle merge statements below.
I'm getting the name of the secondary partition and pass this string to the secondary partition clause.
The Merge statement is a failure, indicating that the specified secondary partition does not exist. But the partition under do exists for the table.
We use a server Oracle 11 GR 2.
Here is the code I use to fill in the data.
declare
ln_min_batchkey PLS_INTEGER;
ln_max_batchkey PLS_INTEGER;
lv_partition_name VARCHAR2 (32767).
lv_subpartition_name VARCHAR2 (32767).
Start
FOR m1 IN (SELECT (year_val + 1) AS year_val, year_val AS orig_year_val)
FROM (SELECT DISTINCT
To_char (batch_create_dt, 'YYYY') year_val
OF stores_comm_mob_sub_temp
ORDER BY 1)
ORDER BY year_val)
LOOP
lv_partition_name: =.
() scmsa_handset_mobility_data_build.fn_get_partition_name
nom_table_p = > 'STORES_COMM_MOB_SUB_INFO ',.
p_search_string = > m1.year_val);
FOR m2
IN (SELECT DISTINCT
'M' || To_char (batch_create_dt, 'MM') AS month_val
OF stores_comm_mob_sub_temp
WHERE TO_CHAR (batch_create_dt, 'YYYY') = m1.orig_year_val)
LOOP
lv_subpartition_name: =.
() scmsa_handset_mobility_data_build.fn_get_subpartition_name
nom_table_p = > 'STORES_COMM_MOB_SUB_INFO ',.
p_partition_name = > lv_partition_name,
p_search_string = > m2.month_val);
DBMS_OUTPUT. Put_line (' lv_subpartition_name = > ' | lv_subpartition_name |' and lv_partition_name = > ' | lv_partition_name);
IF lv_subpartition_name IS NULL
THEN
DBMS_OUTPUT. Put_line ("to the INTERIOR of FI = > ' |") M2.month_val);
INSERT INTO STORES_COMM_MOB_SUB_INFO (T1)
T1.ntlogin,
T1.first_name,
T1.last_name,
T1.job_title,
T1.store_id,
T1.batch_create_dt)
SELECT t2.ntlogin,
T2.first_name,
T2.last_name,
T2.job_title,
T2.store_id,
T2.batch_create_dt
OF stores_comm_mob_sub_temp t2
WHERE TO_CHAR (batch_create_dt, 'YYYY') = m1.orig_year_val
AND'M '. To_char (batch_create_dt, 'MM') =
M2.month_val;
ELSIF lv_subpartition_name IS NOT NULL
THEN
DBMS_OUTPUT. Put_line (' INSIDE ELSIF = > ' | m2.month_val);
MERGE (SELECT *)
OF stores_comm_mob_sub_info
SUBPARTITION (lv_subpartition_name)) T1
USING (SELECT *)
OF stores_comm_mob_sub_temp
WHERE TO_CHAR (batch_create_dt, 'YYYY') =
M1.orig_year_val
AND'M '. To_char (batch_create_dt, 'MM') =
M2.month_val) T2
WE (T1.store_id = T2.store_id
AND T1.ntlogin = T2.ntlogin)
WHEN MATCHED
THEN
GAME UPDATE
T1.postpaid_totalqty =
(NVL (t1.postpaid_totalqty, 0))
(+ NVL (t2.postpaid_totalqty, 0));
T1.sales_transaction_dt =
LARGEST)
NVL (t1.sales_transaction_dt,
T2.sales_transaction_dt),
NVL (t2.sales_transaction_dt,
T1.sales_transaction_dt)),
T1.batch_create_dt =
LARGEST)
NVL (t1.batch_create_dt, t2.batch_create_dt),
NVL (t2.batch_create_dt, t1.batch_create_dt))
WHEN NOT MATCHED
THEN
INSERT (t1.ntlogin,
T1.first_name,
T1.last_name,
T1.job_title,
T1.store_id,
T1.batch_create_dt)
VALUES (t2.ntlogin,
T2.first_name,
T2.last_name,
T2.job_title,
T2.store_id,
T2.batch_create_dt);
END IF;
END LOOP;
END LOOP;
COMMIT;
end;
/
Really appreciate your input here.
Thank you
MK.Hello
You can use "immediate execution" what works.
Thank you
-
Preserve the default state and the link using cookies
Hello
I don't know where to post this with the re-design of this forum; It has been a while so please forgive me if this is in the wrong g spot.
I have a very basic link, wrapped in a UL tag.
I use JQuery to give links a color when they are clicked by performing a function Add/Remove class, the status of the connection is more preserved by cookies so if a user returns to a page; It shows which tab they were viewing.
The problem is; It is a single page and I want to set a default link or tab; say one. I don't know how to do this.
That's what I'm looking for to accomplished:
- A user accesses the page and the first link is red (default)
- If the user clicks another link that the link is active and the first link loses its default status
- When the user returns the first link is nolonger by default, that's all that bind the selected user on first visit; This is because this link was Micaela using cookies.
- The first link will ONLY maintain the State by default, if the user deletes his cookies or visits to the page for the first time.
Here's a piece of JQuery, I used to maintain the selected state:
{$(document) .ready (function ()}
var idActive = $.cookie ('cookieActive');
If {(idActive)
$('#'_+_idActive).addClass ('activeLink');
}
$('_ul_li_a').click (function () {}
ID var = $(this) .attr ('id');
$("ul_li_a").removeClass ("activeLink");
$(this) .addClass ("activeLink");
$('cookieActive', id) .cookie.
$.cookie('cookieactive', id, {expires: 10000});
});
});
I guess your jQuery works the way you want, and the only problem is how to define the default value.
In this case, give your default link an ID, such as "default". Then add an else clause of the conditional statement in your jQuery:
If {(idActive)
$('#'_+_idActive).addClass ('activeLink');
} else {}
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an INTO clause in this SELECT statement
Hello
This query is to start an error, an INTO clause in the SELECT statement. I have a line in my table
DECLARE
TNom VARCHAR (100);
BEGIN
Select tNom under Tnom in t_conf where Tna = 'Home';
If instr (tNom, 'living room') > 0
then return true;
otherwise return false;
end if;
END;
DECLARE
v_Tname VARCHAR (100);
BEGIN
Select Tname in v_Tname t_conf where Tna = 'Home';
If instr (v_Tname, "living room") > 0
then return true;
otherwise return false;
end if;
END;
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Need help to set a DELETE statement.
I have a table that contains the records of files. Files come in a bouquet each week. So, we need to delete records from a table to the corresponding fields and load the table with up-to-date data.
In doing so, the DELETE statement takes a long time. Need help with this setting.
Here are the details.
(1) total number of records in the table: 23 million records.
(2) approximate records deleted each time: 500 K to 1.5 million.
(3) table is partitioned on a PERIOD key. That is, each partition will have the data for a given period.
(4) table is not indexed
(5) removal occurs on a combination of 2 fields (PERIOD + BATCH).
Here is the query and the plan:
===========================================================
SQL > EXPLAIN PLAN SET STATEMENT_ID = 'TSH' FOR
2 REMOVE / * + PARALLEL(DETAIL_UNKNOWN,10) * / u DETAIL_UNKNOWN
3 WHERE u.FLBATCHID = 'PCAFRINTERMAR1105' AND u.N_PER6 = 201214
4;
He explained.
SQL > SET LINESIZE 130
SQL > SELECT * FROM TABLE (DBMS_XPLAN. DISPLAY ('PLAN_TABLE', 'TSH', 'ALL'));
PLAN_TABLE_OUTPUT
----------------------------------------------------------------------------------------------------
Hash value of plan: 2400300449
----------------------------------------------------------------------------------------------------
| ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time | Pstart. Pstop |
----------------------------------------------------------------------------------------------------
| 0 | DELETE STATEMENT. 596K | 12 M | 838 (9) | 00:00:12 |
| 1. REMOVE | DETAIL_UNKNOWN |
| 2. SIMPLE HASH PARTITION | 596K | 12 M | 838 (9) | 00:00:12 | 6. 6.
|* 3 | TABLE ACCESS FULL | DETAIL_UNKNOWN | 596K | 12 M | 838 (9) | 00:00:12 |
----------------------------------------------------------------------------------------------------
PLAN_TABLE_OUTPUT
----------------------------------------------------------------------------------------------------
Name of the query block / Alias object (identified by the operation identity card):
-------------------------------------------------------------
1 LED$ 1
3 LED$ 1 / U@DEL$1
Information of predicates (identified by the operation identity card):
---------------------------------------------------
3 - filter("U".") FLBATCHID '= 'PCAFRINTERMAR1105' AND 'U'." N_PER6 "= 201214)
PLAN_TABLE_OUTPUT
----------------------------------------------------------------------------------------------------
Projection of the column information (identified by the operation identity card):
-----------------------------------------------------------
2 - (cmp = 2, 3) "U". ROWID [ROWID, 10], "U". "N_PER6" [NO.22], 'U' "." " FLBATCHID ' [VARCHAR2, 20].
3 - « U ». ROWID [ROWID, 10], "U". "N_PER6" [NO.22], 'U' "." " FLBATCHID ' [VARCHAR2, 20].
27 selected lines.
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Need your suggestions on how the query / table can be tuned.Hi Anand,
I wanted to check why your tkprof Watch report two executions of the statement:
call count cpu elapsed disk query current rows ------- ------ -------- ---------- ---------- ---------- ---------- ---------- Execute 2 2315.71 2480.17 0 3351 624489 611765In fact, it there was only a single execution of the DELETE statement. The trace file begins with a call EXEC of any statement without call analysis
*** TRACE DUMP CONTINUED FROM FILE XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX_ora_241708.trc *** EXEC #1:c=20000,e=13996,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=0,tim=32472879711702 ===================== PARSING IN CURSOR #2 len=68 dep=0 uid=72 oct=42 lid=72 tim=32472883567994 hv=740818757 ad='0' ...TKProf aggregates this EXEC call with call EXEC of the DELETE statement because they have the same location of cursor (#1), he thinks it was the same cursor.
PARSING IN CURSOR #1 len=93 dep=0 uid=72 oct=7 lid=72 tim=32472889974030 hv=1242910589 ad='e5979d80' DELETE from detail_unknown where n_per6 = 201214 and FLBATCHID = 'PCAFRINTERMAR1105' END OF STMT PARSE #1:c=0,e=11462,p=0,cr=0,cu=0,mis=1,r=0,dep=0,og=1,tim=32472889974024 ... EXEC #1:c=2315710000,e=2480213492,p=0,cr=3691,cu=624489,mis=0,r=611765,dep=0,og=1,tim=32475370187626So, the question about two executions is closed - there was only a single run.
The performance - 2315,71 seconds of time processor is absolutely huge for such amount of work. It looks like a bug.
First, I propose to check the time without compression. If your environment allows this kind of testing try to decompress the partition and re - run on unpacking data DELETION.
10.2 find the name of the partitionselect partition_name from dba_tab_partitions where table_name = 'DETAIL_UNKNOWN' and partition_position = 6After that
alter table DETAIL_UNKNOWN modify partitionnocompress; alter table DETAIL_UNKNOWN move partition ; and run again the button DELETE.
What is the operating system on the server?
-
check for the delete operation
Hi all
I'm a deletion of a table. How can I check if the removal of deleted rows?
Thanks in advance
BNI'm guessing that you want to check SQL ROWCOUNT % immediately after the DELETE statement (if you are not in a PL/SQL block when you issue DELETE it, your API client probably has a different appeal for this information).
BEGIN DELETE FROM some_table WHERE some_column = some_value; IF( SQL%ROWCOUNT = 0 ) THEN dbms_output.put_line( 'No rows were deleted' ); ELSE dbms_output.put_line( 'We deleted some rows' ); END IF; END;Justin
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DEADLOCK DETECTED - DELETE statement - how/why he expects in SHARING mode?
Hello
I wonder if anyone can advise here. The environment is:
Microsoft Windows 2003 Server
Standard Oracle 10.2.0.4 Edition
We had a deadlock detected in our application on a customer site - I enclose the corresponding part of the trace file below. While we think we have found the reason for the deadlock (looks like it is due to a foreign key in cascade), I'm confused as the lock mode that is requested.
Here is the track information:
It seems to me like session * 481 * trying to do a deletion when the block is raised:Deadlock graph: ---------Blocker(s)-------- ---------Waiter(s)--------- Resource Name process session holds waits process session holds waits TX-00120012-00003b59 28 475 X 29 481 S TX-000a0029-0003508b 29 481 X 28 475 X session 475: DID 0001-001C-000F96B0 session 481: DID 0001-001D-00000079 session 481: DID 0001-001D-00000079 session 475: DID 0001-001C-000F96B0 Rows waited on: Session 481: no row Session 475: obj - rowid = 00014625 - AAAUYlAAIAAAAawAAo (dictionary objn - 83493, file - 8, block - 1712, slot - 40) Information on the OTHER waiting sessions: Session 481: pid=29 serial=18261 audsid=202192707 user: 51/info O/S info: user: SYSTEM, term: our_term, ospid: 5244:940, machine: our_machine program: our_exe.exe client info: GUI application name: app, hash value=3864155245 action name: our_action, hash value=3631189430 Current SQL Statement: DELETE FROM TABLE_1 T WHERE T.T_ID = :B1 End of information on OTHER waiting sessions. Current SQL statement for this session: UPDATE TABLE_1 T SET T.STATUS_ID = :B2 WHERE T.T_ID = :B1
and ask which mode (dynamique31) S .DELETE FROM TABLE_1 T WHERE T.T_ID = :B1
(also the 'no line' for lines didn't wait)---------Blocker(s)-------- ---------Waiter(s)--------- Resource Name process session holds waits process session holds waits TX-00120012-00003b59 28 475 X 29 481 S
I thought it would be in mode (e) X (clusive) (for the line being deleted). Actually Yes, I set up a test of fast and simple locking and mode (e) X (is) expected the final delete .Session 481: no row
So, am I misinterpreted the tracing information, or is the DELETE statement requesting the lock in mode S (Hare)? If this is the case, I'd appreciate a quick explanation of how/why it's...
Kind regards
ADOSI think we have almost the same reason to wait in S mode as in [single key application | http://books.google.pl/books?id=14OmJzfCfXMC&dq=oracle+wait+interface+practical+guide&q=unique+key+enforcement].
If two sessions want to insert the same key value, the other must wait, because the outcome depends on a commit / rollback of the first session. In the case of validation, session 2 must generate an error in case of cancellation, it must insert his record.In the test provided by ADOS, at session 1 there is an insert in session 2 - delete. The result of the delete operation depends, once again, commit or rollback in the first session. In the case of validation, it must remove, and cancellations, there is nothing to remove.
If the insert in session 1 has been replaced by the Update, there is no S lock but 'normal' eXclusive
Bartek
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