INSERT /*+ APPEND */
INTO sales_fact
SELECT *
FROM customer_sales_fact_staging
ORDER BY time_wh_id;
COMMIT;
[URL]
Suppose in the above case
SELECT *
FROM customer_sales_fact_staging
ORDER BY time_wh_id;
returns a huge number say more than 10 million or 50 million
will the commit work(one single transaction)
I joined the forum just today, i need some tips on deleting the millions of rows from a huge table having 25 millions of rows.
View 4 Replies View Relatedwhich is the fast way of inserting 60 millions of records from a view to a table.
method 1:
create table t_temp_table as select * from v_dump_data;
method 2:
through bulk collect
---Bulk_Collect With FORALL----------
DECLARE
TYPE srvc_tab IS TABLE OF t_temp_table%ROWTYPE;
l_srvc_tab srvc_tab := srvc_tab();
l_start_time NUMBER;
l_end_time NUMBER;
l_error_count NUMBER;
[code].....
I have a table which has plenty of rows. In production, I would estimate it to be from 30 millions to 300 millions. I need to update on column (flag) in all the rows (created before certain date).Now saying just:
UPDATE MyTable SET flag = 3 WHERE created < to_date('2010-10-08 23:59:59', 'YY-MM-DD HH24:MI:SS');
COMMIT;
Does not seem like a good idea - the commit-buffer would become too big.I will write a PL/SQL script for this. The question is, whether I should:
a) Update each row separately, and commit after every 10000 rows. ( WHERE RowId = [rowId] )
b) Update 10000 rows with set of dates ( WHERE rowId > [some_row_id] AND RowId < [some_row_id_2]
In the latter example the some_row_ids would naturally be fetched. The rowIds come from sequence. So which one would be more effective?I am not too familiar with PL/SQL or Oracle for that matter.
i have deleted 20 lak rows from a table which has 30 lak rows,
and i wanted to release the fragmented space, what is the procedure other than exp/imp or alter table move
and also the recommended way to do this prod env... (coalesce /alter move etc.. )
db version is 11.2
The following query take lot of time when exectued, even after I drop the indexes, is there a better way to write the following query?
DELETE from pwr_part
where ft_src_ref_id in (select ft_src_ref_id
from pwr_purge_ft);
--Table:pwr_part
--UIP10371 foreign key (FT_SRC_REF_ID, FT_DTL_SEQ)
[Code]...
Explain Plan:
Description Object owner Object name Cost Cardinality Bytes
SELECT STATEMENT, GOAL = ALL_ROWS 224993 5492829 395483688
HASH JOIN RIGHT SEMI 224993 5492829 395483688
INDEX FAST FULL SCAN PWR_OWNER PWR_PURGE_FT_PK 43102 23803770 142822620
PARTITION HASH ALL 60942 27156200 1792309200
TABLE ACCESS FULL PWR_OWNER PWR_PART 60942 27156200 1792309200
Im trying to replicate a set of rows multiple times to create large volume. I am trying by For Loop, but got confused how to pass the parameters in any cursor i declare.
View 8 Replies View RelatedI have a query which returns nearly 20k rows, as per the requiremnet we need to append all these rows in specific format and insert into single clob column.in the below procedure test_clob.textt is clob field.
CREATE OR REPLACE PROCEDURE pro_test
v_mas_seq NUMBER (9);
v_gov_total NUMBER (20, 2);
v_emp_total NUMBER (20, 2);
v_text_exp CLOB;
v_pageaccess VARCHAR2 (15);
v_dto NUMBER (7) := 4011486;
v_batchno NUMBER (20) :=
[code]....
I need to load 2 trillion data from an external table to Oracle Heap table. I am using Direct Path insert for that. how to commit after inserting n number of rows.
View 8 Replies View RelatedI have an insert statement like below.
insert into emp (select empno,ename,sal);
Here I need to exclude the rows having sal<0 from the SELECT query and insert those into some other table simultaneously.
Below are the data for rows that I want to insert into CUSTOMER_PRODUCT table from a stored procedure.
Instead of making round trips twice to insert these two rows, I looking for a way to pass in the data for both those rows and then insert them from within the stored procedure in one shot.
The stored procedure will be invoked by Java and .NET.
Sample Data for CUSTOMER_PRODUCT:
ROW 1:
CUSTOMER_ID : 1000
PRODUCT_TYPE : PROD123
IS_MEMERSHIP : Y
IS_EMAIL_SUBSCRIPTION: Y
ROW 2:
CUSTOMER_ID : 1001
PRODUCT_TYPE : PROD123
IS_MEMERSHIP : Y
IS_EMAIL_SUBSCRIPTION: Y
Question 1:
Should collection be used? (or) is there any other approach that could be utilized?
Question 2:
Are there any performance concerns in passing collection and iterating it to fetch value to insert into CUSTOMER_PRODUCT table?
I'm running Oracle 10g.
I have a flat file as source wherein I am getting values like
Comp_id, Comp_name, ISIN, column_name, column_value
The structure is like this may contain multiple records like Comp_id, Comp_name, ISIN will be same, but column_name will contain the column_name to which its corresponding column_value needs to be populated to.
E.g. of Feed File -
Comp_id, Comp_name, column_name, column_value
1,HSBC,branch_name,HSBC-DELHI
1,HSBC,branch_add,24-Lajpat Nagar
1,HSBC,branch_phone,2322322
2,HSBC,branch_name,HSBC-MUMBAI
2,HSBC,branch_add,24Andheri
2,HSBC,branch_phone,4445221
2,HSBC,branch_postalcode,400023
Target table structure
Comp_id, Comp_name, branch_name, branch_add, branch_phone, branch_postalcode
I need to insert the above data to a table by selecting data from above scenario.
shall we stop inserting data into a table before it inserting using Trigger?
View 3 Replies View RelatedI am trying to delete the one month data from the table , which contains the end customer sales data.The total data count in the table is 30 crores. And the data of one month is nearly 10 Crores.I am using oracle 10g , The date field to be used in the condition of delete is indexed.
best way to delete such huge data count.
I am having a requirement like below,
Scene 1:
If duplicate records found for SSN,BWE with SAME DATE_CREATED than take the record with HIGHEST DATE_MODIFIED.
Table Structure:
SSN BWE DATE_CREATE DATE_MODIFIED
123 01-JAN-2008 02-JAN-2009 03-JAN-2014
123 01-JAN-2008 02-JAN-2009 03-JAN-2013
Output needed:
SSN BWE DATE_CREATE DATE_MODIFIED
123 01-JAN-2008 02-JAN-2009 03-JAN-2014
Scene 2:
If duplicate records found for SSN,BWE with different DATE_CREATED than take the record with HIGHEST DATE_CREATED.
Table Structure:
SSN BWE DATE_CREATE DATE_MODIFIED
123 01-JAN-2008 02-JAN-2009 03-JAN-2014
123 01-JAN-2008 04-JAN-2009 03-JAN-2013
Output needed:
SSN BWE DATE_CREATE DATE_MODIFIED
123 01-JAN-2008 04-JAN-2009 03-JAN-2013
How to achieve this requirement. My source data has 25 million of records like this.
i have a problem to view tens of millions of data in oracle 11g i have table Book_Issue that have tens of millions of data but when i execute query to see all the data select * from Book_Issue
it only view 5.000 data
what query should i execute to view million data in oracle 11g
There is a table in Database with millions of records and a query --- Select rowid, ANI, DNIS, message from tbl_sms_talkies where rownum<=:"SYS_B_0" ---- using the high CPU and also this query having high number of executions.
View 10 Replies View Relatedhow to import millions of data from excel to oracle?
View 8 Replies View RelatedPerhaps this is a common request : I have 2 tables:
Table A
-------
ID Value
1 a
2 b
3 c
Table B
-------
ID AnotherValue
1 x
2 y
I am hoping to append a column from Table B to Table A based on a simple sql join (e.g:
Table A
ID Value AnotherValue
1 a x
2 b y
3 c (null)
)
I would rather stay away from the standard update statement since it takes far to long and I'd prefer not to use create table as I don't want to duplicate any data...is this possible to do ? (e.g: just insert the columns into this table ?) - or if it's possible the performance overhead just wouldn't make it worth it ?
Declare
Cursor c1...;
Cursor c2...;
begin
open c1 ;
fecth c1 bulk collect into v1;
close c1;
[Code]...
Is there any way by which if condition gets true then v1 gets appended rather than being overwritten?
declare
type lst_deptno is table of dept.deptno%type index by binary_integer;
type lst_deptno_emp is table of emp.deptno%type index by binary_integer;
v_deptno lst_deptno;
v_deptno_emp lst_deptno_emp;
cursor c1 is select deptno from dept;
[Code]...
if the same name repeating it should to append with _1 and _2 until same name reached.
select 'fname' name from dual
union all
select 'lname' name from dual
union all
select 'email' name from dual
union all
select 'fname' name from dual
union all
select 'fname' name from dualmy output should be like below...
fname
lname
email
fname_1
fname_2
I am just looking to my control file that I have. I have managed to successfully get my control file to load data into the required tables but just for my learning I was trying to amend the when clause with an and condition but keep getting an error.
My code:
OPTIONS (DIRECT=TRUE, ERRORS=0, SKIP=1)
load data
infile 'A:/My Files/Feeds/20130211/data_summary_1_20131214.txt' "STR '
'"
APPEND
into table I_DATA_1
WHEN (RID <> 'RID')
fields terminated by "~|~" optionally enclosed by '"'
TRAILING NULLCOLS
(
RID,
S_TIMESTAMP timestamp 'DD-MON-RR HH:MI:SS.FF3 PM'
)
the above code works perfectly but if i change the following line:
WHEN (RID <> 'RID' AND 'S_TIMESTAMP' IS NOT NULL)than this gives me an error.
I have a requirement when I need to append and show the contents of a CLOB (rich text) column into the Open office report.
The use case is as below.
User(s) can enter the details into a CLOB column.
This data entered by each user need to be concatenated onto another CLOB column which will hold all the history of changes. Mainly i wanted to perform a concatenation of these two columns.
|
| User Entered | Stored |
| Data Stored in Clob Column 1| Data Stored in Clob Column 2 |
| v_clob_1 | v_clob_target |
-------------------------------------------------------------------------------
|"Text 1" and a image |"Text 1" and a image |
-------------------------------------------------------------------------------
Any method to achieve this case. I had tried the following method to achieve this. But no success.
v_merge clob;
v_clob_target clob;
v_clob_1 clob;
1)
DBMS_LOB.APPEND(v_merge, v_clob_target);
DBMS_LOB.APPEND(v_merge, v_clob_1);
2)
DBMS_LOB.APPEND(v_clob_target, v_clob_1);
3)
v_merge:= v_clob_target || ''|| v_clob_1;
v_clob_target := v_merge;
Have got ddl of index,but it is not append ';' end of each index,how to append ';' by auto.
Select
Dbms_Metadata.Get_Dependent_Ddl(Object_Type => 'INDEX',
Base_Object_Name => 'TB_HXL_USER')
From Dual
result:
[Code].....
Version: 11.2.0.3
Platform : RHEL 5.8 (But I am looking for platform independant solution)
I want to append the timestamp to spooled log file name in SQL*Plus.The spooled log filename should look like
WMS_APP_23-March-2013.logI tried the following 3 methods found in the google. But none of them worked !
I tried this
col sysdt noprint new_value sysdt_var
SELECT TO_CHAR(SYSDATE, 'yyyymmdd_hh24miss') sysdt FROM DUAL;
spool run_filename_&sysdt_var.Logas suggested in
[URL]
and this
spool filename with timestamp
col sysdt noprint new_value sysdt
SELECT TO_CHAR(SYSDATE, 'yyyymmdd_hh24miss') sysdt FROM DUAL;
spool run_filename_&sysdt..Logas suggested in
[URL]
and this
column tm new_value file_time noprint
select to_char(sysdate, 'YYYYMMDD') tm from dual ;
prompt &file_time
spool logfile_id&file_time..logas suggested in
Creating a spool file with date/time appended to file name
None of the above worked in RHEL or MS DOS.
I've got SQL code generated by an HP tool to make an update of itself. This code is not modifiable because was execute 'in background' from the tool updater.
The macro operations made by the updater (through sql code) are:
--create a copy of actual table and rename with '_old' suffix
--create new table, with indexes and constraints
--insert data into new table from old tables
Now, only in one table, when the data were inserted, an ORA-00001: unique constraint (ASSET_SVIL.CFG_CFGSECTIONCFGE) violated, appear.
To insert data is used an insert/select statement with an HINT /* APPEND */. We verify all the data existing in the old table (that is the data to 'migrate') but there aren't duplicate record!
BUT IF WE REMOVE THE HINT /* APPEND */, THE INSERT/SELECT STATEMENT WORKS WITHOUT GENERATE ERRORS!!
I have following table: tab1
id configured_size current_size percentage
1 500 100 20
2 300 100 33
... ... ...
When I launch select * from tab1 I get :
id configured_size current_size percentage
1 500 100 20
2 300 100 33
... ... ...
My question is is there any way how to edit the abovementioned select to get something like :
id configured_size current_size percentage
java_eml 500 100 20%
java_hdl 300 100 33%
... ... ...
I want to append two things:
sign of % in row percentage
when id =1 then in output have java_eml
when id =2 then in output have java_hdl
The problem is I cant update the table (not sufficient rights) so is there any way how to adapt that output?
I want to know which is the most efficient insert method among the followiing
1)using the hint append
or
2)bulk collect. Preferably I'd like to know which method of inserting for say 2-5 millions rows is the best.
Am extracting data from a database and putting them in 2 different utl_files. In the end i want to append or merge the 2 utl_files to one file.
View 10 Replies View RelatedIm having mail content column of type long Raw in a table.i just want concat or append a value in that column when i tried it shows error "illegal use of long type".how to append value to it. value will be string type
View 15 Replies View Related