PL/SQL :: How To Update A Table That Has Around 1 Million Records

Sep 21, 2012

Lets take the basic emp table for our Referenece and lets assume that it contains around 60000 Records and all the deptno in that table are Initially 10. Please provide an update statement which would update deptno column of EMP table((based on) order by EMPNO) in for every 120 records incrementing by 1.(DeptNo to be incremented by 1,like 10 ,11 , 12 etc).

First 120 Records deptno should be 10,
Next 120 Records deptno should be 11, and so on.
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For Last 120 records deptno should be updated with 500.

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SQL & PL/SQL :: Update 10 Million Records Table With Certain Condition?

Sep 16, 2013

what are the type of ways to update the 10 million records table with certain condition?

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Best Way To Update 8 Out Of 10 Million Records?

Jun 21, 2013

I want to update a table 8 million records of a table which has 10 millions records, what could be the best strategy if the table has a BLOB column with 600GB worth of data. BLOB itself is 550GB. I am not updating the BLOB column. Usually with non-BLOB data i have tried doing "CREATE TABLE new_table as select <do the update "here"> from old_table;" method .

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PL/SQL :: How To Insert 3 Million Records From One Table To Another

Aug 13, 2013

I want to know how we can insert more than 3 million records from one table to another table. Can we use Bulk collect and forall to insert the all data.Can we use create table tableB as select * from tableA; From the above which is one is performance wise good.

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PL/SQL :: Selecting Records From 125 Million Record Table To Insert Into Smaller Table?

Jul 17, 2013

Oracle 11gI have a large table of 125 million records - t3_universe. This table never gets updated or altered once loaded, but holds data that we receive from a lead company. I need to select records from this large table that fit certain demographic criteria and insert those into a smaller table - T3_Leads - that will be updated with regard to when the lead is mailed and for other relevant information. select records from this 125 million record table to insert into the smaller table.

I have tried a variety of things - views, materialized views, direct insert into smaller table...I think I am probably missing other approaches. My current attempt has been to create a View using the query that selects the records as shown below. Then use a second query that inserts into T3_Leads from this View V_Market. This is very slow. Can I just use an Insert Into T3_Leads with this query - it did not seem to work with the WITH clause? My Index on the large table is t3_universe_composite and includes zip_code, address_key, household_key.

CREATE VIEW V_Market asWITH got_pairs AS ( SELECT /*+ INDEX_FFS(t3_universe t3_universe_composite) */ l.zip_code, l.zip_plus_4, l.p1_givenname, l.surname, l.address, l.city, l.state, l.household_key, l.hh_type as l_hh_type, l.address_key, l.narrowband_income, l.p1_ms, l.p1_gender, l.p1_exact_age, l.p1_personkey, e.hh_type as filler_data, 1.p1_seq_no, l.p2_seq_no , ROW_NUMBER () OVER ( PARTITION BY l.address_key ORDER BY l.hh_verification_date DESC ) AS r_num FROM t3_universe e JOIN t3_universe l ON l.address_key = e.address_key AND l.zip_code = e.zip_code AND l.p1_gender != e.p1_gender

[code]....

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Querying A Table With 129 Million Records - Performance Is Slow?

Oct 9, 2013

I have table with 129 million records.

If I just to select count(*) on the table its taking more than a minute in Sql Developer.

The table structure is as below, Primary key is a sequence and then 3 foriegn keys and one non-unique index on the date column.

<Table_Name>
column1 NOT NULL NUMBER ( Primary Key)
column2 NOT NULL NUMBER ( FK1)

[Code].....

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SQL & PL/SQL :: Update Column In A Table Which Has 3 Columns Of 16 Million Rows?

Apr 25, 2012

trying to update a column in a table which has 3 columns of 16million rows from column in another table which has 1million rows, there is no relationship between the 2 tables.

Table A has 3 columns of 16million rows, the first two columns have 16million ID numbers, the 3rd colunm is currently NULL.

Table B has 1million Numbers, i need to somehow update column 3 in table A using the numbers in table B, it doesnt how many times each of the 1 million numbers are used but i dont want it to just update every row to the same value.

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SQL & PL/SQL :: Inserting 300 Million Records Into Oracle Table Using Database Links?

Dec 19, 2011

I would like to know if we can insert 300 million records into an oracle table using a database link. The target table is inproduction and the source table is in development on different servers.The target table will be empty and have its indexes disabled before the insert. if this can be accomplished in less than 1 hour.

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Performance Tuning :: Update Million Rows In One Table With Values From Another Tables?

Feb 15, 2011

I am trying to update a million rows in one table with the values from another tables.

Table being updated CI_ADJ_CHAR column CHAR_VAL_FK1
Table from which values will be used CK_ADJ columns (cx_id, ci_id)

The CI_ADJ_CHAR.CHAR_VAL_FK1 values match CK_ADJ.CX_ID and should be updated with the value CK_ADJ.CI_ID.

The CK_ADJ table has 1.3 million rows and both the columns have indexes defined. Table definitiuon mentioned below

The CI_ADJ_CHAR table has 14 million rows and will update 1 million rows and has an index on the ADJ_ID column but not on the CHAR_VAL_FK1 column.

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SQL & PL/SQL :: Oracle 10g - Update Records In Target Table Based On Records Coming In From Source

Jun 1, 2010

I am trying to update records in the target table based on the records coming in from source. For instance, if the incoming record is present in the target table I would update them in the target else I would simply insert. I have over one million records in my source while my target has 46 million records. The target table is partitioned based on calendar key. I implement this whole logic using Informatica. Looking at the informatica session log I find that the informatica code is perfectly fine but its in the update part it takes long time (more than 5 days to update one million records). find the TARGET TABLE query and the UPDATE query as below.

TARGET TABLE:
CREATE TABLE OPERATIONS.DENIAL_REGRET_FACT
(
CALENDAR_KEY INTEGER NOT NULL,
DAY_TIME_KEY INTEGER NOT NULL,
SITE_KEY NUMBER NOT NULL,
RESERVATION_AGENT_KEY INTEGER NOT NULL,
LOSS_CODE VARCHAR2(30) NOT NULL,
PROP_ID VARCHAR2(5) NOT NULL,
[code].....

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Updating 15 Million Records

Jul 12, 2012

i'm using the below query to update a VOTER table with over 15million records but it's taking ages to finish. i am using 11gr2 on linux

the query:

MERGE INTO voter dst
USING (
SELECT voterid,
pollingstation || CASE
WHEN ROW_NUMBER () OVER ( PARTITION BY pollingstation
[code]........

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SQL & PL/SQL :: Utl_match Comparing Million Records?

Nov 22, 2010

the problem is: 2 tables - one with 2 million records, and the other with 8000 records.

i need to compare for each record in a table if there's a similar string on the other table.

i've created a procedure that does the following:

opens the first cursor (select col1,col2,col3,col4... from table 1)
loop
opens second cursor (select col1 from table 2)
loop
if utl_match(col1, table2.col1) > 80 then
insert col1,col2,col3,col4... into tableX
end if
close second cursor
close first cursor

the thing is that this procedure takes forever to end...about 8 days.

is it because im using the utl_match function? is there a way to speed this up?

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Client Tools :: Insert 50 Million Records At A Time?

Jan 4, 2011

How can i insert 50 million records at a time

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SQL & PL/SQL :: Performance Tuning For Oracle Tables With Million Of Records

Mar 11, 2013

Ways for improving the Table performance which holds million of records for oracle. Currently we have partitioning and indexing but it doesn't seem to work.

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Loop Through Records In A Table And Update?

Feb 2, 2012

I'm working with Oracle 10g.

I have a table like this;

ID Amount Date
123 5000 Oct-07-2011
123 null Oct-09-2011
124 7000 Oct-14-2011
124 null Oct-17-2011
124 null Oct-24-2011

What I'm trying to do here is loop thruogh the records and update the amount that's null with the previous amount with the same ID.

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SQL & PL/SQL :: Update Based On Other Table Records?

Nov 4, 2009

CREATE TABLE "SCOTT"."SEATALLOTMENT"
("YEAR" NUMBER(4,0),
"COLLEGECODE" CHAR(4 BYTE),
"COURSECODE" CHAR(3 BYTE),

[Code].....

Now i want to UPDATE reducing the AVAILABLE column by 1 in COURSESEATS table based on common columns collegecode,coursecode for a ROW inserted into SEATALLOTMENT table ,i am confused to what approach i have to follow whether its a procedure or a trigger

CASE:

Here in this case as i insert a row with krcl,cse as college code and course code respectively into seatallotment table the available column in courseseat table for the respective row with mentioned common column must become 59 from 60

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SQL & PL/SQL :: Update More Than 1million Records In Table?

Jul 29, 2013

I need to update more than 1million records in a table. I am using Oracle Warehouse Builder to do this Job. it is taking more than 3 hours still running. I don't have any Indexes on this table.

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SQL & PL/SQL :: How To Update Some (old) Records In One Column Of Table

May 26, 2011

i have a table in my PD database which have more than 30,000 records .some records in a column say p_code is not tagged with code like '9876543'while other records are tagged in this column with code such as '19022345678'.

Now i want to update these records with tagging 1902 with each one .

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Update 230 Records In Table Returning Error

Nov 20, 2009

want to update 230 records in ins_spr table but its returning error..

Sql statement in blue color returning 230 records.

------------------------------------------------
update ins_spr set
SPR_EXCC = 'NORSk'
where spr_code = (select distinct spr_code from ins_spr where spr_levc = 'N' and spr_facc = 'ROS' and (sts_code = 'AP' or sts_code = 'LS') and spr_stuc in (select distinct a.sqe_stuc from srs_sqe a where a.SQE_EQEC = 'NP3M' and a.SQE_SQSC = 'BE' and a.sqe_stuc in ( select distinct b.sqe_stuc from srs_sqe b where a.sqe_stuc=b.sqe_stuc and SQE_EQEC = 'NP3S' and SQE_SQSC = 'BE')))

OR

update ins_spr set
SPR_EXCC = 'NORSK'
where spr_code = (select spr_code from ins_spr where spr_levc = 'N' and spr_facc = 'ROS' and (sts_code = 'AP' or sts_code = 'LS')
and exists (select sqe_stuc from srs_sqe a where sqe_stuc = substr(spr_code,1,8) and SQE_EQEC = 'NP3M' and SQE_SQSC = 'BE'
and exists ( select sqe_stuc from srs_sqe b where a.sqe_stuc=b.sqe_stuc and SQE_EQEC = 'NP3S' and SQE_SQSC = 'BE')))

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SQL & PL/SQL :: Insert Or Update Records Into Target Table

Dec 21, 2012

I am trying to insert rec into target table if those rec are not existing and trying to update those rec if they already exists from three source tables.I had seen in posts that merge cannot be used with cursor.

SQL> create or replace
2 PACKAGE sis_l_cpl_sis_reb_pgm_hist_pkg
3 IS
4 /********************************************************************
******************
5 PACKAGE: sis_load_cpl_sis_reb_pgm_hist
6 PURPOSE: Load CMPLY_SIS_REB_PGM_HIST with data from cmply_sis_p
h_dtl,cmply_sis_sls_dtl,
7 cmply_sis_excl_dtl(intial load)
8 *********************************************************************
******************/
[code].......

Package created.

SQL> create or replace
2 PACKAGE BODY
sis_l_cpl_sis_reb_pgm_hist_pkg
3 IS
4 /**********************************************************************
******************
5 PACKAGE: sis_l_cpl_sis_reb_pgm_hist_pkg
6 PURPOSE: Load CMPLY_SIS_REB_PGM_HIST with data from cmply_sis_pur
h_dtl,cmply_sis_sls_dtl,
7 cmply_sis_excl_dtl(intial load)
[code].......

Warning: Package Body created with compilation errors.

SQL> sho err
Errors for PACKAGE BODY SIS_L_CPL_SIS_REB_PGM_HIST_PKG:

LINE/COL ERROR
-------- -----------------------------------------------------------------
67/7 PL/SQL: SQL Statement ignored
75/19 PL/SQL: ORA-00926: missing VALUES keyword

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PL/SQL :: Update Duplicate Records In Table With Sequence Value

Mar 25, 2013

My table have duplicate records. I want to impose a primary key on that table. For that I have to replace duplicate values of a column with next value of a sequence.

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SQL & PL/SQL :: Dynamic Update Of Cursor Records When Table Gets Updated Immediately

Apr 16, 2010

I am having a table with 4 columns as mentioned below

For a particular prod the value greater less than 5 should be rounded to 5 and value greater than 5 should be rounded to 10. And the rounded quantity should be adjusted with in a product starting with order by of rank with in a prod else leave it

Table1

Col1prodvalue1rank
1A21
2A62
3A53
4B61
5B32
6B73
7C41
8C22
9C13
10C74

Output

Col1prodvalue1rank
1A51
2A52
3A33
4B101
5B02
6B63
7C51
8C52
9C03
10C44

I have taken all the records in to a cursor. Once after rounding the request of 1st rank and adjusting the values of next rank is done. Trying to round the value for 2nd rank as done for 1st rank. Its not taking the recently updated value(i,e adjusted value in rounding of 1st rank).

This is because of using a cursor having a value which is of old value. Is there any way to handle such scenario's where cursor records gets dynamically updated when a table record is updated.

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SQL & PL/SQL :: Load 10 Million Rows In Table From Another Table Based On Multiple Joins

Sep 24, 2010

We have to load 10 million rows in a table from another table based on the multiple joins. How much tablespace size we allocate to the table and for performance point of view how much should be the SGA size.

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Performance Tuning :: Converted Non-partitioned Table (1 Million Data) Into Range-partition

Mar 28, 2013

As per Article mentioned in Oracle Base,I have converted non-partitioned table (1 million data) into range-partition table,but,I don't see performance improvement in explain .

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SQL & PL/SQL :: How To Update Multiple Records

May 6, 2010

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Forms :: Insert And Update Directly Into Table From Pre Update Trigger Of Block?

May 14, 2010

I have a base table (Table A) block with multiple records displayed. I need to track audits to this underlying table in the following way:

If user updates a field in the block I want the pre-changed record's audit fields to be set and I need to create a copy of the record with the changed values. Basically any changes will result in the record being logically deleted, and a copy record created with the newly changed values.

Tried to implement in the block's pre-update trigger which will call a package to directly update Table A then Insert into Table A, then requery the block. Is there a clean and efficient way to do this?

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SQL & PL/SQL :: Query To Update Duplicate Records?

Sep 20, 2011

The requirement is I have a table (TAB1), wherein I have 3 columns, ID, LID and STATUS.

The value in ID column = ID_SEQ.NEXTVAL,and LID will be either 0 or 1 and the possible values for STATUS are 'ED','CP', NULL. The ID column is not suppose to have duplicate values, but there is no check on the table for the same.

Someone has updated the existing data and ID column is containing duplicate values. Wherever LID = 0 and STATUS = NULL and if only if ID is duplicated then the ID_SEQ.NEXTVAL has to be assigned to ID field, so that there are no more duplicate values.

CREATE TABLE tab1 (id NUMBER , lid NUMBER, status VARCHAR2(10));

Existing Data
------------------
INSERT INTO tab1 VALUES (1,0, 'ED');
INSERT INTO tab1 VALUES (1,0, 'CP');
INSERT INTO tab1 VALUES (1,0, NULL);
INSERT INTO tab1 VALUES (1,0, NULL);
INSERT INTO tab1 VALUES (1,0, NULL);
INSERT INTO tab1 VALUES (1,0, NULL);

[code]....

get the result using a single update statement.

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SQL & PL/SQL :: Create Trigger To Update Table B After Update On Table A

Jul 21, 2011

I have table test1(id,name) and table test2(id,,name)

Now when I update name column of a row on test1 I want the same value to be updated for the same id in test2.

So I wrote this trigger but its not working

create trigger test_trigger after update on test1 for each row
begin
update test2 set name=new.name where test2.id=id
end
/

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SQL & PL/SQL :: Update Column With Total Number Of Records

Apr 3, 2012

Table : Customer

Cust_idNameid
227ABC1
227ABC2
227ABC3
228XYZ1
228XYZ2
228XYZ3
228XYZ4

In one oracle table (Customer) we have multiple cust_id based on that, we want to populate id column as cust_id record count.

I have id column right now null and want result same as above.

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Feb 27, 2013

I want to update records which returns more than 1 row using store procedure. i tried with ref_cursor but failed to update,

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