How To Rebuild Huge Indexes Upto 30gb In Size

Sep 7, 2011

i am having some indexes upto size of 40gb, i need to rebuild them having only 15 temp tablespace and without downtime

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Check That Indexes Need Rebuild?

Jul 31, 2013

How can i check that indexes need rebuild?

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SQL & PL/SQL :: Procedure To Rebuild Partitioned Indexes

Oct 3, 2012

I have a task to create a procedure that disables (particular) partitioned indexes and REBUILD after ETL load.

Developers wants 3 parameters for the procedure:

1) TABLE_OWNER2) TABLE_NAME3) TRANSACTION_DATE = 13-JUN-12

And here is what I have done. I have created a procedure that takes 3 input parameters, please see the attached script:

1) TABLE_OWNER 2) TABLE_NAME 3) PARTITION_NAME - requires to query the particular partition to get the partition name

a situation where they will input dates as the partition was on a DATE column, now my challenge is how to incorporate this into the procedure to accept DATE as an input which will require one to query the particular table to get dates.I thought of using (HIGH_VALUE - 1) to get the dates from ALL_IND_PARTITIONS.

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Server Administration :: Indexes To Be Rebuild?

Jan 30, 2010

How to find indexes which are eligible to rebuild in the database environment? Is there any query to find it?

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SQL & PL/SQL :: Rebuild All Indexes For The Tables In Control Table?

Mar 6, 2013

I have one control table as below.I want to rebuild all indexes for the tables in control table.

The control table is having the following data.

SEQ_IDTABLENAME SCHEMA_NAME
1GEDIS_ORDER_FORM_STATES ALL
2GEDIS_NOTES ALL
3GEDIS_CARD_TYPE_AUDIT APRT
4FAX_HEADER OMS

In the control_table schema_name "ALL" means this is for 30 schemas(The table is existed in 30 schemas).Except for schema_name "ALL" ,the table is existed in the particular schema(The table is existed in the only one schema).

I tried the following code it is executing for all 30 schemas(ALL).But it is not executing for specific schemas.

CREATE OR REPLACE PROCEDURE Rebuilding_index
IS
l_sql VARCHAR2(4000);
CURSOR cur_tab_schema
IS
SELECT tablename,schema_name
FROM control_table3;

[code]....

This contains the 30 schema names.

SELECT owner_name FROM global_bu_mapping;

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Backup & Recovery :: Database Size Is 30GB Is It Recommended For RMAN Backup

May 22, 2012

database size is 30GB is it recommended for RMAN backup

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Server Administration :: Index Rebuild Grows Database Size

Oct 29, 2010

Our database size is 100GB and i removed few records from a table and rebuild the index.The size of Index reduced considerably after Index rebuild but now i see our database size increased to 115GB.I know online rebuild creates second index which is also removed after the build is finished then why the increase in database size?Is there a way so it shows up more space ?

select sum(bytes) from dba_segments where owner='abc' and segment_name='abc_index_1';
8GB

ALTER INDEX abc_index_1 REBUILD ONLINE ;

select sum(bytes) from dba_segments where owner='abc' and segment_name='abc_index_1';
2GB

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Server Administration :: User Dump / Trace Files With Huge Size In MBs

Mar 22, 2012

I am facing problem in user_dump_dest directory...I have noticed that there are a lot of trace files with huge size in MBs.I clean it and after 4 days there are 40G of size..

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Size Of Tables And Corresponding Indexes

Dec 13, 2012

Does size (number of rows) of table and corresponding indexes have influence on INSERT operations (bigger table - slower insert)?

I supposed that if select returns the same rows in small and big table, there will be no difference in performance?

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Performance Tuning :: Difference Between Index Rebuild And Index Rebuild Online?

Jan 10, 2011

What is the difference between index rebuild and index rebuild online.

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SQL & PL/SQL :: Command To Take Previous Day Upto Midnight

Mar 19, 2013

What command can be used to take the previous day upto mid night?

For example

TO_DATE('18-MAR-13 23:59:59', 'dd-mon-yy hh24:mi:ss')

Instead of me entering the date any way to take the previous day till mid-night.

I dont think sysdate-1 will work for me because if I enter sysdate-1 it will take from now -1 that means 18-mar-13 15.45.45 but I want till the previous date until mid-night.

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Server Administration :: Split 30GB DBF File Into 6 - 5GB Files?

Dec 27, 2011

We have a tablespace with one 30GB datafile. We would like to add 5 more datafiles then re-size the original to make six 5GB datafiles.

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Create As Many As 100 Database With Upto 100 Users (max) For Each Database As Client

Aug 25, 2010

I have CPU based Oracle server license. In this case as per license policies of Oracle I can have unlimited database with unlimited users connecting it.

I need to create as many as 100 database with upto 100 users (max) for each database as client. What is the recommended hardware for this server? CPU/ RAM/Harddisk, recommended chipset on the motherboard (in case of database storage capacity required is not high typically - 20 GB is OK per database - average), redundancy is critical, also Oracle database vault is going to be installed; as security is of prime importance between users of different database. Which specific server models from specific vendors like IBM/ Dell/ HP are good ones for this purpose?

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Convert Indexes Of Non-partitioned Table To Hash Partitioned Indexes?

Sep 10, 2012

RDBMS - 11.1.0.7, I it possible to convert indexes of a non-partitioned table to hash partitioned indexes by retaining table as non-partitioned?

If yes, is this what it is Creating a Hash-Partitioned Global Index - can be created for partitioned and non-partitioned tables?

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Server Utilities :: Estimate Size Of FlatFile Based On Table Size?

May 8, 2013

We are planning to export the table data to a file pipedelimited. How do i estimate the size of the FlatFile based on the table size? or avg rowlength

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Server Administration :: How To Reduce Size Of TEMP DBF File Size

Apr 13, 2011

I am using oracle 8.1.5 database and my temp01.dbf file size is increased upto 19.8 GB now i want reduce its size .

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SQL & PL/SQL :: Rebuild The Table Structure?

Feb 7, 2013

--this for txn details
CREATE TABLE txn_det(
txnid NUMBER PRIMARY KEY,
amount NUMBER,
status varchar2(50),
cust_id NUMBER);
----this for customer details
CREATE TABLE cust_det(
cust_id NUMBER PRIMARY KEY,
cust_name VARCHAR2(50),
cust_acc number(15));

--data to insert for customer table
INSERT INTO cust_det VALUES(101,'Miller','12345');

INSERT INTO cust_det VALUES(201,'Scott','45678');
----data to insert for txn table
INSERT INTO txn_det VALUES('tx0045',123.00,'success',101);

INSERT INTO txn_det VALUES('tx0046',4512.50,'success',101);

insert into txn_det values('tx0049',78.12,'success',101);

INSERT INTO txn_det VALUES('tx0055',123.12,'success',201);

Now THE problem IS cust_det TABLE's cust_id coulmn may contain duplicate.So I thought OF adding THE txn_id COLUMN TO THE cust_det table but I know that encourgaes redundancy.

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SQL & PL/SQL :: Analyze And Rebuild The Index?

Apr 11, 2011

I need to Analyze and Rebuild the indexes with a script at once for a schema.

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Oracle Sys Index Rebuild?

May 28, 2012

Below Table Index are rebuild,This table are relation with sys user or not?after rebuild index, getting error in alert log file

ORA-00600: internal error code, arguments: [psdnop-1], [1410], [], [], [], [], [], [], [], [], [], []
ORA-01410: invalid ROWID

when trying to select * from dba_network_acls getting error massage Rowid invalid

ALTER INDEX CTXSYS.SYS_C003684 REBUILD;
ALTER INDEX CTXSYS.SYS_C003683 REBUILD;
ALTER INDEX CTXSYS.SYS_C003682 REBUILD;
ALTER INDEX CTXSYS.SYS_C003681 REBUILD;

[code]...

It is possible to recreate this index again.......

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SQL & PL/SQL :: Rebuild And Move Not Working As Expected

Nov 11, 2011

I ran below query and got the indexes to be rebuild:

SELECT (CASE
WHEN b.partitioned = 'NO'
THEN 'alter index '
|| b.owner
|| '.'
|| b.index_name
|| ' rebuild online; '
--|| b.initial_extent
[code]....

Why the fragmented size is not reducing.

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SQL & PL/SQL :: Bitmap Index Rebuild - Getting ORA-00054

Nov 15, 2012

oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production
PL/SQL Release 11.1.0.6.0 - Production
"CORE 11.1.0.6.0 Production"

I have a procedure that is run weekly to load the data, for which it calls another procedure. This weekly procedure, disables the index, load the data, and rebuilds the index. During rebuilding of index, its giving ORA-00054: resource busy and acquire with NOWAIT error. I dont have privileges to look for session id, and kill the session. How to avoid this error.

create or replace
PROCEDURE "WCL_WEEKLY_UPLOAD" (
p_event_id IN NUMBER
)
[code]....

As you can see, after the procedure wc_upload, COMMIT is issued, and then the rebuilding of the index is starting. So dont know what is causing the table to lock.

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Index Rebuild Partition Not Completing?

Nov 20, 2012

Index with following PARTITIONS. Index rebuild is extremely slow. Below 2 Alter index ..rebuild... took 10 hours to complete. Because of this queries which based on this index are really slow.

SYS@DB AS SYSDBA> select partition_name,tablespace_name,bytes/1024 KB from dba_segments where segment_name='KSTN';
PARTITION_NAME    TABLESPACE_NAME           KB
------------------------------ ------------------------------ ----------
REB_IDX_1            TS_REB                     64
REB_IDX_2            TS_REB                     64
REB_IDX_3            INDEX                        64
REB_IDX_4            TS_REB                     64

[code]....

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How To Rebuild Local Partitioned Index

Jan 29, 2013

2day i was dropping few unwanted index from the data base, By mistake i removed the local partitioned index , So i want to recreate that index.i create the index, will the partitioned index updates when we add partitioned to the tables.

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Oracle Sys Index Rebuild After Getting Invalid Error Ora-01410

May 26, 2012

Oracle 11.1 version

Oracle sys Index rebuild list
CTXSYS
EXFSYS
FLOWS_030000
FLOWS_FILES
MDSYS
OLAPSYS
ORDSYS
OWBSYS
SI_INFORMTN_SCHEMA
TSMSYS
WKSYS
MDSYS

After rebuild above index im getting error while inserting,update,delete table rows

Error like 'INVALID ROWID'

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Performance Tuning :: Create Versus Rebuild Index

Jan 27, 2011

I was comparing cost of rebuild vs create index...I carried out the following test

SQL> create table t4 as select * from t1;

Table created.

SQL> create table t5 as select * from t1 where 1=2;

Table created.

SQL> create index i5 on t5(id);

Index created. SQL> select bytes,extents,blocks from user_segments where segment_name='I5';

BYTES EXTENTS BLOCKS
---------- ---------- ----------
65536 1 8

SQL> alter index i5 unusable;

Index altered.

SQL> alter table t5 nologging;

Table altered.

SQL> Alter session set skip_unusable_indexes=True;

Session altered.

SQL> insert /*+ append */ into t5 select * from t1;

563904 rows created.

SQL> commit;

Commit complete.

Now I compared the cost (elapsed time, logical I/O) of the operations

create index i4 on t4(id);
Vs
alter index i5 rebuild online;

Following is the related trace of above 2 steps

create index i4 on t4(id)

call count cpu elapsed disk query current rows
------- ------ -------- ---------- ---------- ---------- ---------- ----------
Parse 1 0.00 0.00 0 1 0 0
Execute 1 1.17 3.38 9497 7869 335 0
Fetch 0 0.00 0.00 0 0 0 0
------- ------ -------- ---------- ---------- ---------- ---------- ----------
total 2 1.17 3.38 9497 7870 335 0

Misses in library cache during parse: 1
Optimizer goal: CHOOSE
Parsing user id: 5
[code]....

So which option we shall pick in such cases? {Of course I haven't set 'nologging' for the indices but it is same for both indices we are comparing}

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Performance Tuning :: Table Rebuild Should Be Done After Removing Most Of Its Data?

Oct 23, 2012

We are on Oracle 10.2.0.4 on Solaris 10. There is a table in my production db that has 872944 number of rows. Most of its data is now unnecessary, we need to retain, based on a date column in the table just last one month's data and delete rest of the data. So after that the table will have just 3000 rows.

However as the table was huge earlier(872k rows prior to delete) , does the delete of data release its oracle blocks and does the size of the table reduce? If not, will it rebuild the table online (online redefinition) so that the query that does a full scan on this table goes faster?

I checked using an example table that just delete of data does not remove the oracle blocks - they remain in the user_tables for that table and cost of full table scan remains same. We have a query that does the full table scan so I am thinking that after this delete I should do an online table re-definition , is that the right decision?

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Server Administration :: Identify Condition To Rebuild Index

May 27, 2012

In which condition it is required to rebuild the index and how can identified it?

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Server Administration :: Index And Table Rebuild Method

Jan 17, 2012

The best way to rebuild index and table and also give the reason as why we need to use this method?

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Performance Tuning :: Oracle Coalesce Vs Index Rebuild?

Dec 30, 2010

We have large tables 60-70 GB having 120 million records. We have to perform index rebuild frequently which takes significant time to complete and effects database performance too. how we can use index Coalesce? what are its benefits, coalesce results in performance gain?

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Server Administration :: Recover Space After Index Rebuild?

Apr 26, 2011

We have separate tablespaces for Tables and Indexes. Also Temp is in different temporary tablespace and UNDO also in UNDO tablespace and Index tablespace contains only Indexes. The tablespace usage for tables is 80% and Index is 91%.There is not enough disk space to allocate for the datafile on our system. I ran a rebuild on one of the Index but now notice the Index tablespace is 98% used soon after the rebuild finished.

How can i free up space for Index tablespace and why does the size of Index tablespace increased after the rebuild.

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