Group Profile Audit (GPA) table size
Good day!
I created a secondary schema for audit (Oracle Identity Manager 9.0.1.2)
I exported main oim schema and imported to second auditing schema. I found that GPA table is huge in size and I duplicate it to second schema.
Question is: is it possible to delete this table in one of the two schemas (oim main or oim audit (second)) or this table must exist in both schemas?
Actually second question: how & actually what tables could I clean to free some space?
You can use Archival Utilities which come with OIM to make some space:
http://docs.oracle.com/cd/B32479_01/doc.903/b32451/reconarchive.htm
http://docs.oracle.com/cd/E10391_01/doc.910/e10361/tasks_archival.htm
Similar Messages
-
Lock table size change in instance profile RZ10
i need your help. I changed the table size from 10000 to 17000 and then to 20000 but still have the same table size as before.i used rz10 to change the parameter enque/table_size.
the steps i followed are as in all documents i can find.
1. change parameter value
2. save it (parameter and instance)
3. activate it.
4.on restart instance (i just left it for the offline backup to do this).
on the 4th step is that enough, because after the system came back i checked the parameter in rz11 and the current value on the parameter is still 10000. (owner entries and granule still 12557 as before)
am i missing something?
vinaka
epeliHi,
it COULD be that the offline backup did indeed no restart of the instance. From Oracle I know that there is a so called "reconnect-status" where the SAP instance is trying over a defined period of time to log to the database again after the workprocesses lost connection to the database processes. In this timeframe the instance is not to be considered as restarted.
If you check ST02 you see the point of time where the instance was restarted in reality the last time. If this date is before your offline backup you need to do the restart manually.
Best regards, Alexander -
Give me the sql query which calculte the table size in oracle 10g ecc 6.0
Hi expert,
Please give me the sql query which calculte the table size in oracle 10g ecc 6.0.
RegardsOrkun Gedik wrote:
select segment_name, sum(bytes)/(1024*1024) from dba_segments where segment_name = '<TABLE_NAME>' group by segment_name;
Hi,
This delivers possibly wrong data in MCOD installations.
Depending on Oracle Version and Patchlevel dba_segments does not always have the correct data,
at any time esp. for indexes right after being rebuild parallel (Even in DB02 because it is using USER_SEGMENTS).
Takes a day to get the data back in line (never found out, who did the correction at night, could be RSCOLL00 ?).
Use above statement with "OWNER = " in WHERE for MCOD or connect as schema owner and use USER_SEGMENTS.
Use with
segment_name LIKE '<TABLE_NAME>%'
if you like to see the related indexes as well.
For partitioned objects, a join from dba_tables / dba_indexes to dba_tab_partitions/dba_ind_partitions to dba_segments
might be needed, esp. for hash partitioned tables, depending on how they have been created ( partition names SYS_xxxx).
Volker -
Enqueue Replication Server - Lock Table Size
Note : I think I had posted it wrongly under ABAP Development, hence request moderator to kindly delete this post. Thanks
Dear Experts,
If Enqueue Replication server is configured, can you tell me how to check the Lock Table size value, which we set using profile parameter enque/table_size.
If enque server is configured in the same host as CI, it can be checked using
ST02 --> Detail Analysis Menu --> Storage --> Shared Memory Detail --> Enque Table
As it is a Standalone Enqueue Server, I don't know where to check this value.
Thanking you in anticipation.
Best Regards
L RaghunahthHi
Raghunath
Check the following links
http://help.sap.com/saphelp_nw2004s/helpdata/en/37/a2e3ab344411d3acb00000e83539c3/content.htm
http://help.sap.com/saphelp_nw04s/helpdata/en/44/5efc11f3893672e10000000a114a6b/content.htm
Regards
Bhaskar -
we have 2 db's called UT & ST.. with same setup and data also same
running on hp-ux itanium 11.23 with same binary 9.2.0.6
one of schema called arb contain only materialised views in both db's and with same name of db link connect to same remote server in both db's...
in that schema of one table called rate has tablesize as 323 mb and st db, has same table rate has 480mb of tablesize, by querying the bytes of dba segement of table i found the difference.. query has follows
In UT db
select sum(bytes)/1024/1024 from dba_segments where segment_name='RATE'
output
323
In ST db
select sum(bytes)/1024/1024 from dba_segments where segment_name='RATE'
output
480mb
its quite strange, both of table, contain same ddl and same counts of records and initalextent and next extents, all storage parameter are same and same uniform size of 160k tablespace with both db..
ddl table of ut enviornment
SQL> select dbms_metadata.get_ddl('TABLE','RATE','ARB') from dual;
CREATE TABLE "ARB"."RATE"
( "SEQNUM" NUMBER(10,0) NOT NULL ENABLE,---------- ) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
STORAGE(INITIAL 163840 NEXT 163840 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "AB_DATA"
ddl table of st enviornment
CREATE TABLE "ARB"."RATE"
( "SEQNUM" NUMBER(10,0) NOT NULL ENABLE,---------- ) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
STORAGE(INITIAL 163840 NEXT 163840 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "AB_DATA"..
tablespace of st db
SQL> select dbms_metadata.get_ddl('TABLESPACE','AB_DATA') from dual;
CREATE TABLESPACE "AB_DATA" DATAFILE
'/koala_u11/oradata/ORST31/ab_data01ORST31.dbf' SIZE 1598029824 REUSE
LOGGING ONLINE PERMANENT BLOCKSIZE 8192
EXTENT MANAGEMENT LOCAL UNIFORM SIZE 163840 SEGMENT SPACE MANAGEMENT MANUAL
tablespace of ut db
SQL> select dbms_metadata.get_ddl('TABLESPACE','AB_DATA') from dual;
CREATE TABLESPACE "AB_DATA" DATAFILE
'/koala_u11/oradata/ORDV32/ab_data01ORDV32.dbf' SIZE 1048576000 REUSE
LOGGING ONLINE PERMANENT BLOCKSIZE 8192
EXTENT MANAGEMENT LOCAL UNIFORM SIZE 163840 SEGMENT SPACE MANAGEMENT MANUAL
why table size is difference?If everything is the same as you stated, i would guess the bigger table might have some free blocks. If you truncate the bigger one and insert /*+ append */ into bigger (select * from smaller) then check the size of bigger table, see what you can find. By the way, dba_segments, or dba_extents only gives the usage to extents level granulity, withing a extent, there are blocks might not be fully occupied. In order to get exact bytes of the space, you 'll need to use dbms_space package.
You may get some idear from the extream example I created below :
SQL>create table big (c char(2000));
Table created.
SQL>select sum(bytes)/1024 kb from user_segments
SQL>where segment_name='BIG';
KB
128 -- my tablespace is LMT uniform sized 128KB
1 row selected.
SQL>begin
SQL> for i in 1..100 loop
SQL> insert into big values ('A');
SQL> end loop;
SQL>end;
SQL>/
PL/SQL procedure successfully completed.
SQL>select sum(bytes)/1024 kb from user_segments
SQL>where segment_name='BIG';
KB
256 -- 2 extents after loading 100 records, 2KB+ each record
1 row selected.
SQL>commit;
Commit complete.
SQL>update big set c='B' where rownum=1;
1 row updated.
SQL>delete big where c='A';
99 rows deleted. -- remove 99 records at the end of extents
SQL>commit;
Commit complete.
SQL>select sum(bytes)/1024 kb from user_segments
SQL>where segment_name='BIG';
KB
256 -- same 2 extents 256KB since the HWM is not changed after DELETE
1 row selected.
SQL>select count(*) from big;
COUNT(*)
1 -- however, only 1 record occupies 256KB space(lots of free blocks)
1 row selected.
SQL>insert /*+ append */ into big (select 'A' from dba_objects where rownum<=99);
99 rows created. -- insert 99 records ABOVE HWM by using /*+ append */ hint
SQL>commit;
Commit complete.
SQL>select count(*) from big;
COUNT(*)
100
1 row selected.
S6UJAZ@dor_f501>select sum(bytes)/1024 kb from user_segments
S6UJAZ@dor_f501>where segment_name='BIG';
KB
512 -- same 100 records, same uniformed extent size, same tablespace LMT, same table
-- now takes 512 KB space(twice as much as what it took originally)
1 row selected. -
Why Index size is bigger than table size?
Dear All,
I found in my database my tables sizes is coming around 30TB (All Tables in Database). and my index size for the same is 60TB. This is data ware housing environment.
How the index size and table size are differing?
Why they are differing? why index size is bigger than table size?
How to manage the size?
Please give me clear explanation and required information on the above.
Regards
SureshThere are many reasons why the total space allocated indexes could be larger than the total space allocated to tables. Sometimes it's a mark of good design, sometimes it indicates a problem. In your position your first move is to spend as little time as possible in deciding whether your high-level summary is indicative of a problem, so you need to look at a little more detail.
As someone else pointed out - are you looking at the sizes because you are running out of space, or because you have a perceived performance problem. If not, then your question is one of curiosity.
If it's about performance then you should be looking for code (either through statspack/AWR or sql_trace) that is performing badly and use the analysis of that code to help you identify suspect indexes.
If it's about space, then you need to do some simple investigations aimed at finding a few indexes that can be "shrunk" or dropped. Pointers for this are:
select
table_owner, table_name, count(*)
from
dba_indexes
group by
table_owner, table_name
having
count(*) > 2 -- adjust to keep the output short
order by
count(*) desc;This tells you which tables have the most indexes - check the sizes of the tables and indexes and then check the index definitions for the larger tables with lots of indexes.
Second quick check - join dba_tables to dba_indexes by table_name, and report the table blocks and index leaf blocks in desending order of leaf block count. Look for indexes which are very big, and also bigger than their underlying tables. There are special cases (and bugs) that can cause indexes to be much bigger than they need to be ... this report may identify a couple of anomalies that could benefit from an emergency fix followed (possibly) by a strategic fix.
Regards
Jonathan Lewis -
Hi
I've set up an old 1121 access point as a WGB on our unified (i.e. lightweight) wireless network. It works fine, but the VLAN that
the wireless side connects to has between 200 and 300 clients at any one time. The bridge table size seems to be fixed at 300 entries, and I'm concerned that at some point this may overflow. I've put this in the wireless config:
int dot110
no bridge-group 1 source-learning
bridge-group 1 block-unknown-source
to try to keep the size of the table down, but it seems to make no difference. Is my only option to move the WGB to a VLAN which has fewer clients?
Thanks
Max Caines
University of WolverhamptonHi , I fetched this for you:
Total number of forwarding database elements in the system. The memory to hold bridge entries is allocated in blocks of memory sufficient to hold 300 individual entries. When the number of free entries falls below 25, another block of memory sufficient to hold another 300 entries is allocated. Thus, the total number of forwarding elements in the system is expanded dynamically, as needed, limited by the amount of free memory in the router.
Now this docu if for router, but since both AP and Routers run IOS Code then the logic should still be the same.
So either:
1- Keep me posted on what happens when you indeed reach 300 on current table to see if AP will allocate extra 300 when 25 threshold is reached
or
2- move wgb to less busy vlan
Thanks
Serge -
DB Query to get table sizes and classification in OIM Schema
My customer's OIM Production DB size has gone upto 300 gb. They want to know why. Like they want to know "what kind of data" is the reason for such a large size of DB. Is there a way to find out, from OIM schema, what are sizes for each table (like ACT, USR etc) and classify them into User Data, Config Data, Audit Data, Recon Data, etc?
Any help is very much appreciated in this regard.
Regards
VinayYou can categorize tables using information from below link:
http://rajnishbhatia19.blogspot.in/2008/08/oim-tables-descriptions-9011.html
You can count number of rows for tables using:
select count(*) from tablename;
Find major tables whose size is to be calculated and find avg length of a row (by adding attribute lengths defined).
Finally, calculate the table size using below query:
select TABLE_NAME, ROUND((AVG_ROW_LEN * NUM_ROWS / 1024), 2) SIZE_KB from USER_TABLES order by TABLE_NAME;
regards,
GP -
How can I list used database/table size resp user space ? Compression after
How can I list used + maximum tablespace/database/table size of an Oracle database ?
How can I list the space used currently by a user resp. his tables+indizes ?
By the way: If I delete a user or table from an Oracle database installation: are then only the entires deleted
or is the space released as well ?
In otherwords: After I deleted a user resp. table is it recommended to do something like a "compress" similarly to Outlook
or other eMail clients to shrink really the occupied space on hard disc ?I hope this helps you
select df.tablespace_name "Tablespace",
totalusedspace "Used MB",
(df.totalspace - tu.totalusedspace) "Free MB",
df.totalspace "Total MB",
round(100 * ( (df.totalspace - tu.totalusedspace)/ df.totalspace))
"Pct. Free"
from
(select tablespace_name,
round(sum(bytes) / 1048576) TotalSpace
from dba_data_files
group by tablespace_name) df,
(select round(sum(bytes)/(1024*1024)) totalusedspace, tablespace_name
from dba_segments
group by tablespace_name) tu
where df.tablespace_name = tu.tablespace_name; -
"Convert Text to Table" Size limit issue?
Alphabetize a List
I’ve been using this well known work around for years.
Select your list and in the Menu bar click Format>Table>Convert Text to Table
Select one of the column’s cells (1st click selects entire table, 2nd click selects individual cell)
Open “Table Inspector” (Click Table icon at top of Pages document)
Make sure “table” button is selected, not “format” button
Choose Sort Ascending from the Edit Rows & Columns pop-up menu
Finally, click Format>Table>Convert Table to Text.
A few days ago I added items & my list was 999 items long, ~22 pages.
Tonight, I added 4 more items. Still the same # pages but now 1,003 items long.
Unable to Convert Text to Table! Tried for 45 minutes. I think there is a list length limit, perhaps 999 items?
I tried closing the document w/o any changes. Re-opening Pages & re-adding my new items to the end of the list as always & once again when I highlight list & Format>Table>Convert Text to Table .....nothing happens! I could highlight part of the list up to 999 items & leave the 4 new items unhighlighted & it works. I pasted the list into a new doc and copied a few items from the middle of the list & added them to the end of my new 999 list to make it 1003 items long (but different items) & did NOT work. I even attempted to add a single new item making the list an even 1000 items long & nope, not working. Even restarted iMac, no luck.
I can get it to work with 999 or fewer items easily as always but no way when I add even a single new item.
Anyone else have this problem? It s/b easy to test out. If you have a list of say, 100 items, just copy & repeatedly paste into a new document multiple times to get over 1,000 & see if you can select all & then convert it from text to table.
Thanks!
Pages 08 v 3.03
OS 10.6.8G,
Yes, Pages has a table size limit, as you have discovered. Numbers has a much greater capacity for table length, so if you do your sort in Numbers you won't have any practical limitation.
A better approach than switching to Numbers for the sort would be to download, install and activate Devon Wordservice. Then you could sort your list without converting it to a table.
Jerry -
Setting the header of a Column group in a Advanced table dynamically
Hi All,
There is a requirement to set the Header of a column group in a Advanced table dynamically by fetching the values from a view attribute.
Code :
OAAdvancedTableBean spiderTbl1 ;
Problem:
It is not able to set the value for the header inspite of getting the handle of the bean.
Analysis:
the same piece of code works for
1) Setting the text of the advanced table
2) Setting the header of a column in a column group
Please let me know if there is anything more that needs to be done for setting the prompt of a column group header.
Thanks in advance!I have posted it without giving the complete code by mistake. Below is the code:
OAAdvancedTableBean spiderTbl1 ;
OASortableHeaderBean spiderHdr1;
spiderTbl1 = (OAAdvancedTableBean)webBean.findChildRecursive("SpiderCatTbl1RN");
if (spiderTbl1!=null){
spiderHdr1= (OASortableHeaderBean)spiderTbl1.findChildRecursive("AnalogHdr");
if (spiderHdr1!=null) {
spiderHdr1.setAttributeValue(OAWebBeanConstants.PROMPT_ATTR,
new OADataBoundValueViewObject(spiderHdr1,
"SpiderCategory1",
"ProjRegPVO1"));
} -
Table size exceeds Keep Pool Size (db_keep_cache_size)
Hello,
We have a situation where one of our applications started performing bad since last week.
After some analysis, it was found this was due to data increase in a table that was stored in KEEP POOL.
After the data increase, the table size exceeded db_keep_cache_size.
I was of the opinion that in such cases KEEP POOL will still be used but the remaining data will be brought in as needed from the table.
But, I ran some tests and found it is not the case. If the table size exceeds db_keep_cache_size, then KEEP POOL is not used at all.
Is my inference correct here ?
SQL> select * from v$version;
BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - Production
PL/SQL Release 11.2.0.2.0 - Production
CORE 11.2.0.2.0 Production
TNS for Linux: Version 11.2.0.2.0 - Production
NLSRTL Version 11.2.0.2.0 - ProductionSetup
SQL> show parameter keep
NAME TYPE VALUE
buffer_pool_keep string
control_file_record_keep_time integer 7
db_keep_cache_size big integer 4M
SQL>
SQL>
SQL> create table t1 storage (buffer_pool keep) as select * from all_objects union all select * from all_objects;
Table created.
SQL> set autotrace on
SQL>
SQL> exec print_table('select * from user_segments where segment_name = ''T1''');
PL/SQL procedure successfully completed.
SQL> set serveroutput on
SQL> exec print_table('select * from user_segments where segment_name = ''T1''');
SEGMENT_NAME : T1
PARTITION_NAME :
SEGMENT_TYPE : TABLE
SEGMENT_SUBTYPE : ASSM
TABLESPACE_NAME : HR_TBS
BYTES : 16777216
BLOCKS : 2048
EXTENTS : 31
INITIAL_EXTENT : 65536
NEXT_EXTENT : 1048576
MIN_EXTENTS : 1
MAX_EXTENTS : 2147483645
MAX_SIZE : 2147483645
RETENTION :
MINRETENTION :
PCT_INCREASE :
FREELISTS :
FREELIST_GROUPS :
BUFFER_POOL : KEEP
FLASH_CACHE : DEFAULT
CELL_FLASH_CACHE : DEFAULT
PL/SQL procedure successfully completed.DB_KEEP_CACHE_SIZE=4M
SQL> select count(*) from t1;
COUNT(*)
135496
Execution Plan
Plan hash value: 3724264953
| Id | Operation | Name | Rows | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 538 (1)| 00:00:07 |
| 1 | SORT AGGREGATE | | 1 | | |
| 2 | TABLE ACCESS FULL| T1 | 126K| 538 (1)| 00:00:07 |
Note
- dynamic sampling used for this statement (level=2)
Statistics
9 recursive calls
0 db block gets
2006 consistent gets
2218 physical reads
0 redo size
424 bytes sent via SQL*Net to client
419 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
SQL> /
COUNT(*)
135496
Execution Plan
Plan hash value: 3724264953
| Id | Operation | Name | Rows | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 538 (1)| 00:00:07 |
| 1 | SORT AGGREGATE | | 1 | | |
| 2 | TABLE ACCESS FULL| T1 | 126K| 538 (1)| 00:00:07 |
Note
- dynamic sampling used for this statement (level=2)
Statistics
0 recursive calls
0 db block gets
1940 consistent gets
1937 physical reads
0 redo size
424 bytes sent via SQL*Net to client
419 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processedDB_KEEP_CACHE_SIZE=10M
SQL> connect / as sysdba
Connected.
SQL>
SQL> alter system set db_keep_cache_size=10M scope=both;
System altered.
SQL>
SQL> connect hr/hr@orcl
Connected.
SQL>
SQL> show parameter keep
NAME TYPE VALUE
buffer_pool_keep string
control_file_record_keep_time integer 7
db_keep_cache_size big integer 12M
SQL>
SQL> set autotrace on
SQL>
SQL> select count(*) from t1;
COUNT(*)
135496
Execution Plan
Plan hash value: 3724264953
| Id | Operation | Name | Rows | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 538 (1)| 00:00:07 |
| 1 | SORT AGGREGATE | | 1 | | |
| 2 | TABLE ACCESS FULL| T1 | 126K| 538 (1)| 00:00:07 |
Note
- dynamic sampling used for this statement (level=2)
Statistics
0 recursive calls
0 db block gets
1940 consistent gets
1937 physical reads
0 redo size
424 bytes sent via SQL*Net to client
419 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
SQL> /
COUNT(*)
135496
Execution Plan
Plan hash value: 3724264953
| Id | Operation | Name | Rows | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 538 (1)| 00:00:07 |
| 1 | SORT AGGREGATE | | 1 | | |
| 2 | TABLE ACCESS FULL| T1 | 126K| 538 (1)| 00:00:07 |
Note
- dynamic sampling used for this statement (level=2)
Statistics
0 recursive calls
0 db block gets
1940 consistent gets
1937 physical reads
0 redo size
424 bytes sent via SQL*Net to client
419 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processedDB_KEEP_CACHE_SIZE=20M
SQL> connect / as sysdba
Connected.
SQL>
SQL> alter system set db_keep_cache_size=20M scope=both;
System altered.
SQL>
SQL> connect hr/hr@orcl
Connected.
SQL>
SQL> show parameter keep
NAME TYPE VALUE
buffer_pool_keep string
control_file_record_keep_time integer 7
db_keep_cache_size big integer 20M
SQL> set autotrace on
SQL> select count(*) from t1;
COUNT(*)
135496
Execution Plan
Plan hash value: 3724264953
| Id | Operation | Name | Rows | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 538 (1)| 00:00:07 |
| 1 | SORT AGGREGATE | | 1 | | |
| 2 | TABLE ACCESS FULL| T1 | 126K| 538 (1)| 00:00:07 |
Note
- dynamic sampling used for this statement (level=2)
Statistics
0 recursive calls
0 db block gets
1943 consistent gets
1656 physical reads
0 redo size
424 bytes sent via SQL*Net to client
419 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
SQL> /
COUNT(*)
135496
Execution Plan
Plan hash value: 3724264953
| Id | Operation | Name | Rows | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 538 (1)| 00:00:07 |
| 1 | SORT AGGREGATE | | 1 | | |
| 2 | TABLE ACCESS FULL| T1 | 126K| 538 (1)| 00:00:07 |
Note
- dynamic sampling used for this statement (level=2)
Statistics
0 recursive calls
0 db block gets
1943 consistent gets
0 physical reads
0 redo size
424 bytes sent via SQL*Net to client
419 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processedOnly with 20M db_keep_cache_size I see no physical reads.
Does it mean that if the db_keep_cache_size < table size, there is no caching for that table ?
Or am I missing something ?
Rgds,
GokulHello Jonathan,
Many thanks for your response.
Here is the test I ran;
SQL> select buffer_pool,blocks from dba_tables where owner = 'HR' and table_name = 'T1';
BUFFER_ BLOCKS
KEEP 1977
SQL> select count(*) from v$bh where objd = (select data_object_id from dba_objects where owner = 'HR' and object_name = 'T1');
COUNT(*)
1939
SQL> show parameter db_keep_cache_size
NAME TYPE VALUE
db_keep_cache_size big integer 20M
SQL>
SQL> alter system set db_keep_cache_size = 5M scope=both;
System altered.
SQL> select count(*) from hr.t1;
COUNT(*)
135496
SQL> select count(*) from v$bh where objd = (select data_object_id from dba_objects where owner = 'HR' and object_name = 'T1');
COUNT(*)
992I think my inference is wrong and as you said I am indeed seeing the effect of tail end flushing the start of the table.
Rgds,
Gokul -
Change table size and headers in type def cluster
Is is possible to change a table size and headers that is inside a type def cluster?
I have a vi that loads test parameters from a csv file. The original program used an AC load so there was a column for power factor. I now have to convert this same program to be used with a DC load, so there is no power factor column.
I have modified to vi to adjust the "test table" dynamically based on the input file. But the "test table" in the cluster does not update it's size or column headers.
The "test table" in the cluster is used through out the main program to set the values for each test step and display the current step by highlighting the row.
Attachments:
Load Test Parms.JPG 199 KB
Table Cluster.JPG 122 KBNevermind, I figured it out...
I was doing it wrong from the start, in an effort to save time writing the original program I simply copied the "test table" to by type def cluster. This worked but was not really as universal as I thought it would be, as the table was now engraved in stone since the cluster is a type def.
I should not have done that, but rather used an array in the cluster and only used the table in the top level VI where it's displayed on the screen. -
Table size not reducing after delete
The table size in dba_segments is not reducing after we delete the data from the table. How can i regain the space after deleting the data from a table.
Regards,
NateshI think when you do DELETE it removes the data but
it's not releasing any used space and it's still
marked as used space. I think reorganizing would help
to compress and pack all block and relase any unused
space in blocks. Why do you think that? Deleting data will create space that can be reused by subsequent insert/ update operations. It is not going to release space back to the tablespace to make it available for inserts into other tables in the tablespace, but that's not generally an issue unless you are permanently decreasing the size of a table, which is pretty rare.
Would you also please explain about different about
LOB and LONG ? or point me to any link which explain
baout it.From the Oracle Concepts manual's section on the LONG data type
"Note:
Do not create tables with LONG columns. Use LOB columns (CLOB, NCLOB) instead. LONG columns are supported only for backward compatibility.
Oracle also recommends that you convert existing LONG columns to LOB columns. LOB columns are subject to far fewer restrictions than LONG columns. Further, LOB functionality is enhanced in every release, whereas LONG functionality has been static for several releases."
LONG was a very badly implemented solution to storing large amounts of data. LOBs are a much, much better designed solution-- you should always be using LOBs.
Justin -
TABLE SIZE NOT DECREASING AFTER DELETION. BLOCKS NOT BEING RE-USED
Hi ,
Problem:
Table size before deletion: 40GB
Total rows before deletion: over 200000
Rows deleted=190000 rows
Table size after deletion is more (as new data was inserted meanwhile).
Purpose of table:
This table is a sort of transaction table.
Whenever an SR is raised by CSR, data gets inserted into this table and is removed when the status is cleared.
So there is constant insertion and purging will happen on this table.
We are using ASSM and tablespace is LOCAL.
This Table has a LONG column also.
Is this problem because of LONG column ?
So here there are 2 problems.
1) INSERTs are not using the space created by DELETE.
2) New INSERTs are taking much more space then expected ?
Let me have your suggestion
Thanks,I think when you do DELETE it removes the data but
it's not releasing any used space and it's still
marked as used space. I think reorganizing would help
to compress and pack all block and relase any unused
space in blocks. Why do you think that? Deleting data will create space that can be reused by subsequent insert/ update operations. It is not going to release space back to the tablespace to make it available for inserts into other tables in the tablespace, but that's not generally an issue unless you are permanently decreasing the size of a table, which is pretty rare.
Would you also please explain about different about
LOB and LONG ? or point me to any link which explain
baout it.From the Oracle Concepts manual's section on the LONG data type
"Note:
Do not create tables with LONG columns. Use LOB columns (CLOB, NCLOB) instead. LONG columns are supported only for backward compatibility.
Oracle also recommends that you convert existing LONG columns to LOB columns. LOB columns are subject to far fewer restrictions than LONG columns. Further, LOB functionality is enhanced in every release, whereas LONG functionality has been static for several releases."
LONG was a very badly implemented solution to storing large amounts of data. LOBs are a much, much better designed solution-- you should always be using LOBs.
Justin
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