How To Limit The Table Size
Oct 9, 2012
I have a problem with one table.. First of all:
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
The problem table resides in a locally managed tablespace. About 10 millions records is added in this table every day. After 36 hours all these records moved to another (partitioned) table, so the size of data in the problem table always about 75 Gb. But the size of table is reached 157 Gb today, and it still growing. The results of dbms_space.space_usage are showed below:
Size of blocks with:
0-25% free space: 4726784
25-50% free space: 17301504
50-75% free space: 24920064
75-100% free space: 102418669568
full blocks: 54761594880Thus, a lot of blocks have 75-100% free space but the table constantly growing: during last 9 days the size increased from 123 to 157 Gb.
how to stop the table growing? It there any way to limit the table size in locally managed tablespace?
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Oct 24, 2013
I'm using TimesTen Release 11.2.1.9.8 (64 bit Linux/x86_64) 1. is there any limit in size for a single table. How much a table size can be increased? 2. Is there any limit in number of records in a table?
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May 9, 2012
i want to know the limit of " max pool size" attribute in connection string. and at what basis it should be set. and i am using oracle 11.0.2.0.1.
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Feb 15, 2011
How to free up the tablespace size when it reaches its threshold (Max limit)?
Say for example USERS & SYSAUX tablespace reaches above 90%.
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Oct 18, 2013
I have created a workspace to use oracle apex, after a while I tried to run a script, the following message has been displayed to me, The script output reached the maximum workspace result size limit. Delete existing results or contact your administrator to increase the maximum workspace result size.
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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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Feb 11, 2013
What is the limit on number of partitions on a table.on many forums , 1024k-1 is given the maximum limit.But Exactly , I am not able to understand this 1024k-1.
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Aug 10, 2010
Question 1: What is the no of column limits in a single table? Is it same for all type of tables.
Question 2: How to estimate the size for a table in advance with "undo generation amount, index size, redo log size"?
Question 3: What is the real time scenario for creating a table on another schema?
Question 4:I read the below line in a document, but I'm not able to understand it
"we can't move types and extent tables to a different schema when the original data still exists in the database"?
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Aug 21, 2011
Table contains 10k records,we are going to insert data into another table with FORALL bulk collect limit 1000. if i use 10000 ,it's completed fast compared to 1000 limit.Can u tell me which one is better Limit.
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Apr 4, 2011
I was about to move some tables from one table space to another but it seems it is not possible to move partitioned tables between table spaces of different block sizes.
So far the only option I have is to export and then import back the data.
know if there is any way to move a partitioned table between table spaces of different block size?
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Sep 13, 2011
One of my user is asking to give me the size(bytes) of row 39 and size(bytes) of row 49 of a table ZETR.
as i am not aware of how to collect size(bytes) for a particular row.
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Jul 12, 2011
AS of we know that we can get the number of blocks occupied by data in a table by querying the user_tables Data Dictionary.
My questions are,
1.)how to know if i want the each block size ?(i.e each block size either it is 4kb or 8kb or 16kb..)?
2.) Is the block size is same for all blocks in a table and in Database or it varies?
3.)The block size is DB dependent or Table dependent or Machine dependent(32-bit, 64-bit and OS)?
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Oct 14, 2012
I have table and it's size is full when i'm inserting records , records are not inserting , How can i increase table size
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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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Mar 28, 2012
How to find the tables starting with smallest size and vice versa in schema level and database level?
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Jul 12, 2013
how to find the data size in particular Table?Ex:I need find out the sh.sales table how much data size is loaded
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Sep 28, 2012
I have a partitioned table (one partition per month). Every month there are added about 1GB data. What extent size should I set? 1GB will be ok?
What if data will be greater than 1GB, adding new 1GB extent takes probably a lot of time and clients may see delays while they're inserting in this time? (it's OLTP system)
When new extent is allocated? Exact in time of lacking space in existing extent or before? Partitions are dropped after one year so free space isn't a problem.
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Feb 5, 2007
when trying to calculate the occupied space for a table, I'm using DBA_SEGMENTS, which works fine as long as the table does not have a BLOB column.
As far as I can tell, the size of the BLOB data is stored with the SEGMENT_TYPE = 'LOBSEGMENT', but I cannot find a view that tells me which DBA_SEGMENT row belongs to the BLOB column in the table I'm checking.
To give you an example:
select sum(BYTES)
from DBA_SEGMENTS
where owner = user
and segment_name = 'MY_TABLE'
group by SEGMENT_NAME
returns 262144
running:
SELECT sum(length(blob_column))
FROM my_table
returns 821333
There are entries in DBA_SEGMENTS for my user with the type LOBSEGMENT, but I cannot find a way to map the correct DBA_SEGMENTS row to the table I am checking.
I'm using Oracle 10.2.0.3.0 on Redhat
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May 13, 2011
How to estimate next extent size for very large table? What should I take into account? Is there any formula for that?
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May 17, 2012
how can I reduce the size of ------------- when table is null. I m in sqlplus I typeSelect A,B,C,D,F,G,H from SOMEHERE where B='GOAT1';
if A is 10 char long
B is 50
c is 10
d is 30
e is 10
f is 50
if any of those don't have data it still outputs ----------------------------- (50) for B and tht covers the whole screenhow can I make is to show less if it null
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Jul 16, 2010
I have requested the Infrastructure DBA to move a table with size 126GB(as shown in the stats/size tab in TOAD) from one tablespace to another.This is free the huge space in the first tablespace which i wanted to use for creating another table.
But when the table is moved to another tablespace, surprisingly for me, i saw that the sizeof the table has come down to 8 GB from 126 GB.Point to be noted is that everyday there are physical deletes happening on the table.
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Jan 4, 2012
I have a table: desc STG_XML
Name Null Type
------------------------------ -------- ------------------------
ENTITY_ID NOT NULL VARCHAR2(100 CHAR)
ENTITY_TYPE_ID NOT NULL NUMBER
SOURCE_ID NOT NULL VARCHAR2(512 CHAR)
XML_SCHEMA_ID NOT NULL NUMBER
JOB_ID NOT NULL NUMBER
FINGERPRINT NOT NULL VARCHAR2(100 CHAR)
ENTITY_XML_DATA CLOB()
ARCHIVED NUMBER(1)
CREATION_DATE TIMESTAMP(6)
MODIFICATION_DATE TIMESTAMP(6)
ARCHIVING_DATE TIMESTAMP(6)
CREATED_BY VARCHAR2(50 CHAR)
MODIFIED_BY VARCHAR2(50 CHAR)
The problem is that the data of the table are 40GB while on the DB the table holds 400GB! How can I shrink and reuse that space except from drop/recreate and drop/import?
The table has no initial data, so that I can play with the INITIAL parameter. Data are inserted, updated and deleted all the time. I have run DBMS_ADVISOR which recommended to SHRINK table. I have performed the shrink :
alter table STG_XML shrink space COMPACT;
but I haven't gained any space.
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May 9, 2011
Objective : To find solution to archieve data from 2 big tables which is occupying maximum size in the data base. With current data (From Jan 2005 to Sept 2011) it has records as mentioned below:
transaction - 41687927
trnansaction_dtl - 83945934
We need to load data and run monthly batches from October 2011 to current month which will increase this space.
1. Issue is there will not be having so much space.
2. Maintenance of such table is diffcult now.Also there is huge impact on performance. Can we think of partitioning the table base on date aswe query 1st table based on certain date range?
3. Most of reports use this table and creating performances issues
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Oct 2, 2012
One of our solaris machines is running Oracle 8.0.3
A table reached the 2 Gb size and oracle failed due to the operating system file size limitation.
The information in the table is not relevant and can be deleted, but the table contains a lot of indexes.
I would like to know the best procedure to delete the information and reduce the size of the file.
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Jul 10, 2010
How can we find the size of a view or synonym or table in a database. What is the code.
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Mar 22, 2011
I am exporting a table that is 3 GB in size and also Partitioned with option NOCOMPRESS specified.
Now when i export it with COMPRESS=N option of exp utility then it should take 3 Gb in target server but will exporting it with COMPRESS=Y will save some storage during import or once NOCOMPRESS option specified on partition has no impact on exp utility COMPRESS=Y option and it will take 3 GB space in both cases
Is this true that whether u specify COMPRESS=N|Y during export it does not matter the size will be 3 GB always after import?
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Oct 20, 2011
ops$tkyte@DEV8I.WORLD> select blocks, empty_blocks,
2 avg_space, num_freelist_blocks
3 from user_tables
4 where table_name = 'T'
5 /
BLOCKS EMPTY_BLOCKS AVG_SPACE NUM_FREELIST_BLOCKS
---------- ------------ ---------- -------------------
19 35 2810 3
Ok, the above shows us:
- we have 55 blocks allocated to the table (still)
- 35 blocks are totally empty (above the HWM)
- 19 blocks contains data (the other block is used by the system)
- we have an average of about 2.8k free on each block used.
Therefore, our table
- consumes 19 blocks of storage in total.
- of which 19 blocks * 8k blocksize - 19 block * 2.8k free = 98k is used for our data.
not too sure this calculation is accurate for getting the size (data)of the table.
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Aug 3, 2012
I am trying to calculate the compressed size of backup of my database by excluding table space ( and all the tables in that table space).
I know how to calculate the size of particular user DB size.
select sum(bytes/1024/1024)"size" from dba_segments where owner='ABC';
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Feb 14, 2013
We have a table emp_details with 23772889 records. Our requirement is to increase few of the columns size in the table emp_details. We are following the below alter statement which is taking around 2 hours of time.
ALTER TABLE emp_details
MODIFY
(
address char(90)
,department char(30)
)
/
Is there any way to improve the above query performance?
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Apr 26, 2010
I have a query on , how to view the sample data from a very table which is large in size ( more than 10 million ).
I just need to see some sample data from a large table ( to see what kind of data which is application related ).
My question is :
Select *
from Sample_table
where rownum < 10
is this a Good way to view the sample data ?
I have understanidng that the rownum will be assigined to the rows once all the rows are reteived.
So what is the best way to view ?..I am not sure of any condition to put in the intial time of querying.
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