Solved

Questions about XML type databases

Posted on 2013-02-07
6
318 Views
Last Modified: 2013-02-28
Hello all,

There is a  database which is of type xml ..i mean all the tables are xml tye and it contaings huge blob data.  The application team are running a process and it is running for more than one day.. so  have to increase the performance of that.. hiow can i check the stats on that table and how can i update the stats.  when i query like the regular tables to check the stats...it is not showing anything

like this.so please advise how to handle xml type tables/databases

select last_analyzed from dba_tables where table_name ='PS_IN_DEMAND_ADDR';
sql>no rows selected
0
Comment
Question by:bhanu823
  • 3
  • 2
6 Comments
 
LVL 76

Expert Comment

by:slightwv (䄆 Netminder)
ID: 38865217
>>sql>no rows selected

This means you don't have a table called 'PS_IN_DEMAND_ADDR'.  At best you get a null value for last_analyzed.

>>so please advise how to handle xml type tables/databases

The answer to this depends on how the XML is being used/accessed.

For example, "The application team are running a process and it is running for more than one day",  What is this doing?
0
 

Author Comment

by:bhanu823
ID: 38865259
whn i look up the toad the table is there. the tables are  there but dont know hot to update the stats or to check
0
 
LVL 76

Expert Comment

by:slightwv (䄆 Netminder)
ID: 38865268
>>whn i look up the toad the table is there.

Then DBA_TABLES should see it.

>>but dont know hot to update the stats or to check

Checking is with last_analyzed column of dba_tables.  There are other important columns in there as well but this will tell you when it was done.

As for updating them, check the online docs for DBMS_STATS.

Until we know more about what the app is doing, I cannot suggest what stats you might need to collect.

What makes you think it is a stats issue?
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 32

Expert Comment

by:awking00
ID: 38865334
>>The application team are running a process and it is running for more than one day.. so  have to increase the performance of that<<
Do you have xmlindexes on your tables?
0
 
LVL 76

Expert Comment

by:slightwv (䄆 Netminder)
ID: 38865349
>>Do you have xmlindexes on your tables?

I'm thinking that until we know what the process is doing with the XML, xmlindexes may not be any benefit.
0
 
LVL 32

Accepted Solution

by:
awking00 earned 500 total points
ID: 38865405
slightwv,
I agree with you. The reason I was asking was that xmlindexes can dramatically reduce performance if inserts are being made, but greatly enhance performance if data is being extracted, which is where I was heading with the next question if the answer to the first was yes.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Working with Network Access Control Lists in Oracle 11g (part 1) Part 2: http://www.e-e.com/A_9074.html So, you upgraded to a shiny new 11g database and all of a sudden every program that used UTL_MAIL, UTL_SMTP, UTL_TCP, UTL_HTTP or any oth…
Subquery in Oracle: Sub queries are one of advance queries in oracle. Types of advance queries: •      Sub Queries •      Hierarchical Queries •      Set Operators Sub queries are know as the query called from another query or another subquery. It can …
This video shows, step by step, how to configure Oracle Heterogeneous Services via the Generic Gateway Agent in order to make a connection from an Oracle session and access a remote SQL Server database table.
This video shows how to recover a database from a user managed backup

895 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now