Offset and Limit for sql queries

Hello all,
Can anybody help me please...
i have used the offset and limit in postgres sql when we want to get only a number of rows starting from a particular row of a table. is there any similar things available in oracle.
Hope some one can help me soon...
Thanks and regards,
sreejesh Rajan,

use the following query to get records from 10th row to 14th row
select * from scott.emp where rownum < 15
minus
select * from scott.emp where rownum < 10

Similar Messages

JDBC Bound variable limit for sql queries

I need to know if there is a limit on the no of variables that can be bound using a prepared Statement ?
And somebody insisted that the bound variable limit is only when the variables belong to certain types of operators eg:
A query like this :
select * from table where column in(?, ?, ?.....)
cannot have more than 1000 variables but
a query like this
select * from table where column in(?, ?, ?) and column1=? and column2=? and column3=? ... and so on ..... can have more than 1000 bound variables ?
Also is this dependent on the driver or inherent to Oracle versions ?

Per the Oracle documentation:
Stage 5: Bind Any Variables At this point, Oracle knows the meaning of the SQL
statement but still does not have enough information to run the statement. Oracle
needs values for any variables listed in the statement; in the example, Oracle needs a
value for department_id. The process of obtaining these values is called binding
variables.
A program must specify the location (memory address) where the value can be found.
End users of applications may be unaware that they are specifying bind variables,
because the Oracle utility can simply prompt them for a new value.
Because you specify the location (binding by reference), you need not rebind the
variable before reexecution. You can change its value and Oracle looks up the value on
each execution, using the memory address.
bind variables are stored in the PGA if running a dedicated server. Shared servers use the SGA. The PGA is fixed and OS specific.

Gtksql pkgbuild. Simple GUI for sql queries.

This is simple program for running sql queries. I made this pkgbuild some time ago but I'm not sure how much it is good. Gtksql should support both mysql and postgresql but postgresql support is broken (probably to old). Developer promises a brand new gtk2 based application. We will see...
Since I can't make this pkgbuild any better I'm just posting it.
gtksql PKGBUILD
pkgname=gtksql
pkgver=0.4.2
pkgrel=1
pkgdesc="Gtk front-end for sql queries"
url="http://gtksql.sourceforge.net/"
depends=('lua' 'gtk')
makedepends=('mysql')
source=(http://dl.sourceforge.net/sourceforge/gtksql/$pkgname-$pkgver.tar.gz)
md5sums=('a0ba598027cd49f69f951a31342b51fd')
build() {
cd $startdir/src/$pkgname-$pkgver
./configure --prefix=/usr
--with-mysql
--with-lua
make || return 1
make prefix=$startdir/pkg/usr install

Hello:
I'm trying to do add a calculated variable to my view that isn't an Entity
Attribute, its simple really but i don't know if I'm leaving something out or
not.
I add the "new Attribute" , call it nCompleted, type - number
I then check off everything as is required(as documented in Help)
for an Sql Derived Attribute, the following code is entered in the
Expression Box :
Select group_services.office, count(client_group_services.clnt_group_services_id) as nCompleted
Where group_services_id=client_group_services_id(+)
And client_group_services_id.result="Completed";
It isn't working, what am I missing???? Sheena:
It probably isn't working because of missing 'group by' clause. I don't know the exact detail of your query statement, but suppose you want to count number of employees in a dept, then you're query should look like:
select dept.deptno, dept.dname, count(emp.empno) as nCount
   from dept, emp where dept.deptno = emp.deptno(+)
   group by dept.deptno, dept.dname // This group-by is important
OR if you want to use nested SELECT
select dept.deptno, dept.dname,
   (select count(emp.empno) from emp where dept.deptno=emp.deptno(+)) as nCount
   from dept

Datasource for SQL Queries

Hi,
SQL Server best practices indicates the use of Windows Authentication instead of Mixed Mode.
In this case, if you need to create reports that connect to the database,you need to add the users accessing the data source to the sql server security.
For reports that show error logs and table contents do you create a specific domain account for SQL queries and then specify it on the data source?
Thank you

Hi Pedro,
A report server uses credentials to connect to external data sources that provide content to reports or recipient information to a data-driven subscription. You can specify credentials that use Windows Authentication, database authentication, no authentication,
or custom authentication. When sending a connection request over the network, the report server will either impersonate a user account or the unattended execution account. For more information about the security context under which a connection request is
made, see
Data Source Configuration and Network Connections further on in this topic.
The network environment determines the kinds of connections you can support. By default, when you create an datasoource the credential is "Windows Authentication(Windows integrated security)", as you know, the user must has permission to the server
and database.
Each user must have a Windows account. It can be a local account (i.e., an account on the report server) or a trusted domain account. The account must be added as an allowed user to the report server either individually or as part of a group. Furthermore,
the client application must support Windows integrated security.
More details information please reference to below article:
Understanding SQL Server Reporting Services Authentication
Specify Credential and Connection Information for Report Data Sources
If you still have any problem, please feel free to ask.
Regards,
Vicky Liu
Vicky Liu
TechNet Community Support

What are the defaul username and password for SQL Plus ?

hello, what are the defaul username and password for SQL Plus ? i'm using the client 11.2.0.1

You'll need to download the full database installation files for the platform you are using. They are two .zip files, about 2.2 gig total.
I'm not going to give you the link because you should be able to find it easily. You have to read and accept the license agreement anyway.
When you install it, you'll be given several options about the type of database you want.
But before you install anything, you should read the installation manual for your platform.

Ruby code for sql queries

Hello everybody,
First off, let me apologize if my inquiry does not belong on this forum. I am confident however, that someone here has had experience with this since Oracle and ruby on rails/ruby are used frequently. My fingers are crossed, here's is my problem:
I am currently working on a database system that utilizes ruby on rails
with a oracle database. Here's the situation:
the ruby on rails web application is up and running;
my oracle database is full of tables that are populated with data;
there is a successful connection between rails and my oracle database;
however, what isn't finished is I currently have data mining queries in
sql (eg. find minimum time someone has been employed = "Select
min(time) from table...etc") and what I need to do is write one ruby
program for each of my sql queries so that the ruby program:
1) connects to the oracle database each time the query is called
2) runs the sql query on the oracle database
3) takes the results from the query and returns them in an array or
something of that nature (so that I can use the results in an html file
on the ruby on rails web application).
Again, I apologize if this question does not belong on this forum. If someone however has experience with this could you please give me example code of what this would look like (using different sql queries). Thank you

I apologize if this question does not belong on this forum. OTN does have a forum dedicated to Ruby/Ruby On Rails. I admit it doesn't seem to get much traffic. I think that's because most people working with Ruby tend to go for F/OSS products.
Cheers, APC
Blog : http://radiofreetooting.blogspot.com/

Need help for SQL Queries Tunning

hi all,
we have a procedure for search consumers, which using sql queries like:
SELECT TRIM (NAME) AS NAME, TRIM (accno) AS accno,
TRIM (connaddress) AS connaddress,
TRIM (CATEGORY) AS CATEGORY, TRIM (landmark) AS landmark,
SUBSTR (accno, 1, 3) AS subdivisionname
FROM consumermaster
WHERE LOWER (accno) LIKE
LOWER ('%' || NVL (caccno, '#noval#') || '%')
OR LOWER (NAME) LIKE LOWER ('%' || NVL (cname, '#noval#') || '%')
OR LOWER (connaddress) LIKE
LOWER ('%' || NVL (cadd, '#noval#') || '%')
OR phone LIKE '%' || NVL (cphone, '#noval#') || '%'
OR accno = (SELECT accno
FROM requestregistration
WHERE requestid = creqid)
UNION
SELECT TRIM (NAME) AS NAME, TRIM (accno) AS accno,
TRIM (connaddress) AS connaddress, TRIM (CATEGORY)
AS CATEGORY,
TRIM (landmark) AS landmark,
SUBSTR (accno, 1, 3) AS subdivisionname
FROM scodetails
WHERE LOWER (accno) LIKE
LOWER ('%' || NVL (caccno, '#noval#') || '%')
OR LOWER (NAME) LIKE LOWER ('%' || NVL (cname, '#noval#') || '%')
OR LOWER (connaddress) LIKE
LOWER ('%' || NVL (cadd, '#noval#') || '%')
OR phone LIKE '%' || NVL (cphone, '#noval#') || '%'
OR accno = (SELECT accno
FROM requestregistration
WHERE requestid = creqid);
it's ok for small tables but now data increase .......
searching method is very slow
now i want to tune this query for better performance
please sugg me best method
Thanks in advance
Regards
vij..

The link given by Asif should get you on the right track for tuning this query.
I just formatted your SQL:
SELECT Trim(NAME)        AS NAME,
       Trim(accno)       AS accno,
       Trim(connaddress) AS connaddress,
       Trim(category)    AS category,
       Trim(landmark)    AS landmark,
       Substr(accno,1,3) AS subdivisionname
FROM   consumermaster
WHERE Lower(accno) LIKE Lower('%'
                               ||Nvl(caccno,'#noval#')
                               ||'%')
        OR Lower(NAME) LIKE Lower('%'
                                  ||Nvl(cname,'#noval#')
                                  ||'%')
        OR Lower(connaddress) LIKE Lower('%'
                                         ||Nvl(cadd,'#noval#')
                                         ||'%')
        OR phone LIKE '%'
                      ||Nvl(cphone,'#noval#')
                      ||'%'
        OR accno = (SELECT accno
                    FROM   requestregistration
                    WHERE requestid = creqid)
UNION
SELECT Trim(NAME)        AS NAME,
       Trim(accno)       AS accno,
       Trim(connaddress) AS connaddress,
       Trim(category)    AS category,
       Trim(landmark)    AS landmark,
       Substr(accno,1,3) AS subdivisionname
FROM   scodetails
WHERE Lower(accno) LIKE Lower('%'
                               ||Nvl(caccno,'#noval#')
                               ||'%')
        OR Lower(NAME) LIKE Lower('%'
                                  ||Nvl(cname,'#noval#')
                                  ||'%')
        OR Lower(connaddress) LIKE Lower('%'
                                         ||Nvl(cadd,'#noval#')
                                         ||'%')
        OR phone LIKE '%'
                      ||Nvl(cphone,'#noval#')
                      ||'%'
        OR accno = (SELECT accno
                    FROM   requestregistration
                    WHERE requestid = creqid); You are using some function on almost each and every column in the where clause. Try getting rid of them as they are hindering the use of indexes, if any, on any of the columns.
Also the guidelines in the link provided are the best starting point.

Increase Performance and ROI for SQL Server Environments

May 2015
Explore
The Buzz from Microsoft Ignite 2015
NetApp was in full force at the recent Microsoft Ignite show in Chicago, talking about solutions for hybrid cloud, and our proven solutions for Microsoft SQL Server and other Microsoft applications.
Hot topics at the NetApp booth included:
OnCommand® Shift. A revolutionary technology that lets you move virtual machines back and forth between VMware and Hyper-V environments in minutes.
Azure Site Recovery to NetApp Private Storage. Replicate on-premises SAN-based applications to NPS for disaster recovery in the Azure cloud.
These tools give you greater flexibility for managing and protecting important business applications.
Chris Lemmons
Director, EIS Technical Marketing, NetApp
If your organization runs databases such as Microsoft SQL Server and Oracle DB, you probably know that these vendors primarily license their products on a "per-core" basis. Microsoft recently switched to "per-core" rather than "per-socket" licensing for SQL Server 2012 and 2014. This change can have a big impact on the total cost of operating a database, especially as core counts on new servers continue to climb. It turns out that the right storage infrastructure can drive down database costs, increase productivity, and put your infrastructure back in balance.
In many customer environments, NetApp has noticed that server CPU utilization is low—often on the order of just 20%. This is usually the result of I/O bottlenecks. Server cores have to sit and wait for I/O from hard disk drives (HDDs). We've been closely studying the impact of all-flash storage on SQL Server environments that use HDD-based storage systems. NetApp® All Flash FAS platform delivers world-class performance for SQL Server plus the storage efficiency, application integration, nondisruptive operations, and data protection of clustered Data ONTAP®, making it ideal for SQL Server environments.
Tests show that All Flash FAS can drive up IOPS and database server CPU utilization by as much as 4x. And with a 95% reduction in latency, you can achieve this level of performance with half as many servers. This reduces the number of servers you need and the number of cores you have to license, driving down costs by 50% or more and paying back your investment in flash in as little as six months.
Figure 1) NetApp All Flash FAS increases CPU utilization on your SQL Server database servers, lowering costs.
Source: NetApp, 2015
Whether you're running one of the newer versions of SQL Server or facing an upgrade of an earlier version, you can't afford not to take a second look at your storage environment.
End of Support for Microsoft SQL Server 2005 is Rapidly Approaching
Microsoft has set the end of extended support for SQL Server 2005 for April 2016—less than a year away. With support for Microsoft Windows 2003 ending in July 2015, time may already be running short.
If you're running Windows Server 2003, new server hardware is almost certainly needed when you upgrade SQL Server. Evaluate your server and storage options now to get costs under control.
Test Methodology
To test the impact of flash on SQL Server performance, we replaced a legacy HDD-based storage system with an All Flash FAS AFF8080 EX. The legacy system was configured with almost 150 HDDs, a typical configuration for HDD storage supporting SQL Server. The AFF8080 EX used just 48 SSDs.
Table 1) Components used in testing.
Test Configuration Components
Details
SQL Server 2014 servers
Fujitsu RX300
Server operating system
Microsoft Windows 2012 R2 Standard Edition
SQL Server database version
Microsoft SQL Server 2014 Enterprise Edition
Processors per server
2 6-core Xeon E5-2630 at 2.30 GHz
Fibre channel network
8Gb FC with multipathing
Storage controller
AFF8080 EX
Data ONTAP version
Clustered Data ONTAP® 8.3.1
Drive number and type
48 SSD
Source: NetApp, 2015
The test configuration consisted of 10 database servers connected through fibre channel to both the legacy storage system and the AFF8080 EX. Each of the 10 servers ran SQL Server 2014 Enterprise Edition.
The publicly available HammerDB workload generator was used to drive an OLTP-like workload simultaneously from each of the 10 database servers to storage. We first directed the workload to the legacy storage array to establish a baseline, increasing the load to the point where read latency consistently exceeded 20ms.
That workload was then directed at the AFF8080 EX. The change in storage resulted in an overall 20x reduction in read latency, a greater than 4x improvement in IOPS, and a greater than 4x improvement in database server CPU utilization.
Figure 2) NetApp All Flash FAS increases IOPS and server CPU utilization and lowers latency.
Source: NetApp, 2015
In other words, the database servers are able to process four times as many IOPS with dramatically lower latency. CPU utilization goes up accordingly because the servers are processing 4x the work per unit time.
The All Flash FAS system still had additional headroom under this load.
Calculating the Savings
Let's look at what this performance improvement means for the total cost of running SQL Server 2014 over a 3-year period. To do the analysis we used NetApp Realize, a storage modeling and financial analysis tool designed to help quantify the value of NetApp solutions and products. NetApp sales teams and partners use this tool to assist with return on investment (ROI) calculations.
The calculation includes the cost of the AFF8080 EX, eliminates the costs associated with the existing storage system, and cuts the total number of database servers from 10 to five. This reduces SQL Server licensing costs by 50%. The same workload was run with five servers and achieved the same results. ROI analysis is summarized in Table 2.
Table 2) ROI from replacing an HDD-based storage system with All Flash FAS, thereby cutting server and licensing costs in half.
Value
Analysis Results
ROI
65%
Net present value (NPV)
$950,000
Payback period
six months
Total cost reduction
More than $1 million saved over a 3-year analysis period compared to the legacy storage system
Savings on power, space, and administration
$40,000
Additional savings due to nondisruptive operations benefits (not included in ROI)
$90,000
Source: NetApp, 2015
The takeaway here is that you can replace your existing storage with All Flash FAS and get a big performance bump while substantially reducing your costs, with the majority of the savings derived from the reduction in SQL Server licensing costs.
Replace your existing storage with All Flash FAS and get a big performance bump while substantially reducing your costs.
Maximum SQL Server 2014 Performance
In addition to the ROI analysis, we also measured the maximum performance of the AFF8080 EX with SQL Server 2014. A load-generation tool was used to simulate an industry-standard TPC-E OLTP workload against an SQL Server 2014 test configuration.
A two-node AFF8080 EX achieved a maximum throughput of 322K IOPS at just over 1ms latency. For all points other than the maximum load point, latency was consistently under 1ms and remained under 0.8ms up to 180K IOPS.
Data Reduction and Storage Efficiency
In addition to performance testing, we looked at the overall storage efficiency savings of our SQL Server database implementation. The degree of compression that can be achieved is dependent on the actual data that is written and stored in the database. For this environment, inline compression was effective. Deduplication, as is often the case in database environments, provided little additional storage savings and was not enabled.
For the test data used in the maximum performance test, we measured a compression ratio of 1.5:1. We also tested inline compression on a production SQL Server 2014 data set to further validate these results and saw a 1.8:1 compression ratio.
Space-efficient NetApp Snapshot® copies provide additional storage efficiency benefits for database environments. Unlike snapshot methods that use copy-on-write, there is no performance penalty; unlike full mirror copies, NetApp Snapshot copies use storage space sparingly. Snapshot copies only consume a small amount of storage space for metadata and additional incremental space is consumed as block-level changes occur. In a typical real-world SQL Server deployment on NetApp storage, database volume Snapshot copies are made every two hours.
First introduced more than 10 years ago, NetApp FlexClone® technology also plays an important role in SQL Server environments. Clones are fully writable, and, similar to Snapshot copies, only consume incremental storage capacity. With FlexClone, you can create as many copies of production data as you need for development and test, reporting, and so on. Cloning is a great way to support the development and test work needed when upgrading from an earlier version of SQL Server. You'll sometimes see these types of capabilities referred to as "copy data management."
A Better Way to Run Enterprise Applications
The performance benefits that all-flash storage can deliver for database environments are significant: more IOPS, lower latency, and an end to near-constant performance tuning.
If you think the performance acceleration that comes with all-flash storage is cost prohibitive, think again. All Flash FAS doesn't just deliver a performance boost, it changes the economics of your operations, paying for itself with thousands in savings on licensing and server costs. In terms of dollars per IOPS, All Flash FAS is extremely economical relative to HDD.
And, because All Flash FAS runs NetApp clustered Data ONTAP, it delivers the most complete environment to support SQL Server and all your enterprise applications with capabilities that include comprehensive storage efficiency, integrated data protection, and deep integration for your applications.
For complete details on this testing look for NetApp TR-4303, which will be available in a few weeks. Stay tuned to Tech OnTap for more information as NetApp continues to run benchmarks with important server workloads including Oracle DB and server virtualization.
Learn more about NetApp solutions for SQL Server and NetApp All-flash solutions.
Quick Links
Tech OnTap Community
Archive
PDF

May 2015
Explore
The Buzz from Microsoft Ignite 2015
NetApp was in full force at the recent Microsoft Ignite show in Chicago, talking about solutions for hybrid cloud, and our proven solutions for Microsoft SQL Server and other Microsoft applications.
Hot topics at the NetApp booth included:
OnCommand® Shift. A revolutionary technology that lets you move virtual machines back and forth between VMware and Hyper-V environments in minutes.
Azure Site Recovery to NetApp Private Storage. Replicate on-premises SAN-based applications to NPS for disaster recovery in the Azure cloud.
These tools give you greater flexibility for managing and protecting important business applications.
Chris Lemmons
Director, EIS Technical Marketing, NetApp
If your organization runs databases such as Microsoft SQL Server and Oracle DB, you probably know that these vendors primarily license their products on a "per-core" basis. Microsoft recently switched to "per-core" rather than "per-socket" licensing for SQL Server 2012 and 2014. This change can have a big impact on the total cost of operating a database, especially as core counts on new servers continue to climb. It turns out that the right storage infrastructure can drive down database costs, increase productivity, and put your infrastructure back in balance.
In many customer environments, NetApp has noticed that server CPU utilization is low—often on the order of just 20%. This is usually the result of I/O bottlenecks. Server cores have to sit and wait for I/O from hard disk drives (HDDs). We've been closely studying the impact of all-flash storage on SQL Server environments that use HDD-based storage systems. NetApp® All Flash FAS platform delivers world-class performance for SQL Server plus the storage efficiency, application integration, nondisruptive operations, and data protection of clustered Data ONTAP®, making it ideal for SQL Server environments.
Tests show that All Flash FAS can drive up IOPS and database server CPU utilization by as much as 4x. And with a 95% reduction in latency, you can achieve this level of performance with half as many servers. This reduces the number of servers you need and the number of cores you have to license, driving down costs by 50% or more and paying back your investment in flash in as little as six months.
Figure 1) NetApp All Flash FAS increases CPU utilization on your SQL Server database servers, lowering costs.
Source: NetApp, 2015
Whether you're running one of the newer versions of SQL Server or facing an upgrade of an earlier version, you can't afford not to take a second look at your storage environment.
End of Support for Microsoft SQL Server 2005 is Rapidly Approaching
Microsoft has set the end of extended support for SQL Server 2005 for April 2016—less than a year away. With support for Microsoft Windows 2003 ending in July 2015, time may already be running short.
If you're running Windows Server 2003, new server hardware is almost certainly needed when you upgrade SQL Server. Evaluate your server and storage options now to get costs under control.
Test Methodology
To test the impact of flash on SQL Server performance, we replaced a legacy HDD-based storage system with an All Flash FAS AFF8080 EX. The legacy system was configured with almost 150 HDDs, a typical configuration for HDD storage supporting SQL Server. The AFF8080 EX used just 48 SSDs.
Table 1) Components used in testing.
Test Configuration Components
Details
SQL Server 2014 servers
Fujitsu RX300
Server operating system
Microsoft Windows 2012 R2 Standard Edition
SQL Server database version
Microsoft SQL Server 2014 Enterprise Edition
Processors per server
2 6-core Xeon E5-2630 at 2.30 GHz
Fibre channel network
8Gb FC with multipathing
Storage controller
AFF8080 EX
Data ONTAP version
Clustered Data ONTAP® 8.3.1
Drive number and type
48 SSD
Source: NetApp, 2015
The test configuration consisted of 10 database servers connected through fibre channel to both the legacy storage system and the AFF8080 EX. Each of the 10 servers ran SQL Server 2014 Enterprise Edition.
The publicly available HammerDB workload generator was used to drive an OLTP-like workload simultaneously from each of the 10 database servers to storage. We first directed the workload to the legacy storage array to establish a baseline, increasing the load to the point where read latency consistently exceeded 20ms.
That workload was then directed at the AFF8080 EX. The change in storage resulted in an overall 20x reduction in read latency, a greater than 4x improvement in IOPS, and a greater than 4x improvement in database server CPU utilization.
Figure 2) NetApp All Flash FAS increases IOPS and server CPU utilization and lowers latency.
Source: NetApp, 2015
In other words, the database servers are able to process four times as many IOPS with dramatically lower latency. CPU utilization goes up accordingly because the servers are processing 4x the work per unit time.
The All Flash FAS system still had additional headroom under this load.
Calculating the Savings
Let's look at what this performance improvement means for the total cost of running SQL Server 2014 over a 3-year period. To do the analysis we used NetApp Realize, a storage modeling and financial analysis tool designed to help quantify the value of NetApp solutions and products. NetApp sales teams and partners use this tool to assist with return on investment (ROI) calculations.
The calculation includes the cost of the AFF8080 EX, eliminates the costs associated with the existing storage system, and cuts the total number of database servers from 10 to five. This reduces SQL Server licensing costs by 50%. The same workload was run with five servers and achieved the same results. ROI analysis is summarized in Table 2.
Table 2) ROI from replacing an HDD-based storage system with All Flash FAS, thereby cutting server and licensing costs in half.
Value
Analysis Results
ROI
65%
Net present value (NPV)
$950,000
Payback period
six months
Total cost reduction
More than $1 million saved over a 3-year analysis period compared to the legacy storage system
Savings on power, space, and administration
$40,000
Additional savings due to nondisruptive operations benefits (not included in ROI)
$90,000
Source: NetApp, 2015
The takeaway here is that you can replace your existing storage with All Flash FAS and get a big performance bump while substantially reducing your costs, with the majority of the savings derived from the reduction in SQL Server licensing costs.
Replace your existing storage with All Flash FAS and get a big performance bump while substantially reducing your costs.
Maximum SQL Server 2014 Performance
In addition to the ROI analysis, we also measured the maximum performance of the AFF8080 EX with SQL Server 2014. A load-generation tool was used to simulate an industry-standard TPC-E OLTP workload against an SQL Server 2014 test configuration.
A two-node AFF8080 EX achieved a maximum throughput of 322K IOPS at just over 1ms latency. For all points other than the maximum load point, latency was consistently under 1ms and remained under 0.8ms up to 180K IOPS.
Data Reduction and Storage Efficiency
In addition to performance testing, we looked at the overall storage efficiency savings of our SQL Server database implementation. The degree of compression that can be achieved is dependent on the actual data that is written and stored in the database. For this environment, inline compression was effective. Deduplication, as is often the case in database environments, provided little additional storage savings and was not enabled.
For the test data used in the maximum performance test, we measured a compression ratio of 1.5:1. We also tested inline compression on a production SQL Server 2014 data set to further validate these results and saw a 1.8:1 compression ratio.
Space-efficient NetApp Snapshot® copies provide additional storage efficiency benefits for database environments. Unlike snapshot methods that use copy-on-write, there is no performance penalty; unlike full mirror copies, NetApp Snapshot copies use storage space sparingly. Snapshot copies only consume a small amount of storage space for metadata and additional incremental space is consumed as block-level changes occur. In a typical real-world SQL Server deployment on NetApp storage, database volume Snapshot copies are made every two hours.
First introduced more than 10 years ago, NetApp FlexClone® technology also plays an important role in SQL Server environments. Clones are fully writable, and, similar to Snapshot copies, only consume incremental storage capacity. With FlexClone, you can create as many copies of production data as you need for development and test, reporting, and so on. Cloning is a great way to support the development and test work needed when upgrading from an earlier version of SQL Server. You'll sometimes see these types of capabilities referred to as "copy data management."
A Better Way to Run Enterprise Applications
The performance benefits that all-flash storage can deliver for database environments are significant: more IOPS, lower latency, and an end to near-constant performance tuning.
If you think the performance acceleration that comes with all-flash storage is cost prohibitive, think again. All Flash FAS doesn't just deliver a performance boost, it changes the economics of your operations, paying for itself with thousands in savings on licensing and server costs. In terms of dollars per IOPS, All Flash FAS is extremely economical relative to HDD.
And, because All Flash FAS runs NetApp clustered Data ONTAP, it delivers the most complete environment to support SQL Server and all your enterprise applications with capabilities that include comprehensive storage efficiency, integrated data protection, and deep integration for your applications.
For complete details on this testing look for NetApp TR-4303, which will be available in a few weeks. Stay tuned to Tech OnTap for more information as NetApp continues to run benchmarks with important server workloads including Oracle DB and server virtualization.
Learn more about NetApp solutions for SQL Server and NetApp All-flash solutions.
Quick Links
Tech OnTap Community
Archive
PDF

What is my login and password for SQL PLUS

I've downloaded and installed a custom version of Oracle 9i Database Release 2, when I open up SQL PLUS, I don't know whats my username and password, if I use the username and password I use to download other software from this website, it's giving me an "Operation Times out Error", kindly help me out with my username and password.
Thanks
Cliff

Hi,
I've downloaded and installed a custom version of Oracle 9i Database Release 2, when I open up SQL PLUS, I don't know whats my username and password, if I use the username and password I use to download other software from this website, it's giving me an "Operation Times out Error", kindly help me out with my username and password.
The default password for SYS is CHANGE_ ON_INSTALL, whereas the default password for SYSTEM is MANAGER.
- Pavan Kumar N

Load balancing and clustering for SQL SERVER ANALYSIS SERVER instances to access large number of concurrent users for bi site

HI
how to do analysis server clustering
we have sharepoint bi site and we published many dashboards pointers ,filters kpis
and at a time some 200 to 300 concurrent users access these dashboards pages
so for maintain this requirement how we apply clustering for ssas intances
and also it has load balancing
adil

Hi Adil,
According to your description, you want to implement SQL Server Analysis Services Clusster and Analysis Services Load Balancing, right?
In SSAS, we can design highly available solutions in Analysis Services by using: network load balancing (NLB) technologies, failover clustering technologies, or both. For the details about implemention, please refer to the links below.
http://msdn.microsoft.com/en-us/library/dn736073.aspx
http://sqlsrvanalysissrvcs.codeplex.com/wikipage?title=Analysis%20Services%20Load%20Balancing
http://technet.microsoft.com/en-us/library/bb500217(v=sql.105).aspx
Regards,
Charlie Liao
TechNet Community Support

Extensive IO and CPU for simple queries

Hi,
I have a machine using oracle 9.2.0 and solaris 10.
For every simple queries, it very big IO and a lot of CPU. This is only happend on one particular machine(We have same version db and soalris on other mahcine and it works fine).
One example queris is when I use Enterprise Manager to get the "configuration" information of the instance,it use 50% IO. I get the trace file and tkprof as following:
SELECT UNIQUE sp.name, sp.sid, DECODE(p.type, 1, 'Boolean', 2, 'String', 3,'Integer', 4, 'Filename', ' '), sp.value, p.issys_modifiable, p.description FROM v$spparameter sp, v$parameter p WHERE sp.name = p.name ORDER BY sp.name,sp.sid
call count cpu elapsed disk query current rows
Parse 4 0.02 0.01 0 0 0 0
Execute 4 0.00 0.00 0 0 0 0
Fetch 9 4.36 34.12 7980 0 0 783
total 17 4.38 34.13 7980 0 0 783
Misses in library cache during parse: 1
Optimizer mode: ALL_ROWS
Parsing user id: 5 (SYSTEM)
Rows Row Source Operation
261 SORT UNIQUE (cr=0 pr=0 pw=0 time=1214116 us)
261 HASH JOIN (cr=0 pr=0 pw=0 time=1221296 us)
361485 MERGE JOIN CARTESIAN (cr=0 pr=0 pw=0 time=370609 us)
261 FIXED TABLE FULL X$KSPSPFILE (cr=0 pr=0 pw=0 time=19777 us)
361485 BUFFER SORT (cr=0 pr=0 pw=0 time=6413 us)
1385 FIXED TABLE FULL X$KSPPCV (cr=0 pr=0 pw=0 time=4180 us)
1379 FIXED TABLE FULL X$KSPPI (cr=0 pr=0 pw=0 time=7001 us)
It seems Oracle FTS the X$KSPPCV and X$KSPPI.
Can anybody give me some suggestion to improve the performance?
thanks.

Is there a difference in the query plans on the two machines?
Did you analyze the SYS and SYSTEM schemas on one system and not the other?
Are there different initialization parameters on the two machines?
What do you mean by "it use 50% IO"? I'm not sure what that means and I'm not sure how you're measuring that.
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

Default USR and PW for SQL Studio

I've searched the archives and not found the correct answer to this question. Have both MaxDB and Db manager 7.4 up and going with no problems. Installed the SQL Studio and it did not ask for pw, etc. The dbname is SDB. The default usr/pw for the manager is "control". I've tried the following in Studio so far;
control/control
SUPERDBA/admin
SAPSDBDB/SAPSDBDB
Any other suggestions or a pointer to where I might look?
Thanks,
Bob

Peter,
Guess I didn't explain my issue. The svr and db are registered. I can see the avialable info in Db Manager with no issues.
I created a new account in the DB Manager which I originally entere using the default pw.
However, when I open SQL Studio and attempt to connect, a logon dialog appears. None of the known usr/pw combo's work there. That is my issue. How to I create these in Studio, or what is the default?
I agree entirely about posting pw. The first thing a person should do when installing software, is to change the default pw. Our auditors check that frequently.
Thanks,
Bob

Collation problem for sql queries

Hi All,
We have 1 old database which have collation "Latin1_General_100_CI_AS".
We have moved this DB to other server & on for this DB collation is "Latin1_General_100_CS_AS"
There are lots of SQL procedure we had written & all table,field name in case insensitive manner.
so for new db it will give us error invalid object name because this db is set as "Latin1_General_100_CS_AS".
Now we can not change the collation of db.
so please know us how we can achive case insensitivity for object name in query for "Latin1_General_100_CS_AS" collation.
please help us we are stucked in big issue & it is not easy to change Store procedure as Senstive name of object.

Anybody have another suggestion for JK?
Thanks!
Ed Price, Azure & Power BI Customer Program Manager (Blog,
Small Basic,
Wiki Ninjas,
Wiki)
Answer an interesting question?
Create a wiki article about it!

Setting a time out limit for OBIEE Queries

Hi Experts,
I am using OBIEE 11g. I have a scenario where I have to cancell a query if the query runs for more than 15 mins to fetch the data. The requirement is if the query takes longer than 15 mins the query to the database should be cancelled and in the OBIEE answers it should show the query cancelled message. Even if we are not able to show the exact message in answers is fine. But the front end and backend query must be cancelled after running for 15 mins.
Any help on this would be highly appreciated. Thanks in Advance.
Satyabrat

Hi,
Please try the following:
Add the below code in instanceconfig.xml
To set time to expire for Idle Oracle BI Presentation services Client connections.
<ConnectionExpireMinutes>Number of Minutes</ConnectionExpireMinutes>
Setting the Time to Expire for Oracle BI Presentation Services Client Sessions
<ClientSessionExpireMinutes>Number of Minutes</ClientSessionExpireMinutes>
And also try in RPD
Go to Manage-->Identity-->Application Roles
Select the ROLE and click on the permissions tab.
In the next wizard go to the “Query limits” tab.
Against the database row set the following values
Max Time Minutes=20
Status Max Time=Enable
For Custom messages for the error message:
Find error webmessage template and rewrite it in customMessages. For example:
<WebMessage name="kmsgCatalogAccessDenied" exception="true">
<TEXT>Отказ в доступе на <sawm:param insert="2"/> пользователю <sawm:param insert="3"/> по пути <sawm:param insert="1"/>.</TEXT>
</WebMessage>
Found this in catalogmessages.xml. Then I created file custommessages.xml in msgdb\customMessages:
<?xml version="1.0" encoding="utf-8" ?>
<WebMessageTables xmlns:sawm="com.siebel.analytics.web/message/v1">
<WebMessageTable system="CustomMessages">
<WebMessage name="kmsgCatalogAccessDenied" exception="true"><TEXT>Some other error message</TEXT></WebMessage>
</WebMessageTable>
</WebMessageTables>
It's possible not to show error message code.
There are a lot of perfect examples in the documentation.
Also Please refer the below link:
http://sranka.wordpress.com/2008/05/23/style-sheet-changes-custom-look-and-feel-in-obiee/
This should resolve your problem
Regards
MuRam

User Name and Password for SQL*Plus

Please tell me how can I the right user name in password in the SQLPLUS

Hi !
Well .. if you forgot password you should connect to sys user ( you must know the pass for sys - or if db is runing on your pc , you can connect through os authentication ) then
you should change password for your user ..
T

Offset and Limit for sql queries

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