Maximum number of connections that database can make

Dear All,
I have a problem regarding maximum number of database connections that can be handled .
Theoretically i am aware that the number of sessions we set in init ora settings tells me the maximum
connections that can be opened.but this number will be also be dependent on the capability of the OS to handle the sessions.
is there any way i can analyse the number of possible connections possible if I have the OS memory and CPU parameters with me
Regards

http://books.google.com/books?id=TmPoYfpeJAUC&pg=PA129&lpg=PA129&dq=.5mb+for+each+db+session+oracle&source=web&ots=RzRe2s2AYy&sig=zmO-RBoCEuWQzaZhOIN122Serzk&hl=en&sa=X&oi=book_result&resnum=5&ct=result#PPA122,M1.
This is from expert oracle database architecture by tom kytes and I personally ran some queries to confirm that.
Edited by: OrionNet on Nov 30, 2008 11:51 PM

Similar Messages

Problem with reached maximum number of connections to database

Dear Experts,
Our Production system was not responding properly last week.
The below was the reply from the Basis team.
"It seems that we have again problem with reached maximum number of connections to database. We have extended this number to 100 this year and now it seems that it’s not enough again. It seems that something is running on Production, which takes over too many connections."
They have increased the number to 200 as a work around.
Do we have any means to find out, which component or application is causing the issue.
Please advise me if any better way is available to correct the issue.
Please see the below trace.
From default trace:
======
Caused by: com.sap.engine.services.dbpool.exceptions.BaseSQLException: ResourceException occurred in method ConnectionFactoryImpl.getConnection(): javax.resource.R
esourceException: (Failed in component: dbpool, BC-JAS-TRH) Cannot create connection. Possible reasons: 1)Maximum allowed connections to DB or EIS is reached. You
can apply CSN Note 719778 in order to check and resolve connection leaks. 2) Configuration to DB/EIS is wrong or DB/EIS is temporary unreachable. 3) Connections ar
e not enough for current load.
        at com.sap.engine.services.dbpool.cci.ConnectionFactoryImpl.getConnection(ConnectionFactoryImpl.java:60)
        at com.sap.security.core.persistence.datasource.imp.J2EEConnectionPool.getConnection(J2EEConnectionPool.java:205)
        ... 61 more
Caused by: javax.resource.ResourceException: (Failed in component: dbpool, BC-JAS-TRH) Cannot create connection. Possible reasons: 1)Maximum allowed connections to
DB or EIS is reached. You can apply CSN Note 719778 in order to check and resolve connection leaks. 2) Configuration to DB/EIS is wrong or DB/EIS is temporary unr
eachable. 3) Connections are not enough for current load.
        at com.sap.engine.services.connector.jca.ConnectionHashSet.match(ConnectionHashSet.java:230)
        at com.sap.engine.services.connector.jca.ConnectionManagerImpl.allocateConnection(ConnectionManagerImpl.java:343)
        at com.sap.engine.services.connector.jca.ShareableConnectionManager.allocateConnection(ShareableConnectionManager.java:54)
        at com.sap.engine.services.dbpool.cci.ConnectionFactoryImpl.getConnection(ConnectionFactoryImpl.java:52)
        ... 62 more
Caused by: com.sap.engine.services.dbpool.exceptions.BaseResourceException: SQLException is thrown by the pooled connection: com.sap.sql.log.OpenSQLException: No c
onnection to data source SAPEPPDB available. All 100 pooled connections are in use and 70 connection requests are currently waiting. The connection pool size might
need to be adjusted.
        at com.sap.engine.services.dbpool.spi.ManagedConnectionFactoryImpl.createManagedConnection(ManagedConnectionFactoryImpl.java:192)
        at com.sap.engine.services.connector.jca.ConnectionHashSet.match(ConnectionHashSet.java:221)
        ... 65 more
Caused by: com.sap.sql.log.OpenSQLException: No connection to data source SAPEPPDB available. All 100 pooled connections are in use and 70 connection requests are
currently waiting. The connection pool size might need to be adjusted.
======
Thanks and Kind Regards,
Jelbin

Stop all instances(including DB) and start again, Hope it should work.
It may happened that jar has not been synchronized with the database and may be version mismatch with the java.
719778 - Data Source fails to return connection
1650472 - Transactions are interrupted due to database connection periodically failing to establish
1138877 - How to Deploy External Drivers JDBC/JMS Adapters
Change the connection pool so that it can connect to DB as per the note 719778
Regards
Vijay Kalluri

Is there a maximum number of plugins that LR5 can manage?

Does anyone know if LR5 has a maximum number of plugins it can manage.
I am using Portrait Pro and the Nik suite out of that mix one always gets bumped from the list when used.

Thanks for taking your time with this beyond the esential question.
I did mean preferences.
The buggy software seems to be Portrait Pro or one of Nik programs.
To use Portrait Pro I select it by:
LR>Preferences>external editor>choose>”PortraitProfessionalStudio.app"
If I start by using Portrait Pro on a photo I follow:
Edit in>Portrait Pro
Up until this point everything works fine. No worries.
However, as soon as I use one of the Nik software programs, Portrait Pro is removed from as the external editor and replaced by the which ever Nik program I use.
This phenomena does not happen any other plug in except for the Nik suite.
So, either Nik somehow removes Portrait Pro or Portrait Pro has something within it’s coding that allows it to be removed as the external editor and no longer viable unless I go back to Preferences and repeat the steps:
LR>Preferences>external editor>choose>”PortraitProfessionalStudio.app”
Of course, Nik says it is a flaw with Portrait Pro and Portrait Pro says it is a flaw with Nik (shocker), but such is life

What is the maximum number of files that Finder can display in a directory?

When displaying systems in an Active Directory domain, Finder only displays some of the systems.
I presume that Finder is treating the list of SMB/CIFS systems as if they were entries in a file directory. The number of systems that should appear in the list is around 10,000 but only about half of these are displayed in Finder.
Is there a way to increase the number of systems displayed in Finder?

Yes, I am working with a Windows Active Directory domain.
When using Finder>Network> to display systems in an Active Directory domain, it fails to display all of the systems. Is there a Finder limitation that causes this?
When the system was originally brought online, only the local systems that were members of the Active Directory domain were displayed. Over time, the number of systems that have been "discovered" has increased. The entries are maintained in ascending alphabetical order. Currently, only systems with names beginnig with A through M are listed.
This creates a bit of a problem for our Technical Publications group as all of the systems in our facility start with the letter T.
Does Finder have a limit on how many entries that it can display for a given directory?
Is the list of Active Directory systems being maintained in memory and, hence, limited by memory resources?
Is there a way to filter the list?

Is there a maximum number of printers that iOS can address/list?

A school client of ours has raised this question regarding their iPads, and I can't find an answer anywhere (they believe the limit is eleven printers): can anyone come up with a definitive number?
TIA,
Paul.

Thanks for taking your time with this beyond the esential question.
I did mean preferences.
The buggy software seems to be Portrait Pro or one of Nik programs.
To use Portrait Pro I select it by:
LR>Preferences>external editor>choose>”PortraitProfessionalStudio.app"
If I start by using Portrait Pro on a photo I follow:
Edit in>Portrait Pro
Up until this point everything works fine. No worries.
However, as soon as I use one of the Nik software programs, Portrait Pro is removed from as the external editor and replaced by the which ever Nik program I use.
This phenomena does not happen any other plug in except for the Nik suite.
So, either Nik somehow removes Portrait Pro or Portrait Pro has something within it’s coding that allows it to be removed as the external editor and no longer viable unless I go back to Preferences and repeat the steps:
LR>Preferences>external editor>choose>”PortraitProfessionalStudio.app”
Of course, Nik says it is a flaw with Portrait Pro and Portrait Pro says it is a flaw with Nik (shocker), but such is life

What is the maximum number of devices that can be connected with FaceTime?

I have tried to find in theh Apple web pages the maximum number of devices that one can connect to with FaceTime. Specifically, how many iPad2 or iPad (new) devices can connect to each other with FaceTime? What about an older iMac running Mountain Lion with iPads? Or, iPhone4s and iPads? Thanks for any information you can provide.

I don't know of any limit, as long as each device has its own individual identification ( e-mail address, or phone number for iphones)

What is the maximum number of users that can be simultaneously connected to a shared drive on an Airport Extreme

What is the maximum number of users that can be simultaneously connected to a shared drive on an Airport Extreme?

50
I haven't tried this, but imagine that things are going to be quite slow.

Windows Azure Active Directory MA - Maximum number of items that can be serialized or deserialized in an object graph is '500000'. Change the object graph or increase the MaxItemsInObjectGraph quota.

Trying to use WAAD with FIM 2010 R2 SP1 (4.1.3496.0) and during export several objects cause a warning/info with:
Maximum number of items that can be serialized or deserialized in an object graph is '500000'. Change the object graph or increase the MaxItemsInObjectGraph quota.
I looked, this appears hard coded into the MA, anyone know what causes this? My best guess is something like a large group membership? Does anyone know what the limits around the WAAD MA are?
Here is the indepth error logged during the failure:
ProvisioningServiceAdapter::ExecuteWithRetry: Action: Export, Attempt: 0, Exception: Microsoft.Online.Coexistence.ProvisionRetryException: Unable to communicate with the Windows Azure Active Directory service. Tracking ID: e94e6020-8434-4aa7-9a29-b2edf7fe6b2e
See the event log for more details. ---> System.ServiceModel.CommunicationException: There was an error while trying to serialize parameter http://schemas.microsoft.com/online/aws/change/2010/01:syncObjects. The InnerException message was 'Maximum number
of items that can be serialized or deserialized in an object graph is '500000'. Change the object graph or increase the MaxItemsInObjectGraph quota. '. Please see InnerException for more details. ---> System.Runtime.Serialization.SerializationException:
Maximum number of items that can be serialized or deserialized in an object graph is '500000'. Change the object graph or increase the MaxItemsInObjectGraph quota.
   at System.Runtime.Serialization.XmlObjectSerializerContext.IncrementItemCount(Int32 count)
   at WriteArrayOfstringToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , CollectionDataContract )
   at System.Runtime.Serialization.CollectionDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeAndVerifyType(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, Boolean verifyKnownType, RuntimeTypeHandle declaredTypeHandle, Type declaredType)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithXsiType(XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle objectTypeHandle, Type objectType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle, Type
declaredType)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerialize(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerializeReference(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)
   at WriteSyncObjectGroupToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , ClassDataContract )
   at System.Runtime.Serialization.ClassDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeAndVerifyType(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, Boolean verifyKnownType, RuntimeTypeHandle declaredTypeHandle, Type declaredType)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithXsiType(XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle objectTypeHandle, Type objectType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle, Type
declaredType)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerialize(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)
   at System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerializeReference(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle)
   at WriteArrayOfSyncObjectToXml(XmlWriterDelegator , Object , XmlObjectSerializerWriteContext , CollectionDataContract )
   at System.Runtime.Serialization.CollectionDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context)
   at System.Runtime.Serialization.DataContractSerializer.InternalWriteObjectContent(XmlWriterDelegator writer, Object graph, DataContractResolver dataContractResolver)
   at System.Runtime.Serialization.DataContractSerializer.InternalWriteObject(XmlWriterDelegator writer, Object graph, DataContractResolver dataContractResolver)
   at System.Runtime.Serialization.XmlObjectSerializer.WriteObjectHandleExceptions(XmlWriterDelegator writer, Object graph, DataContractResolver dataContractResolver)
   at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.SerializeParameterPart(XmlDictionaryWriter writer, PartInfo part, Object graph)
   --- End of inner exception stack trace ---
Server stack trace:
   at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.SerializeParameterPart(XmlDictionaryWriter writer, PartInfo part, Object graph)
   at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.SerializeParameter(XmlDictionaryWriter writer, PartInfo part, Object graph)
   at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.SerializeParameters(XmlDictionaryWriter writer, PartInfo[] parts, Object[] parameters)
   at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.SerializeBody(XmlDictionaryWriter writer, MessageVersion version, String action, MessageDescription messageDescription, Object returnValue, Object[] parameters, Boolean
isRequest)
   at System.ServiceModel.Dispatcher.OperationFormatter.OperationFormatterMessage.OperationFormatterBodyWriter.OnWriteBodyContents(XmlDictionaryWriter writer)
   at System.ServiceModel.Channels.Message.OnWriteMessage(XmlDictionaryWriter writer)
   at System.ServiceModel.Channels.BufferedMessageWriter.WriteMessage(Message message, BufferManager bufferManager, Int32 initialOffset, Int32 maxSizeQuota)
   at System.ServiceModel.Channels.BinaryMessageEncoderFactory.BinaryMessageEncoder.WriteMessage(Message message, Int32 maxMessageSize, BufferManager bufferManager, Int32 messageOffset)
   at System.ServiceModel.Channels.HttpOutput.SerializeBufferedMessage(Message message)
   at System.ServiceModel.Channels.HttpOutput.Send(TimeSpan timeout)
   at System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelRequest.SendRequest(Message message, TimeSpan timeout)
   at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
   at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
   at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
   at Microsoft.Online.Coexistence.Schema.IProvisioningWebService.Provision(SyncObject[] syncObjects)
   at Microsoft.Online.Coexistence.ProvisionHelper.InvokeAwsAPI[T](Func`1 awsOperation, String opsLabel)
   --- End of inner exception stack trace ---
   at Microsoft.Online.Coexistence.ProvisionHelper.CommunicationExceptionHandler(CommunicationException ex)
   at Microsoft.Online.Coexistence.ProvisionHelper.InvokeAwsAPI[T](Func`1 awsOperation, String opsLabel)
   at Microsoft.Azure.ActiveDirectory.Connector.ProvisioningServiceAdapter.<>c__DisplayClass1.<Export>b__0()
   at Microsoft.Azure.ActiveDirectory.Connector.ProvisioningServiceAdapter.ExecuteWithRetry(String actionName, Action action).

Hi gdedshg,
>>Maximum number of items that can be serialized or deserialized in an object graph is '65536'. Change the object graph or increase the MaxItemsInObjectGraph quota
When meet the above exception, please try to do the following configuration:
On the server side:
Add the following to the server's config file:
<behaviors>
<serviceBehaviors>
<behavior name="MyServiceBehavior">
<dataContractSerializer
maxItemsInObjectGraph="2147483647" />
</behavior>
</serviceBehaviors>
</behaviors>
And reference it in the service using the following code:
<services>
<service
behaviorConfiguration="MyServiceBehavior"
name="serviceName">……
On the client side:
Add the following:
<behaviors>
<endpointBehaviors>
<behavior name="MyClientbehavior">
<dataContractSerializer
maxItemsInObjectGraph="2147483647"/>
</behavior>
</endpointBehaviors>
</behaviors>
And reference it in the endpoint using the following code:
<endpoint address="serviceAddress"
behaviorConfiguration="MyClientbehavior"
For more information, please try to refer to the following article:
http://blog.aggregatedintelligence.com/2011/01/wcf-maxitemsinobjectgraph-error.html .
Best Regards,
Amy Peng
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click
HERE to participate the survey.

Maximum number of cookies that can be stored

hi,
i would like to know what is the maximum number of cookies that can be stored in a browser or in a client machine? moreover i would like to know the disadavantage of using cookies?
can anybody please help me in this.
thank u in advance.
Fazlina

An extract from the web site http://www.ulct.org/resources/staff_notes/list/071201_cookies.html
- A maximum of 300 cookies can be stored on the user's system.
- No cookie can be larger than 4 kilobytes.
- No server or domain can place more than 20 cookies on a user's system. (One website can't hog all 300 cookies.)
- If you go beyond the maximum, the browser will just discard old cookies to make room for the new ones.
vj

Maximum number of items that can be serialized or deserialized in an object graph is '65536'.

I meet the this error:
Maximum number of items that can be serialized or deserialized in an object graph is '65536'. Change the object graph or increase the MaxItemsInObjectGraph quota.
How to solve the above error?

Hi gdedshg,
>>Maximum number of items that can be serialized or deserialized in an object graph is '65536'. Change the object graph or increase the MaxItemsInObjectGraph quota
When meet the above exception, please try to do the following configuration:
On the server side:
Add the following to the server's config file:
<behaviors>
<serviceBehaviors>
<behavior name="MyServiceBehavior">
<dataContractSerializer
maxItemsInObjectGraph="2147483647" />
</behavior>
</serviceBehaviors>
</behaviors>
And reference it in the service using the following code:
<services>
<service
behaviorConfiguration="MyServiceBehavior"
name="serviceName">……
On the client side:
Add the following:
<behaviors>
<endpointBehaviors>
<behavior name="MyClientbehavior">
<dataContractSerializer
maxItemsInObjectGraph="2147483647"/>
</behavior>
</endpointBehaviors>
</behaviors>
And reference it in the endpoint using the following code:
<endpoint address="serviceAddress"
behaviorConfiguration="MyClientbehavior"
For more information, please try to refer to the following article:
http://blog.aggregatedintelligence.com/2011/01/wcf-maxitemsinobjectgraph-error.html .
Best Regards,
Amy Peng
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click
HERE to participate the survey.

Maximum number of photos that can be imported into an iPhoto library?

1. Does iPhoto have a maximum number of files or photos that it can handle in a single library?
I have a lot of photos (20GB) that have not yet been imported into an iPhoto Library. I am going to set up a new library with the iPhoto Library Manager (iPLM), but am wondering if there is a maximum number of files that can be handled in a single library?
2. Also, I don't think I want to import these, since that would create an iPhoto library as large as the source files. Are there any problems if I set up the preferences so that this library will not have the graphics imported into it?
3. With iPLM, can you have different sets of preferences for each library?
Thank you for any advice or suggestions.

1. Does iPhoto have a maximum number of files or photos that it can handle in a single library?
Apple advertises that iPhoto will handle 250,000 photos - I doubt that anyone has come close to that (or will)
I have 19,278 in 237 events - 22 GB - on a G5 iMac and it is snappy with no issues
I have a lot of photos (20GB) that have not yet been imported into an iPhoto Library. I am going to set up a new library with the iPhoto Library Manager (iPLM), but am wondering if there is a maximum number of files that can be handled in a single library?
If you want those should be fine in one library
2. Also, I don't think I want to import these, since that would create an iPhoto library as large as the source files. Are there any problems if I set up the preferences so that this library will not have the graphics imported into it?
It is a choice - if you do NOT import them then you will be responsible for all future management - deleting, etc. Moving to a different location or computer is much more difficult if you reference your photos instead of importing them.
Many people import them, burn the original source photos to CD or DVD and delete them from their disk letting iPhoto manage them
3. With iPLM, can you have different sets of preferences for each library?
I'm not sure but I do not think so
Larry Nebel
Message was edited by: LarryHN

I am trying to connect my Sony DCR-TRV350 to iMovie so that I can make DVD's from family videos. I am having problems getting the video camera connected. Any advice on how to do this?

I am trying to connect my Sony DCR-TRV350 to iMovie so that I can make DVD's from family videos. I am having problems getting the video camera connected. Any advice on how to do this?

What happens when, after you connect your cam, you go to File > Import Media?
But before that, does your cam require you to export your video files upon USB connection? I have a JVC Everio HD and I have to "Export to Library" from the cam's menu first-thing. This was true even in prior iMovie versions.

Is there a limit or maximum number of pages that can be in one document?

Is ther a maximum number of pages that can be created in one document?

There is a maximum number of pages that can be safely created, what exactly that is is not defined, but when you get into hundreds of pages with lots of graphics, that starts getting hairy.
It would be safer to break up your document into smaller parts and only assemble them at the end.
Peter

Maximum number of tables that can be outer joined with one table in a query

Hi All,
Iam new to sql, so can you please let me know What is the maximum number of tables that can be outer joined with one table in a query?
Thanks,
Srini

srinu2 wrote:
Iam new to sql, so can you please let me know What is the maximum number of tables that can be outer joined with one table in a query?
There is no limit to the number of tables you can outer join as long as you join them correctly.
SQL> with a as
2      (
3      select 1 id, 2 b_key, 3 c_key from dual union all
4      select 2 id, 1 b_key, 4 c_key from dual union all
5      select 3 id, 3 b_key, 1 c_key from dual union all
6      select 4 id, 4 b_key, 2 c_key from dual
7      ),
8      b as
9      (
10      select 1 id, 1 c_key2 from dual union all
11      select 2 id, 5 c_key2 from dual union all
12      select 3 id, 3 c_key2 from dual union all
13      select 4 id, 2 c_key2 from dual
14      ),
15      c as
16      (
17      select 1 key1, 1 key2, '1-1' dta from dual union all
18      select 1 key1, 2 key2, '1-2' dta from dual union all
19      select 1 key1, 3 key2, '1-3' dta from dual union all
20      select 1 key1, 4 key2, '1-4' dta from dual union all
21      select 2 key1, 1 key2, '2-1' dta from dual union all
22      select 2 key1, 2 key2, '2-2' dta from dual union all
23      select 2 key1, 3 key2, '2-3' dta from dual union all
24      select 2 key1, 4 key2, '2-4' dta from dual union all
25      select 3 key1, 1 key2, '3-1' dta from dual union all
26      select 3 key1, 2 key2, '3-2' dta from dual union all
27      select 3 key1, 3 key2, '3-3' dta from dual union all
28      select 3 key1, 4 key2, '3-4' dta from dual union all
29      select 4 key1, 1 key2, '4-1' dta from dual union all
30      select 4 key1, 2 key2, '4-2' dta from dual union all
31      select 4 key1, 3 key2, '4-3' dta from dual union all
32      select 4 key1, 4 key2, '4-4' dta from dual
33      )
34 select d.a_id, d.b_id, c.key1 as c_key1, c.key2 as c_key3, c.dta
35 from
36      c,
37      (
38      select
39          a.id as a_id, b.id as b_id, a.c_key, b.c_key2
40      from a, b
41      where a.b_key = b.id
42      ) d
43 where d.c_key = c.key1 (+)
44 and   d.c_key2 = c.key2 (+);
      A_ID       B_ID     C_KEY1     C_KEY3 DTA
         3          3          1          3 1-3
         4          4          2          2 2-2
         2          1          4          1 4-1
         1          2
SQL>

What is the maximum number of columns that can be displayed by sqlplus?

Hello,
Questions:
Is there a limit on what sqlplus can display?
What is the maximum number of columns that can be displayed by sqlplus?
I cannot find anything on this in my search. I checked the limits page:
http://docs.oracle.com/cd/B19306_01/server.102/b14357/apa.htm#sthref3658
http://docs.oracle.com/cd/E11882_01/server.112/e16604/apa.htm#i635278
It does not specify any column limits; however, I'm thinking it is tied to LINESIZE which is system dependent.
Please confirm if true.
Thanks!

Received answer directly from SQL*Plus Development:
"sqlplus does not have a limit on the number of columns it displays."
They created a table with more than 256 columns with data and had no problem retrieving the data.

Maximum number of connections that database can make

Similar Messages

Maybe you are looking for