Technical Notes

Application pool ‘DefaultAppPool’ exceeded its job limit settings

Raju Sachin — Mon, 08 Mar 2010 13:15:00 +0000

This warning in event log will cause the high CPU usage and leads to the service unavailable error in IIS. This issue is due to enable CPU monitoring. Related posts:

Error while processing OLAP cube in SQL Analysis Services This article describes the resolution for the issue that is faced while processing the OLAP cube in SQL Analysis Services. While processing the dimension in the cube sometimes the dimension gets hanged or it throws the error “– 2147221411: Process operation failed”. Problem Summary When you try to process the...
Steps to Create and Deploy SSIS Package as a SQLAgent Job Microsoft says that SQL Server Integration Services (SSIS) “is a platform for building high performance data integration solutions, including extraction, transformation, and load (ETL) packages for data warehousing.” A simpler way to think of SSIS is that it’s the solution for automating SQL Server. SSIS provides a way to build...
Guidelines for Testing Database Level Application Introduction Databases are integral part of any application. There are applications which directly operate on databases. There are other applications that send requests to the aforementioned applications. The document provides the guidelines on how to go on with the testing of applications that directly operate on Databases. The system test...

How to FTP files with Larger Record Length to Mainframe

Tech Guy — Wed, 24 Feb 2010 18:12:58 +0000

FTP files to mainframe In order to FTP the file to Mainframe we have to use: put < path/filename1 > < ’filename2’ > (put command is used when we logged to one server and are transferring the file to different server) or get [...] Related posts:

Oracle PL/SQL Datatypes SQL: Data Types The following is a list of general SQL datatypes that may not be supported by all relational databases. Data Type Syntax Oracle 9i Explanation (if applicable) dec(p, s) The maximum precision [...]...
UNIX Command Tips for Developers Here are some interesting shell commands that can be useful to any programmer working on UNIX environment 1. Viewing a zipped or Compressed file zcat This will help you to view the contents of a zipped file. 2. using the while command to keep the session [...]...
Inbuilt Functions in Oracle Character Functions in oracle String function plays important role in oracle as often it is required to convert the string or extract certain part of it. These functions accept column value or an expression as the input. ASCII This function is used to get the ASCII value of a character....

Introduction to JOINS in SQL Server

Tech Guy — Tue, 23 Feb 2010 17:41:32 +0000

SQL Server provides a method of retrieving data from more than one table using joins. A join can be defined as an operation that includes the retrieval of data from more than one table at a time. A join is implemented using the SELECT statement, in which the SELECT list contains the name of the columns [...] Related posts:

SQL TIPS : Writing Multiple Column Subqueries In subqueries, regardless of whether one row or multiple rows are returned, each of these rows contains only one column worth of data to compare to the main query level. The main query can be set up to handle multiple columns in each row returned, too. For example select deptno,ename,job,sal,...
An Introduction to Microsoft SQL Server 2008 – Part 1 Microsoft® SQL Server® 2008 is a database platform for large-scale online transaction processing (OLTP), data warehousing, and e-commerce applications; it is also a business intelligence platform for data integration, analysis, and reporting solutions. Microsoft® SQL Server® 2008 provides a trusted, productive, and intelligent data platform that enables you to run...
Why Upgrade to Microsoft SQL Server 2008? With the new release of SQL Server 2008, there are many benefits in upgrading the existing applications to the latest release. SQL Server 2008 provides a Data Platform for enterprise applications. Let’s learn more about the new features available in SQL Server 2008...

Issue on Renaming SQL Server machine name

Raju Sachin — Tue, 23 Feb 2010 14:29:46 +0000

If we change SQL Server machine's computer name, the new name doesn't take to effect immediately to SQL server. This article will solve this problem. Related posts:

Troubleshooting SSRS Error “The report server is not responding” This article explains the step by step troubleshooting methodology for correcting the error “The report server is not responding. Verify that the report server is running and can be accessed from this computer” that occurs in SQL Server Reporting Services (SSRS 2005). SQL Server 2005 Reporting Services (SSRS 2005) allows...
Cannot install SQL Server cluster on a computer that runs Microsoft Windows Server 2003 We might have seen the error “Cannot install SQL Server cluster on a computer that runs Microsoft Windows Server 2003 “ during the process of SQL Server Installation in Windows Server 2003. Let us discus why we get the error and how to recover from the error Problem Description You...
Error while installing the SQL Server 2000 Virtual Instance When you try to install an instance of Microsoft SQL Server 2000 virtual server on the failover cluster nodes that are running Microsoft Windows Server 2003, you may notice that the SQL Server 2000 virtual server installation is not completed successfully. Additionally, you may receive the following error message: “An...

ORA-01035: ORACLE only available to users with Restricted Session privelege

Tech Guy — Mon, 22 Feb 2010 17:20:44 +0000

Cause : The database is in Restricted Mode, Usually database will be put in restricted mode while taking backup. While in restricted mode users with Restricted access will have access to database. Normal users will be able to access database. Identification : You can identify the current login mode of the database using the query SQL> select logins from [...] Related posts:

ORA-01652 unable to extend temp segment by 64 in tablespace Solution: 1. Check the datafile location of the tablespace where the space issue has raised. SQL>Select file_name, from dba_data_files where tablespace_name=’TN’; 2. Check whether there is space in the tablespace from the following query. SQL>select tablespace_name, sum (bytes/1024/1024) from dba_free_space where tablespace_name=’TN’ GROUP BY tablespace_name; select tablespace_name, sum (bytes/1024/1024) from...
Oracle PL/SQL: Transactions Oracle PL/SQL: Commit Transactions The syntax for the COMMIT statement is: COMMIT [WORK] [COMMENT text]; The Commit statement commits all changes for the current session. Once a commit is issued, other users will be able to see your changes. Oracle PL/SQL: Rollback Transactions The syntax for the ROLLBACK statement is:...
Microsoft SQL SERVER – Security What are Builtin\Administrators? SQL Server creates a default NT Group login called Builtin\Administrators during installations.This login facilitates the following All local NT administrators on the server to have default sysadmin privileges Automatic access to system tables Automatic access to user tables How security is compromised? SQL Server security is compromised...

SQL Server – Maximum Capacity Specifications Comparison

Raju Sachin — Tue, 06 Oct 2009 12:22:00 +0000

The following table compares the maximum sizes and numbers of various objects defined in SQL Server 7.0, SQL Server 2000 and SQL Server 2005 databases or referenced in Transact-SQL statements. The table does not include Microsoft SQL Server 2000 Windows CE Edition and Microsoft SQL Server 2005 Windows CE Edition. The table has the technical [...] Related posts:

Encryption and Decryption in SQL Server 2005 In this tutorial we shall see how to implement Microsoft SQL Server 2005 Encryption Techniques. Microsoft SQL Server 2005 Encryption are a good way to encrypt sensitive and confidential fields such as passport number, credit card number, phone numbers, and other user information. Many applications require security of important data...
SQL Compare – Compare and Synchronize tool for SQL Server Database SQL Compare is a Data comparison and synchronization tool from Redgate, This is an effective tool for SQL developers, Test Engineers and SQL DBAs to accomplish their task. The specialty of the software is that it can be used with live database, Database Snapshots as well as SQL Scripts. Some...
Consistency Errors in MS SQL Server 2000 Overview of Consistency Errors A DBCC CHECKDB statement may report consistency errors in your database when all the following conditions are true: SQL Server loads data into a column that is a sql_variant data type. The data originates in another column that is a sql_variant data type and at some...

Java Class for Sending Email using Java API

Tech Guy — Thu, 01 Oct 2009 17:31:01 +0000

Introduction This is a java class file for sending mails using java APIs. It requires two jar files to be set in the class path. Also Java J2SDK is required to compile or run this code. A valid SMTP server ip is required and that should be authenticated by a valid user id and password. Limitations [...] Related posts:

Java Commons-Email API Introduction Commons-Email provides an API for sending email. It is built on top of the Java Mail API, which it aims to simplify. Some of the mail classes that are provided are as follows: SimpleEmail – This class is used to send basic text based emails. MultiPartEmail – This class...
Java Developers Forgetting that Java is zero-indexed If you’ve come from a C/C++ background, you may not find this quite as much a problem as those who have used other languages. In Java, arrays are zero-indexed, meaning that the first element’s index is actually 0. Confused? Let’s look at a quick example. // Create an array of...
Java API for Voice Based Solutions Introduction Voice based solutions are needed when there is a legal requirement to play back an already recorded statement, recording and playing back the telephony conversations, speech recognition systems, visually impaired people, for training customer support representations and so on. Voice based solutions can be implemented using J2SE Java Sound...

Weblogic Server Error : Server not coming UP

Tech Guy — Thu, 01 Oct 2009 15:57:16 +0000

Problem Description: Server not coming up after restart. (You will find error in log like: “Could not acquire lock on ldap … already in use …”) Possible causes: Server did not shutdown properly though in console you will see the status as SHUTDOWN / UNKNOWN Solution: Logon to UNIX box. Switch user to the user owning the domain Run “/usr/ucb/ps [...] Related posts:

Weblogic Administration Error : Execute Thread Count Full Problem Description: Execute Thread Count Full Solution/Workaround: Open WebLogic Admin Console Go to the server for which the Default Execute Thread filled up Go to “Monitor all Execute Queue” Check for “Idle threads” count If it is showing “Zero”, and application is running slow and the IdleThread count is “Zero”...
Weblogic Administration Error : Heap Space Utilization too high This Article is intended for Weblogic Administrators as a quick reference to known issues and their solution or workarounds. This will help in fast and effective resolution of problems Problem Description: Heap Space Utilization too high (>=95% say) Solution/Workaround: Log on to WebLogic Admin Console Go to the server instance...
Troubleshooting SSRS Error “The report server is not responding” This article explains the step by step troubleshooting methodology for correcting the error “The report server is not responding. Verify that the report server is running and can be accessed from this computer” that occurs in SQL Server Reporting Services (SSRS 2005). SQL Server 2005 Reporting Services (SSRS 2005) allows...

Weblogic Administration Error : Execute Thread Count Full

Tech Guy — Thu, 01 Oct 2009 15:44:33 +0000

Problem Description: Execute Thread Count Full Solution/Workaround: Open WebLogic Admin Console Go to the server for which the Default Execute Thread filled up Go to “Monitor all Execute Queue” Check for “Idle threads” count If it is showing “Zero”, and application is running slow and the IdleThread count is “Zero” forlong (say 5 min) Only option is to restart the server instance. [...] Related posts:

Weblogic Administration Error : Heap Space Utilization too high This Article is intended for Weblogic Administrators as a quick reference to known issues and their solution or workarounds. This will help in fast and effective resolution of problems Problem Description: Heap Space Utilization too high (>=95% say) Solution/Workaround: Log on to WebLogic Admin Console Go to the server instance...
Weblogic Server Error : Server not coming UP Problem Description: Server not coming up after restart. (You will find error in log like: “Could not acquire lock on ldap … already in use …”) Possible causes: Server did not shutdown properly though in console you will see the status as SHUTDOWN / UNKNOWN Solution: Logon to UNIX box....
Error while installing the SQL Server 2000 Virtual Instance When you try to install an instance of Microsoft SQL Server 2000 virtual server on the failover cluster nodes that are running Microsoft Windows Server 2003, you may notice that the SQL Server 2000 virtual server installation is not completed successfully. Additionally, you may receive the following error message: “An...

Weblogic Administration Error : Heap Space Utilization too high

Tech Guy — Thu, 01 Oct 2009 15:38:04 +0000

This Article is intended for Weblogic Administrators as a quick reference to known issues and their solution or workarounds. This will help in fast and effective resolution of problems Problem Description: Heap Space Utilization too high (>=95% say) Solution/Workaround: Log on to WebLogic Admin Console Go to the server instance for which the heap space [...] Related posts:

Weblogic Administration Error : Execute Thread Count Full Problem Description: Execute Thread Count Full Solution/Workaround: Open WebLogic Admin Console Go to the server for which the Default Execute Thread filled up Go to “Monitor all Execute Queue” Check for “Idle threads” count If it is showing “Zero”, and application is running slow and the IdleThread count is “Zero”...
Weblogic Server Error : Server not coming UP Problem Description: Server not coming up after restart. (You will find error in log like: “Could not acquire lock on ldap … already in use …”) Possible causes: Server did not shutdown properly though in console you will see the status as SHUTDOWN / UNKNOWN Solution: Logon to UNIX box....
Error: SQL0290N Table space access is not allowed DB2 Error: SQL0290N Description :Table space access is not allowed. Explanation: A process attempted to access a table space which is in an invalid state for which the intended access is not allowed. If the table space is in a quiesced state, only processes which also hold the table space...