Hi Folks,

Today we will discuss about transactions in SSIS (sql server integration services)

Transactions in SSIS allows you to commit the group of data flow tasks (or) allows you to roll back the group of dataflow tasks as single logical unit of work

Transactions supported by every executable (i.e. package level, task level, container level)

For this 2 properties have to be set for executable

1. Transaction option

2. Isolation level

Transaction option is of 3 types

1. Not supported: executable will not support transactions

2. Supported: executable will join the transaction if transaction exists.(default)

3. Required: executable join the transaction if exists else it creates new transaction

Process:

If any tasks are executed, then tasks are executed under transaction if transaction option for executable is set to supported.

Suppose sequence container having 3 sql execute tasks and it is sequence container is having transaction option =required

Isolation level =serilizable(default).

Then it creates new transaction when executed the sequence container.

All the tasks in sequence container is having transaction option set to supported means these asks run under transaction created by sequence container.

If the tasks having transaction option set to Required, it will join the existing transaction , if no transaction is there, it will create new transaction and executes

Example:

Create 3 tables with names as

1.Customer

2.Email

3.Vehicle

Syntaxes:

create table customer(custno int,custname varchar(10))

create table email(custno int,emailid varchar(20))

create table vehicle(custno int,vin char(5) not null,model char(3))

Where VIN-Vehicle identification number

Open Business intelligence development studio and click on file->new->project->integration services project

Place sequence container and drag 3 execute sql tasks like below

Double click on first execute sql task and set the properties

In general page, connection type =OLEDB

Connection: select new connection, a window occurs, specify the data source information give server name and database information and test the connection

Click OK and we got below screen

General page,

Sql source type=Direct input

Sql statement=insert customer values(10,’chaitu’)

This is looks like below.

Same can be done for other execute sql tasks with same connection but different sql statement

Set Execute sql task 1 Properties

Set Execute SQL task 2 properties

insert vehiclecustno,model) values(10,’abc’)

We have passed values to the insert statement for 3rd task but the table is having not null column. We are not passing information to that column. So this task must fail.

Transaction in SSIS makes use of the Distributed Transaction Coordinator (MSDTC) service which must be running in services. MSc. MSDTC also allows you to perform distributed transactions e.g. updating a any RDBMS database. If you execute an SSIS package that utilizes the built-in transaction support and MSDTC is not running, you will get an error message like the following:

Error: 0xC001401A at Transaction: The SSIS Runtime has failed to start the distributed transaction due to error 0x8004D01B "The Transaction Manager is not available.". The DTC transaction failed to start. This could occur because the MSDTC Service is not running.

Execute the package by pressing f5

We got below error like this

First two execute sql tasks are success. 3rd task is failed. So transaction is roll backed. Because these 3 tasks are running under single transaction

To implement package scope transactions, place another sequence container move execute sql task 2 to that sequence container. Go to properties window of package by clicking f4

Transaction property: required

Isolation: serilizable(default)

Sequence containers properties are:

Transaction property: Supportes

Isolation: serilizable(default)

It will be looks like below

Execute the package by clicking on F5

It will be failed as 3rd task is failed.

So first and second task inserts data, that is roll backed.

This is all about transactions in SSIS.

Thanks for viewing.

Regards,

Chaitanya,

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Hi All,

Microsoft introduced 2 DMV’s(Dynamic management view) for viewing sql services information and system registery information in sql server denali

SELECT *
FROM sys.dm_server_services

And for the registery information , we have another DMV

SELECT *
FROM sys.dm_server_registry

Reference : Pinal Dave(http://blog.sqlauthority.com)

Please check and let us know if you have any concerns on this.

Thanks for viewing.

Regards,

Chaitanya

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Hi Folks,

When we are attaching the mdf file to the sql server instance, we got the below error like this

Means the account that you are using in sql server for attaching data file has no permissions for the folder where these files are placed

First check service account under which sql server instance is running

Check the sql server instance name where your query is executing using t-sql

In order to check this we have options like

1. Go to run ->services.msc->check the sql nstance service

Here the service account you are using is local system means the your windows login

2. Use the t-Sql in the query analayser

declare @sqlser varchar(20)

EXEC master..xp_regread @rootkey=’HKEY_LOCAL_MACHINE’, @key=’SYSTEMCurrentControlSetServicesMSSQLSERVER’,

@value_name=’objectname’, @value=@sqlser OUTPUT

PRINT ‘Account for sql server Instance:’ +convert(varchar(30),@sqlser)

3. Go to serface area configuration manager and check the account name

Means your windows login did not have the permissions for the folder where you have the mdf file.

Go to that folder and right click and select security tab and give the full control like below and execute the attached script

Please check and let us know if you have any questions

Thanks for viewing

Regards,

Chaitanya

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Hi All,

If you want to check the service pack of sql server, please run the below sql query

SELECT CONVERT(char(20), SERVERPROPERTY(‘productlevel’));

Result:

SP1

Regards,

Chaitanya

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Hi All,

We have sys.objects catalog view that is used from the sql server 2005

Below script is used to find the stored Procedures that are modified with in week

SELECT name

FROM sys.objects

WHERE type = ‘P’

AND DATEDIFF(D,modify_date, GETDATE()) < N

Where N is Number of days

Same can be done using the views sys.system_objects, sys.all_objects

You can place any object like table, views etc except dml triggers and these are found in the another system catalog view sys.triggers.

We have these many types of objects that are referened in this view

Regards,

Chaitanya,

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Installing and configuring Sql server 2005

Installing sql server 2005

1. enterprise edition:

No processor and memory limits, more processors in the server means more memory24/7 environment and minimal downtime. It supports high availability features like online indexing operations, parallel index operations, failover clustering, database mirroring

And online indexing and parallel index operations are not supported in the standard edition and Enterprise and standard editions supports 64 bit architecture

2. Standard edition:

4 processors and no memory limits , in previous version high availability features like failover clustering and database mirroring is not there and afterwards Microsoft decides to gives the failover clustering and database mirroring. So that MS gives more features for your money

And online indexing and parallel index operations are not supported in the standard edition and for these features we need to go for enterprise edition

Differences:

1. Standard edition is also same as enterprise edition but enterprise edition will provide the extra feuatures.

2. SQL Server Reporting Services (SSRS) is available in both Standard and Enterprise editions of SQL Server. However, Enterprise edition offers substantially more BI features, such as parallel processing, cube partitioning, and text mining.

3. Enterprise is the only edition that allows you to replicate data from Oracle.

4. SQL Server Standard is significantly less expensive than Enterprise when licensed per cp

5. If you need your systems should have a high-availability, mission-critical environment.

6 . If you are working with large volumes of data

3. Work group editions:

It does not supports high availability and business intelligence features and supports 64 bit architecture

4. Express edition: its free and for learning

Developer edition: its same as enterprise edition but not licensed for production

And it is used only for development and testing

5. Mobile edition:

It supports the mobile device and smart devices stores the information in sql server mobile edition

Installer enhancements:

1. Windows installer:

Like Microsoft office, we can choose the peaces(Components) you want to install in the sql server

Like DB engine, sql server integration services , sql server reporting services,sql server analasis services. We can install what you need

2. Improved error logging: each component has separate error log. If there is any issue , so it will give the error information related to that component. Its nice enhancement introduced

3. System configuration checker:

It will check the entire machine and gives the result that machine has the required components to install the sql server

4. Remote installation is simplified here

Upgrading the Engine:

Sql server 2000 and service pack 3 is there in the server then it will be upgraded to sql server 2005

If sql server 7.o and service pack 4 is there in the server, then it will be upgraded to sql server 2005

If sql server 6.5 installed in the server, then upgrade to sql 7.o version and then upgrade to sql server 2005

Sql server upgrade advisor:

Microsoft provides the SQL Server 2008 Upgrade Advisor (SSUA) to help you detect upgrade issues before they occur. This tool examines your SQL Server 2000 and SQL Server 2005 databases and checks for any potential conflicts. I strongly recommend using this tool in advance of any attempted upgrade.

Difficulty: Average

Time Required: One hour

Down time is decreased due to this

Upgrading the components:

Analysis services:

Analysis service migration wizard is there for up gradation of 2000 packages to 2005 packages

Integration services:

Package migration wizard: in 2000 DTS packages are there and these are converted to ssis packages with this wizard.

Reporting services:

In this report server migration: it is clearly explained in Books online

Reports migration: deploy the reports of sql server 2000 to sql server 2005 report server and 2005 server recognizes the reports and converts to the 2005 format.

We cannot convert back to sql server 2000 reports

Upgrade advise take all the components and analyzed and nice reports on the issues that are stopping the reports.

We have 2 cd’s and in the first CD have the below look

Run Sql server native wizard for the client components

Click on server components and it is used for installing sql server

Click on next

It will check and install the sql server 2005 pre requisites like .net framework

This check will perform the analyses and let us know if there is any problems are occurring during this installation and it gives the report of the analysis.

After click next and give the CD key and you got the below screen

We can choose the components what we need to install in the sql server

If we click on advanced, you will get the what are the feuatures are installing with these components

Click next

Default instance is it will take the name of the computer as the instance name

Named instance means we can give any name

I am selected the named instance with the name as below

And we can view the installed instances on the machine by clicking installed instances options

We can install as many as instances in the machine and click next we got the below screen

We can services like sql server,ssrs,ssis,ssas etc that needs to be run under some account

You can give the system account or user account

I am selecting the our own account

Click on next, and choose the authenctication mode

We have 2 authentication modes:

Windows and mixed authentication mode

During setup, you must select an authentication mode for the Database Engine. There are two possible modes: Windows Authentication mode and mixed mode. Windows Authentication mode enables Windows Authentication and disables SQL Server Authentication. Mixed mode enables both Windows Authentication and SQL Server Authentication. Windows Authentication is always available and cannot be disabled.

Configuring the Authentication Mode

If you select Mixed Mode Authentication during setup, you must provide and then confirm a strong password for the built-in SQL Server system administrator account named sa. The sa account connects by using SQL Server Authentication.

If you select Windows Authentication during setup, Setup creates the sa account for SQL Server Authentication but it is disabled. If you later change to Mixed Mode Authentication and you want to use the sa account, you must enable the account. Any Windows or SQL Server account can be configured as a system administrator. Because the sa account is well know and often targeted by malicious users, do not enable the sa account unless your application requires it. Never set a blank or weak password for the sa account. To change from Windows Authentication mode to Mixed Mode Authentication and use SQL Server Authentication,

Click on next, we got collation settings screen

Collation tells sql server how to sort the data and the how to interpret the character set

Because data from the different regions will come and sql server will check the data according to collation settings

2 types of collations, sql server and windows collation. Default sql server collations are there, we can change the collation to windows collation also.

To know the collation of the sql server instance

select serverproperty(‘collation’)

Result:SQL_Latin1_General_CP1_CI_AS

What this collation means

We have sql server built in function for displaying the collatin description

SELECT *

FROM fn_helpcollations() where name =’SQL_Latin1_General_CP1_CI_AS’

Latin1-General, case-insensitive, accent-sensitive, kanatype-insensitive, width-insensitive for Unicode Data, SQL Server Sort Order 52 on Code Page 1252 for non-Unicode Data

This collation is at server level

We have the collation for every database

To know the what databases uses what collation, use the below script

SELECT collation_name,name

FROM sys.Databases

In order to find the column level collations

SELECT name, collation_name

FROM sys.columns

WHERE OBJECT_ID IN (SELECT OBJECT_ID

FROM sys.objects

WHERE type = ‘U’)

But for analysis service collation used is windows collations.

Click on next, you will get the Reporting services configuration

We can choose default configuration or customized configuration.i am choosing default one.

After,

We can send the error reports to Microsoft if there are any issues in the installation

Click next and we got below screen

Click on install and after installation completed, we got the summary of the log and the component log

By clicking on the below link

We can see these log files , in the below folder

C:Program FilesMicrosoft SQL Server90Setup BootstrapLog and you can see the summary of the log

And you can see the component log in the

C:Program FilesMicrosoft SQL Server100Setup BootstrapLogfiles directory

We can see the what we have installed in the sql server configuration manager

Integration services is not instance specific and sql browser also and other services are instance specific

We can see these services in services window

Go to run and type services. MSc and enter we can see the services.

If we go to services, we will see the properties of services by right clicking on the service

We explained this in the below post

http://mssqlbuzz.com/2011/10/05/sql-server-configuration-manager-tool-explanation/

Please check and let us know if you have any concerns on this.

Thanks for viewing

Regards,

Chaitanya

Visit site: https://mssqlbuzz.wordpress.com

Send an Email : mssqlbuzz

Hi All,

Below is the script to find the reverse of the given string without using built in function Reverse

To display the reverse of the string like a scalar variable

use tempdb

go

if object_id(‘tempdb..#temp’) is not null

begin

drop table #temp

end

go

declare @test varchar(100)

set @test=’chaitanya’

declare @count int

select @count=len(@test)

declare @i int

set @i=1

create table #temp

(

column1 varchar(100)

)

declare @result varchar(100)

set @result=”

while(@i <=@count)

begin

select @result = substring(@test,@i,1)+@result

set @i=@i+1

end

insert #temp(column1)

select @result

select * from #temp

Result:

If you want to display the string with incremental values and it should be in reverse order

use tempdb

go

if object_id(‘tempdb..#temp’) is not null

begin

drop table #temp

end

go

declare @test varchar(100)

set @test=’chaitanya’

declare @count int

select @count=len(@test)

declare @i int

set @i=1

create table #temp

(

column1 varchar(100)

)

declare @result varchar(100)

set @result=”

while(@i <=@count)

begin

select @result = substring(@test,@i,1)+@result

set @i=@i+1

insert #temp(column1)

select @result

end

select * from #temp

Result:

Please check and let us know if you have any doubts on this.

Thanks for viewing

Regards,

Chaitanya

Visit site: https://mssqlbuzz.wordpress.com

Send an Email : mssqlbuzz@gmail.com

SQL server 2005 Training day1 — Introduction to sql server 2005

From today onwards I am going to write about sql server training 2005

It is mainly for DBA’s and useful for developers and support folks and it covers exam (70-431)

In sql server 2005 , Microsoft changed lot in sql server product

Before there is no integration of developers and DBA‘s and now MS introduced integration of Developers and DBA’s

3 types of roles in sql server

1. DBA

2. Developers

3. Users

Roles of DBA:

Managing, monitoring and changing the health performance, reliability, security of the system

Developer will develop the objects in sql server

Users will use the results from the sql server

Roles and responsibilities are same for the developers and DBA’s but in 2000 DBA‘s uses enterprise manager for admin tasks and developers used query analyzer

Now in 2005, these are gone and they are integrated into sql server management studio

Sql server 2005 breaking all the records of bench mark testing and there is 7% increase in performance

Over oracle 10g and 37% lower cost so many people will get the product at low cost

We can install different instances of sql server on one server

In one machine, we can have the sql server 2000 instance, sql server express instance, sql server 2005 test instance like that

SQL Server from beginning:

1987:-

Sybase company created the Sybase sql server for Unix ,at the time oracle is the having the biggest database in the industry.so Microsoft decided to partner with Sybase

1993 – 4.2.1 version :-

They developed the Sybase sql server i.e. integrated with Windows NT 3.1 operating system

most of code is for Sybase developed and this Sybase sql server is coded for Unix also called Sybase sql 4.0

1995:-

MS and Sybase divided and MS developed the own sql server of version 6.0 for Windows NT 3.1 and 3.5

but the code is Sybase code and Microsoft decided to use their own code. Introduced the replication concept

1996:-

MS released 6.5 version with better features with integration with windows NT 4.o and it is poor in performance, but lots of new features

1999-7.0 version:-

Microsoft did the new code (all MS code)

New GUI, OLAP, Dataware houses,scalable,fast,reliable

2000: 8.0 version:-

Sql server 2000 with many enhancements like analysis services

2005: 9.0 version:-

Reporting services, service broker,ssms. here everything is touched.

Sql Server tools and components:

Management tools:

1. Sql server management studio

Here the sql server enterprise manager and sql server query analyser in sql server 2000 are integrated and developed this tool.

2. Sql server configuration manager

It will replace the client network utility, server network utility and service manager in the sql server 2000

And these three tools are integrated and replaced by the sql server configuration manager like below in sql server 2005

I explained about this tool in my blog

http://mssqlbuzz.com/2011/10/05/sql-server-configuration-manager-tool-explanation/

Development tools:

1. SSMS(sql server management studio) for writing the queries and creating the objects in sql

Server.

2. Business intelligence development studio : for developing SSIS,SSRS,SSAS applications

Called as BIDS

Performance tools:

1. Database engine tuning advisor:

The Database Engine Tuning Advisor enables you to tune databases for improved query processing. Database Engine Tuning Advisor examines how queries are processed in the databases you specify and then it recommends how you can improve query processing performance by modifying physical design structures such as indexes, indexed views, and partitioning.

It replaces the Index Tuning Wizard from Microsoft SQL Server 2000, and offers many new features. For example, Database Engine Tuning Advisor provides two user interfaces: a graphical user interface (GUI) and the dta command prompt utility. The GUI makes it easy to quickly view the results of tuning sessions, and the dta utility makes it easy to incorporate Database Engine Tuning Advisor functionality into scripts for automated tuning. In addition, Database Engine Tuning Advisor can take XML input, which offers more control over the tuning process.

2. sql server profiler :

Microsoft SQL Server Profiler is a graphical user interface to SQL Trace for monitoring an instance of the Database Engine or Analysis Services. You can capture and save data about each event to a file or table to analyze later. For example, you can monitor a production environment to see which stored procedures are affecting performance by executing too slowly etc.

Sqlcmd is the sql version of command line tools: it replaces the Osql.Osql is completely gone

Before Sql DMO (data management objects) is the object library for sql server and now it is replaced with SMO(sql management objects) .

Components of Sql server:

1. database engine: it is not changed for execution

2. SSAS (SQL server analysis services): we can develop multi-dimensional objects such as cubes etc.

3. SSIS(sql server integration services): for developing ETL packages

4. SSRS(sql server reporting services): for developing the reports

5. SSNS(sql server notification services):send the notifications to anybody on any device

And it is removed in sql server 2008

6. SQL server service broker: it like the message queuing system which keeps the messages and other application will pick those messages and process

In configuration tools, we have tools like

1. Sql server configuration manager:

I already posted one post on this

http://mssqlbuzz.com/2011/10/05/sql-server-configuration-manager-tool-explanation/

2. Notification services command prompt

For managing notification services. It is removed in sql server 2008

3. Reporting services configuration: we can configure the reporting services instances here

If you open this tool, you will get like below

We can connect to the report server instance and manage the properties

4. Sql server error and usage reporting:

We can send the errors to the Microsoft that are occurred in sql server by using this tool

Sql server surface area configuration Manager:

It will do all the checks and Surface area reduction is a security measure that involves stopping or disabling unused components

It is removed in sql server 2008

We can have the documentation and tutorials: and it have mobile edition tutorial and sql server tutorial and sql server tutorials and sql server books online for learning

BIDS:

SSMS:

We can register the server s here in the SSMS so that we will query and manage them whenever you want

In sql server 2000, we have register servers like this

We can query and manage these servers.

Here Green mark represent the server is connected

In ssms(sql server 2005) for registration of servers, go to view and registered servers you got window like below

By clicking and register the server

Save it and you can see the registered servers like below

Here Green symbol means the server is up and running fine, but we are not connected to the server

So to connect right click on registered server and new query so that it is connect to server and shown in the right window

If we go to any database and see the reports of database, follow like below

These are reports, and we have bunch of reports and gives the all details about the database

Solution explorer: it is used to for maintaining the projects

For creating the projects, file-> new-> projects-> select the project type and —- and click ok . you will get the project in the solution explorer in the right side and it is like below

Running the queries in ssms is very easy, go to database and right click and select new query

And you can create the queries and execute the queries

Please check and let us know if you have any concerns on this.

Thanks for viewing this.

Regards,

Chaitanya

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Hi Folks,

To know the number of Processors in your sql server machine

We have xp_msver extended procedure

to find out the number of processors on the server where SQL Server is installed.

Regards,

Chaitanya,

Webiste : https://mssqlbuzz.wordpress.com/

To Send Mail : mssqlbuzz