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Steps to change logged in account password on Remote Desktop Session Windows Server 2008/R2 box

Posted by Jugal Shah on May 23, 2012

You can follow the below steps to change the password of the logged in account using RDP.

Step 1: Go to Start -> Windows Security

Step 2: Click on change password

Step 3: Change the password as mentioned in the below screen.

Posted in SQL Server | Leave a Comment »

Setting the PowerShell Execution Policy

Posted by Jugal Shah on May 22, 2012

Problem
Recently I moved PowerShell script files to a production environment and when executing it from the command prompt, I got this error: “File cannot be loaded because the execution of scripts is disabled on this system. Please see “get-help about_signing” for more details”. In this tip we cover what needs to be done to resolve this issue.

Solution
http://www.mssqltips.com/sqlservertip/2702/setting-the-powershell-execution-policy/

Posted in SQL Server, SQL Server 2008, SQL Server 2008 R2, SQL Server 2011 (Denali) | Tagged: , , , , | 1 Comment »

How to make SQL Server View Read Only?

Posted by Jugal Shah on May 21, 2012

In SQL Server a view represents a virtual table. Just like a real table, a view consists of rows with columns, and you can retrieve data from a view (even you can INSERT/UPDATE/DELETE data in a view). The fields in the view’s virtual table are the fields of one or more real tables in the database. You can use views to join two tables in your database and present the underlying data as if the data were coming from a single table, thus simplifying the schema of your database for users performing ad-hoc reporting. You can also use views as a security mechanism to restrict the data available to end users

See the below example how we can make the view read only.


--creating a sample table
Create table tbl1
(
	myID int,
	name varchar(10)
)

--inserting data
insert into tbl1 values(1,'Jugal'),(2,'SQL'),(3,'DBPool')

--creating sample view
create view vwtbl1
as
select * from tbl1

--inserting data using view
insert into vwtbl1 values(1,'Jugal'),(2,'SQL'),(3,'DBPool')

--altering view to make it readOnly
alter view vwtbl1
as
select myid,name from tbl1
union all
select 0,0 where 1 =0

INSERT/UPDATE/DELETE will fail with the below errors.

Msg 4406, Level 16, State 1, Line 1
Update or insert of view or function 'vwtbl1' failed because it contains a derived or constant field.

Msg 4426, Level 16, State 1, Line 1
View 'vwtbl1' is not updatable because the definition contains a UNION operator.

Posted in SQL Server, SQL Server 2008, Database, DB Articles, SQL Server 2008 R2, SQL Server 2011 (Denali) | Tagged: , , , , , | 1 Comment »

Script to Create Foreign Key on the Compound Primary Key

Posted by Jugal Shah on April 16, 2012

Compound Primary key is a primary key which is created on more than one column. Now the questions is how to create the foreign key for the compound primary key where it references more than one column.

Check the below example.

create table employee
(
	empID int not null,
	SSN int not null,
	name varchar(20)
)


ALTER TABLE [employee]
ADD CONSTRAINT pk_employee PRIMARY KEY (empID, SSN)


create table EmpDetail
(
		empID int,
		SSN int,
		address varchar(20),
		city varchar(20),
		pin varchar(20)
)

ALTER TABLE dbo.empDetail
   ADD CONSTRAINT FK_Employee
   FOREIGN KEY(empID, SSN)
   REFERENCES dbo.employee(empID, SSN)


SELECT
    tc.TABLE_NAME,
    tc.CONSTRAINT_NAME, 
    ccu.COLUMN_NAME
FROM 
    INFORMATION_SCHEMA.TABLE_CONSTRAINTS tc
INNER JOIN 
    INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE ccu 
      ON ccu.TABLE_NAME = tc.TABLE_NAME AND ccu.CONSTRAINT_NAME = tc.CONSTRAINT_NAME
WHERE
    tc.TABLE_NAME IN ('employee','employeeDetail')

Posted in Database, SQL Server, SQL Server 2008, SQL Server 2008 R2, SQL Server 2011 (Denali) | Tagged: , , , , , , , , , | Leave a Comment »

Primary Key, Unique Key Constraints – Clustered Index and Non Clustered Index

Posted by Jugal Shah on April 15, 2012

You can use the below script to create the Primary Key on the already existing tables. Primary key enforces a uniqueness in the column and created the clustered index as default.

Primary key will not allow NULL values.

-- Adding the NON NULL constraint
ALTER TABLE [TableName]	 
ALTER COLUMN PK_ColumnName int NOT NULL

--Script to add the primary key on the existing table
ALTER TABLE [TableName]
ADD CONSTRAINT pk_ConstraintName PRIMARY KEY (PK_ColumnName)

If you want to define or create the non-clustered index on the existing table, you can use the below script. If the data in the column is unique, you can create the Unique Constraint as well.

Unique Key enforces uniqueness of the column on which they are defined. Unique Key creates a non-clustered index on the column. Unique Key allows only one NULL Value.

--script to create non-clustered Index
create index IX_ColumName on TableName(ColumnName)
--script to create Unique constraint on the existing table
ALTER TABLE TableName ADD CONSTRAINT ConstraintName UNIQUE(ColumnName)

Posted in Database, SQL Server, SQL Server 2008, SQL Server 2008 R2, SQL Server 2011 (Denali) | Tagged: , , , , , , , , , , , , , , , | Leave a Comment »

Blog Stats

Posted by Jugal Shah on April 13, 2012

Blog Stats

SQLDBPool Blog Stats

Posted in SQL Server | 2 Comments »

Again Awarded as MVP for 2012-2013

Posted by Jugal Shah on April 1, 2012

Dear Friends,

I want to share a good news with you all, I am again 3rd time awarded as MVP in SQL Server. Thanks for reading my site, I will keep posting the best article and always there to solve your queries.

Thanks,
Jugal Shah

You will see the 2012 in below award shortly -:)

Posted in SQL Server | 7 Comments »

Using PowerShell to Register All SQL Instances Into Central Management Server

Posted by Jugal Shah on March 29, 2012

Problem

Managing multiple SQL Servers has its challenges. One of the big challenges is having to collect data from each of the servers you manage and figure out which servers need attention. SQL Server has introduced a new feature called Central Management repository which can be used to manage multiple instances. One of the challenges to using CMS is that you have to register all the SQL Servers manually into CMS.  The below article will guide you on how to register hundreds of servers in a second for SQL Server CMS.

Solution

http://www.mssqltips.com/sqlservertip/2658/using-powershell-to-register-all-sql-instances-into-central-management-server/

Posted in SQL Server 2008, SQL Server 2008 R2 | Tagged: , , , , , | 1 Comment »

Bug Fix: Property IsLocked is not available for Login ‘[sa]‘. This property may not exist for this object, or may not be retrievable due to insufficient access rights

Posted by Jugal Shah on March 28, 2012

Problem: Property IsLocked is not available for Login ‘[sa]‘. This property may not exist for this object, or may not be retrievable due to insufficient access rights. (Microsoft.SqlServer.Smo)

 

Solution: You will get the above error, in case of one of the below issue.

  1. SQL Server authentication mode is Windows Only
  2. SA Account is disable
  3. SA account is locked

SQL Server authentication mode is Windows Only

You can check the SQL Server authentication mode using below query.

SELECT
CASE
SERVERPROPERTY(‘IsIntegratedSecurityOnly’)

WHEN 1 THEN
‘Windows Authentication’

WHEN 0 THEN
‘Windows and SQL Server Authentication’

END
as [Authentication Mode]

If the authentication mode Windows, you have to change the authentication mode is Mix Mode. You can change the authentication mode by right click on Server Properties -> Security tab.
This requires SQL Server Service restart.

SA Account is locked/Disable

You can execute below query to check whether SA account is locked or not. If the account is locked it will return 1 and 0 for un-locked.

SELECT
LOGINPROPERTY(‘sa’,
‘IsLocked’)

You can investigate whether SA account is locked by bad Password using below query. It will return the count of consecutive failed login attempts

SELECT
LOGINPROPERTY(‘sa’,
‘BadPasswordCount’);

GO

Right click on SA account and check the SA account properties, check the below properties of the SA login whether it is disabled or locked.

Execute the below script to unlock and enable the SA account

ALTER
LOGIN [sa] WITH
PASSWORD=N’Password’,

DEFAULT_DATABASE=[master],

DEFAULT_LANGUAGE=[us_english],

CHECK_EXPIRATION=OFF,

CHECK_POLICY=OFF

GO

ALTER
LOGIN [sa] ENABLE

GO

Posted in SQL Server | 1 Comment »

How to setup schedule Maintenance Plan?

Posted by Jugal Shah on March 24, 2012

Step 1: Launch SQL Server Management Studio and In the Object Explorer expand the Management folder.

Step 2: Right click on the Maintenance Plans folder and select New Maintenance Plan.

 

Step 3: Give the meaning full name to maintenance plan.


 

Step 4: From the Toolbox drag and drop a Check Database Integrity Task, Rebuild Index Task, Update Statistics Task and place them vertically in the same order.

Step 5: Connect the tasks together by dragging the arrow from one box to the other so they are connected as: Check Database Integrity Task – Rebuild Index Task – Update Statistics Task.


Step 6 Right click on the each tasks and select the databases in maintenance plan.

Step 7 Schedule a maintenance plan to run in off business hours.

 


 

Posted in SQL Server | 1 Comment »

How to check the Index Fragmentation in SQL Server?

Posted by Jugal Shah on March 24, 2012

Step 1: Launch SQL Server Management Studio.

Step 2: In the object explorer, right click on the database and select Reports -> Standard Reports -> Index Physical Statistics.

Step 3: SQL Server Management Studio will generate a report showing information about the Table Names, Index Names, Index Type, Number of Partitions and Operation Recommendations.

Step 4: Repeat the above steps to check the fragmentation of all user databases.

 

One key value that is provided in the report is the Operation Recommended field. Any value of Rebuild is an indication that the index is fragmented.

By expanding the # Partitions field, you can see the % of fragmentation for a given index.

 

Report looks like below.

Posted in SQL Server | Leave a Comment »

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