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Tag: SQL Server

  • Prevent Truncation of Dynamically Generated Results in SQL Server Management Studio

    Problem
    While working with the Results to Text option in SSMS, you may come across a situation where the output from dynamically generated data is truncated. In this article I will guide you on how to fix this issue and print all the text for the Results to Text option.

    Solution
    http://www.mssqltips.com/sqlservertip/2795/prevent-truncation-of-dynamically-generated-results-in-sql-server-management-studio/

  • Error: Database diagram support objects cannot be installed

    There will be situation while creating the database diagram, you got the below error message.

    Database diagram support objects cannot be installed because this database does not have a valid owner. To continue, first use the Files page of the Database Properties dialog box or the ALTER AUTHORIZATION statement to set the database owner to a valid login, then add the database diagram support objects.

    Above error is self explanatory where it is stating that the “set the database owner to valid login” To fix the issue please follow below one of the solution.

    Solution 1:
    Execute the below script by mentioning the database name.

    ALTER AUTHORIZATION ON DATABASE::MentionDatabaseName TO sa
GO

    OR, you can change the owner by executing the below query.

    EXEC sp_changedbowner 'sa'

    Solution 2:
    Right Click on the database -> Database Properties -> click on files page -> change the owner to SA

  • Script to find out the database file size, log file size on SQL Server 2000/2005/2008

    Recently I encountered a situation where i have to find out the database file size on SQL Server 2000. Here is the script which you can use to run on SQL Server 2000. Below script will on SQL Server 2005 or SQL Server 2008 as well.

    You can use sys.master_files instead of sysAltfiles in SQL Server 2005 and SQL Server 2008. Please find all the different scripts below.

    --SQL Server 2000

select 
fileID 
,name
,filename
,(size*8)/1024 SizeMB
,((size*8)/1024)/1024 SizeGB
,db_name(dbid) as DBName
from sysaltfiles
where db_name(dbid) = 'master'

--SQL Server 2000

select 
fileID 
,name
,filename
,(size*8)/1024 SizeMB
,((size*8)/1024)/1024 SizeGB
,db_name(dbid) as DBName
from sysaltfiles
where filename like '%.ldf%'

--SQL Server 2005/2008
SELECT DB_NAME(database_id) AS DBName,
Name AS LogicalName,
Physical_Name, (size*8)/1024 SizeMB
Physical_Name, ((size*8)/1024)/1024 SizeGB
FROM sys.master_files
WHERE DB_NAME(database_id) = 'Master'
GO

  • Different ways to make a table read only in a SQL Server database

    Problem

    In some cases there may be a need to make a SQL Server table read only. There are several different options for doing this and in this tip we cover various ways that you can make a table read only in a SQL Server database.

    Solution

    http://www.mssqltips.com/sqlservertip/2711/different-ways-to-make-a-table-read-only-in-a-sql-server-database/#comments

  • Script to Create Foreign Key on the Compound Primary Key

    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')