Multiple Seartch paremeter

When ever you work on a search procedure with optional parameter,it will be helpful

Select col1,col2,.......coln from table_name where
(nullif(@col1,0) is null or(@col1>0 and col1 = @col1)
and (nullif(@col2,'') is null or col2=@col2)
and (nullif(@col3,'') is null or col3=@col3)

Grant or Revoke Permissions for all the table

To Grant or Revoke permission for all the objects at a single stroke

Exec sp_MsForEachTable 'Grant Select on ? to Guest'

Remember it will be work for Ms-sql 2005 or more, if 2000 it can be achieved by using while and dynamic sql.

Ms-sql Stored Procedure Manual

After we crate a procedure its must to give the manual to the front end team to make a use of it.

Creating the procedure manual is not a easy task for a bulk amount of procedures. I face this once, to make the work smarter just run the query

select o.name as procedure_name,p.name as parameter,t.name +'('+ cast(p.max_length as varchar(5))+')' as Data_type
from sys.objects o inner join sys.parameters p on o.object_id=p.object_id
inner join sys.types t on p.system_type_id=t.system_type_id
where o.type='p'

Check whether the time slot is availble?

We face the problem to do some time based or reservation , to check whether the time slot is available or not.

This script will help to do it better and quicker.


Declare @mytable table (id int,fromtime smalldatetime,totime smalldatetime)

insert into @mytable values (1,'2009-08-20 08:00:00','2009-08-20 12:00:00')


if not exists (select 'x' from @mytable where '2009-08-20 07:00:00' between fromtime and totime)
begin

print 'Insert statement'

End

Random varchar Password generation in My-Sql and Ms-Sql

The simplest way to generate random passwords


Ms-Sql

SELECT LEFT(NEWID(),8)


My-Sql


SELECT Left(MD5(RAND()),8) AS password

Getting the total row count of a table without count()

The count(*) or count(pk) will be slow for large tables.

The alternate way to archive this as fast

Mssql-2000

SELECT rows
FROM sysindexes
WHERE object_name(id) = 'table_name'
AND indid =0


Mssql -2005 or more

SP_SPACEUSED table_name

Truncate all the table in a DB (MS-Sql 2000 & MS-Sql 2005)

Ms-Sql 2000

declare @SQL varchar(8000)

set @SQL = ''

select @SQL = @SQL + ' truncate table ' + name from sysobjects where type = 'U' and name <> 'dtproperties'

exec(@SQL)

Ms-Sql 2005

Exec sp_MsForEachTable 'TRUNCATE TABLE ?'