Sql on Chris McKelt - Remembering Thoughts

Invalid object name 'master.dbo.spt_values'.

Tue, 24 Aug 2010 00:00:00 +0800

“Invalid object name ‘master.dbo.spt_values’.”

This means your SQL Master DB is in a bad state.

To fix:

Error- Invalid object name ‘master.dbo.spt_values’.

“C:\Program Files\Microsoft SQL Server\MSSQL10.MSSQLSERVER\MSSQL\Install”

run u_tables.sql in master….

Integrated Security = SSPI -- Security Support Provider Interface

Tue, 29 Jun 2010 00:00:00 +0800

Using Integrated Security in connection strings should be either of the following:

Integrated Security=SSPI

Integrated Security=false

Not

Integrated Security=true

Obliterate Database

Thu, 10 Dec 2009 00:00:00 +0800

declare
 @vcFK varchar(250),
 @vcTable varchar(250),
 @vcSP varchar(250),
 @vcView varchar(250),
 @vcFn varchar(250)

-- ...drop all foreign key constraints
select @vcFK = min(name) from sysobjects where type='F'
while @vcFK is not null
begin
 print 'Dropping FK constraint ' + @vcFK

 -- ...get name of table corresponding to the foreign key
 select
 @vcTable = S2.name
 from
 sysobjects S1
 inner join sysconstraints C on S1.id = C.constid
 inner join sysobjects S2 on C.id = S2.id
 where
 S1.name = @vcFK and S1.type='F'

 exec ('alter table ' + @vcTable + ' drop constraint ' + @vcFK)
 select @vcFK = min(name) from sysobjects where type='F' and name > @vcFK
end

-- ...drop all tables
select @vcTable = min(name) from sysobjects where type='U' and name not like 'dt%'
while @vcTable is not null
begin
 print 'Dropping table ' + @vcTable
 exec ('drop table ' + @vcTable)
 select @vcTable = min(name) from sysobjects where type='U' and name not like 'dt%' and name > @vcTable
end

-- ...drop all our stored procedures
select @vcSP = min(name) from sysobjects where type='P' and (name like 'usp%')
while @vcSP is not null
begin
 print 'Dropping procedure ' + @vcSP
 exec ('drop procedure ' + @vcSP)
 select @vcSP = min(name) from sysobjects where type='P' and (name like 'usp%') and name > @vcSP
end

-- ...drop all views
select @vcView = min(name) from sysobjects where type='V' and name like 'v%'
while @vcView is not null
begin
 print 'Dropping view ' + @vcView
 exec ('drop view ' + @vcView)
 select @vcView = min(name) from sysobjects where type='V' and name like 'v%' and name > @vcView
end

-- ...drop all functions
select @vcFn = min(name) from sysobjects where type='FN' and name like 'udf%'
while @vcFn is not null
begin
 print 'Dropping function ' + @vcFn
 exec ('drop function ' + @vcFn)
 select @vcFn = min(name) from sysobjects where type='FN' and name like 'udf%' and name > @vcFn
end

SQL Server error handling

Fri, 11 Sep 2009 00:00:00 +0800

CREATE PROCEDURE AS BEGIN SET NOCOUNT ON BEGIN TRY
 --Do work
END TRY

BEGIN CATCH /* Note that catching and rethrowing an exception is a lossy operation. ERROR_PROCEDURE() etc will be reset. */ DECLARE @errorMessage NVARCHAR(4000); DECLARE @errorSeverity INT; DECLARE @errorState INT;
 SELECT @errorMessage = ERROR\_MESSAGE(),
@errorSeverity = ERROR\_SEVERITY() ,
@errorState = ERROR\_STATE();
--Perform required recovery actions.
RAISERROR ( @errorMessage, @errorSeverity, @errorState );
RETURN 1;
END CATCH

SQL Tricks

Thu, 31 Jul 2008 00:00:00 +0800

Delete all tables

EXEC sp_MSforeachtable @command1 = “DROP TABLE ?”

Grant execute permissions to all stored procedures to a specific user

`CREATE PROC grantexecutepermission( @UserName NVARCHAR(250)) AS DECLARE curse CURSOR  FOR SELECT name FROM   sysobjects WHERE  TYPE = 'P'`
OPEN curse
DECLARE  @proc VARCHAR(100)
DECLARE  @stmt NVARCHAR(200)
FETCH NEXT FROM curse INTO @proc
WHILE @@FETCH\_STATUS \= 0 BEGIN SET @stmt \= 'grant execute on ' + @proc + ' to ' + @UserName
EXEC sp\_executesql @STMT
PRINT @stmt
FETCH NEXT FROM curse INTO @proc END
CLOSE curse
DEALLOCATE curse