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Leave your work at the right place (OFFICE)

Life is good..

Before i dedicated this blog to my interest in IT, currently I am not as update as before. So you’ll see that I am going to write random things.. Such as life, my thought, or anything cross my mind

CREATE table Logtable
(username varchar(2000), Modify_Date datetime, ProcName varchar(2000))

Then I create the Trigger

CREATE TRIGGER safety
ON DATABASE
FOR ALTER_PROCEDURE
AS
declare @name varchar(200)

--look for the object with stored procedure type that has the last modify time.
set @name = (select  top 1 Name from sys.all_objects
where type_desc like 'SQL_STORED_PROCEDURE'
order by modify_date desc)

--insert the information u need to log table
INSERT INTO Logtable (UserName, Modify_Date, ProcName)
select suser_name(), getdate(), @name

create  a dummy proc for testing and alter it for testing the trigger

create procedure JustAProc
as
select 'JustAProc'
go

ALTER procedure JustAProc
AS BEGIN
PRINT 'X'
END

see the content of the log

select * from Logtable

and just drop it after you finish play with it

DROP TRIGGER safety
ON DATABASE;
go
DROP PROCEDURE JustAProc
GO
Drop Table Logtable

The structure is like

Aa.. just head to the query then to make this shorter.

CREATE TABLE #StudentScore (Name varchar(20), Class Char(2), Score int)

insert into #StudentScore (Name, Class, Score)
select 'Zee', '1a', 99 UNION ALL
select 'Arni', '1b', 98 UNION ALL
select 'Cukiyem', '1a', 55 UNION ALL
select 'Alfaredo', '1c', 78 UNION ALL
select 'Gilda', '1b', 88 UNION ALL
select 'Moore', '1a', 87 UNION ALL
select 'RiyanT', '1a', 90 UNION ALL
select 'Melissa', '1b', 98 UNION ALL
select 'Ninoood', '1c', 95

select * from #StudentScore

Ahaha that easy just use max

select Name, class, MAX(score) as 'The Highest'
from #StudentScore
group by Name, Class

Why why why it don’t produce the right result? hehe cause you group it by the name and class. Hmm…
Let’s Find the highest first in every Class

select Class,  MAX(score) AS Score
from #StudentScore
group by Class

Ahaaaa….

SELECT A.name, A.Class, A.Score as 'The Highest'
from #StudentScore A
JOIN (select Class,  MAX(score) AS Score
 from #StudentScore
 group by Class
 ) B ON A.Class = B.Class AND A.Score = B.Score

Or use CTE

;WITH CTE AS (
SELECT Name, Class, Score,
ROW_NUMBER() OVER (PARTITION BY Class Order by Score DESC) AS RN
FROM #StudentScore
)SELECT Name, Class, Score FROM CTE
 WHERE RN = 1;

wait why we can see melissa in class 1b?  please see below

SELECT Name, Class, Score,
ROW_NUMBER() OVER (PARTITION BY Class Order by Score DESC) AS RN
FROM #StudentScore

why melissa is grade as number 2 in class 1b? because row number sort the score based on score
and when they found two same score it’ll sort again by name. And A comes first.
so how to have this with CTE. Use Dense Rank!

SELECT Name, Class, Score,
Dense_rank() OVER (PARTITION BY Class Order by Score DESC) AS RN
FROM #StudentScore

Now we have Melissa and Arni in the same position
tadaaaa.

;WITH CTE AS (
SELECT Name, Class, Score,
Dense_rank() OVER (PARTITION BY Class Order by Score DESC) AS RN
FROM #StudentScore
)SELECT Name, Class, Score FROM CTE
 WHERE RN = 1;

I present to You…

Report For Miss Jones..

This is quite an often question asked by people.
There are 2 options. Create a stored procedure with 2 steps something like. It’ll insert the last value inserted to table A to table B

CREATE PROCEDURE InsertInsert

AS BEGIN

declare @id int
Insert to table A
select 'A', 'B'

--take the last id inserted
SET @id = @@identity

GO

Insert to table B
Select Col1, Col2 from Table A
where ID = @id

END

or you can use trigger.

CREATE TRIGGER InsertToOtherTable
ON TableSource
AFTER INSERT
AS
INSERT INTO TableB
SELECT Col1, Col2
FROM INSERTED

BOL

select pr.name as LoginName, state_desc,  permission_name as PermissionTo , s.name as schemaName, o.Name
from sys.database_permissions p
inner join  sys.objects o on  p.major_id =o.object_id
inner join sys.schemas s on o.schema_id=s.schema_id
inner join sys.database_principals pr on grantee_principal_id=pr.principal_id

LoginName  state_desc       PermissionTo  schemaName           Name
User1              GRANT            EXECUTE            dbo                       USP_A
User2              GRANT            EXECUTE             dbo                      USP_B

CREATE TABLE #Customer(
ID INT IDENTITY NOT NULL PRIMARY KEY,
Name VARCHAR(40) NOT NULL
)
GO
-- Inserting values into #Customer table.
INSERT INTO #Customer(Name) VALUES ('Jake')
INSERT INTO #Customer(Name) VALUES ('Suzan')
INSERT INTO #Customer(Name) VALUES ('Marry')
INSERT INTO #Customer(Name) VALUES ('Sally')
GO

-- Accidentaly delete Marry (oh nooo I just want to add Marry's Maiden name!?!?!)
DELETE #Customer
WHERE Name = 'Marry'
GO

SELECT *
FROM #Customer
GO

-- Try to insert Marry again to ID 3;
-- got an error.
INSERT INTO #Customer (ID, Name) VALUES (3, 'Marry Marc')
GO
-- SET IDENTITY_INSERT to ON.
SET IDENTITY_INSERT #Customer ON
GO

-- Try to insert an explicit ID value of 3.
INSERT INTO #Customer (ID, Name) VALUES (3, 'Marry Marc')
GO

SELECT *
FROM #Customer
GO

--Don't forget to set the identity insert back off. 
SET IDENTITY_INSERT #Customer OFF
GO

-- Drop Customer table.
DROP TABLE #Customer
GO

Huraaah!!

How do you do it?

here’s the input :

declare @time datetime
set @time = '01:45:00.000'

This is the first method, the idea is using datepart function to get the hour part and minute part of the data and multiply the hour by 60 then add it with the minute part.

select datepart(hour,@time) AS hour, datepart(MINUTE,@time) AS min,
datepart(hour,@time)*60 +datepart(MINUTE,@time) As Duration

the 2nd method, I like this one better cause it’s simpler. The idea is looking the difference in minutes from 00:00:00.000 represented by 0 to the data..

Select DATEDIFF(minute, 0, @time) As Duration

here’s simple script to produce the same error and the solutiooooon (at least it worked for me )

declare @i int
set @i = 3

declare @x int
set @x = 6

Select case when @i >8  OR @i <@x
then NULL
END AS 'Derived Column'
----error :Msg 8133, Level 16, State 1, Line 7
----None of the result expressions in a CASE specification can be NULL.

ALTERNATIVE :

Select case when @i >8  OR @i <@x
then 'Something' --different value
END AS 'Derived Column'

Why It Worked  : because you assign one of the value to varchar so sql thought ok the null is varchar, follow the other value)
second alternative :

Select case when @i >8  OR @i <@x
then NULL
Else 'X' -- put dummy thingy
END AS 'Derived Column'

Why it worked : It Worked because you don’t even try to assign it to NULL value

But but I need to assign it to NULL and no other value and I don’t want and else..

AHAAA…

Select case when @i >8  OR @i <@x
then cast(NULL as int)
END AS 'Derived Column'

why why ? here you cast the result to a datatype (here i cast it to int, sql is no longer confuse)..

No nooo.. I want assign it to a varchar then so be it..

Select case when @i >8  OR @i <@x
 then convert(varchar(10),NULL)
 END AS 'Derived Column'

DECLARE @DateWithDateTime DATETIME
SET @DateWithDateTime = '2010-09-08 00:00:00:00'

DECLARE @Date varchar(200)
SET @Date = (SELECT CONVERT(VARCHAR(20), @DateWithDateTime, 120))

SELECT CONVERT(VARBINARY(100), @Date)AS theVarbinary
--theVarbinary
--0x323031302D30392D30382030303A30303A30303A3030

SELECT convert(VARCHAR(200),CONVERT(VARBINARY(100), @Date)) AS BackTodate
--BackTodate
--2010-09-08 00:00:00:00

hey where is back to datetime.. hahaha it’s just to complete the cycle(feels good)..