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## Example files for the title:  

# Microsoft SQL Server 2012 Certification - Exam 70-461, by Mark Long

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--Let's use SELECT INTO to create a 

--table to run a few DELETE examples

SELECT TOP 25 LastName, FirstName INTO DeleteExample

FROM Person.Person

--Take a look at the new table

select * from DeleteExample

--Let's run a simple, dangerous DELETE query

DELETE FROM DeleteExample

--Oh, no! The message says that 25 rows were deleted!

--We didn't use a WHERE clause...

--Let's reload our table with data using INSERT SELECT

INSERT INTO DeleteExample

SELECT TOP 25 LastName, FirstName FROM Person.Person

--Verify the data was loaded into the table

select * from DeleteExample

--Now let's use DELETE to remove only the records

--for Kim Abercrombie

DELETE FROM DeleteExample

WHERE LastName='Abercrombie' AND FirstName='Kim'

--A trick for using DELETE without being surprised!

--Write the DELETE statement as a SELECT statement 

--Execute it and see how many rows are returned...

--THEN convert it to a DELETE and execute it!

--

--We want to DELETE records for Ben Adams

--So we'll first write the command as a SELECT

SELECT

LastName, FirstName 

FROM DeleteExample

WHERE LastName='Adams' AND FirstName='Ben'

--Looks good, now lets make it a DELETE statement

--Highlight SELECT LastName,FirstName and change it to the following

--then execute it

DELETE

FROM DeleteExample

WHERE LastName='Adams' AND FirstName='Ben'

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