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keywords count

Posted on 2014-01-29
Medium Priority
Last Modified: 2014-01-29
Dear all,
I have this table @KeyWords ( word, Count)
how to add all rows in @KeyWords  to another Table @AnotherKeyWords (word, Count)
if the word not exist in @AnotherKeyWords.

but if the word exist in @AnotherKeyWords   then @AnotherKeyWords .Count=@AnotherKeyWords .Count+@KeyWords.Count

Question by:ethar1
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Assisted Solution

aplusexpert earned 200 total points
ID: 39817388
Execute the following two queries:

Query1: add all rows in @KeyWords  to another Table @AnotherKeyWords (word, Count)
if the word not exist in @AnotherKeyWords:

INSERT INTO @AnotherKeyWords
FROM SELECT @KeyWords.Word, @KeyWords.COUNT FROM @KeyWords WHERE @KeyWords.Word NOT IN (SELECT @AnotherKeyWords.Word FROM @AnotherKeyWords)

Query2: if word exist in @AnotherKeyWords then @AnotherKeyWords .Count=@AnotherKeyWords .Count+@KeyWords.Count

FROM @AnotherKeyWords AKW INNER JOIN @KeyWORDS ON AKW.Word = @KeyWords.Word

(The inner join will ensure that only when Word is there in both tables, then COUNT will be updated).
LVL 12

Accepted Solution

Harish Varghese earned 1800 total points
ID: 39817397
First do an update of the count in @AnotherKeyWords table for the matching words
And then insert the additional words from @KeyWords table along with count to @AnotherKeyWords.

Update AK
SET AK.Count = AK.Count + K.Count
From @AnotherKeyWords AK, @KeyWords K
Where AK.Word = K.Word

Insert into @AnotherKeyWords (Word, Count)
Select Word, Count
From @KeyWords K
Where Not Exists (Select 1 from @AnotherKeyWords AK Where AK.Word = K.Word)


Author Closing Comment

ID: 39817414
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