I want to create a SQL Select query with calculated fields to show a Trend column

Hi Experts,

I am just creating a SQL query using sql server 2012. I want to convert my data for a SSRS report. my sql is not great hence why I am asking the question. I believe and easy answer?  I am creating a report and rather than do the calculated field in the ssrs report (which I believe would cause more overhead/performance decrease) I want to create a trend column in the SQL select query.

I will need to cast first. The values are stored as varchar. They will only be whole numbers however. but maybe Nulll.

I want to compare two columns. e.g. Table1.ColumnA and table2.ColumnB.

The output I want is weather it is positive, negative, no change or no previous value.

or if easier. a whole number which shows either positive/negative/zero or Null.

Many thanks,
Papa1NZAsked:
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Vikas GargBusiness Intelligence DeveloperCommented:
Hi,

You can do like this

SELECT 
 [b]CASE 
 WHEN CONVERT(INT,B.FIELD)-CONVERT(INT,A.Col1) > 0 THEN 1
 WHEN CONVERT(INT,B.FIELD)-CONVERT(INT,A.Col1) =  0 THEN 0
 WHEN CONVERT(INT,B.FIELD)-CONVERT(INT,A.Col1) < 0 THEN -1
  ELSE NULL END[/b]
 
  FROM table1 A INNER JOIN table2 B ON ---- 

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Papa1NZAuthor Commented:
Works great thanks
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