How to use Print & RaiseError in TSQL

Hi,
I am writing some TSQL procedures to extract data.. I wish to know progress within my procedure  so using print stmt. I have used dbms_output.print_line under Oracle SQL. I though print here does the same job but I am not receiving any output at SSMS.

Do I need to use raiseerror? Please explain with examples.

Thanks
crazywolf2010Asked:
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Scott PletcherSenior DBACommented:
In general PRINT will work.

Keep in mind, if you PRINT null, it will look like a blank line (you won't actually see any output).
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crazywolf2010Author Commented:
Anyone who can send me an TSQL examples?
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Scott PletcherSenior DBACommented:
--Example:

DECLARE @varchar_var varchar(40)
DECLARE @varchar_var2 varchar(40)
DECLARE @int_var int

PRINT @int_var
PRINT @varchar_var + ' / ' + @varchar_var2
PRINT @varchar_var + ' / ' + CAST(@int_var AS varchar(10))


You can directly PRINT any single variable.

You can directly PRINT a concatenation of varchar variables.

If you want to concatenate numeric values for PRINTing, you must explicitly convert them to [var]char.
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crazywolf2010Author Commented:
Hi,
I ran above code but there were no ouput at MS SQL server studio. Where does print will print?
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Scott PletcherSenior DBACommented:
Shows in the window below the query.  When there's output, the output/results window should be shown, unless it's hidden.  You can press Ctrl-R to toggle the results window view on/off.
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crazywolf2010Author Commented:
Please see attached snap here.
MSSM.gif
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Scott PletcherSenior DBACommented:
Click on the "Results" tab to move the focus off the "Messages" tab.
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crazywolf2010Author Commented:
There is no results tab displayed. I do see results for other queries but not for PRINT queries.
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Anthony PerkinsCommented:
1. The PRINT statements show on the Messages tab and not the Results tab.
2. The reason you are not getting any output is because all three values result in NULLs
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Anthony PerkinsCommented:
See for yourself (fix the obvious typo in xDECLARE):
xDECLARE @varchar_var varchar(40)
xDECLARE @varchar_var2 varchar(40)
xDECLARE @int_var int

SET @varchar_var = 'Test String'
PRINT '@int_var: ' + ISNULL(CAST(@int_var AS varchar(10)), 'NULL')
PRINT '@varchar_var +  /  + @varchar_var2: ' + ISNULL(@varchar_var + ' / ' + @varchar_var2, 'NULL')
PRINT '@varchar_var +  /  + CAST(@int_var AS varchar(10)): ' + ISNULL(@varchar_var + ' / ' + CAST(@int_var AS varchar(10)), 'NULL')

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Microsoft SQL Server 2008

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