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A list of one owl's 5 favourite system stored procedures in SQL! Part two of a six-part series of blogs
Everyone has a favourite system stored procedure (you do, don't you?). But five? That's the subject of this blog, anyway. My 5 favourite SQL system stored procedures! Listing the contents of a procedure or function (sp_helptext) (this blog) Using sp_datatype_info to get the data type of a variable Which tables/procedures depend on which? (sp_depends) Listing the columns in a table (sp_columns) Using sp_help to get help on a table, procedure, column, etc

A list of one owl's 5 favourite system stored procedures in SQL!

Part two of a six-part series of blogs

Everyone has a favourite system stored procedure (you do, don't you?). But five? That's the subject of this blog, anyway.

My 5 favourite SQL system stored procedures!
Listing the contents of a procedure or function (sp_helptext) (this blog)
Using sp_datatype_info to get the data type of a variable
Which tables/procedures depend on which? (sp_depends)
Listing the columns in a table (sp_columns)
Using sp_help to get help on a table, procedure, column, etc

Posted by Andy Brown on 03 February 2017

Listing the contents of a procedure or function (sp_helptext)

This has to be the most fun system stored procedure, although maybe I just think so because I don't get out enough. Let's suppose you've created a stored procedure:

CREATE PROC spExample

-- list out all films

SELECT

f.Title

, f.OscarWins AS Oscars

, f.RunTimeMinutes AS RunTime

FROM

Film AS f

ORDER BY

f.Title

You now want to find all the lines containing commas. So you use sp_helptext:

-- analyse this procedure

sp_helptext 'spExample'

The results are a bit weird:

The lines which comprise your stored procedure!

You could put the results in a temporary table, and use this to show all the lines containing commas:

DECLARE @lines TABLE(

LineText VARCHAR(MAX)

)

-- put lines of procedure into table

INSERT INTO @lines

EXEC sp_helptext 'spExample'

-- now show lines beginning with commas

SELECT

LineText

FROM

@lines

WHERE

LineText LIKE '%,%'

The results are impressive:

The two lines containing commas.

I'm not QUITE sure how you'd use this information, but sometimes the fun is in the answer, not how it's used! For how to write your own stored procedures, consider booking a place on our Advanced SQL course.

Parts of this blog
My 5 favourite SQL system stored procedures! Listing the contents of a procedure or function (sp_helptext) (this blog) Using sp_datatype_info to get the data type of a variable Which tables/procedures depend on which? (sp_depends) Listing the columns in a table (sp_columns) Using sp_help to get help on a table, procedure, column, etc