• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 679
  • Last Modified:

How to extract TABLENAMES from the ROUTINE_DEFINITION field in Stored Procedures?

What is the best function to use in order to extract the TABLENAMES that are used within a Stored Procedure's SQL Logic?


Here is the script that pulls the ENTIRE contents of the sprocs logic, as seen inthe ROUTINE_DEFINITION field:
select SPECIFIC_CATALOG as [Database], specific_schema as [Schema], SPECIFIC_NAME as [StoredProcedureName], ROUTINE_DEFINITION as [StoredProcLogic],created  as [DateCreated], LAST_ALTERED  as [LastAltered]
  from [Your_Database].information_schema.routines
 where routine_type = 'PROCEDURE'
   and Left(Routine_Name, 3) NOT IN ('sp_', 'xp_', 'ms_')

Of course its a TEXT field and I just need to know the best approach in trying to get each TABLENAME to display in a separate column. All tables in one column is ok with me....

Thx
0
MIKE
Asked:
MIKE
1 Solution
 
Guy Hengel [angelIII / a3]Billing EngineerCommented:
From the routine text there is no simple way... consider comments, dynamic sql....
Also usages of views and other procedures will not make it easier.
Why do you want to do this?
0
 
MIKESoftware Solutions ConsultantAuthor Commented:
All I'm asking is what FUNCTION is easiest to pull tablenames from this TEXT Field.

ie. SUBSTRING()??, CHARINDEX()??

The text is basically SQL SCRIPTS that contain the standard SELECT, FROM, WHERE syntax. I would like to use a function to find the "FROM" section of each SQL Script and extract WHATEVER comes after that "FROM" clause, realizing that there are also "LEFT/INNER" JOINS etc...

Any Expert commments/input would be greatly appreciated.

Oh and the reason I need this is I'm on a project of REFACTORING an entire Data Warehouse/Data Mart over to a totally new Data Warehouse and need to MAP ALL TABLES AND FIELDS from one DW to another DW.....

thanks
0
 
ZberteocCommented:
The best way is to use LIKE:
declare 
	@str_to_search varchar(8000)='TableName'

select r.ROUTINE_SCHEMA as [SCHEMA], r.ROUTINE_NAME as [OBJECT_NAME], r.ROUTINE_TYPE as [OBJECT_TYPE],r.ROUTINE_DEFINITION CODE from INFORMATION_SCHEMA.ROUTINES r where r.ROUTINE_DEFINITION like '%'+@str_to_search+'%'

Open in new window

You then put this code in a loop that will go through all the tables in a database which you can get from:
select TABLE_NAME from INFORMATION_SCHEMA.TABLES where TABLE_TYPE='BASE TABLE' order by 1

Open in new window

0
Free learning courses: Active Directory Deep Dive

Get a firm grasp on your IT environment when you learn Active Directory best practices with Veeam! Watch all, or choose any amount, of this three-part webinar series to improve your skills. From the basics to virtualization and backup, we got you covered.

 
MIKESoftware Solutions ConsultantAuthor Commented:
Thank you for yout input, but ... I'm actually seeking code that will FIND the TABLENAME within the ROUTINE_DEFINITION field and then display this TABLENAME(s) is a separate column. Make sense?

I need something like this:

select SPECIFIC_CATALOG as [Database]
, specific_schema as [Schema]
, SPECIFIC_NAME as [StoredProcedureName]
, ROUTINE_DEFINITION as [StoredProcLogic]
,created  as [DateCreated]
, LAST_ALTERED  as [LastAltered]
, *** 'some crazy text search logic HERE' as [TableName from SPROC] ***
  from [Your_Database].information_schema.routines
 where routine_type = 'PROCEDURE'
   and Left(Routine_Name, 3) NOT IN ('sp_', 'xp_', 'ms_')

Hope it makes sense, I need to EXTRACT the TableName(s) that are found within the FROM clause of each SQL Script within a Stored Procs logic text. Extract it and place it in its own column....
0
 
SharathData EngineerCommented:
Look into the DMVs to get the dependent objects inof.
sys.sql_expression_dependencies
http://technet.microsoft.com/en-us/library/bb677315.aspx

sys.dm_sql_referencing_entities
http://technet.microsoft.com/en-us/library/bb630351.aspx

sp_depends
http://technet.microsoft.com/en-us/library/ms189487.aspx
0
 
MIKESoftware Solutions ConsultantAuthor Commented:
Sharath,

You're a ROCKSTAR! This is exactly the kind of information that I was looking for!

I'll be using this specific link:
sp_depends
http://technet.microsoft.com/en-us/library/ms189487.aspx 

MANY Thanks for responding!
0

Featured Post

Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now