Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Is it possible to find the structure of a Global Table which is created in Proc A and referenced in Proc B

Posted on 2008-10-20
5
Medium Priority
?
211 Views
Last Modified: 2012-05-05
I have a global table created in proc A and then referenced in proc b.

I would like to know in Proc B, if the global table has a particular column, how can I do that
Proc A
INSERT INTO #Activity
EXEC dbdetails.dbo.Proc_B
    @TableName = @GlobalTableName_parm, 
    @ServerName = @@SERVERNAME,
    @UpdateFlag = 1,
    @SuccessFlag = @SuccessFlag OUTPUT
 
Proc_B
CREATE PROCEDURE Proc_B
    @TableName  varchar(100),
    @ServerName varchar(50),
    @UpdateFlag int,
    @SuccessFlag tinyint OUTPUT
AS
 
I would like to know the sql that I can excute to verify that @TableName  has a particular column say 'Test'

Open in new window

0
Comment
Question by:countrymeister
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
5 Comments
 
LVL 4

Expert Comment

by:randy_knight
ID: 22762570
What do you mean by global table?  A global temporary table (i.e. ##table)?
0
 
LVL 1

Author Comment

by:countrymeister
ID: 22762599
Yes , the global table is named ##TableA_spid
0
 
LVL 4

Expert Comment

by:randy_knight
ID: 22762775
I don't think there is an easy way to do that.  However, an altenative would be to create your global temp tables as hard tables in tempdb (i.e. tempdb.dbo.TableA_spid) and then drop them at the end of your process.  

Then you could used this to find the column:



if exists(select * from tempdb.dbo.syscolumns where id = object_id('TableA_spid' and name = 'test')
    print 'column exists'
else
    print 'column does not exist'

Open in new window

0
 
LVL 1

Author Comment

by:countrymeister
ID: 22762916
I am creating the global table as follows
SELECT @GlobalTableName = '##TableA_' + convert(varchar(10),@@spid)

SELECT @EXECSQLText = N'CREATE TABLE ' + @GlobalTableName
( col1, col2....)

I am droping them after I use them

But the following sql does not work to check if the column exists in the global table, where @TableName is the global table

Set @IncludeTaxes = 0
-- Check if the calling proc has passed the test column  to the  proc B
Set @IncludeTaxes = (SELECT Count(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = @TableName AND COLUMN_NAME = 'Test')
0
 
LVL 4

Accepted Solution

by:
randy_knight earned 2000 total points
ID: 22763480
Right.  Because INFORMATION_SCHEMA.COLUMNS won't have info on temporary tables.  What I am saying is create a "permanent" table in tempdb like this:

SELECT @GlobalTableName = 'TableA_' + convert(varchar(10),@@spid)

Then it will be in syscolumsn and the DSV above.
0

Featured Post

Complete VMware vSphere® ESX(i) & Hyper-V Backup

Capture your entire system, including the host, with patented disk imaging integrated with VMware VADP / Microsoft VSS and RCT. RTOs is as low as 15 seconds with Acronis Active Restore™. You can enjoy unlimited P2V/V2V migrations from any source (even from a different hypervisor)

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A Stored Procedure in Microsoft SQL Server is a powerful feature that it can be used to execute the Data Manipulation Language (DML) or Data Definition Language (DDL). Depending on business requirements, a single Stored Procedure can return differe…
Windocks is an independent port of Docker's open source to Windows.   This article introduces the use of SQL Server in containers, with integrated support of SQL Server database cloning.
Via a live example, show how to shrink a transaction log file down to a reasonable size.
Using examples as well as descriptions, and references to Books Online, show the documentation available for datatypes, explain the available data types and show how data can be passed into and out of variables.

715 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question