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How to return value of last autonum entered

 
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How to return value of last autonum entered, Using Scope_Identity
Nolan
post 20 Sep, 2008 - 12:32 PM
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I have an INSERT statement to create a new record and I would like to return the ID value from the newly created record. I believe I have to use the Scope_Identity() function but not sure how to actually write it out to my page after it's returned.
CODE

NEW_PSR_SQL="INSERT INTO tbl_PSRs (PSR_Date, PSR_Text, PSR_Calc_Value, PSR_Override_Value, Is_Override) VALUES ('"&PSR_Date &"','"&PSR_Text &"'," &PSR_Calc_Value &"," &PSR_Override_Value &"," &PSR_Is_Override &") SELECT NEWID = SCOPE_IDENTITY() "

set RsPSR=oConn.execute(NEW_PSR_SQL)
response.write  RsPSR(0) ' trying to return the last autonum from Scope_Identity() - not working


The insert is working fine, but the code to write out the new ID is not working.
Any ideas?
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Jayman
post 20 Sep, 2008 - 04:52 PM
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Which database are you working with?
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eclipsed4utoo
post 21 Sep, 2008 - 05:56 AM
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I use this with SQL Server 2005....

sql

SELECT cast(SCOPE_IDENTITY() as bigint) AS 'ColumnName'
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Nolan
post 21 Sep, 2008 - 07:52 AM
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Sorry - Using SQL Express 2005 backend and native .asp to execute the insert.

What I'm looking for is the specific syntax that will allow me to dislpay the last ID inserted.
I will try Eclipsed's code and let y'all know.
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Nolan
post 21 Sep, 2008 - 09:15 AM
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Ok so I'm sure I'm getting close but this is just not working:
CODE

PSR_ID_SQL="SELECT cast(SCOPE_IDENTITY() as bigint) AS tbl_PSRs"
set RsPSR_ID = oConn.execute(PSR_ID_SQL)
Response.write "The ID: " &RsPSR_ID(0)
response.end



The recordset appears to be empty, as nothing is displayed after the "The ID:" bit.

I'm getting around this right now by requerying the table for the highest value in the field immediately after insert, but I know this could lead to severe problems if someone creates a record between the insert and the query.
I really want to use Scope_Identity().

What am I missing?????????????????????????????????????????????????????
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Jayman
post 21 Sep, 2008 - 09:50 AM
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Try replacing SCOPE_IDENTITY() with @@IDENTITY.

CODE

NEW_PSR_SQL="INSERT INTO tbl_PSRs (PSR_Date, PSR_Text, PSR_Calc_Value, PSR_Override_Value, Is_Override) VALUES ('"&PSR_Date &"','"&PSR_Text &"'," &PSR_Calc_Value &"," &PSR_Override_Value &"," &PSR_Is_Override &") SELECT NEWID = @@IDENTITY "
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Nolan
post 21 Sep, 2008 - 09:52 AM
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I'll try that Jay, but I'm still unclear as to how I access that value with ASP...

Will it be returned as rs(0) ????
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weedweaver
post 22 Sep, 2008 - 02:29 AM
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QUOTE(Nolan @ 21 Sep, 2008 - 10:52 AM) *

I'll try that Jay, but I'm still unclear as to how I access that value with ASP...

Will it be returned as rs(0) ????


Try using execute scalar instead:

newID = objCommand.ExecuteScalar

Regards
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baavgai
post 22 Sep, 2008 - 03:28 AM
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Is this really ASP.NET? Looks like old style ASP from here.

You forgot a ";", e.g.
CODE

NEW_PSR_SQL="INSERT INTO tbl_PSRs (PSR_Date, PSR_Text, PSR_Calc_Value, PSR_Override_Value, Is_Override) VALUES ('"&PSR_Date &"','"&PSR_Text &"'," &PSR_Calc_Value &"," &PSR_Override_Value &"," &PSR_Is_Override &"); SELECT SCOPE_IDENTITY() "


Also, avoid @@IDENTITY if you can help it. Basically, the older @@IDENTITY has a chance to get confused during multiple transactions. More here.
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eclipsed4utoo
post 22 Sep, 2008 - 04:33 AM
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QUOTE(baavgai @ 22 Sep, 2008 - 07:28 AM) *

Is this really ASP.NET? Looks like old style ASP from here.

You forgot a ";", e.g.
CODE

NEW_PSR_SQL="INSERT INTO tbl_PSRs (PSR_Date, PSR_Text, PSR_Calc_Value, PSR_Override_Value, Is_Override) VALUES ('"&PSR_Date &"','"&PSR_Text &"'," &PSR_Calc_Value &"," &PSR_Override_Value &"," &PSR_Is_Override &"); SELECT SCOPE_IDENTITY() "


Also, avoid @@IDENTITY if you can help it. Basically, the older @@IDENTITY has a chance to get confused during multiple transactions. More here.


agreed. I have gotten caught using the @@IDENTITY.
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Nolan
post 23 Sep, 2008 - 08:32 PM
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Yup. Ya got me. Plain old .asp.

Don't see a link to that forum on the left tho... thought maybe someone would have an idea in this forum.

I have read TONS about @@identity etc... vs. Scope_Identity() and I know enough to use Scope_Identity in this particular situation.

All I'm really looking for is some code.. probably very simple...

I have a data connection.
I have a select statement.
I do not have the last record Just Entered.

If anyone has EVER done this in the past, and would like to share the one line of code I am looking for, I'd really appreciate it.
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