How To Return A Numeric Value Based Upon If A Record Is Returned From My Query/Stored Proc.

Oct 2, 2007

 

I need to call the stored procedure below. Basically what I need to know is if the query returns a record?

Note I would be happy if I could just return the number Zero if no records are returned. Can someone please help me out here?
Here is my query so far in SQL Server. I just don't know how to return a value based upon the result of the records returned
from the query.

GO
CREATE PROCEDURE [dbo].[GetNameStatus]
(
 @CountryId decimal,
 @NameId decimal,
 @DescriptionId decimal
)
AS
 SELECT     Name.Active
 FROM       Name INNER JOIN
               NameDescription ON Name.NameId = NameDescription.NameId WHERE Name.CountryId=@CountryId AND
               Name.NameId=@NameId AND NameDescription.DescriptionId=@DescriptionId AND Name.Active='Y'

 

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Hi,

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Hi,
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(
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@ManCodevarchar(255),
@ProdCodevarchar(255),
@Pricedecimal(6,2),
@Commentsvarchar(255)
)
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GO

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Good morning, all,

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My dataflow has the following components:

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which points to a

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which points to a

Data Conversion Transformation, which takes care of all the datatype conversions

which points to a

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Oct 27, 2006

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This stored procedure worked fine until we recently upgraded to SQL Server Express (2005).

C++ code:

_bstr_t conn_str = CONN_STR;
conn_str += (LPCTSTR)_server_name;

try
{
_ConnectionPtr epi_conn;
_CommandPtr cmd("ADODB.Command");
_ParameterPtr param;
long addfg;
_variant_t var_addfg;

//
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//
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epi_conn->Open(conn_str,"","",adConnectUnspecified);

cmd->ActiveConnection = epi_conn;
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//
// setup stored procedure call
//
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cmd->Parameters->Append(param);
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param = cmd->CreateParameter (_bstr_t("@l_addfg"), adInteger, adParamOutput, 4);
cmd->Parameters->Append(param);

//
// debug output
//
if (trace_fp)
{
COleDateTime cur_dt = COleDateTime::GetCurrentTime();
fwprintf(trace_fp, L"%s - clsSrvrCtrlr::UpdWorkstation 1 client=%s",
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fflush(trace_fp);
}

cmd->Execute(NULL, NULL, adCmdStoredProc);

var_addfg = cmd->Parameters->Item[_variant_t("@l_addfg")]->Value;
addfg = var_addfg.iVal;

//
// done with stored proc
//
epi_conn->Close();

if (trace_fp)
{
COleDateTime cur_dt = COleDateTime::GetCurrentTime();
fwprintf(trace_fp, L"%s - clsSrvrCtrlr::UpdWorkstation 2 var_addfg.vt=%d, var_addfg.iVal=%d",
cur_dt.Format(), var_addfg.vt, var_addfg.iVal);
fflush(trace_fp);
}



and the stored proc:

set ANSI_NULLS OFF

set QUOTED_IDENTIFIER OFF

GO

-- Database Version 5.5.0

ALTER PROCEDURE [dbo].[qry_DBUpdWorkstation]

@s_computer_name nvarchar(31),

@l_addfg int OUTPUT

AS

SET NOCOUNT ON

DECLARE @d_update_dt datetime

DECLARE @l_msg_cd int

DECLARE @b_view_local bit

DECLARE @b_view_global bit

DECLARE @l_alert_type smallint

DECLARE @s_sound_file nvarchar(255)

DECLARE @l_wscd int

SELECT @d_update_dt=UpdateDT

FROM dbo.tblWorkstations

WHERE ComputerNameTxt=@s_computer_name

SET @l_addfg = 0

IF @d_update_dt IS NULL

BEGIN

INSERT tblWorkstations (ComputerNameTxt, UpdateDT, OnlineFg)

VALUES (@s_computer_name, GETDATE(), 0)

SET @l_wscd = SCOPE_IDENTITY()

DECLARE msg_cursor SCROLL CURSOR FOR

SELECT SysMsgCd, ViewLocalFg, ViewGlobalFg, AlertTypeVal, SoundFileTxt

FROM tblMsgAlerts

WHERE WorkstationCd = -1

OPEN msg_cursor

FETCH FIRST FROM msg_cursor INTO

@l_msg_cd, @b_view_local, @b_view_global, @l_alert_type, @s_sound_file

WHILE @@fetch_status = 0

BEGIN

INSERT tblMsgAlerts (WorkstationCd, SysMsgCd, ViewLocalFg, ViewGlobalFg, AlertTypeVal, SoundFileTxt)

VALUES (@l_wscd, @l_msg_cd, @b_view_local, @b_view_global, @l_alert_type, @s_sound_file)

FETCH NEXT FROM msg_cursor INTO

@l_msg_cd, @b_view_local, @b_view_global, @l_alert_type, @s_sound_file

END

CLOSE msg_cursor

DEALLOCATE msg_cursor

SET @l_addfg = 1

END

ELSE

BEGIN

UPDATE tblWorkstations

SET UpdateDT = GETDATE()

WHERE ComputerNameTxt=@s_computer_name

END



The stored proc ALWAYS returns 0 but will execute the code to insert the new row when not found and replicate the rows in the second table. Any ideas, suggestions?

Thanks

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I was looking at:

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Code Snippet


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3. String columns with alpha data works as expected
4. Problem only exist when running in Device Emulator and/or actual device.
5. Same test on desktop app runs as expected.
6. Windows Mobile 6, Vista Ultimate
7. Same results when when connection to device from SSMS
8. SQL Servers comes on

Previous thread discussion of this problem (I thought that Parameters corrected problem, but not in all cases???)

http://www.microsoft.com/communities/newsgroups/en-us/default.aspx?dg=microsoft.public.sqlserver.ce&mid=0cd9cd3a-f9b0-477f-b1e7-c27eb76158ae

Here is the complete code:


SqlCeConnection _conn = null;

_conn = new SqlCeConnection(@"Data Source=program FilesTestResultSetevsoft.sdf;");

_conn.Open();


// DOES NOT WORK *** This statement does not return the record (it exist)

string _sql = "SELECT * FROM Product where RegDescr='0123456' ";




// works correctly

string _sql = "SELECT * FROM PRODUCT where ProdNum = 6523 ";


// works correctly *** as long as multiple records are returned

string _sql = "SELECT * FROM PRODUCT where RegDescr LIKE '01%' ";

// works correctly


string _sql = "SELECT * FROM PRODUCT where RegDescr='BACARDI SILVER RAZZ'";

SqlCeCommand _cmd = _conn.CreateCommand();

SqlCeDataReader _rdr;

_cmd.CommandText = _sql;

_cmd.CommandType = CommandType.Text;

// Same results using ExecuteResultSet or ExecuteReader

//_rdr = _cmd.ExecuteResultSet(ResultSetOptions.Scrollable | ResultSetOptions.Updatable);

_rdr = _cmd.ExecuteReader();



listBox1.Items.Add("In the while loop");

while (_rdr.Read())

{

listBox1.Items.Add(_rdr.GetValue(1) + " / " + _rdr.GetValue(3));

}

listBox1.Items.Add("Done");

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Using OLEDB connection, I utilize SQL: EXEC ? = dbo.CheckCatLog

EXEC SQL Task Editer settings:
RESULTSET: Single Row
PARAMETER MAPPING: User::giBatchID
DIRECTION: OUTPUT
DATATYPE: LONG
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CREATE PROCEDURE CheckCatLog
@OutSuccess INT
AS

-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON
DECLARE @RowCountCAT INT
DECLARE @RowCountLOG INT

---these totals should match
SELECT @RowCountCAT = (SELECT Count(*) FROM mydb_Staging.dbo.S_CAT)
SELECT @RowCountLOG = (SELECT Count(*) FROM mydb_Staging.dbo.S_LOG)
--PRINT @RowCountCAT
--PRINT @RowCountLOG
BEGIN
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END
GO

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------------------------
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John | 02 October 2005 18:00
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------------------------------------------------------------------------------
------------------------------------------------------------------------------
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END
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END

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COMMIT TRAN
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-------------------------------------------------------------------------------------------
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