SQL 2012 :: Select Statements And Ended Up Seeing Multiple Cached Instances Of Same Stored Procedure
Nov 24, 2014
I ran the below 2 select statements and ended up seeing multiple cached instances of the same stored procedure. The majority have only one cached instance but more than a handful have multiple cached instances. When there are multiple cached instances of the same sproc, which one will sql server reuse when the sproc is called?
SELECT o.name, o.object_id,
ps.last_execution_time ,
ps.last_elapsed_time * 0.000001 as last_elapsed_timeINSeconds,
ps.min_elapsed_time * 0.000001 as min_elapsed_timeINSeconds,
ps.max_elapsed_time * 0.000001 as max_elapsed_timeINSeconds
[code]...
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Aug 9, 2007
Hi all,
I have 2 select statements in my Stored Proc.
I want to display the results of each query in my DataGridView.
However, only the data of the last select query is returned.
Why is this?
Thanks.
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May 24, 2007
I have created a stored procedure with multiple select statements using MSSQL 2000. When I connect to this using a SQLDataSource it only seems to get the first SELECT. I need to access the multiple tables returned by the stoped procedure. Can anyone point me in the dirrection of how to do this.ThanksClearz
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Dec 3, 2006
Hey Guys. I’m having a little trouble and was wondering if you could help me out. I’m trying to create a custom paging control, so I create a stored procedure that returns the appropriate records as well as the total amount of records. And that works fine. What I’m having problems with is reading the data from the second select statement within the code. Anyone have any idea on how to do this? Also.. how can I check how many tables were returned?
Here's my code. I'm trying to keep it very generic so I can send it any sql statement:public DataTable connect(string sql)
{
DataTable dt = new DataTable();
SqlConnection SqlCon = new System.Data.SqlClient.SqlConnection(ConfigurationManager.ConnectionStrings["MyDB"].ToString());
SqlDataAdapter SqlCmd = new SqlDataAdapter(sql, SqlCon);
System.Data.DataSet ds = new System.Data.DataSet();
SqlCmd.Fill(ds);
dt = ds.Tables[0];
//Here's where I don't know how to access the second select statement
return dt;
} Here's my stored procedure:
ALTER PROCEDURE dbo.MyStoredProcedure
(
@Page int,
@AmountPerPage int,
@TotalRecords int output
)
AS
WITH MyTable AS
(
Select *, ROW_NUMBER() OVER(ORDER BY ID Desc) as RowNum
From Table
where Deleted <> 1
)
select * from MyTable
WHERE RowNum > (((@Page-1)*@AmountPerPage)) and RowNum < ((@Page*@AmountPerPage)+1);
Select @TotalRecords = COUNT(*)
from Table
where Deleted <> 1
RETURN
Thanks
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Mar 3, 2008
Hi all,
I have 2 sets of sql code in my SQL Server Management Stidio Express (SSMSE):
(1) /////--spTopSixAnalytes.sql--///
USE ssmsExpressDB
GO
CREATE Procedure [dbo].[spTopSixAnalytes]
AS
SET ROWCOUNT 6
SELECT Labtests.Result AS TopSixAnalytes, LabTests.Unit, LabTests.AnalyteName
FROM LabTests
ORDER BY LabTests.Result DESC
GO
(2) /////--spTopSixAnalytesEXEC.sql--//////////////
USE ssmsExpressDB
GO
EXEC spTopSixAnalytes
GO
I executed them and got the following results in SSMSE:
TopSixAnalytes Unit AnalyteName
1 222.10 ug/Kg Acetone
2 220.30 ug/Kg Acetone
3 211.90 ug/Kg Acetone
4 140.30 ug/L Acetone
5 120.70 ug/L Acetone
6 90.70 ug/L Acetone
/////////////////////////////////////////////////////////////////////////////////////////////
Now, I try to use this Stored Procedure in my ADO.NET-VB 2005 Express programming:
//////////////////--spTopSixAnalytes.vb--///////////
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim sqlConnection As SqlConnection = New SqlConnection("Data Source = .SQLEXPRESS; Integrated Security = SSPI; Initial Catalog = ssmsExpressDB;")
Dim sqlDataAdapter As SqlDataAdapter = New SqlDataAdaptor("[spTopSixAnalytes]", sqlConnection)
sqlDataAdapter.SelectCommand.Command.Type = CommandType.StoredProcedure
'Pass the name of the DataSet through the overloaded contructor
'of the DataSet class.
Dim dataSet As DataSet ("ssmsExpressDB")
sqlConnection.Open()
sqlDataAdapter.Fill(DataSet)
sqlConnection.Close()
End Sub
End Class
///////////////////////////////////////////////////////////////////////////////////////////
I executed the above code and I got the following 4 errors:
Error #1: Type 'SqlConnection' is not defined (in Form1.vb)
Error #2: Type 'SqlDataAdapter' is not defined (in Form1.vb)
Error #3: Array bounds cannot appear in type specifiers (in Form1.vb)
Error #4: 'DataSet' is not a type and cannot be used as an expression (in Form1)
Please help and advise.
Thanks in advance,
Scott Chang
More Information for you to know:
I have the "ssmsExpressDB" database in the Database Expolorer of VB 2005 Express. But I do not know how to get the SqlConnection and the SqlDataAdapter into the Form1. I do not know how to get the Fill Method implemented properly.
I try to learn "Working with SELECT Statement in a Stored Procedure" for printing the 6 rows that are selected - they are not parameterized.
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Apr 29, 2008
I believe we can you multiple statements in stored procedures?
Suppose I have a stored procedure and I pass parameters to this SP.
What I am aiming for is to pass some values to the stored procedure, use a select statement to retrieve some values, then have two update statements as below. Updating the same table but with opposite values, both passed as a parameter and retrived, as given below:
CREATE sp_temp_proc
@order_id int,
@order_position int,
@temp_order_id OUTPUT
@temp_order_position OUTPUT,
SELECT order_id AS temp_order_id
FROM <TABLE> WHERE order_position < @order_position
@temp_order_id = temp_order_id
UPDATE <TABLE> SET order_position = @order_position WHERE order_id =
@temp_order_id
UPDATE <TABLE> SET order_position = @temp_order_position WHERE order_id = @order_id
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Jul 23, 2005
Hi!I got 2 stored procedure, proc1 executes proc2,proc2 does some updates and inserts on different tables ...proc1:ALTER PROCEDUREASexecute proc2SELECT * FROM tblFoo______________________my problem is, that when executing proc1, I receive the message:"THE SP executed successfully, but did not return records!"But I need the resultset from "SELECT * FROM tblFoo" that is executedat the end of proc1.I'm not sure, but I think that I solved a similira problem with "setnocount on", I put it into both SP, but it's still the same ... noresultset ...How can I display "SELECT * FROM tblFoo" within a SP, where SQLstatements are executed before?!Thank you!
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May 19, 2008
Hi,
I have used several sql queris to generate a report. This queries pull out data from different tables. But sometimes at the same table too.
Basically those are SELECT statements.
I have created stored proc for each SELECT statement. now I'm wondering can I include all SELECT statements in one stored proc and run the report.
If possible, can anyone show me the format?
Thanks
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Jan 31, 2008
I have a SP that has the correct syntax. However when I run my web-app it gives me this error: "Only one expression can be specified in the select list when the subquery is not introduced with EXISTS. "
The procedure takes in three parameters and retrieves 23 values from the DB to display on my form.
Any ideas?
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Oct 23, 2007
Hi,
I'm trying to understand the cases where it's more interesting to use snapshot and when it's more interesting to use cached instances.
If I have 100 users trying to reach a report, is it better to use snaphsot or cache instance ? In both case, the 100 users will have the same report result. And what about the performance, are they similar ?
Thanks for your time and response,
See you,
Have a nice day!
regards,
sandy
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Jun 19, 2007
Hello,
I would like to know what is the difference between a snapshot and a cached instance in SSRS?
Which one has the best performances and which one is the best for multiple users and reports containing parameters (the parameters are then passed in the where clause of the sql code; ex: WHERE IN(@param1))?
Thanks for your answers.
Zoz
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Oct 30, 2015
When viewing an estimated query plan for a stored procedure with multiple query statements, two things stand out to me and I wanted to get confirmation if I'm correct.
1. Under <ParameterList><ColumnReference... does the xml attribute "ParameterCompiledValue" represent the value used when the query plan was generated?
<ParameterList>
<ColumnReference Column="@Measure" ParameterCompiledValue="'all'" />
</ParameterList>
</QueryPlan>
</StmtSimple>
2. Does each query statement that makes up the execution plan for the stored procedure have it's own execution plan? And meaning the stored procedure is made up of multiple query plans that could have been generated at a different time to another part of that stored procedure?
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Sep 16, 2015
Our developers have gotten this idea lately that instead of having many small stored procedures that do one thing and have small parameter lists that SQL can optimize query plans for, its better to put like 8-10 different queries in the same stored procedure.
They tend to look like this:
create procedure UberProc (@QueryId varchar(50))
as
if @QueryId = 'First Horrible Idea'
begin
select stuff from something
end
if @queryid = 'Second really bad idea'
begin
select otherstuff from somethingelse
end
I see the following problems with this practice:
1) SQL can't cache the query plan appropriately
2) They are harder to debug
3) They use these same sorts of things for not just gets, but also updates, with lots of optional NULLable parameters that are not properly handled to avoid parameter sniffing.
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Oct 22, 2015
I am using sql2012 with partitiondb custom installation over 6 dbs on 4 servers, ~200GB per db. I am looking for the perfect graphic tool (similar to Perfmon+Activity Monitor) where I can monitor a wide-scope SQL environment. I am interested in data / log / table / index growth, buffer cache hit ratio, average wait time, physical/logical reads/writes and such. I am interested in real-time / time-range metrics. I know I can issue immediate queries against dm_os_performance_counters / dm_os_buffer_descriptors / dm_exec_query_stats and get some of the relevant data, but is this the only way?Also, for your opinnion, what are the most crucial metrics to monitor when dealing with multiple dbs?
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Mar 4, 2015
We have 5 instances on our clients old machine with SQL 2005, now they want us to move on cluster environment with SQL 2012.
Once I have installed and configured SQL cluster with single instance, but how to install SQL Cluster environment for Multiple instances.
Should I install all the instances first and than have to configure cluster ?
OR
Is there any way that first I will install cluster and than we can add the instances ?
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Jul 14, 2015
What I have- Sql server 2012 (Standard Ed) Cluster on Windows 2012 R2 with both instances running on the same node- just to save on License, i.e. technically it’s Act/Pas cluster.
What I am looking for- how to configure cluster (e.g. via quorum, etc) to force both instances failed together? Means if for some reason 1-st instance will fail to node 2 another instance should follow (otherwise it will be Act/Act cluster and 2-nd license is required).
If there is no standard way (cluster configuration I mean) to do it I should create some custom process to monitor where each instance is running.
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Oct 14, 2015
Curious what the industry standard is combining multiple instances on single server ?
Right now i have separate servers for OLTP, SSAS, and SSIS, and for OTP have Development, Test, and production environments. Im considering combining the SSIS and SSAS services into additional instances on each environment servers.
Now (Production)
OLTP
SSAS
SSIS
After
1 Server with 3 separate instances for SSAS, SSIS, OLTP. Then replicate this model through the environments to utilize development and testing.
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Sep 25, 2015
I am trying to write a stored procedure that is an INSERT INTO <sql table> FROM <other sql tables> WHERE <where clause>.
I need to insert 3 columns from multiples SQL tables into one SQL table. Here is my code snippet:
ALTER PROCEDURE [dbo].[sp_insert_test]
@MID INT OUTPUT,
@CIDINT OUTPUT,
@MemberNVARCHAR OUTPUT
[Code] ....
i cannot pass any of the values to the tblVotings table and not sure how to enter the @MID, @CID and @Member to the INSERT INTO statement.
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Jun 18, 2014
I was told that if I wanted to setup mirroring between multiple instance on the same server that each endpoint had to be different number. Is that true? Or can I use the default 5022 for each instance?
Ex.
Server1Instance1
Use endpoint 5022
Server1Instance2
Use endpoint 5022
VS
Server1Instance1
Use endpoint 5022
Server1Instance2
Use endpoint 5023
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May 18, 2015
i want to run a transaction across mulitpule instences of sqlserver with out linked server.
distributed trnasaction can do it with link server , can it do it with out linked server.
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Jul 13, 2015
I am currently having publisher(database A), subscriber (database B) and distributor on the same instance for a test environment that is using a uni directional transactional replication. Now I need to setup another unidirectional transactional replication in the same test instance but for a different database. Publisher database is D and subcsirber database is E.
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Feb 17, 2014
I have a stored procedure that ends with
Select columnname from tablename order by ordercolumn
We will call that "sp_foldersOfFile". It takes 1 parameter, a fileID (int) value.
The result when I execute this from within Management Studio is a single column of 1 to n rows. I want to use these values in another stored procedure like this:
Select @userCount = COUNT(*) from permissions where UserID = @userID and
(projectid = @projectID or projectid=0) and
clientid = @clientID and
folderpermissions in (dbo.sp_FoldersOfFile(@fileID))
The Stored Procedure compiles but it does not query the folderpermissions in the selected values from the sp_FoldersOfFile procedure. I'm sure it is a syntax issue.
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Apr 23, 2008
how can take codes below and put them into one store procedure to supplie a gridview. also i will like to define the row name on the left like i did to the column on the top using the 'AS'
Code1....
SELECT
SUM(CASE WHEN Month = 'January' THEN 1 ELSE 0 END) AS January, SUM(CASE WHEN Month = 'February' THEN 1 ELSE 0 END) AS February,
SUM(CASE WHEN Month = 'March' THEN 1 ELSE 0 END) AS March, SUM(CASE WHEN Month = 'April' THEN 1 ELSE 0 END) AS April,
SUM(CASE WHEN Month = 'May' THEN 1 ELSE 0 END) AS May, SUM(CASE WHEN Month = 'June' THEN 1 ELSE 0 END) AS June,
SUM(CASE WHEN Month = 'July' THEN 1 ELSE 0 END) AS July, SUM(CASE WHEN Month = 'August' THEN 1 ELSE 0 END) AS August,
SUM(CASE WHEN Month = 'September' THEN 1 ELSE 0 END) AS September, SUM(CASE WHEN Month = 'October' THEN 1 ELSE 0 END) AS October,
SUM(CASE WHEN Month = 'November' THEN 1 ELSE 0 END) AS November, SUM(CASE WHEN Month = 'December' THEN 1 ELSE 0 END) AS December,
SUM(CASE WHEN site_descr = 'SITE1' THEN 1 ELSE 0 END) AS AllTotal
FROM dbo.V_results
WHERE (site_descr = 'SITE1')
Code2.....
SELECT
SUM(CASE WHEN Month = 'January' THEN 1 ELSE 0 END) AS January, SUM(CASE WHEN Month = 'February' THEN 1 ELSE 0 END) AS February,
SUM(CASE WHEN Month = 'March' THEN 1 ELSE 0 END) AS March, SUM(CASE WHEN Month = 'April' THEN 1 ELSE 0 END) AS April,
SUM(CASE WHEN Month = 'May' THEN 1 ELSE 0 END) AS May, SUM(CASE WHEN Month = 'June' THEN 1 ELSE 0 END) AS June,
SUM(CASE WHEN Month = 'July' THEN 1 ELSE 0 END) AS July, SUM(CASE WHEN Month = 'August' THEN 1 ELSE 0 END) AS August,
SUM(CASE WHEN Month = 'September' THEN 1 ELSE 0 END) AS September, SUM(CASE WHEN Month = 'October' THEN 1 ELSE 0 END) AS October,
SUM(CASE WHEN Month = 'November' THEN 1 ELSE 0 END) AS November, SUM(CASE WHEN Month = 'December' THEN 1 ELSE 0 END) AS December,
SUM(CASE WHEN site_descr = 'SITE2' THEN 1 ELSE 0 END) AS AllTotal
FROM dbo.V_results
WHERE (site_descr = 'SITE2')
thanks in advance
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Dec 22, 2005
Hi guys and gals,
I am trying to create a select statement that will return an INT that I will later have to use in another select statement. I have the following code, however, I keep getting an error that says:
'Error116: Only one expression can be specified in the select list when the subquery is not introduced with EXISTS.'
My Code is below:
//Start of sql
CREATE PROCEDURE ADMIN_GetSingleUsers( @userID int) AS
DECLARE @userSQL intSET @userSQL = (SELECT User_ID, TITLE.TITLE AS TITLE, Cast(Users.Active as varchar(50)) as Active, Cast(Users.Approved as varchar(50)) as Approved, Users.Unit_ID As usersUnitID, * From TITLE, Users WHERE User_ID = @userID AND TITLE.TITLE_ID = Users.Title_ID )
Select Unit_ID, Parent_ID, Unit_Name from UNITS WHERE Unit_ID = @userSQL
//End of sql
Can you point to what I am doing wrong? Thanks in advance!
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Sep 18, 2014
We are just finishing our migration to SQL 2012. In our old environment, the instance which held our SharePoint databases also served other applications. We did not experience any performance related issues in the past due to this.
SharePoint basically requires MAXDOP to be 1, which is correct on the old server. Since this configuration may not be ideal for other applications that may be put within our environment, we our entertaining the idea of isolating SharePoint into its own instance, probably on the same box.
My manager wants me to come up with performance trace data to better prove that we need to go this route since we apparently have had issues in the past by blindly following Microsoft's best practices.
1.MAXDOP configuration - I understand this may be a 2 pronged approach that would require looking at various execution plans and CPU related counters in Perfmon. SharePoint likely requires a maxdop of 1 due to the nature of the application (lots of concurrent processes). What is the best way to show this need graphically?
2. Memory configuration for multiple instances - Does the Total Server Memory reveal all the memory that a given SQL instance is utilizing? Should I use this counter to identify appropriate min/max memory configurations for multiple instances on a single cluster?
The problem with the perfmon approach is that it's scope is limited to just the server. Since our SharePoint environment is currently being shared with other applications, I understand that I may have to utilize DMV statistics to narrow down my analysis.
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Jan 7, 2014
I have a stored procedure that I have written that manipulates date fields in order to produce certain reports. I would like to add a column in the dataset that will be a join from another table (the table name is Periods).
The structure of the periods table is as follows:
[ID] [int] NOT NULL,
[Period] [int] NULL,
[Quarter] [int] NULL,
[Year] [int] NULL,
[PeriodStarts] [date] NULL,
[PeriodEnds] [date] NULL
The stored procedure is currently:
USE [International_Forecast_New]
GO
/****** Object: StoredProcedure [dbo].[GetOpenResult] Script Date: 01/07/2014 11:41:35 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
[Code] ....
What I need is to add the period, quarter and year to the dataset based on the "Store_Open" value.
For example Period 2 looks like this
Period Quarter Year Period Start Period End
2 1 20142014-01-27 2014-02-23
So if the store_open value is 02/05/2014, it would populate Period 2, Quarter 1, Year 2014.
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Oct 3, 2014
I have a store procedure in MC400 which I can call from SSMS using the below command:
EXEC ('CALL GETENROLLMENT() ')At serverName
Now this command returns two data sets like:
HA HB HC HD HE
1112
112571ABC14
113574ABC16
114577ABC87
DADBDCDD
1115566VG02
1115566VG02
1115566VG02
I want to generate two different XML files from these two datasets.Is there any way this can be achieved in SSIS or t-sql ?
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Jul 27, 2007
I was wondering if it's possible to have a stored procedure that has two select statements which you can combine as a single result set. For instance:select name, age, titlefrom tableaselect name, age, titlefrom tablebCould you combine these queries into a single result set?
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Dec 16, 2014
I know I should know the answer to this, but I just can't quite get the syntax down
Code:
Select case when zipCode = '10185' Then 'Deliver'
Else when zipCode = '2309' And paid = 'Yes' Then 'Deliver'
Else When zipCode = '1291' And paid = 'Yes' Then 'Deliver'
Else When zipCode = '88221' And paid = 'No' Then 'Hold'
Else when zipCode = '34123' Then 'Deliver'
End
From postalDeliveryDatabase
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Jul 9, 2015
we can assign one parameter value for each excecution of [SSISDB].[catalog].[set_object_parameter_value] by calling this catalog procedure..
Example: If I have 5 parameters in SSIS package ,to assign a value to those 5 parameters at run time should I call this [SSISDB].[catalog].[set_object_parameter_value] procedure 5 times ? or is there a way we can pass all the 5 parameters at 1 time .
1. Wondering if there is a way to pass multiple parameters in a single execution (for instance to pass XML string values ??)
2.What are the options to pass multiple parameter values to ssis package through stored procedure.?
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Sep 11, 2007
Hi,We are discussing possible implementation for sql2005 database(s). This database will serve one web portal. Part of data will get into it by hand, and part will be replicated from internal system.Some of us are for creating two separate databases, since there are two separate datasources. One, automatic, will change very little over time and requires almost no maintenance. Other datasource will be manual input. Tables and procedures related to this part will change over time.Some of us are for creating single database, since it will serve one web site. More important this group is concerned about performance issues since almost every select will require join between tables that would be stored in two separate databases. Do these issues exist? Can you share some insights, comments, links about this?
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Apr 29, 2008
Hi,
OK, trying to return the results from two SQL statements into a DataSet using SqlDataAdapter. The SELECT statements query the same table but are looking for different records based on the date that the records were inserted - the 1st query looks for records fro the current month and the 2nd one looks at the same records but for the previous month. The goal is to be able to do some math within a repeater and get the difference between the two records.
Sounds easy enough and it has worked for me in different variations of the same idea but not this time - here's the code:
Protected Sub buildPartsReport(ByVal varHC) objConn.Open() sSQL = "SELECT ap.id,item_model,item_sn,aircraft_id,item_loc=item_type+ ' on ' +(SELECT tnum FROM T_Aircraft WHERE id=aircraft_id),apt.tot_time As endTimes,apt.tot_cycles as endCycles FROM T_Aircraft_Parts ap, T_Aircraft_Parts_Totals apt WHERE ap.id=apt.part_id AND report_date= '" & rD & "' AND item_type LIKE 'engine%';SELECT ap.id,apt.part_id,apt.tot_time as startTimes,apt.tot_cycles as startCycles FROM T_Aircraft_Parts ap, T_Aircraft_Parts_Totals apt WHERE ap.id=apt.part_id AND report_date= '" & oldRD & "' AND item_type LIKE 'engine%'" Dim objCommand As New SqlDataAdapter(sSQL, objConn) DS = New DataSet() objCommand.Fill(DS) Repeater1.DataSource = DS Repeater1.DataBind() DS.Dispose() objCommand.Dispose() objConn.Close() End Sub
Sorry if it wrapped a bit. The "rD" and "oldRD" are the variables for the date ranges (currently set to static numbers for testing). I'm getting the following error when I run this on an ASP.Net page:
System.Web.HttpException: DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'startTimes'.
The code works fine when run via the Query Tool on the SQL server (SQL 2005 Std) though it produces two distinct "tables" which I'm guessing is the problem. I've tried variations on the code including creating a 2nd dataset and then attempting a merge (no joy) and I've tried the ".TableName" route but it complains about trying to add the tablename twice.
Thoughts? I need to get this to work - it is part of a reporting component for an application that I'm developing and I'm stuck. Thanks as always...
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Jan 20, 2005
I'm new to SQL stored procedures, but I'm looking to be able to select order by statement.
declare @OrderBy
@OrderBy = 'first_name'
Select first_name,last_name from table1
Union
Select first_name,last_name from table2
if @OrderBy = 'first_name' begin
Order By first_name
else
Order By last_name
end
You'll have to excuse my if statement if the syntax is incorrect (used to only writing asp ifs :P). Thanks for any help
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