Index For Access Query Work ?
Feb 27, 2007
Not sure which forum too put this question
I have recently upgraded my Access Database too use SQL server 2005 using the upsizing wizard. I have selected too use SQL Linked tables instead off the ADP project for ease off conversion. So now the tables are on the SQL server and the queries are still local.
On off my Access forms which returns a datasheet view by accessing the a query is now running really slowly now SQL server is the backend, I was wondering if I can put an index on one of the tables too speed it up, as the query is local too Access will this work? Just wondering if anyone ever come across this.
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Apr 18, 2007
Hi,
I have an application that uses following code:
Code Snippet
using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.OleDb;
using System.Collections;
namespace TimeTracking.DB
{
public class sql
{
OleDbConnection conn;
//
//the constructor for this class, set the connectionstring
//
public sql()
{
DBConnectionstring ConnectToDB = new DBConnectionstring();
conn = ConnectToDB.MyConnection();
}
//
//
//
public void UpdateEntry(int ID, string Week, string Year, string Date, string Project, string Action, string Time, string Comment)
{
int m_ID = ID;
int m_Week = (Convert.ToInt32(Week));
int m_Year = (Convert.ToInt32(Year));
string m_Date = Date;
string m_Project = Project;
int m_ProjectID = new int();
string m_Action = Action;
int m_ActionID = new int();
Single m_Time = (Convert.ToSingle(Time));
string m_Comment = Comment;
//
//get the project ID from the database and store it in m_ProjectID
//
OleDbCommand SelectProjectID = new OleDbCommand("SELECT tblProject.ProjectID FROM tblProject"
+ " WHERE (((tblProject.Project) LIKE @Project))", conn);
SelectProjectID.Parameters.AddWithValue("@Project", m_Project);
try
{
//open the connection
conn.Open();
OleDbDataReader Dataset = SelectProjectID.ExecuteReader();
while (Dataset.Read())
{
m_ProjectID = (int)Dataset["ProjectID"];
}
Dataset.Close();
}
//Some usual exception handling
catch (OleDbException e)
{
throw (e);
}
//
//get the action ID from the database and store it in m_ActionID
//
OleDbCommand SelectActionID = new OleDbCommand("SELECT tblAction.ActionID FROM tblAction"
+ " WHERE (((tblAction.Action) LIKE @Action))", conn);
SelectActionID.Parameters.AddWithValue("@Action", m_Action);
try
{
OleDbDataReader Dataset = SelectActionID.ExecuteReader();
while (Dataset.Read())
{
m_ActionID = (int)Dataset["ActionID"];
}
Dataset.Close();
}
//Some usual exception handling
catch (OleDbException e)
{
throw (e);
}
//
//
//
OleDbCommand Query = new OleDbCommand("UPDATE [tblEntry] SET [tblEntry].[Weeknumber] = @Week,"
+ " [tblEntry].[Year] = @Year, [tblEntry].[Date] = @Date, [tblEntry].[Project] = @ProjectID, [tblEntry].[Action] = @ActionID,"
+ " [tblEntry].[Hours Spent] = @Time, [tblEntry].[Comments] = @Comment WHERE (([tblEntry].[ID]) = @ID)", conn);
Query.Parameters.AddWithValue("@ID", m_ID);
Query.Parameters.AddWithValue("@Week", m_Week);
Query.Parameters.AddWithValue("@Year", m_Year);
Query.Parameters.AddWithValue("@Date", m_Date);
Query.Parameters.AddWithValue("@ProjectID", m_ProjectID);
Query.Parameters.AddWithValue("@ActionID", m_ActionID);
Query.Parameters.AddWithValue("@Time", m_Time);
Query.Parameters.AddWithValue("@Comment", m_Comment);
try
{
Query.ExecuteNonQuery();
}
//Some usual exception handling
catch (OleDbException e)
{
throw (e);
}
finally
{
//close the connection
if (conn != null)
{
conn.Close();
}
}
}
}
}
Code Snippet
The update statement is not working in my application, no error in C# and no error in ms-access. When I paste the update query into the ms-access query tool and replace the parameter values (@....) with real values, is will update the record.
What am I overseeing here?
--Pascal
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Dec 24, 2007
A common search technique for us is to pass a bunch of parameters to a query, but to leave most of the parameters empty. We only get records that match all parameters. So I can search for orders in CO with an email that includes yahoo.com. In some cases we search multiple fields for the same data and return the matching data. For example, there are 2 fields that could match @SchoolName. If either 1 matches that's okay.
How do I index this for the fastest results? (I'm new to SQL Server indexing). Do I want 1 index that includes all possible fields? Or individual indexes on each field? Or something else?
Here's a sample SPROC with a couple of parameters implemented in the WHERE clause:
Code Block
ALTER PROCEDURE [dbo].[Plan_Search]
(
@Ordernum VARCHAR(15),
@SchoolName VARCHAR(40),
@Zipcode VARCHAR(15),
@City VARCHAR(40),
@State VARCHAR(5),
@Contact VARCHAR(40),
@Ponumber VARCHAR(20),
@Quoteid VARCHAR(15),
@Phone VARCHAR(15),
@Email VARCHAR(75)
)
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON ;
SELECT Ordernum,
( CASE WHEN Corrname LIKE '%' + @SchoolName + '%'
THEN Corrname
ELSE bilname
END ) AS School,
Corrcity AS City,
Corrstate AS State,
Corrzip AS Zipcode,
Daterecved,
Dateshiped,
Level,
Package,
Totplnrord,
Purchordno,
Checkindate
FROM PlannerOrders
WHERE ordernum LIKE '%' + @Ordernum + '%'
AND ( corrname LIKE '%' + @SchoolName + '%'
OR [bilschool] LIKE '%' + @SchoolName + '%'
)
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Aug 16, 1999
I've tried many times to get the index tuning wizard to work...It never seems to find any 'parseable queries' in my workload file. I believe that I'm running the profiler correctly.
When I submit a simple sql file as a workload file, I get a 'server error creating table or index analysis...' back.
Any suggestions or hints?
Thanks,
Steve
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Dec 28, 2005
Hi all,
I'm getting this "invalid descriptor index" exception while trying to fetch a record from the table.
The query is "select * from <tablename> where <columnname> = 'xyz'". The column name is correct and indeed a record with 'xyz' value exists. The record is getting fetched too...! But I'm having this particular error while trying to retrieve a couple of fields with rs.getString().
The order of columns in the table is same as the order in which I'm retrieving them. And I'm not facing any problem retrieving another field which has width of 200 characters.
I'll be very grateful indeed if someone can help me out of this particular problem...
Cheers, mates!
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Apr 4, 2015
Consider following code:
SELECT e1.EntityIdentity as CompanyID
FROM dbo.Entitye1 --company
JOIN dbo.EntityAssociationea
ON e1.EntityID = ea.EntityID1
JOIN dbo.Entitye2 --user
ON ea.EntityID2 = e2.EntityID
This query occurs as a sub-query in many stored procedures where exists a WHERE clause that includes CompanyID IN (above query).
Since dbo.Entity and dbo.EntityAssociation change infrequently I thought that an indexed view would really improve performance. But I've found one of the seemingly undocumented Microsoft features when trying to create the clustered index and get the following error msg:
Msg 1947, Level 16, State 1, Line 1
Cannot create index on view "ROICore.dbo.vEntityEntityAssociation_CompanyUser". The view contains a self join on "ROICore.dbo.Entity".
I really need to improve performance on this subquery. Entity currently has over 20m rows and EntityAssociation over 35m rows and both are growing.
How to improve performance? Indexes on both tables for the most part give index seeks, but I thought my saviour might be the index view. Obviously this will not work.
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Apr 18, 2001
If I'm using an Access front-end, and the data is on SQL Server being accesses via a linked table, and I create a query in Access, Where is all the work done?
I know access has the option of using a pass-through method, but if I do not use it, is Access processing the query locally? I plan on migrating several tables to SQL because the sizes are getting to large for Access and want to know if their will be a performance increase with out re-writing the queries in Access.
Thanks in advance,
Adam
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Nov 14, 2006
the query:
SELECT a.AssetGuid, a.Name, a.LocationGuid
FROM Asset a WHERE a.AssociationGuid IN (
SELECT ada.DataAssociationGuid FROM AssociationDataAssociation ada
WHERE ada.AssociationGuid = '568B40AD-5133-4237-9F3C-F8EA9D472662')
takes 30-60 seconds to run on my machine, due to a clustered index scan on our an index on asset [about half a million rows]. For this particular association less than 50 rows are returned.
expanding the inner select into a list of guids the query runs instantly:
SELECT a.AssetGuid, a.Name, a.LocationGuid
FROM Asset a WHERE a.AssociationGuid IN (
'0F9C1654-9FAC-45FC-9997-5EBDAD21A4B4',
'52C616C0-C4C5-45F4-B691-7FA83462CA34',
'C95A6669-D6D1-460A-BC2F-C0F6756A234D')
It runs instantly because of doing a clustered index seek [on the same index as the previous query] instead of a scan. The index in question IX_Asset_AssociationGuid is a nonclustered index on Asset.AssociationGuid.
The tables involved:
Asset, represents an asset. Primary key is AssetGuid, there is an index/FK on Asset.AssociationGuid. The asset table has 28 columns or so...
Association, kind of like a place, associations exist in a tree where one association can contain any number of child associations. Each association has a ParentAssociationGuid pointing to its parent. Only leaf associations contain assets.
AssociationDataAssociation, a table consisting of two columns, AssociationGuid, DataAssociationGuid. This is a table used to quickly find leaf associations [DataAssociationGuid] beneath a particular association [AssociationGuid]. In the above case the inner select () returns 3 rows.
I'd include .sqlplan files or screenshots, but I don't see a way to attach them.
I understand I can specify to use the index manually [and this also runs instantly], but for such a simple query it is peculiar it is necesscary. This is the query with the index specified manually:
SELECT a.AssetGuid, a.Name, a.LocationGuid
FROM Asset a WITH (INDEX (IX_Asset_AssociationGuid)) WHERE
a.AssociationGuid IN (
SELECT ada.DataAssociationGuid FROM AssociationDataAssociation ada
WHERE ada.AssociationGuid = '568B40AD-5133-4237-9F3C-F8EA9D472662')
To repeat/clarify my question, why might this not be doing a clustered index seek with the first query?
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Apr 25, 2008
Hi All,
Just installed a new version of SQL2005 on a brand new Application Server.
However, when i fired up Access 2003, it gives me some chaos about how Access isn't compatible with SQL2005. Fantastic lack of backward compatibility straight out the box.
Ok, so I do as it says and download all the updates.
Try again... Still won't allow me.
Wen't to Control Panel > Data Sources and confirmed the Native Client is in there. Added a System DSN for the new Server.
Tried Access again, still not working?? What the...
Why can't I create a new project in Access 2003, and edit it from my desktop instead of sitting on the server for every table modification? I hate designing tables on the SQL studio.
Any clues or help would be great. I'm just disappointed at the moment, on how this is holding up my database projects.
Thanks,
Chris.
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Apr 30, 2007
Hello everybody,
I'm developing a report using the following structure :
declare @sql as nvarchar(4000)
declare @where as nvarchar(2000)
set @sql = 'select ....'
If <conditional1>
begin
set @where = 'some where'
end
If <conditional2>
begin
set @where = 'some where'
end
set @sql = @sql + @where
exec(@sql)
I run it in query analyser and works fine, but when I try to run in Reporting Services, Visual studio stops responding and the cpu reaches 100 %.
I realize that when I cut off the if clauses, then it works at Reporting services.
Does anybody know what is happening?
Why the query works in query analyser and doesn't work in Reporting Service ?
Thanks,
Maurício
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Oct 25, 2007
i have enable cross database chain,but it return error message:
The server principal "S-1-9-3-1149532189-1170944071-2610337685-3868961652." is not able to access the database "db2" under the current security context.
I list the sql script as follows:
Code Block
use master;
go
create database db1;
create database db2;
go
use db2
go
create table table1
(
col int
)
go
use db1
go
create user u1 without login
go
create proc p1
as
insert into db2.dbo.table1 values(1)
go
grant execute on p1 to u1
execute as user='u1'
exec p1
thanks
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Oct 26, 2000
Hi, Folks!
I'm receiving Access Violation Error when I'm trying to create a clustered index on a datetime field on a table that have around 4 million records, if I create the index nonclustered, no problem, but clustered the system raise this error!
Any help will be appreciate a lot!
Thanks in advance!
Armando Marrero
Cti. Miami
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Oct 20, 2006
please explain the differences btween this logical & phisicall operations that we can see therir graphical icons in execution plan tab in Management Studio
thank you in advance
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Feb 11, 2008
Hi all,
In my SQL Server Management Studio Express (SSMSE), pubs Database has a Stored Procedure "byroyalty":
ALTER PROCEDURE byroyalty @percentage int
AS
select au_id from titleauthor
where titleauthor.royaltyper = @percentage
And Table "titleauthor" is:
au_id title_id au_ord royaltyper
172-32-1176
PS3333
1
100
213-46-8915
BU1032
2
40
213-46-8915
BU2075
1
100
238-95-7766
PC1035
1
100
267-41-2394
BU1111
2
40
267-41-2394
TC7777
2
30
274-80-9391
BU7832
1
100
409-56-7008
BU1032
1
60
427-17-2319
PC8888
1
50
472-27-2349
TC7777
3
30
486-29-1786
PC9999
1
100
486-29-1786
PS7777
1
100
648-92-1872
TC4203
1
100
672-71-3249
TC7777
1
40
712-45-1867
MC2222
1
100
722-51-5454
MC3021
1
75
724-80-9391
BU1111
1
60
724-80-9391
PS1372
2
25
756-30-7391
PS1372
1
75
807-91-6654
TC3218
1
100
846-92-7186
PC8888
2
50
899-46-2035
MC3021
2
25
899-46-2035
PS2091
2
50
998-72-3567
PS2091
1
50
998-72-3567
PS2106
1
100
NULL
NULL
NULL
NULL
////////////////////////////////////////////////////////////////////////////////////////////
I try to do an ADO.NET 2.0-VB 2005 programming in my VB 2005 Express to get @percentage printed out in the VB Form1. I read some articles in the websites and MSDN about this task and I am very confused about "How to Work with Output Parameters & Report their Values in VB Forms": (1) Do I need the Form.vb [Design] and specify its properties of the object and classes I want to printout? (2) After the SqlConnectionString and the connection.Open(), how can I bring the value of @percentage to the Form.vb? (3) The following is my imcomplete, crude draft code:
Imports System.Data
Imports System.Data.SqlClient
Imports System.Data.SqlTypes
Public Class Form1
Dim connectionString As String = "Data Source=.SQLEXPRESS;Initial Catalog=pubs;Integrated Security=SSPI;"
Dim connection As SqlConnection = New
SqlConnection(connectionString)
Try
connection.Open()
Dim command As SqlCommand = New SqlCommand("byroyalty", connection)
command.CommandType = CommandType.StoredProcedure
...................................................................
..................................................................
etc.
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
From the above-mentioned (1), (2) and (3), you can see how much I am lost/confused in attempting to do this task. Please help and give me some guidances and good key instructions for getting the output parameter printed out in the FORM.vb in my VB 2005 Express project.
Thanks in advance,
Scott Chang
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Jun 3, 2006
Here is an extract from the Acc2Sql2.doc >>
By default, the Upsizing Wizard
transfers all indexes as nonclustered indexes. You can modify the Upsizing
Wizard to transfer the primary key index to a clustered index. To make this
change, start Microsoft Access and open the upsizing wizard library database.
For Microsoft Access 95, the filename is Wzcs.mda. For Microsoft Access 97, the
filename is Wzcs97.mda. When the database is open, click the Modules tab and open the
UT_ModUserConstants module. Search down to the UT_CLUSTERED constant. Change
the default value from False to True.
<<< end quote
Question: I am using ACCESS 2002 upsize wizard, I searched my computer for *.mda and could not find any wzcs*.mda. How do I set it so that it creates clustered-index instead of non-clustered-index?
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May 9, 2006
MS SQL Server 2000 SP3
I'm not the most knowledgable DBA, I've had to learn almost completely on my own, AND on a production server, because it's the only MS SQL Server I have access to.
Everything was fine before I took down the production server for maintenance. Someone suggested that I re-index my tables because I was having some performance issues with a particularly large table (it didn't help that table btw), so I did re-index.
Now, Everything works wonderfully, except for the performance issue mentioned AND one other thing that is going horribly wrong.
Here is the table:
create table ABMcontactlink
(
classifier varchar(20) not null, /* Classification of contact. */
transmitter varchar(36) not null,
contact integer not null, /* Link to ABMcontact (detail) table */
primary key (classifier,transmitter,contact),
foreign key (contact) references ABMcontacts(identifier),
group_name varchar(20) null,
priority smallint null, /* Authorization level. */
type smallint null, /* Autoalarm or Manual */
last_modification_date datetime, /* Date/time record last touched */
last_modification_id varchar(40) /* Who last touched record */
)
go
create index IndexABMcontactlink on
ABMcontactlink(classifier,transmitter)
go
create index CandidateABMcontactlink on
ABMcontactlink(transmitter)
go
As you can see, I have the primary key, which creates a clustered index, PK_ABMContactlink_Some Number, and two other indexes.
Now, this is a very busy production database, and most quick short queries benefit more from CandidateABMContactlink than from the other two indexes.
Unfortunately, in this production system, and this table, seconds count ALOT, so when I have roughly 3000-4000 quereies an hour pulling information from this table, I personally beleive I need to keep CandidateABMContactlink, and I'm not willing to find out on a production server.
** Now to the Problem at Hand **
I have one query that kicks off about 7 times a day, used to take less than 1 minute before the re-index. NOW it takes 30 Minutes. And it drags the system to a crawl.
I did some looking into it, and this query is using CandidateABMContactlink, and it takes 30 minutes. If it uses PK_Abmcontactlink it finishes in under 45 seconds.
Most queries are simple, "Select Column_names from abmcontacts where identifier in (select contact from abmcontactlink where transmitter = 'XXXXXX')"
This one is:
select * from ABMcontacts where (
(last_modification_date >= '2006-04-28 04:40:03' and last_modification_date <= '2006-05-09 16:41:14')
and EXISTS(select contact from ABMcontactlink where contact = identifier
and EXISTS(select transmitter_id from ABMtransmitter where transmitter_id = transmitter and (dealer = 'XXXX'))))
or
(EXISTS(select contact from ABMcontactlink where
(last_modification_date >= '2006-04-28 04:40:03' and last_modification_date <= '2006-05-09 16:41:14')
and contact = identifier and EXISTS(select transmitter_id from ABMtransmitter where transmitter_id = transmitter and (dealer = 'XXXX'))))
I can't change the query, so how do I make it use the Index I want it to use without removing the index that it is using? (I know there are much better ways to write the above query, I'm not the culprit, if I could re-write it, I would)
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Aug 3, 2004
What I want to do is update 1 table based on data in another. This query works great in Access XP, but I cannot make it work in SQL 2000 sp3. Is there a different way to populate table A with direct data from table B in an update?
Any help is appreciated
UPDATE [Clients - Complete], AssociateDirectory
SET [Clients - Complete].Phone = AssociateDirectory.WorkPhoneNumber
WHERE [Clients - Complete].Name=AssociateDirectory.LastName And [Clients - Complete].FNAME=AssociateDirectory.FirstName;
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Jan 28, 2008
hello everybody!
I'm using ssce.
I'm trying to add the followed query in my table adapter but in the query builder (VS), when I choose execute query, I get a couple of textboxes but whatever I type in, I get an error message "The parameter is wrong"
here is the query:
SELECT EntryID, UserInfo, Kind, ActionDate, Span, SalaryAtAction
FROM Logbook
WHERE
((CASE
WHEN @Enter = 0 AND @Exit = 0 THEN 0
WHEN @Enter = 1 AND @Exit = 0 AND kind = '?????' THEN 1
WHEN @Enter = 0 AND @Exit = 1 AND kind = '?????' THEN 1
WHEN @Enter = 1 AND @exit = 1 AND kind IN ('?????', '?????') THEN 1 ELSE 0 END) = 1)
what I try to implement is, a table that one of it's columns is bit datatype. the end-user can filter out the table by these parameters whether to show only the true rows or only the false rows or both.
would you suggest to use a different various of the query?
(a help button is provided on the error message, it refers to ]ms-help://MS.VSCC.v90/MS.MSDNQTR.v90.en/dv_vdt03/html/f0bf6b59-c245-4340-a869-5d7278fe0ae5.htm in case it helps anybody).
Shimi
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Nov 29, 2006
Is there a way to specify a MS Access table (or query object) in the select query of SQL Server.
Ex.:
MSAccessTable (in file.mdb)
col1
col2
a1
a2
b1
b2
SQL query in SQL Server:
SELECT col1, col2 into SqlTable from [file.mdb].MSAccessTable;
Thanks,
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Jul 24, 2006
Hi,
I have a query thatI need to make into one query for the sake of an application reading only one cursor.
Here's the syntax:
select (select distinct(x.amount) from escrow k inner join e120 x on k.escrow = x.escrowinner join a10 g on x.escrow = g.escrow where k.ftype = 'S' group by x.amount, g.officer) As New,a.officer as Officer, count(distinct(j.fstatus))as Escrow_Type, count(distinct(j.amount))as Amount, count(distinct(d.open_date))as [Open], count(distinct(d.close_date)) as Closed, count(distinct(can_date))as Cancelled
from a10 a inner join escrow d on a.escrow = d.escrowinner join e120 j on j.escrow = d.escrow where j.id_scr = 'e21' and j.fstatus = 'PAID' group by a.officer
The error message i'm recieving is the following:
Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.
Any ideas? any suggestions would be great.
Thanks
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Apr 18, 2004
My SQL Query Analyzer just runs the clock but when the clock stops it fails to open the tool. Both my SQL Server 2000 Developer and Enterprise Edition do this. Can anyone suggest how I can get this working? It worked fine in SQL 7.
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Dec 6, 2007
select distinct
a.Patients,
b.Patients,
a.pct,
b.pct
from
(
select count(*) as Patients, [pct of res] as pct
from testing
where [18 week wait] <= 18
group by [pct of res]
) as a right outer join
(select distinct[pct of res] from testing) as c on a.pct=c.[pct of res]and a.pct <> 'null' --is not null
(select count(*) as Patients, [pct of res] as pct
from testing
where [18 week wait] >18
group by [pct of res]
) as a left outer join as b on c.[pct of res]=b.pct
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Jul 23, 2005
I'm wondering how/why this query works. Trying to get my head wrappedaround SQL. Basically the Query deletes from the Import table allrecords that are already in FooStrings so that when I do an insert fromthe FooStringsImport table into the FooStrings table, then I won't getprimary key violations.DELETE FROM FooStringsImportWHERE EXISTS(SELECT * FROM FooStringsWHERE FooStringsImport.FooKey = FooStrings.FooKey)It seems to work fine, but I'm wondering about how the EXISTS keywordworks.(SELECT * FROM FooStringsWHERE FooStringsImport.FooKey = FooStrings.FooKey)This part is going to return only records from FooStrings correct? Ordoes it do a cartesian product since I've specified more than one tablein the WHERE statement?I wonder if it only returns records in FooStrings, then I don't see howa record from FooStringsImport would "EXISTS" in the records returnedfrom FooStrings.The reason I wondered about the cartesian product is because, if onlyFooStrings is specified in the FROM part of the SELECT statement, thenI was thinking it is only going to return FooString records. Theserecords would then be returned by the select statement to the WHEREEXISTS, which would look for FooStringImport records, but would findnone because the select statement only returned FooString records.I'm guessing maybe because it has to do a cartesian product to evaluatethe WHERE Pkey's equal, then the "SELECT *" just goes ahead and getsALL the fields, and not just those in FooStrings.FooStrings and FooStringsImport are identically structured tables,where the FooKey is set as the primary key in each table:CREATE TABLE [dbo].[FooStrings] ([FooKey] [bigint] NOT NULL ,[Name] [char] (40) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,[StartDate] [datetime] NULL ,[EndDate] [datetime] NULL ,[Code] [char] (1) COLLATE SQL_Latin1_General_CP1_CI_AS NULL) ON [PRIMARY]GOThanks in advance. I'm so appreciative of the help I've gotten here,as I've been able to write several very useful queries on my own nowafter everyones help and plus lots of reading on my own.
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Jul 20, 2005
I am having alot of trouble with a union query Im trying to create.The bizarre thing is I initially created this query and managed tosave it as a viewSELECT ID, DepartureDate, City, Country, Region,fkDepartureAirport, CONVERT(MONEY, Price) AS Price, '1' AS TypeFROM dbo.vHolidayUNION ALLSELECT ID, ValidTo, DestCity, Country, Region, fkDepartureAirport,Price, '2' AS TypeFROM dbo.vFlightHowever when I tried to update the view to this:SELECT ID, DepartureDate, fkCity, City, fkCountry, Country,Region, fkDepartureAirport, CONVERT(MONEY, Price) AS Price, '1' ASTypeFROM dbo.vHolidayUNION ALLSELECT ID, ValidTo, fkCity, DestCity, fkCountry, Country, Region,fkDepartureAirport, Price, '2'FROM dbo.vFlightit comes up with the error: view definition includes no output columnsor includes no items in the from clause.Any ideas??????All suggestions appreciatedAlly
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Apr 2, 2008
Hi all,
I have a table with 2 columns (simplified for this question):
Date and Action
Date is normal datetime, Action is varchar and can be either Sent or Received. The data can look like this:
1. '2008-04-02 15:09:09.847', Sent
2. '2008-04-02 15:09:10.125', Sent
3. '2008-04-02 15:09:11.125', Received
4. '2008-04-02 15:09:12.459', Received
5. '2008-04-02 15:09:15.459', Received
6. '2008-04-02 15:09:24.121', Sent
7. '2008-04-02 15:09:28.127', Received
I want to find a pair of rows Sent-Received with the Max Date difference, where Received follows immediately after Sent.
It means in our example, valid are only lines
2. and 3. or
6. and 7.
In this example, rows 6. and 7. have bigger difference of Dates, so the result of the query should be
6. '2008-04-02 15:09:24.121', Sent, 7. '2008-04-02 15:09:28.127', Received
It is probably easy, I just cannot work it out. Suprisingly finding MIN was quite easy. Thanx for any tips!
Regards,
alvar
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Nov 23, 2007
Edit: Newer mind. I tested this query more after writing this, and now it seems to work!I hope it continues to work. In following query, else is never executed.CREATE PROCEDURE Put_into_basket( @Product_code varchar(20))ASBEGIN SET NOCOUNT ON;IF NOT EXISTS(SELECT * FROM dbo.t_shopping_basket WHERE Product_code=@Product_code) BEGIN INSERT dbo.t_shopping_basket (Product_code, Name,Price) SELECT Product_code, Name,Price FROM dbo.t_product WHERE Product_code= @Product_code ENDELSE --this part is never executed BEGIN UPDATE dbo.t_shopping_basket SET Quantity=Quantity+1 WHERE Product_code=@Product_code ENDENDGO The query should test if there is a record or row with Product_code=@Product_code. If there is not, that is the first part, one such row is inserted. Quantity has a default value of 1. Insertion works, one row is inserted. At least sort of. If there is already record, That's later part, Quantity is increased by 1. That too works, if ran separately.But when I test query, it never runs the quantity+1 part.
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Oct 15, 2014
I am currently stuck on how to make this 2 separate query work together, both work as i want them to individually, please note the syntax is according to a application i use that uses mysql to manipulate columns in an imported csv file.
CONCAT('at-',
REPLACE([CSV_COL(18)],'http://www.homebuy.co.uk/product.php/','')
)
removes last character i.e. /
SUBSTRING([CSV_COL(18)], 1, CHAR_LENGTH([CSV_COL(18)]) - 1)
basically i need these 2 to work together to give me an output like this
at-09fd8903
from the this. URL...url above minus the "" as i said both work on there own, but not together.
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Apr 23, 2008
I have my db in a pocket pc wm5.0, I just want to make a simple query
select * from table
where pk = '1'
but this doesnt work, if you tried any other field else than the primary key
it works... WHY???
would it be a problem with the sdf file? help please!!!
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Nov 8, 2007
Hi all,
I have a script to bulk copy data from my table into textfile. This bcp script will be executed by xp_cmdshell. When I try to execute the scipt inside query windows it returned an error : Error = [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified. But when I test the bcp script in command prompt it will execute successfully
Is there any misconfiguration ? (I'm using sqlexpress) thanks in advance.
Best regards,
Hery
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Nov 7, 2006
Hello All,
I am trying to run the below query in SSIS, However it does not work, but when I try to run the same query in Oracle client it works fine. Here is the following query:
select 'AAA-'||OWNER AS SOURCE,
table_name,
column_name,
SUBSTR(data_type,1,50) DATA_TYPE ,
SUBSTR(decode(data_type,'NUMBER', DATA_PRECISION, DATA_LENGTH),1,20) DATA_LENGTH
from all_tab_cols
where owner='XXX'
ORDER BY TABLE_NAME, COLUMN_ID
Here ARE the following errorS I get when running from SSIS:
[ORA_AAA_XXX [147]] Error: There was an error with output column "SOURCE" (612) on output "OLE DB Source Output" (157). The column status returned was: "The value could not be converted because of a potential loss of data.".
[ORA_AAA_XXX [147]] Error: The "output column "SOURCE" (612)" failed because error code 0xC0209072 occurred, and the error row disposition on "output column "SOURCE" (612)" specifies failure on error. An error occurred on the specified object of the specified component.
Any help?
Regards,
Raju
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Apr 19, 2007
Hi!
Do you know why this query is ok on SQL 2005 and not on SQL ce ??
Code Snippet
DELETE ProfilesGroups
FROM ProfilesGroups pg
INNER JOIN Groups g
ON tpGroupID = g.gId
WHERE pg.tpProfileID = '7df60fae-a026-4a0b-878a-0dd7e5308b09'
AND g.gProfileID = '8a6859ce-9f99-4aaf-9ed6-1af66cd15894'
Thx for help ;-).
PlaTyPuS
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Mar 17, 2007
My Table Structure
Category_ID Number
Parent_ID Number <----Category_ID reports to this colum
Category_Name Varchar....
MY QUERY <---I replaced the query above with my data
=============================
WITH Hierarchy(Category_ID, Category_Name, Parent_ID, HLevel)
AS
(
SELECT Category_ID, Category_Name, Parent_ID, 0 as HLevel FROM Dir_Categories
UNION ALL
SELECT SubCategory.Category_ID
, SubCategory.Category_Name,
SubCategory.Parent_ID,
HLevel + 1
FROM Dir_Categories SubCategory
INNER JOIN Hierarchy ParentCategory
ON SubCategory.Parent_ID = ParentCategory.Category_ID )
SELECT Category_ID,
Category_Name = Replicate('__', HLevel) + Category_Name,
Parent_ID,
HLevel
FROM Hierarchy
My OUTPUT============
All the categories under reporting to Parent_ID 0 or continuous, then the ones reporting to 1 and so fourth. Subcategories are not showing within their main categories. I AM GOING NUTS WITH THIS.
Can you help me please?
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Jan 28, 2008
As in title. Is there any tool? I'm asking beceuse, I have some big bases, and processing may take a lot of time (at least few hours), and I'll be glad if it's possibility to know estimate time before query runs. I'm using MsSql 2005 Developer edition.
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