Hi.
Like in subject. I know the varray and nested tables from oracle, and I'm trying to implement them in sql server. I've been googling for any information but with no result. Can somebody direct me ??
Sorry for any english mistakes
Thanks for help
Hi,
This is on Sybase but I'm guessing that the same situation would happen on SQL Server. (Please confirm if you know).
I'm looking at these new databases and I'm seeing code similar to this all over the place:
if not exists (select 1 from dbo.t1 where f1 = @p1)
begin
select @errno = @errno | 1
end
There's a unique clustered in dex on t1.f1.
The execution plan shows this for this statement:
FROM TABLE
dbo.t1
EXISTS TABLE : nested iteration.
Table Scan.
Forward scan.
Positioning at start of table.
It's not using my index!!!!!
It seems to be the case with EXISTS statements. Can anybody confirm?
I also hinted to use the index but it still didn't use it.
If the existence check really doesn't use the index, what's a good code alternative to this check?
I did this and it's working great but I wonder if there's a better alternative. I don't really like doing the SET ROWCOUNT 1 and then SET ROWCOUNT 0 thing. SELECT TOP 1 won't work on Sybase, :-(.
SET ROWCOUNT 1
SELECT @cnt = (SELECT 1 FROM dbo.t1 (index ix01)
WHERE f1 = @p1
)
SET ROWCOUNT 0
Appreciate your help.
I am trying to write a query that does not use inner joins to see if it returns rows faster than a query using inner joins.
My trouble is that I don't know how to write the syntax for the 3rd table that I am comparing against.
Can I nest Exists in a Where clause?
If so how is the 2nd exists statement added to the query?
see my sample query below
================================================== ===
'With 2 tables
SELECT DISTINCT s1.ID, s1.SITE
FROM SITE_TBL s1
WHERE EXISTS (SELECT *
FROM DEVICE_TBL d1
WHERE s1.ID = d1.SITE_ID AND d1.DELETEFLAG <> 'D')
ORDER BY SITE
'with 3 tables this doesn't work
SELECT DISTINCT s1.ID, s1.SITE
FROM SITE_TBL s1
WHERE EXISTS (SELECT *
FROM DEVICE_TBL d1
WHERE s1.ID = d1.SITE_ID AND d1.DELETEFLAG <> 'D')
AND
(SELECT *
FROM BIG_TBL b1
WHERE d1.fqdn = b1.xyz)
ORDER BY SITE
================================================== ===
Thanks for the help
Jim
Previously same records exists in table having primary key and table having foreign key . we have faced 7 records were lost from primary key table but same record exists in foreign key table.
View 3 Replies View RelatedHello all,
I know that Oracle uses undo table spaces or rollback segments as its undo mechanism. what does Microsoft SQL Server use as its undo mechanism?
Krz
We're trying to implement an audit mechanism to track all changes made to our database and would appreciate any suggestions or alternate ways to do this, we're using the regular trigger based approach.
We also need to capture the user name of the current logged in user - this is NOT the sql server database user, it is at the application level, the user who logs into our site. We were planning to pass this username using context_info in SQL SERVER through triggers as described here - http://www.sqlservercentral.com/columnists/spustovit/easyauditingasharedaccount.asp
Alternatively I could add a userId field to every BC and store the logged in user's name there but I'd rather avoid that.
Hi all,
What is the equivalent for Oracle's nested table concept in SQL Server ?
Is there anything like TABLE( ) function to select from nested table as in Oracle ?
Eg in Oracle :
SELECT t.* FROM TABLE(nested_table_datatype) t;
( like the above query used in Oracle PL/SQL and 'nested_table_datatype' is a table datatype created in Oracle using 'create type ...' syntax )
Please give the equivalent for above...
Thanks,
Sam
I need to do some processing but only if a specific table 'table1' exists in the SQL Server database. How can I check if this 'table1' exists using either ADO.Net code or SQL Server query?
View 12 Replies View Related
hi,
I want to know through applicaiton how to check whether the Server named"Myserver" is Exists with Database named "MyDatabase" with Tables named ('Table1','Table2','Table3').
For any Database like (MS Access, Oracle, MS SQL-Server,MySQL)..
Please help me.....
thank's in advance.......
Paresh Patel.
Paresh.onmail@hotmail.com
I have a stored procedure in that attempts to perform a WHERE NOT EXISTS check to insert new records. If the table is empty, the procedure will load the table. However, an insert does not occur when a change to one or more source fields occurs against an existing record. The following is my code:
declare
@Created_By nchar(50)
,@Created_Date datetime
,@Updated_By nchar(50)
,@Updated_Date datetime
select @Created_By = system_user
[code]....
I expected that when one of the source values of any field in the second WHERE clause changes, that the procedure would insert a new record. Why is this not happening? One other note: I am not 'allowed' to use MERGE.
I've the following two tables:
create table #temp1 (name varchar(5), id int)
insert into #temp1 (name, id)
(
select 'a', 5
union
select 'a', 8
[code]....
As a result I would need every name from #temp2, where both searchred id's (5 & 8) from #temp1 are included.In this example i would like to get 'e' as a result, because in #temp2 'e' has the id's 5, 8 and 25.I've tried using cross apply, but cross apply returns every Name that have one of the ids... in this case it would also return 'c'...
Selectdistinct b.name
from(
Selectdistinct name
, id
from#temp1
wherename = 'a'
) as a
cross join(
Selectdistinct name
, id
from#temp2
) as b
wherea.id = b.id
Hello,
Quick question, I hope, I am trying to create a table that has a column that is a nested table in SQL Server 2005 Express Edition. Any ideas how I could go about doing this?
Sincerely,
James Simpson
Straightway Technologies Inc.
Say you have a fact table with a few columns that all reference the same key column in a dimension table, you want to write a view to return the information for those keys?
USE MyTestDB;
GO
SET NOCOUNT ON;
IF OBJECT_ID ('dbo.FactTemp' ,'U') IS NOT NULL
DROP TABLE dbo.FactTemp;
[Code] ....
I'm using very small data at the moment, and the query plan and statistics don't really say which way.
I've only been doing sql 2005 for a couple of months with minimal training so there's a lot I don't know.
What I'm trying to do is load a nested table (industry & customer totals) based on a value from the table it's nested in.
This is the relationship of the data.
I have at the highest group, an industry code, then a customer, then the part and then the fiscal year.
What I'm trying to accomplish is to get a group total (footer) for the (1) industry code and (2) the customer code. This footer would contain the fiscal years (ascending) and their monthly totals. I would like to take the industry code from table one and pass it to the select statement in the dataset that feeds the nested table. I've read this is not possible to load a dataset field into a parm but I've seen where some people know how to work around this. If you reply, please explain in simple terms. Thanks!
industry Customer Year OCT NOV DEC
001 - Signposts
M12345
Part 1
2006 5 6 2
2007 0 3 1
Part 2
2006 4 3 0
2007 1 0 7
Customer M12345 totals
2006 9 9 2
2007 1 3 8
M45678
Part 3
2007 8 4 7
2008 3 4 8
Part 4
2006 3 8 7
2007 5 6 6
Customer M45678 totals
2006 3 8 7
2007 13 10 13
2008 3 4 8
Industry 001 totals
2006 12 17 9
2007 14 13 21
2008 3 4 8
Hi, all experts here,
Thank you very much for your kind attention.
I am trying to create a new mining structure with case table and nested table, the case table (fact table) has alread defined the relationships with the nested table(dimension table), and I can see their relationship from the data source view. But why the wizard for creating the new mining structure showed that message? Why is that? And what could I try to fix it?
Hope it is clear for your help.
Thanks a lot for your kind advices and I am looking forward to hearing from you shortly.
With best regards,
Yours sincerely,
I need to find out if a Transaction ID exists in Table A that does not exist in Table B. If that is the case, then I need to insert into Table B all of the Transaction IDs and Descriptions that are not already in. Seems to me this would involve If Not Exists and then an insert into Table B. This would work easily if there were only one row. What is the best way to handle it if there are a bunch of rows? Should there be some type of looping?
View 12 Replies View RelatedHi, all here,
As we are allowed to select one table as both case table and nested table, however what is the benefit of using one table as both case table and nested table? Thanks in advance for your advices.
I am looking forward to hearing from you shortly.
With best regards,
Yours sincerely,
Why would someone choose to model a problem with a case and nested table versus just using a case tables with multiple rows?
For example, a simple customer and product scenario where you could say:
Mining Model DT_CustProd
(
[Id] ,
[Gender] ,
[Age]
[Products] Predict
(
[ProductName] ,
[Quantity]
)
)
But you could also model as:
Mining Model DT_CustProd
(
[Id] ,
[Gender] ,
[Age]
[ProductName] Predict,
[Quantity] Predict
)
and just insert multiple rows per Id/Gender/Age? Is there any rule of thumb to use here when deciding to model with a nested table?
I understand that a nested table essentially pivots the data (http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=408840&SiteID=1) and the data becomes an attribute, but how do you know if you want that, or you want the data as a value of an attribute?
Hi, all here,
I have a question about nested table use. I dont quite clearly see through why the nested table is very much necessary? I mean if we need information from both the current case table and nested table for mining models, we can just join both tables?
Thanks a lot in advance for any guidance and help.
I have a textbox1 control where a zip code is entered. What is the most efficient way in C# code behind to see if that zip code exists in tblZipCode? I only need to know if it is there, do not need to know how many occurances.
View 7 Replies View RelatedHI,
having a problem with a data loading from 2005 to 2000. Im using export & import wizard. But the problem comes when the user drops a table on 2005. Anyway to check if table exista then use the E&I to load the data.
I cant use the BCP as xp_shellcmd is disable.
Dear all,I have table called CATEGORY, which is defined as follows:CREATE TABLE CATEGORY(CATEGORY_ID INTEGER IDENTITY(1,1) NOT NULL,CATEGORY_NAME VARCHAR(40) NOT NULL CONSTRAINTUC__CATEGORY__CATEGORY_NAME UNIQUE,PARENT_CATEGORY_ID INTEGER,CATEGORY_ICON IMAGE,DEPTH INTEGER,CONSTRAINT PK__CATEGORY PRIMARY KEY (CATEGORY_ID))Supposly, the following snap shot was taken later:================================================== ============| CATEGORY_ID | CATEGORY_NAME | PARENT_CATEGORY_ID | DEPTH |================================================== ============| 1 | PC | NULL | 1 |--------------------------------------------------------------| 2 | Networks | 1 | 2 |--------------------------------------------------------------| 3 | Audio | 1 | 2 |--------------------------------------------------------------| 4 | Video | 1 | 2 |--------------------------------------------------------------| 5 | TV Cards | 4 | 3 |--------------------------------------------------------------| 6 | Graphics Cards | 4 | 3 |--------------------------------------------------------------| 7 | AGP | 6 | 4 |--------------------------------------------------------------| 8 | PCI | 6 | 4 |--------------------------------------------------------------| 9 | Input Devices | 1 | 2 |--------------------------------------------------------------and I'd like to create out of this hierarchy the following desired XMLfile:<?xml version="1.0" encoding="utf-8" ?><Hardware><Catgeory name="PC" id="1"><Catgeory name="Networks" id="2" /><Catgeory name="Audio" id="3" /><Catgeory name="Video" id="4"><Catgeory name="TV Cards" id="5" /><Catgeory name="Graphics Cards" id="6"><Catgeory name="AGP" id="7" /><Catgeory name="PCI" id="8" /></Category></Category><Catgeory name="Input Devices" id="9" /></Catgeory></Hardware>The reason for this file is that it will be a datasource of theTreeView Control new in asp.net 2.0.Now, programmateiclally using C#.net i started using the XmlDocument,XmlTextWriter and XmlTextReader Namespaces and started using susingrecurrsion to genearete this desired XML file out of the records in thesnapshot, but ...Is there an easy way of doing this using SqlServer 2005 with the newdatatype XML?*Any hint would also be ok*Best regards
View 12 Replies View RelatedHey gang,
I'm having some issues with nested table. This is my setup. [ProductTable] is the case table, and [CustomersTable] is a nested table. I'm trying to organize my algorithms around products.
[ProductTable]<---[CustomersTable]
[ProductTable] table only has product ID, and it is key.
[CustomersTable] table has variety of customer attributes (productID, customerID, location, demographics...) and CustomerRevenue is predict_only. ProductName is the key for the nested table.
I keep getting this error when I'm processing the mining models (Logical Regression and Neural Net).
Error (Data mining): In mining model, Estimate Neural Net, the algorithm does not allow table column as predictable.
Error (Data mining): Error validating attribute for the 'Estimate Neural Net' mining model.
When using Decision Tree, it processes OK, but the result is totally wrong. The model is empty.
Any ideas?
-Young K.
P.S. I'm trying to great a single model for multiple products. This is a label saving device that I'm trying. If this doens't work, I'll have to create a model for each product.
Hi all,I am in the process of creating a page that checks to see if a particular user exists in the database and if it does then send to welcome.aspx if not then accessdenied.aspx. The userid is requested from the query string.I have done some research and cannot find anything directly related, I have tried to add bits of code into what i think is the right place but I dont think what i am doing is correct. Can someone help and show me where my code is going wrong? Also is there a better/more efficient way to do what I am doing?Thanks in advance. default.aspx.csusing System;using System.Data;using System.Data.SqlClient;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;public partial class _Default : System.Web.UI.Page{ protected void Page_Load(object sender, EventArgs e) { string UserID = Request.QueryString["uid"]; //string TransferPage; if (UserID != null) { //initiate connection to db SqlConnection objConnect = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["MyConnection"].ConnectionString); string sql = "SELECT COUNT(*) FROM members WHERE UserID = '" + UserID + "'"; SqlCommand query = new SqlCommand(cmd, test); int count = (int)query.ExecuteScalar(); int aantal = -1; // some default value if can't insert record if (count == 0) // no existing record for username { Server.Transfer("accessdenied.aspx"); } else { Session["UID"] = UserID; Server.Transfer("welcome.aspx"); } } }}
View 7 Replies View Relatedi am using vb.net and ms sql server 2005 express.....what is the syntax for dropping a table if existsi have used this but it says incorrect syntax near if Dim cmda As New SqlCommand("drop table " + test + " if exists", New SqlConnection(strdb)) cmda.Connection.Open() cmda.ExecuteNonQuery() cmda.Connection.Close()any solutions???? plz only answer in vb.net and sql server express
View 8 Replies View RelatedWhat is the best way to programmatically determine if a temp table exists? In 6.5, I would use
IF EXISTS(SELECT * from tempdb..sysobjects where id = object_id('tempdb..#MyTable') and type = 'U')
But now that it is strongly discouraged to code against system tables, how could I re-write this statement?
The proper way to check the existence of a table would be:
IF OBJECTPROPERTY(object_id('tablename'), 'IsTable') = 1
However, to get this to run for a temp table, I think you'd have to change the database context to tempdb and then back to your database. That doesn't seem efficient.
I could use
IF object_id('tempdb..#MyTable') IS NOT NULL
But that's not guarenteeing that it's a table, right?
Any ideas?
How do I find out if a temporary table named '##test' exists? I have a stored
procedure that creates this table and if it exists another stored procedure
should do one thing, if it does not exist I want the SP to do something else.
Any help as to how I can determine if this table exists at the current time
would be greatly appreciated.
Thanks in advance for you help,
Jon
I need a snippet of code that will determine wether or not a table exists in a database...
thanx
in mysql i can drop a table or db if it currently exists using
drop table if exists [table1] or
drop database if exists [db1]
is there an equalivant in ms sql
thanks
Hi,
This my first time using the link server to read the files directly from within SQL2005, so issues the following link:-
EXEC sp_addlinkedserver
@server = N'MYVFPSERVER', -- Your linked server name here
@srvproduct=N'Visual FoxPro 9', -- can be anything
@provider=N'VFPOLEDB',
@datasrc=N'"C:PROGRAM FILESMICROSOFT VISUAL FOXPRO 9Samplesdata estdata.dbc"'
After that i can open query and do the import issues, but how can check if the table exists before issues the query.
Best regards
Hi,I am trying to create a script that deletes transaction tables and leavesmaster data like customer, vendors, inventory items, etc. How can I useTRUNCATE TABLE with an Exists? My problem is I have 200+ tables, if Isimply use a list like:truncate table01truncate table02truncate table03....I get errors if the table does not exist and have to manually run thetruncate statements. Some tables may not exist if that part of the app isnever used. I'm trying to make a list of all tables that could existwithout it erroring out 50+ times.Thanks in advance.
View 2 Replies View RelatedHi Guys
Am new to sql, and I wold appreciate help with optimising the folloing example. The result of the example should be to list a result with details of the Column names:
OPBal| Receipt| IssTrns| Transfer| ClBal
SELECT dbo.inventory.location, dbo.inventory.itemnum,
(select sum(dbo.matrectrans.linecost) where dbo.matrectrans.issuetype LIKE 'RECEIPT' ) As Receipt,
( select sum(dbo.matrectrans.linecost)where dbo.matrectrans.issuetype LIKE 'TRANSFER' ) As Transfer,
( select(dbo.IST_ITEMDETAIL.curbal*dbo.IST_ITEMDETAIL.avgcost)where dbo.IST_ITEMDETAIL.logdate='2006-07-20' ) As OpBal,
( select (IST_ITEMDETAIL.curbal*IST_ITEMDETAIL.avgcost)where IST_ITEMDETAIL.logdate='2006-08-21' ) As ClBal,
( sum(matusetrans.linecost) ) As IssTrnf
FROM dbo.matrectrans, dbo.matusetrans, dbo.IST_ITEMDETAIL , ( dbo.inventory inner JOIN dbo.item
ON dbo.inventory.itemnum = dbo.item.itemnum AND dbo.inventory.orgid = dbo.item.orgid )
WHERE dbo.inventory.location = dbo.matusetrans.storeloc
AND dbo.inventory.itemnum = dbo.matrectrans.itemnum AND dbo.inventory.siteid = dbo.matrectrans.siteid
OR dbo.inventory.location = dbo.matrectrans.tostoreloc AND dbo.inventory.itemnum = dbo.matusetrans.itemnum
AND dbo.inventory.siteid = dbo.matusetrans.siteid OR dbo.inventory.location = dbo.matrectrans.fromstoreloc
OR
dbo.inventory.location = dbo.ist_itemdetail.location AND dbo.inventory.itemnum = dbo.ist_itemdetail.itemnum
GROUP BY dbo.inventory.location, dbo.inventory.itemnum,dbo.matrectrans.issuetype,(dbo.IST_ITEMDETAIL.curbal*dbo.IST_ITEMDETAIL.avgcost),
dbo.IST_ITEMDETAIL.logdate,dbo.IST_ITEMDETAIL.curbal,dbo.IST_ITEMDETAIL.avgcost
hi all,
i have speed issue on displaying 4k line of records using temp table.. before this it works fine and fast.. but maybe when i starts joining group by it loads slower.
SELECT DISTINCT customlotno, itemid, ItemName, Ownership, TotalCTNInPlt, TotalCarton, sum(CartonPcs) AS CartonPcs, StorageID, StorageStatus ,OriginUOM, PickQtyUOM, WhsID, WhsName, LocID, Zone, Expirydate, recvDate
INTO #ByItemID
FROM (
SELECT * FROM tblItemdetail
)AS L1
GROUP BY customlotno, itemid, ItemName, ownership, TotalCTNInPlt, TotalCarton, StorageID, StorageStatus ,OriginUOM, PickQtyUOM, WhsID, WhsName, LocID, Zone, Expirydate, recvDate
SELECT *
FROM #ByItemID
ORDER BY CustomLotNo
DROP TABLE #ByItemID
----------------------------
or maybe just use something like nested SELECT like this, but cannot work:-
select customlotno, itemid, locid(
select * from tblitemdetail
where customlotno='IN28606000'
) AS T
GROUP BY customlotno, itemid, locid
~~~Focus on problem, not solution~~~