Super Key && Candidate Key....
Feb 26, 2008
can anyone explain what are superkeys & candidate keys with a simple example?
Thanx...
can anyone explain what are superkeys & candidate keys with a simple example?
Thanx...
I did lot of google but did not get script for candidate and super key. I do not have syntax to create candidate and super key in sql.
View 4 Replies View RelatedThe relation (table) schema is multimedia (mm_id, f_name, extension, directory, size).
1) Identify at least three super keys for the relation called ?multimedia?.
2) Identify at least two candidate keys for the relation called ?multimedia?
Thanks much
I have a table that looks like this:
ItemID TokenID WordCount
12345 11334 5
12345 3453 1
12345 546546 2
12345 242555 1
12345 556346 4
12345 346346 1
Code SnippetCREATE TABLE [dbo].[ItemTokensLink](
[ItemID] [int] NOT NULL,
[TokenID] [int] NOT NULL,
[WordCount] [int] NOT NULL DEFAULT ((1)),
CONSTRAINT [PK_ItemTokensLink_1] PRIMARY KEY CLUSTERED
(
[ItemID] ASC,
[TokenID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
So this table has now reached over 22 million rows. The problem is my machine only has 1GB ram....so SQl Server tries to load up the whole table and this is ~560MB....equals zero ram for ...well anything else!
Does SQL Server load up an entire table when performing an INSERT?
Code Snippet
INSERT INTO ItemTokensLink(ItemID, TokenID, WordCount)
SELECT DISTINCT @ItemID as ItemID, t.TokenID, Count(t.TokenID) as WordCount
FROM #Tokens t
Group by TokenID
@ItemID is parameter provided
#Tokens is a temp table create with a word list
Would partitioning help here?
The table is is 80% of the time added to and the ItemID will always increase. What is the best to deal with massive tables that are inserted to frequently?
How does SQL Server decide when to load a table into memory?
TIA
Hi What is the difference between Candidate key , composite key and alternate key. I went through many websites but I didn't get examples. There were only definitions. Can anyone please tell me the site or blogs that elaborate this concept RegardsKaran
View 2 Replies View RelatedI downloaded SQL Server 2008 Release Candidate (Express) Beta on 6/16/08. Installation started but failed. A message stated Microsoft NET Framework 2.0 SP2 needs to be installed first.
I downloaded SP2 and installed it. However, when I try again to install the SQL 2008 Release Candidate Beta I get the same message that SP2 must first be installed.
Can someone tell me how to make the SQL Beta version installer recognize the previously installed SP2 Service Pack?
Thanks, Norman
I'm use to working with MSaccess and coldfusion and am trying to convert to sql. I ran the upsize wizard in access and now see my DB in the SQL Query Analyzer. How do I open / modify / view the DB? I have zero experience with sql so treat me like a 5 year old.
And if anyone has any knowledge of connecting coldfusion with sql that would also help.
Thanks.
Begging your patience, I'm wondering if someone can help me with a beginner question. I am trying to write a query against our trouble ticket DB. I want to find tickets that have multiple tech assignments associated with a single ticket. How can write a query that says if in the CALLID field you find the same value more than once, return those rows and only those rows?
Thanks very much.
Hi,
I have a query that takes 15minutes to run the first time after sql server start but then for subsequent querys is superfast (less than 10 secs).
Why? What could I do to speed up the first run?
Here is the source:
Code Block
SELECT Articoli.Articolo, Articoli.BarCodeVen, Articoli.Descri, Articoli.Merce, Articoli.CodIVA, Articoli.UMBase, Articoli.PrzBase, Articoli.Sconto1, Articoli.Sconto2,
Articoli.ScontoFormula, Articoli.Ricarico, Articoli.TipoArt, Articoli.CatMerc, Articoli.CatOmo, Articoli.CatProvv, Articoli.CntrprtVen, Articoli.CntrprtAcq,
Articoli.Dispniblta, Articoli.Vendita, Articoli.SiCli, Articoli.SiFor, Articoli.NotaPriv, Articoli.NotaPubb, Articoli.Immagine, Articoli.Produttore, Articoli.SiMatr,
Articoli.OldCodArt, Articoli.Disattivo, Articoli.CatProd, Articoli.SotCatProd, Articoli.EsplKit, Articoli.ScaricoCom, Articoli.ImmagLun, Articoli.DataModCS,
Articoli.ValorizPr, Articoli.Natura, Articoli.UMSecScelta, Articoli.SecScelta, Articoli.Acquisto, Articoli.CntConsumi, Articoli.NonMovimentabile,
Articoli.ProvAgente, Articoli.Taglia, Articoli.Colore, Articoli.CodArtNeutro, Articoli.Collezione, Articoli.Assortimento, Articoli.Centro,
Articoli.InibisciRicercaUnMis, Articoli.Commessa, Articoli.DescriTesto, Articoli.Disattivabile, Articoli.KwTipoArt, Articoli.KwTipoArtNeutro,
Articoli.KwNeutro, Articoli.KwCollezione, Articoli.KwLinea, Articoli.KwModello, Articoli.KwMateriale, Articoli.KwComposizione, Articoli.KwPosRiga,
Articoli.KwVarRiga, Articoli.KwPosColonna, Articoli.KwVarColonna, Articoli.KwPos3D, Articoli.KwVar3D, Articoli.KwGrpVarRiga, Articoli.KwGrpVarColonna,
Articoli.KwGrpVar3D, Articoli.KwEtiMan, Articoli.KwAssortimento, Articoli.KwGrpFormule, Articoli.KwSpecimen, KwVarArticolo.TipoVariante,
KwVarArticolo.Variante, KwVarArticolo.Posizione, KwVarArticolo.Categoria, KwVarArticolo.DescriVariante,
KwVarArticolo.P07009Descrizione1 AS Descrizione1, KwVarArticolo.P07009Descrizione2 AS Descrizione2, CatOmo.Descri AS CatOmoDescri,
KwModelli.Descri AS DescriModello, KwMateriali.Descri AS DescriMateriale, MFDBCompon_Tomaia2.DatoTecnico,
MFDBCompon_Tomaia2.DBPosColonna, MFDBCompon_Tomaia2.DBPos3D, MFDBCompon_Tomaia2.CompNeutro,
MFDBCompon_Tomaia2.CompVarRiga, Articoli_1.Descri AS DescriCompNeutro, MFKwVariantiRiga.DescriVariante AS DescriRigaCompo,
CatProvv.Descri AS CatProvvDescri, MFDBCompon_Tomaia3.CompNeutro AS CompNeutroT3,
MFDBCompon_Tomaia3.CompVarRiga AS CompVarrigaT3, Articoli_2.Descri AS DescriCompNeutroT3,
MFKwVariantiRiga_1.DescriVariante AS DescriRigaCompoT3, MFDBCompon_Acc1.CompNeutro AS CompNeutroAcc1,
MFDBCompon_Acc1.CompVarRiga AS CompVarRigaAcc1, Articoli_3.Descri AS DescriCompNeutroAcc1,
MFKwVariantiRiga_2.DescriVariante AS DescriRigaCompoAcc1, MFDBCompon_Acc2.CompNeutro AS CompNeutroAcc2,
MFDBCompon_Acc2.CompVarRiga AS CompVarRigaAcc2, Articoli_4.Descri AS DescriCompNeutroAcc2,
MFKwVariantiRiga_3.DescriVariante AS DescriRigaCompoAcc2, MFDBCompon_SottoP_Tallonet.CompNeutro AS CompNeutroSottop,
MFDBCompon_SottoP_Tallonet.CompVarRiga AS CompVarRigaSottop, MFDBCompon_SottoP_Tallonet.DescriCompNeutroSottop,
MFDBCompon_SottoP_Tallonet.DescriRigaCompoSottop, MFDBCompon_SottoP_Tallonet.DatoTecnico AS DatoTecnicoSottop,
MFDBCompon_RicSol.CompNeutro AS CompNeutroRicSol, MFDBCompon_RicSol.CompVarRiga AS CompVarRigaRicSol,
MFDBCompon_RicSol.DescriCompNeutroRicSol, MFDBCompon_RicSol.DescriRigaCompoRicSol,
MFDBCompon_Fodera.CompNeutro AS CompNeutroFodera, MFDBCompon_Fodera.CompVarRiga AS CompVarRigaFodera,
MFDBCompon_Fodera.DescriCompNeutroFodera, MFDBCompon_Fodera.DescriRigaCompoFodera, MFDBCompon_Forma.Descri AS DescriForma,
MFDBCompon_Tacco.Descri AS DescriTacco, MFVar3D_Pos1.DescriVariante AS Descri_Pos1, MFVar3D_Pos2.DescriVariante AS Descri_Pos2,
MFVar3D_Pos3.DescriVariante AS Descri_Pos3, MFVar3D_Pos4.DescriVariante AS Descri_Pos4, MFListinoP00New.Prz AS P00,
MFListinoP00New.InVigoreDa AS DataP00, MFListinoP05New.Prz AS P05, MFListinoP05New.InVigoreDa AS DataP05, MFListinoPUSANew.Prz AS PUSA,
MFListinoPUSANew.InVigoreDa AS DataPUSA,
CASE WHEN KwVarArticolo.P07009Descrizione2 <> '' THEN KwVarArticolo.P07009Descrizione2 ELSE CASE WHEN Articoli.CatProvv = '30SPORT' THEN Articoli.KwNeutro
+ KwVarArticolo.Variante + '.jpg' ELSE Articoli.KwNeutro + '.jpg' END END AS MFFoto, MFListinoRUSANew.Prz AS RUSA,
MFListinoRUSANew.InVigoreDa AS DataRUSA, MFListinoRITANew.Prz AS RITA, MFListinoRITANew.InVigoreDa AS DataRITA, ArtMerce.Fornitore
FROM Articoli INNER JOIN
KwVarArticolo ON Articoli.Articolo = KwVarArticolo.Articolo INNER JOIN
CatOmo ON Articoli.CatOmo = CatOmo.Categoria INNER JOIN
KwMateriali ON Articoli.KwModello = KwMateriali.KwModello AND Articoli.KwMateriale = KwMateriali.KwMateriale INNER JOIN
KwModelli ON Articoli.KwModello = KwModelli.KwModello AND Articoli.KwMateriale = KwModelli.KwMateriale LEFT OUTER JOIN
ArtMerce ON Articoli.Articolo = ArtMerce.Articolo LEFT OUTER JOIN
MFListinoRUSANew ON KwVarArticolo.Variante = MFListinoRUSANew.VarRiga AND Articoli.KwNeutro = MFListinoRUSANew.Neutro LEFT OUTER JOIN
MFListinoRITANew ON KwVarArticolo.Variante = MFListinoRITANew.VarRiga AND Articoli.KwNeutro = MFListinoRITANew.Neutro LEFT OUTER JOIN
MFListinoPUSANew ON KwVarArticolo.Variante = MFListinoPUSANew.VarRiga AND Articoli.KwNeutro = MFListinoPUSANew.Neutro LEFT OUTER JOIN
MFListinoP05New ON KwVarArticolo.Variante = MFListinoP05New.VarRiga AND Articoli.KwNeutro = MFListinoP05New.Neutro LEFT OUTER JOIN
MFListinoP00New ON Articoli.KwNeutro = MFListinoP00New.Neutro AND KwVarArticolo.Variante = MFListinoP00New.VarRiga LEFT OUTER JOIN
MFVar3D_Pos4 ON Articoli.KwNeutro = MFVar3D_Pos4.Articolo LEFT OUTER JOIN
MFVar3D_Pos3 ON Articoli.KwNeutro = MFVar3D_Pos3.Articolo LEFT OUTER JOIN
MFVar3D_Pos2 ON Articoli.KwNeutro = MFVar3D_Pos2.Articolo LEFT OUTER JOIN
MFVar3D_Pos1 ON Articoli.KwNeutro = MFVar3D_Pos1.Articolo LEFT OUTER JOIN
MFDBCompon_Forma ON KwVarArticolo.Variante = MFDBCompon_Forma.DBVarRiga AND
Articoli.Articolo = MFDBCompon_Forma.DBNeutro LEFT OUTER JOIN
MFDBCompon_Tacco ON KwVarArticolo.Variante = MFDBCompon_Tacco.DBVarRiga AND
Articoli.Articolo = MFDBCompon_Tacco.DBNeutro LEFT OUTER JOIN
MFDBCompon_Fodera ON KwVarArticolo.Variante = MFDBCompon_Fodera.DBVarRiga AND
Articoli.KwNeutro = MFDBCompon_Fodera.DBNeutro LEFT OUTER JOIN
MFDBCompon_RicSol ON KwVarArticolo.Variante = MFDBCompon_RicSol.DBVarRiga AND
Articoli.KwNeutro = MFDBCompon_RicSol.DBNeutro LEFT OUTER JOIN
MFDBCompon_SottoP_Tallonet ON KwVarArticolo.Variante = MFDBCompon_SottoP_Tallonet.DBVarRiga AND
Articoli.KwNeutro = MFDBCompon_SottoP_Tallonet.DBNeutro LEFT OUTER JOIN
MFDBCompon_Acc2 INNER JOIN
Articoli AS Articoli_4 ON MFDBCompon_Acc2.CompNeutro = Articoli_4.Articolo INNER JOIN
MFKwVariantiRiga AS MFKwVariantiRiga_3 ON MFDBCompon_Acc2.CompVarRiga = MFKwVariantiRiga_3.Variante ON
KwVarArticolo.Variante = MFDBCompon_Acc2.DBVarRiga AND Articoli.KwNeutro = MFDBCompon_Acc2.DBNeutro LEFT OUTER JOIN
MFDBCompon_Acc1 INNER JOIN
Articoli AS Articoli_3 ON MFDBCompon_Acc1.CompNeutro = Articoli_3.Articolo INNER JOIN
MFKwVariantiRiga AS MFKwVariantiRiga_2 ON MFDBCompon_Acc1.CompVarRiga = MFKwVariantiRiga_2.Variante ON
KwVarArticolo.Variante = MFDBCompon_Acc1.DBVarRiga AND Articoli.KwNeutro = MFDBCompon_Acc1.DBNeutro LEFT OUTER JOIN
MFDBCompon_Tomaia3 INNER JOIN
Articoli AS Articoli_2 ON MFDBCompon_Tomaia3.CompNeutro = Articoli_2.Articolo INNER JOIN
MFKwVariantiRiga AS MFKwVariantiRiga_1 ON MFDBCompon_Tomaia3.CompVarRiga = MFKwVariantiRiga_1.Variante ON
KwVarArticolo.Variante = MFDBCompon_Tomaia3.DBVarRiga AND Articoli.KwNeutro = MFDBCompon_Tomaia3.DBNeutro LEFT OUTER JOIN
CatProvv ON Articoli.CatProvv = CatProvv.Categoria LEFT OUTER JOIN
Articoli AS Articoli_1 INNER JOIN
MFDBCompon_Tomaia2 ON Articoli_1.Articolo = MFDBCompon_Tomaia2.CompNeutro INNER JOIN
MFKwVariantiRiga ON MFDBCompon_Tomaia2.CompVarRiga = MFKwVariantiRiga.Variante ON
KwVarArticolo.Variante = MFDBCompon_Tomaia2.DBVarRiga AND Articoli.KwNeutro = MFDBCompon_Tomaia2.DBNeutro
WHERE (Articoli.KwCollezione = @KwCollezione) AND (Articoli.KwLinea = @KwLinea) AND (KwVarArticolo.TipoVariante = 52559872) AND
(Articoli.CatProvv IN (@CatProvv)) AND (Articoli.Disattivo = '0') AND (KwVarArticolo.Disattivo = '0') AND (ArtMerce.Fornitore IN (@Fornitore)) OR
(Articoli.KwCollezione = @KwCollezione) AND (Articoli.KwLinea = @KwLinea) AND (KwVarArticolo.TipoVariante = 52559872) AND
(Articoli.CatProvv IN (@CatProvv)) AND (Articoli.Disattivo = '0') AND (KwVarArticolo.Disattivo = '0') AND ('ALL' IN (@Fornitore)) OR
(Articoli.KwCollezione = @KwCollezione) AND (Articoli.KwLinea = @KwLinea) AND (KwVarArticolo.TipoVariante = 52559872) AND (Articoli.Disattivo = '0')
AND (KwVarArticolo.Disattivo = '0') AND (ArtMerce.Fornitore IN (@Fornitore)) AND ('ALL' IN (@CatProvv)) OR
(Articoli.KwCollezione = @KwCollezione) AND (Articoli.KwLinea = @KwLinea) AND (KwVarArticolo.TipoVariante = 52559872) AND (Articoli.Disattivo = '0')
AND (KwVarArticolo.Disattivo = '0') AND ('ALL' IN (@CatProvv)) AND ('ALL' IN (@Fornitore))
ORDER BY Articoli.CatProvv, Articoli.CatOmo, Articoli.Articolo, KwVarArticolo.Posizione
Thank you!
Roberto
Hi,
This is probably a no-brainer for most of you, but I'm really really new to sql.
I'm using ms sql 2005 (I think), and I'm making a scheduling program in VB that uses a database hosted on the sql server. Does sql come with archiving tools, or will I need to make something? All the other DBs on the server are 3rd party apps that have a little archiving tool as part of the utilities package. Will I have to make something like that to remove and save the old schedule entries? If so, can anyone point me in the right direction?
Thanks,
Chris
Well, I can't backup up my tran log - too big. I knew enough to know you have to back it up, didn't know enough to know that tran log backup is not included in "Full backup". Contractor installation set Growth to "un-restricted". Me, too swamped to delve deeply in time to learn this is a recipe for disaster, and then it was too late - System down because tran log filled up the disk...
(Ironically, this happened the morning of the first day of some training they sent me to - Microsoft's Programming a Microsoft SQL 2000 Database...)
So, some details... The drives on the system :
___ c: size 12G, free 7G
___ d: size 44.9G, free 10M
___ e: size 44.9G, free 13G
Tran log info :
___ filename .... d:Microsoft SQL ServerMSSQLdatahorizon_Log.LDF
___ name ........ horizon_Log
___ size ........ 5606392
___ maxsize ..... -1
___ growth ...... 10
___ status ...... 1081410
___ filename ...E:Horizon_Log2Horizon_Log2_Temp
___ name ........ horizon_1_Log
___ size ........ 167168
___ maxsize ..... 640000
___ growth ...... 640
___ status ...... 32834
(there are 2 because the other totally green newbie dba added 1 the day the system went down...)
I *thought* the addition of the 2nd tran log file meant the 1st file was no longer part of the picture, and that my available free disk space was sufficient to backup the 2nd tran log file.
Clearly I'm missing something - when I try to back up, I get this in SQL server error log :
___ Operating system error 112(There is not enough space on the disk.)
:confused:___ Does that mean it's trying to backup both the 1st & the 2nd tran logs?
:confused:___ Or is it only backing up the 2nd log, but trying to use D: (with only 10M)?
:confused:___ Or, is it using C: or E:, but tran log backups need some multiple of the size of the actual log, and there's not enough space even though there are multiple G?
I've been reading & googling. So far tried to truncate both files.
( dbcc shrinkfile('horizon_1_log',truncateonly) )
No luck, got these :
___ Cannot shrink log file 2 (horizon_Log) because all logical log files are in use.
___ Cannot shrink log file 3 (horizon_1_Log) because all logical log files are in use.
:confused:
:confused:___ How do I get them to be not "in use"?
:confused:___ Must the system be down for that? (certainly seems to...)
Also, checked out the EMPTYFILE option. Books Online says :
"Migrates all data from the specified file to other files in the same filegroup"
:confused: ___ Migrates to which "other files", exactly?
:confused: ___ Is this the right way to go?
:confused: ___ If so, how would I proceed after achieving a successul EMPTYFILE operation?
Also...
:confused: ___ In the database's Properties dialog, Transaction Log tab, there's a Delete button. Could that button be used to get me out of this difficulty?
Last, but not least... If I'm going about this altogether wrongly, can I get a pointer or two?
TIA for any and all feedback...
we just moved a database from a shared SQL 2000 server to SQLExpress on a VPS server. Every thing seems to work great, really no performance loss at all, except for one stored proc that is giving us problems. It's function is to update a history table, and then update the production table. On the old server, it would take less than a second to run this, now it takes anywhere from 45 seconds to 1 minute or it times out. This database is used on a classic asp web app. ANY help at all on this would be appreciated as I am pulling my hair out trying to figure out what's wrong here. here is the proc.
------------------------------------------ code ----------------------------------------------
set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
SET NOCOUNT ON
go
ALTER PROCEDURE [dbo].[sp_UpdatePersonalization]
@p_id nvarchar(50),
@cust_num varchar(50),
--@publication varchar(25),
@full_name varchar(500),
@email varchar(200),
@web_address varchar(300),
@include_web bit,
@ReturnAddressYN varchar(1),
@include_email bit,
@job_title varchar(500),
@company_name varchar(500),
@tagline varchar(1000),
@phone1 varchar(30),
@phone2 varchar(30),
@phone3 varchar(30),
@phone4 varchar(30),
@phoneext1 varchar(10),
@phoneext2 varchar(10),
@phoneext3 varchar(10),
@phoneext4 varchar(10),
@phonedesc1 varchar(20),
@phonedesc2 varchar(20),
@phonedesc3 varchar(20),
@phonedesc4 varchar(20),
@company_mail_address varchar(500),
@masthead varchar(250),
@verbiage_page1 varchar(1400),
@verbiage_page4 varchar(2650),
@inc_bbb bit,
@inc_ehl bit,
@inc_eho bit,
@inc_rl bit,
@p_comments varchar(500),
@p_update_flag varchar(10)
--@frequency varchar(50),
--@mail varchar(50),
--@fold varchar(50),
--@contact varchar(50),
-- do not add this on the update! @date_added,
AS
declare @last_updated datetime
select @last_updated=GETDATE()
declare @set_update bit
--if @p_update_flag='False'
--select @set_update = 1
--else
--select @set_update = 0
if @p_update_flag='False'
INSERT INTO pers_main_arch
(
p_id,
cust_num,
publication,
full_name,
email,
web_address,
include_web,
include_email,
job_title,
company_name,
tagline,
phone1,
phone2,
phone3,
phone4,
phoneext1,
phoneext2,
phoneext3,
phoneext4,
phonedesc1,
phonedesc2,
phonedesc3,
phonedesc4,
company_mail_address,
masthead,
verbiage_page1,
verbiage_page4,
inc_bbb,
inc_ehl,
inc_eho,
inc_rl,
p_comments,
frequency,
mail,
fold,
contact,
date_added,
last_updated,
start_month,
ReturnAddressYN
)
SELECT
pm.p_id,
pm.cust_num,
pm.publication,
pm.full_name,
pm.email,
pm.web_address,
pm.include_web,
pm.include_email,
pm.job_title,
pm.company_name,
pm.tagline,
pm.phone1,
pm.phone2,
pm.phone3,
pm.phone4,
pm.phoneext1,
pm.phoneext2,
pm.phoneext3,
pm.phoneext4,
pm.phonedesc1,
pm.phonedesc2,
pm.phonedesc3,
pm.phonedesc4,
pm.company_mail_address,
pm.masthead,
pm.verbiage_page1,
pm.verbiage_page4,
pm.inc_bbb,
pm.inc_ehl,
pm.inc_eho,
pm.inc_rl,
pm.p_comments,
pm.frequency,
pm.mail,
pm.fold,
pm.contact,
pm.date_added,
pm.last_updated,
pm.start_month,
pm.ReturnAddressYN
FROM pers_main pm
WHERE pm.cust_num = @cust_num
if @p_update_flag='True' OR @p_update_flag='False' OR @p_update_flag IS NULL OR @p_update_flag=''
UPDATE pers_main SET
--cust_num=@cust_num,
--publication=@publication,
full_name=@full_name,
email=@email,
web_address=@web_address,
include_web=@include_web,
include_email=@include_email,
job_title=@job_title,
company_name=@company_name,
tagline=@tagline,
phone1=@phone1,
phone2=@phone2,
phone3=@phone3,
phone4=@phone4,
phoneext1=@phoneext1,
phoneext2=@phoneext2,
phoneext3=@phoneext3,
phoneext4=@phoneext4,
phonedesc1=@phonedesc1,
phonedesc2=@phonedesc2,
phonedesc3=@phonedesc3,
phonedesc4=@phonedesc4,
company_mail_address=@company_mail_address,
masthead=@masthead,
verbiage_page1=@verbiage_page1,
verbiage_page4=@verbiage_page4,
inc_bbb=@inc_bbb,
inc_ehl=@inc_ehl,
inc_eho=@inc_eho,
inc_rl=@inc_rl,
p_comments=@p_comments,
--frequency=@frequency,
--mail=@mail,
--fold=@fold,
--contact=@contact,
--date_added,
last_updated=@last_updated,
updated_flag=1,
ReturnAddressYN=@ReturnAddressYN
WHERE cust_num=@cust_num
------------------------------------------ code ----------------------------------------------
Hi, I really need this help urgently.
I need to send an email when the dueDate(field name in database) is equal to today's date... I have come out with this code with the help of impathan(jimmy i did not use ur code cos i not very sure sry)... below is the code with no error... but it jus wun send email...
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load, Me.Load
con1.Open()
Dim cmd As New SqlCommand
cmd.CommandText = "select * from custTransaction where convert(datetime,dueDate,101) = convert(datetime,GetDate(),101)"
'Set the connect the command object should use
cmd.Connection = con1Dim da As New SqlDataAdapter(cmd)Dim ds As New DataSet
da.Fill(ds)
con1.Close()
If Not ds.Tables(0) Is Nothing ThenIf ds.Tables(0).Rows.Count > 0 Then
Dim objEmail As MailMessage = New MailMessage
objEmail.From = New MailAddress("my@email.com.sg")objEmail.To.Add(New MailAddress("my@email.com.sg"))
objEmail.Subject = "Due Date Reaching"objEmail.Body = Session("dueName")
objEmail.Priority = MailPriority.Normal
Dim SmtpMail As New SmtpClient("servername")
SmtpMail.Send(objEmail)
End If
End If
End Sub
Note: I am veri sure that database has the data field dueDate with the value 11/16/2007 smalltimedate(mm/dd/yyyy)
Realli veri urgent Thanks so much for ur'll help
I have extensively revied both of the design methodologies and I cannot come up with a single clear reason to use one over the other!
Type - Attributes is where you have a table holding the type categories, type, a table holding the type attributes expected and then a table holding the type attribute value:
tbAutombbileCategories
CategoryID | Category
-------------------------------
1 | Car
2 | Truck
3 | Motorcycle
tbAutomobileAttributes
AttributeID | fkCategoryID | Attribute
-------------------------------------------
1 | 1 (car) | Doors
2 | 2 (truck) | Cab
3 | 2 (truck) | Capacity
tbAutomobile
VIN | Category | Make | Model
-------------------------------------
1 | 1 | Honda | Accord
2 | 2 | Ford | F150
tbAutomobileAttributeValues
fkVIN | fkAttributeID | Value
---------------------------------
1 | 1 | 2
2 | 1 | 0
2 | 2 | 1000
Now the above sure is flexible in the sence that a type of automobile can be added without affecting the database schema, but was if some attributes do not take a numeric value? How do you handle computations on attributes specific attributes? Why would I use this structure as opposed to the super type - sub type as shown below?
tbCategories
CategoryID | Category
--------------------------
1 | Cars
2 | Trucks
tbAutomobile (Super Type)
VIN | fkCategoryID | Make | Model
-------------------------------------
1 | 1 |Honda | Accord
tbCars
fkVIN | Doors |
-----------------
1 | 2
tbTrucks
fkVIN | Cab | Capacity
---------------------------
2 | 0 | 1000
Now, adding new sub types probably isn't very flexible but, now you can specify data types for each attribute instead of using sql_variant, which by the documentation cannot be used in aggregate functions and may render poor result when used with ADO.
Regardless of the method used, alot of back end coding is required for computations, what table to send the attributes, etc...
Can anyone please help me clarify. What method is best and why. So far I am leaning for option 2. More work but seems to be more flexible in the sence of customization of each datatype.
E.G., what if you wanted to specify attributes about the cap that can be supplied to trucks?
tbTrucks
fkVIN | Cab | Capacity | fkCapID
--------------------------------------
2 | Y | 1000 | 1
tbCaps
CapID | Vendor | Price | et....
Any thoughts at all? I thought this would have been a pretty damn hot topic!
Mike B
Is there a way to do a super-table join ie two table join with no matching criteria? I am pulling in a sheet from XL and joining to a table in SQLServer. The join should read something like €œfor every row in the sheet I need that row and a code from a table. 100 rows in the sheet merged with 10 codes from the table = 1000 result rows.
This is the simple sql (no join on the tables):
select 1.code, 2.rowdetail
from tblcodes 1, tblelements 2
But how to do this in SSIS?
Thanks - Ken