Replication Methods
Aug 31, 2007Hi,
I'm a newbee to replication and wanted to know about the whole mechanism of replication and how is two way replication implemnted on 2 diffrent servers located at 2 different remote locations????
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SQL Connection Methods
Jun 5, 2007Set myConn1 = Server.CreateObject("ADODB.Connection")
Set myRs1 = Server.CreateObject("ADODB.Recordset")
Can anybody tell me what the ADODB in these two statements is telling me?
UDT For Division Methods
Sep 4, 2007Hi,
I plan to implement UDT for division methods.
The following fragment TSQL with zero check:
DECLARE @a int, @b int
SELECT
CASE WHEN @b = 0 THEN NULL
ELSE @a / @b
END
Clr UDT may look like this and script will be shorter.
DECLARE @a int, @b int
SELECT @a Type :: divide(@b)
Is that better to use UDT ?
Anyone have try this before?
Methods Within An Assembly
Apr 4, 2007Is there a way to retrieve the methods within an assembly that are attributed with SqlTrigger or SqlProcedure using T-SQL?
View 1 Replies View RelatedSQL Table Lookup Methods
Aug 29, 2006I am looking for a good method to do table lookups in a 2003 SQL database. I am retrieving products from an item table and then want to do value lookups in related tables in the same database like category name, category type, brand name etc. These values are referenced in the item master file by guid links to related tables.I am using a datareader to loop through the Select records and then I am writing results to a tab delimited data file for a data conversion. I am limited to net 1.1 and so can't use the 2.0 executescalar for single lookups.What would be the more efficienct method to use?'Dim myItemData As New DataReader Dim myItemReader As SqlClient.SqlDataReaderDim myItemCommand As New SqlClient.SqlCommand Dim myConnection = New SqlClient.SqlConnection("server=sql01.xxx") myItemCommand.Connection = myConnectionmyItemCommand.CommandText = "SELECT ""mf_items"".""item_guid"", ""mf_items"".""item_description"", ""mf_items"".""item_wholesale_price"", ""mf_items"".""item_description_title"",""mf_items"".""item_cd"",""mf_items"".""category_guid"" FROM ""CDB006"".""dbo"".""mf_items"" WHERE ""mf_items"".""item_closed"" = 0 And ""mf_items"".""item_visible"" = 1 AND ""mf_items"".""item_available"" = 1"myItemCommand.Connection.Open()myItemReader = myItemCommand.ExecuteReader()Dim myfileout As StreamWritermyfileout = File.CreateText(Server.MapPath("out.txt"))myfileout.WriteLine("link" & vbTab & "title" & vbTab & "description" & vbTab & "price" & vbTab & "image_link" & vbTab & "category" & vbTab & "id")While myItemReader.ReadIf myItemReader.Item(4).ToString() > "" And Val(myItemReader.Item(2).ToString) > 0 Then'what method to to look up for example the category name using the category_quid referenced in the item master'Write out record for parts file
View 2 Replies View RelatedVarious Methods Of Storing Images
Jun 26, 2000I'm fiddling around with my sql server in my home computer. I would like to store a different image in each row of the product table (for example). All the pics are now in my hard disk. I gather from various discussion boards that there are several ways of saving images -
1. INTERNALLY
a)Use VB. Run in ISQL/w
b) Use insert statement. INSERT INTO EMP(empno,empname ,Picture_Id)
VALUES('E1235','Anthony','c:PhotosAnthony.jpg')
c) Use isql/w & TSQL statement
d) Use sqlgetdata and sqlputdatn
e) Use textcopy in binn directory.
f) Use VB & ADO
2. EXTERNALLY
a)store the image externally and simply store the path to it in a plain
varchar variable.
My questions are :-
(i) Can I save images simply using 1b)?
(ii)Is 2a) correct ? Do I just type the name of the image file in my harddisk as the value in the table ?
(iii) If I have the database linked to the internet and have it hosted by a commercial server in the future, will I have a nightmare reentering all the path names when I upload the database into the commercial server?
(iv) What are the pros and cons of the various methods listed in 1.
Methods For Restoring The Master Db
Nov 16, 2006Everytime I attempt to restore the master database, it corrupts the entire instance of SQL server 2000. I have been using the method out on Microsoft's Knowledgebase:
http://support.microsoft.com/kb/822852/en-us
using sqlservr.exe and the switches -c -m -T3608 -T4022
I would like to know if anyone has other methods of restoring the master database from a backup device.
Performance Tuning Methods
Mar 16, 2004Hello everyone:
Can anyone list the general performance tuning methods? Thanks a lot.
ZYT
SSIS Deployment Methods
Oct 12, 2007I have developed the SSIS project, but I have a problem with deployment. My users are statistic people and SSIS packges they use are cleaning the raw data for them. Since they would like to run this SSIS package by themselves whenever they want, I need some deployment method that is easy for them to run (they are really not IT oriented people). The problem I encountered is that there is no visual studio (integration service client) installed on there computer, but they are allowed to access several dbs and server on the net.
Can someone tell me what is the best solution for this type of deployment?
Questions About Various DB Connection Methods.
Dec 15, 2006Hello All,
I am looking to get some guidance and feed back from the community as to the prevalence and usage of the following technologies:
ODBC Descriptor support
OLE DB support
External Linked Server support
Data Link support for Data Transformation Services
Specifically I am hoping to find out when each technology should be used and the types of applications that use them. Additionally, I am wondering if there are alternatives to these technologies and why they may have been used instead.
Any guidance/feed back is appreciated.
Thanks,
.rss Methods No Longer Supported
Feb 9, 2006I am having a problem running a sql2k report service script on my new sql2005 server. It seems that the methods SessionHeader() and rs.render are no longer suport. can someone help me figure out what I need to do to continue automating my report running?
rss file contents: (the parts that should matter)
-----------------------------------------------------------------------------------------
Report Parameters
Dim branch as string = nothing
Dim skipreport as string = nothing
dim skip as integer = 0
dim allbranchreport as string = nothing
dim allbranch as integer = 0
dim report as CatalogItem
dim repname as string = nothing
dim specificreport as string = nothing
dim filepath as string = nothing
dim errorpath as string = nothing
dim basefilepath as string = nothing
dim baseerrorpath as string = nothing
dim errorlog as integer = 0
Dim parameters() As ParameterValue = nothing
Dim paramcount as integer = 0
' Render arguments
Dim result As Byte() = Nothing
Dim reportPath As String = nothing
'Dim format As String = "PDF"
Dim format as string = "EXCEL"
Dim historyID As String = Nothing
Dim devInfo as string = Nothing
Dim credentials As DataSourceCredentials() = Nothing
Dim showHideToggle As String = Nothing
Dim encoding As String
Dim mimeType As String
Dim warnings As Warning() = Nothing
Dim reportHistoryParameters As ParameterValue() = Nothing
Dim streamIDs As String() = Nothing
Dim sh As New SessionHeader()
rs.SessionHeaderValue = sh
Dim omitdocmap as string = "True"
'**************************************
'**************************************
'Repset run
Dim repset as string = ""
for each repset in repsetlist
specificreports = specificreportsstart
if specificreports = 0 then
select case repset.tolower
case "all"
specificreports = 0
case "brkctr"
specificreports = 1
reportcount = reportset_brkctr.getupperbound(0)
redim specificreportslist(reportcount)
for reportloop = 0 to reportcount
specificreportslist(reportloop) = reportset_brkctr(reportloop)
next
case "cashmgmt"
specificreports = 1
reportcount = reportset_cashmgmt.getupperbound(0)
redim specificreportslist(reportcount)
for reportloop = 0 to reportcount
specificreportslist(reportloop) = reportset_cashmgmt(reportloop)
next
case "com"
specificreports = 1
reportcount = reportset_com.getupperbound(0)
redim specificreportslist(reportcount)
for reportloop = 0 to reportcount
specificreportslist(reportloop) = reportset_com(reportloop)
next
case "com_vw"
specificreports = 1
reportcount = reportset_com_vw.getupperbound(0)
redim specificreportslist(reportcount)
for reportloop = 0 to reportcount
specificreportslist(reportloop) = reportset_com_vw(reportloop)
next
repset = "com"
case "comcons"
specificreports = 1
reportcount = reportset_comcons.getupperbound(0)
redim specificreportslist(reportcount)
for reportloop = 0 to reportcount
specificreportslist(reportloop) = reportset_comcons(reportloop)
next
case "cons"
specificreports = 1
reportcount = reportset_cons.getupperbound(0)
redim specificreportslist(reportcount)
for reportloop = 0 to reportcount
specificreportslist(reportloop) = reportset_cons(reportloop)
next
case "cons_vw"
specificreports = 1
reportcount = reportset_cons_vw.getupperbound(0)
redim specificreportslist(reportcount)
for reportloop = 0 to reportcount
specificreportslist(reportloop) = reportset_cons_vw(reportloop)
next
repset = "cons"
case "dep"
specificreports = 1
reportcount = reportset_dep.getupperbound(0)
redim specificreportslist(reportcount)
for reportloop = 0 to reportcount
specificreportslist(reportloop) = reportset_dep(reportloop)
next
case "staff"
specificreports = 1
reportcount = reportset_staff.getupperbound(0)
redim specificreportslist(reportcount)
for reportloop = 0 to reportcount
specificreportslist(reportloop) = reportset_staff(reportloop)
next
omitdocmapbranch = "False"
case "staff2"
specificreports = 1
reportcount = reportset_staff2.getupperbound(0)
redim specificreportslist(reportcount)
for reportloop = 0 to reportcount
specificreportslist(reportloop) = reportset_staff2(reportloop)
next
omitdocmapbranch = "False"
case else
specificreports = 1
redim specificreportslist(0)
specificreportslist(0) = "Undefined"
end select
if repset.tolower = "staff2" then repset = "staff"
End if
'Base values
basefilepath = basepath & client & "" & repset & ""
baseerrorpath = basepath & client & "" & "error_" & repset & "_"
'Reports List
Dim reports() as CatalogItem
reports = rs.ListChildren(basereportpath, False)
'Execution
if datasourceok = 1 then
for each report in reports
skip = 0
allbranch = allbranchrun
for each skipreport in skipreports
if report.name.tolower = skipreport.tolower then skip = 1
next
if skip = 0 then
if specificreports = 1 then
skip = 1
for each specificreport in specificreportslist
if report.name.tolower = specificreport.tolower then skip = 0
next
end if
end if
if skip = 0 then
for each allbranchreport in allbranchreports
if report.name.tolower = allbranchreport.tolower then allbranch = 1
next
Redim parameters(1)
parameters(0) = New ParameterValue()
parameters(0).name = "branchall"
parameters(1) = New ParameterValue()
parameters(1).Name = "branch"
'5 parameters reports
repname = report.name
if (repname.substring(0,5).tolower = "loans" or repname.substring(0,4).tolower = "locs") then paramcount = 4
if (repname.length >= 13) then
if repname.substring(0,13).tolower = "loans_beacons" then paramcount = 1
end if
if paramcount = 4 then
paramcount = 0
redim preserve parameters(4)
parameters(2) = New ParameterValue()
parameters(2).name = "comconsall"
if repset.tolower = "cons" or repset.tolower = "com" then parameters(2).value = 0 else parameters(2).value = 1
parameters(3) = New ParameterValue()
parameters(3).Name = "comcons"
if repset.tolower = "com" then parameters(3).value = "commercial" else parameters(3).value = "consumer"
parameters(4) = New ParameterValue()
parameters(4).Name = "brokered"
parameters(4).value = 0
if repset.substring(0,3).tolower = "brk" then parameters(4).value = 1
end if
'All Branches Reports
if allbranch = 1 then
parameters(0).value = "1"
parameters(1).value = "admin"
if client = "CSCU" then parameters(1).value = "newwst"
if clienttype = "vw" then parameters(1).value = "1"
errorlog = 0
filepath = basefilepath & report.name & ".xls"
errorpath = baseerrorpath & report.name & ".txt"
reportpath = basereportpath & "/" & report.name
omitdocmap = omitdocmapall
devinfo = "<DeviceInfo><OmitDocumentMap>" & omitdocmap & "</OmitDocumentMap></DeviceInfo>"
Console.WriteLine (repset.toupper & " " & report.name & " All branches")
Try
result = rs.Render(reportPath, format, historyID, devInfo, parameters, _
credentials, showHideToggle, encoding, mimeType, reportHistoryParameters, warnings, streamIDs)
sh.SessionId = rs.SessionHeaderValue.SessionId
Catch e As SoapException
errorlog = 1
Console.WriteLine(e.Detail.OuterXml)
Catch f as Exception
errorlog = 1
Console.writeline(f.message)
End Try
' Create an error log
If errorlog <> 0 then
Try
Dim stream As FileStream = File.Create(errorpath, 1024)
Console.WriteLine("Errorlog created: " & errorpath)
stream.Close()
Catch g As Exception
Console.WriteLine(g.Message)
End Try
End if
' Write the contents of the report to a file.
If errorlog <> 1 then
Try
Dim stream As FileStream = File.Create(filepath, result.Length)
stream.Write(result, 0, result.Length)
Console.WriteLine("Result written to file: " & filepath)
stream.Close()
Catch e As Exception
Console.WriteLine(e.Message)
End Try
end if
'Other Reports
else
parameters(0).value = "0"
for each branch in branches
parameters(1).value = branch
errorlog = 0
if branch <> "h/o" then
filepath = basefilepath & branch & "" & report.name & ".xls"
else
filepath = basefilepath & "ho" & report.name & ".xls"
end if
if branch <> "h/o" then
errorpath = baseerrorpath & branch & "_" & report.name & ".txt"
else
errorpath = baseerrorpath & "ho_" & report.name & ".txt"
end if
reportpath = basereportpath & "/" & report.name
omitdocmap = omitdocmapbranch
devinfo = "<DeviceInfo><OmitDocumentMap>" & omitdocmap & "</OmitDocumentMap></DeviceInfo>"
Console.WriteLine (repset.toupper & " " & report.name & " " & "Branch: " & branch)
Try
result = rs.Render(reportPath, format, historyID, devInfo, parameters, _
credentials, showHideToggle, encoding, mimeType, reportHistoryParameters, warnings, streamIDs)
sh.SessionId = rs.SessionHeaderValue.SessionId
Catch e As SoapException
errorlog = 1
Console.WriteLine(e.Detail.OuterXml)
Catch f as Exception
errorlog = 1
Console.writeline(f.message)
End Try
' Create an error log
If errorlog <> 0 then
Try
Dim stream As FileStream = File.Create(errorpath, 1024)
Console.WriteLine("Errorlog created: " & errorpath)
stream.Close()
Catch g As Exception
Console.WriteLine(g.Message)
End Try
End if
' Write the contents of the report to a file.
If errorlog <> 1 then
Try
Dim stream As FileStream = File.Create(filepath, result.Length)
stream.Write(result, 0, result.Length)
Console.WriteLine("Result written to file: " & filepath)
stream.Close()
Catch e As Exception
Console.WriteLine(e.Message)
End Try
end if
next
end if
end if
next
end if
next
----------------------------------------------------------------------------------------------------
I get this error message from cmd when I try and run my batch:
----------------------------------------------------------------------------------------------------
J:PRA Publisher>rs -i pra_publisher.rss -s http://localhost/reportserver -l 0
The specified script failed to compile with the following errors:
J:PRA Publisher> "C:WINDOWSMicrosoft.NETFrameworkv2.0.50727vbc.exe" /t:exe
/main:MainModule /utf8output /R:"System.dll" /R:"System.Xml.dll" /R:"System.Web
.Services.dll" /R:"C:Program FilesMicrosoft SQL Server90Toolsinn
s.exe" /
out:"C:Documents and SettingsetopLocal SettingsTemp1fw7qn9k.exe" /debug-
"C:Documents and SettingsetopLocal SettingsTemp1fw7qn9k.0.vb" "C:Docu
ments and SettingsetopLocal SettingsTemp1fw7qn9k.1.vb"
Microsoft (R) Visual Basic Compiler version 8.0.50727.42
for Microsoft (R) .NET Framework version 2.0.50727.42
Copyright (c) Microsoft Corporation. All rights reserved.
C:Documents and SettingsetopLocal SettingsTemp1fw7qn9k.1.vb(253) : error
BC30002: Type 'SessionHeader' is not defined.
Dim sh As New SessionHeader()
~~~~~~~~~~~~~
C:Documents and SettingsetopLocal SettingsTemp1fw7qn9k.1.vb(254) : error
BC30456: 'SessionHeaderValue' is not a member of 'Microsoft.SqlServer.Reporting
Services2005.ReportingService2005'.
rs.SessionHeaderValue = sh
~~~~~~~~~~~~~~~~~~~~~
C:Documents and SettingsetopLocal SettingsTemp1fw7qn9k.1.vb(434) : error
BC30456: 'Render' is not a member of 'Microsoft.SqlServer.ReportingServices2005
.ReportingService2005'.
result = rs.Render(reportPath, format, historyID, de
vInfo, parameters, _
~~~~~~~~~
C:Documents and SettingsetopLocal SettingsTemp1fw7qn9k.1.vb(436) : error
BC30456: 'SessionHeaderValue' is not a member of 'Microsoft.SqlServer.Reporting
Services2005.ReportingService2005'.
sh.SessionId = rs.SessionHeaderValue.SessionId
~~~~~~~~~~~~~~~~~~~~~
C:Documents and SettingsetopLocal SettingsTemp1fw7qn9k.1.vb(496) : error
BC30456: 'Render' is not a member of 'Microsoft.SqlServer.ReportingServices2005
.ReportingService2005'.
result = rs.Render(reportPath, format, historyID
, devInfo, parameters, _
~~~~~~~~~
C:Documents and SettingsetopLocal SettingsTemp1fw7qn9k.1.vb(498) : error
BC30456: 'SessionHeaderValue' is not a member of 'Microsoft.SqlServer.Reporting
Services2005.ReportingService2005'.
sh.SessionId = rs.SessionHeaderValue.SessionId
~~~~~~~~~~~~~~~~~~~~~
--------------------------------------------------------------------------------------------------------------------
Any advice on how to fix this would be graetly appreciated. Thanks!
Sql Compact Edition And Methods
Feb 7, 2007i had read information about sce and i had not unsderstood a little thing:
is it possible or not to use a dataset with that version of sql server? i have a class that access the database with some functions and one of then return a dataset. the dataset is not to be used because it does not make sense with sql server compact edition or it cannot by use at all cause sql server compact edition does not support it?
thkx and by the way i think that it's a great product!
Calling Non-static Methods In Dll
May 31, 2007Hello,
I have a dll which is developed in C#. I have made a reference to it from Reporting Services under Report Properties.
My problem is, that the methods in this dll are not static. Therefore under the Classes in Report Properties I have written the class-name and the instance-names of the instances that I need to use from this class (as I understand it, this is what you have to do if using non-static methods). In a text-box, I call one of the instances in the class, but I get this error:
[rsInvalidName] 'MyMethod()' is not a valid code class name. Names of objects must be CLS-compliant identifiers.
What exactly have I done wrong here?
Thanks
/Peter
Methods For Handling Large Datasets
Apr 7, 2008Lets say you want to offer users access to a table that has over 1,000,000 records in it. You dont want to fetch the entire table into a dataset. Even with paging, it will still cause a performance lag, will it not ?Lets say there was a column that held last names. You could then divide up all the data in to alphabetical groups by letter. That will at least let you split up the data 26 different ways (letters in teh alphabet). Thats still roughly 38,000 possible records in the dataset at any given time. I suppose since the database and web server are very close to each other, physically, the latency shouldnt be too bad. However, Im worried about having several dozen or more users, each requesting datasets with tens of thousands of records. That would cause the memory use on the web server to spike most likely. Right now, its just one user do this sort of processing, but that might grow to include several dozens.ideas ?
View 3 Replies View RelatedThe Three Methods Of Update MSSQL Table, Which Is The Best?
Mar 8, 2006In order to update a MSSQL table, named [Table_1]. The procedure is:
(@id int,@Field0 nvarchar(1000) = NULL,@Field1 nvarchar(1000) = NULL,... ...@Field9 nvarchar(1000) = NULL)Method 1:
UPDATE Table_1SET Field0 = CASE WHEN @Field0 IS NULL THEN Field0 ELSE @Field0 END, Field1 = CASE WHEN @Field1 IS NULL THEN Field1 ELSE @Field1 END, ... ... Field9 = CASE WHEN @Field9 IS NULL THEN Field9 ELSE @Field9 ENDWHERE id = @id
Method 2
IF @Field0 IS NOT NULL UPDATE Table_1 SET Field0 = @Field0 WHERE id = @id ... ... UPDATE Table_1 SET Field9 = @Field9 WHERE id = @id
Method 3:
DECLARE @SQL nvarchar(max)DECLARE @NeedComma bitSET @SQL = 'UPDATE Table_1 SET 'SET @NeedComma = 0IF @Field0 IS NOT NULL BEGIN IF @NeedComma = 1 SET @SQL = @SQL + ', ' SET @SQL = @SQL + 'Field0 = @Field0' SET @NeedComma = 1 END... ...IF @Field9 IS NOT NULL BEGIN IF @NeedComma = 1 SET @SQL = @SQL + ', ' SET @SQL = @SQL + 'Field9 = @Field9' SET @NeedComma = 1 ENDSET @SQL = @SQL + ' WHERE id = @id'EXEC sp_executeSQL @SQL, N'@id int,@Field0 nvarchar(1000), ... ... , @Field9 nvarchar(1000)', @id = @id, @Field0 = @Field0, ... ... , @Field9 = @Field9
Which is the best? Thanks!
Data Importing And Updating Methods
Dec 10, 2007Let me see if I can explain what I'm trying to do (actually am doing now but with methods that I know can improve), and hopefully someone can give me some thoughts on the best way to do this (for maximum speed).
I've got data that comes from a couple of different sources that I'm updating and compiling nightly. On each file there can be different fields of data (some memo fields, some numbers, some text, etc. but all a subset of a master list of fields in my table). I then need to take that data and basically update my existing records (or insert new records if they don't exist based on an id which is in the incoming files). The current program does this all by looping through the data and creating sql statements for the inserts and updates. I think using SSIS or bulk inserts after writing my data to a file, i should be able to speed this up.
To me the "gotchas" are that each file may have different columns of data and I can't write different imports for each one. So I either have to have it be able to determine the columns for each piece of data and match when loading or updating or I could recode my program to basically insert the missing columns (should be doable).
Any thoughts on the best way to do it? Writing out to a file for SSIS to use but having it only write out new records and then doing updates through another method or ? I know SQL Server 2005 fairly well for basics on SQL but haven't used SSIS so will have to learn or outsource so any good starter points or tips would help. Seems the updates are where I'm a bit more confused on the very best way to do it.
I'm also stripping out html in one of the fields and creating a secondary field that doesn't have the html so I'm assuming the best is probably to do that while writing out the file I may use for whatever system but if there is a way to do it inside SQL or SSIS and make it happen quickly (so it doesn't lock the database) that would be great.
Methods To Move Existing DTS Packages
Mar 19, 2008I need to move total of 50 DTS packages from SQL 2000 to SQL 2005.Could someone give me the best way to do this ?
Do I need to just save the package onto the new server OR do I use the DTS package migration wizard.
What are the problems that can arise ?
Accessing Static Methods Of A .net Dll, But From Sql2000?
Jan 15, 2007Is this somehow possible?
View 1 Replies View RelatedWeb Service Task: Cannot See The List Of Methods
Oct 24, 2007I am retrieving data from Web Services by using Web Service Task. In the General pane, I successfuly download the wsdl file. There are 3 methods included in this file. However, I cannot see these methods in the list box in Input pane. I have installed SP2. Could anyone tell me why?
View 1 Replies View RelatedHow To Access The Properties And Methods Of Rdl From Webpage.
Aug 14, 2007
Hi,
I have created a report in reporting service 2005 and i have succesfully integrated the report in asp.net webpage.
But i want to know whether it is possible to access the methods and properties of (report)rdl file in the asp.net webpage.
If it is possible then please tell me how to implement it
Thanks and Regards
Altaf Hussain N
What Methods Can Be Used To Improve The Reliability Of SSIS?
Sep 11, 2006Hi ,all here,
I am having a question about what other methods are avaliable in SSIS besides error outputs and checkpoints to improve the reliability of SSIS?
Thanks a lot in advance for any guidance and advices for that.
With best regards,
Yours sincerely,
Grouping Methods In A DLL, Where Is The Break Point?
May 19, 2006We have roughly 5000 methods generated into C# that need to get assembled into DLLs and then put out as assmeblies in a SQL Server database. We then intend on creating user-defined functions to call many of these directly.
We can break these 5000 down into bundles and make about 10 DLLs, OR we can make 5000 DLLs. What are the concerns from a run-time perspective ??
If we go with 5000 DLLs, will an end user performing a few ad-hoc queries that use these user-defined functions experience poorer performance than if we had 10 large DLLs ?
Any input is appreciated. We'll be trying to assess the performance ourselves, but I'm looking for any stories about using large numbers of DLLs.
Thanks
Scott
Methods To Generate ER Diagrams Programmatically
Sep 4, 2007Hi All,
Can anyone tell me if its possible to generate ER diagrams programmatically using SQL Server.
Any help would be highly appreciated.
Thanks
-Akash
Simple Methods To Optimise SQL Queries
Sep 18, 2006Hi, please excuse me if this seems like a daft or badly formed question.
A colleage mentioned that when constructing the where clause in a query that it was important what order the criteria were entered. They weren't sure themsleves but the idea was that starting from the bottom of the query you should add the criteria that will have the effect of reducing the data the most and then work 'up' the query back to the from clause.
As a dodgy example, if you have a staff table and you want to run a specific query on all staff over 75 that are male, then:
where gender = "male"
and age >- 75
The reasoning being that the age criteria would reduce the size of the data being worked on more than the gender criteria.
It's been a while since I've had to look at intermediate tables etc but i'm pretty sure this suggestion will not make any difference to the performance of a query.
Thanks,
Matt
Cannot Use Anonymous Methods Inside SQLCLR...
Sep 15, 2006Hi all,
The problem is: when you're trying to call in method MyMethod anonymous method that doesn't use local variables, deployment of the assembly will fail referring that MyMethod tries to store smth. in the static variable. Indeed, looking at the compiled CLR code, you can see that anonymous delegate is cached in the private static delegate and the call looks like:
If(ClassName.privateStaticDelegate == null)
ClassName.privateStaticDelegate = new MyDelegate(HiddenMethodName);
CallAnonymousMethod(ClassName.privateStaticDelegate);
Is there any workaround to fix this problem.
P.S. I googled about this problem and found only one article on it:
http://www.ayende.com/Blog/default,date,2005-12-26.aspx
Full Text Search For Find Methods
Nov 10, 2006Hello,I have to implement a method FindProduct, which takes a parameter search query and returns product based on the query.I think i can use full text search here but don't know how. I tried to read a various way but could not figure out. 1
2
3 [DataObjectMethodAttribute(DataObjectMethodType.Select,true)]
4 public DataLayer.shopDBDataSet.ProductsDataTable GetProducts()
5 {
6 return Adapter.GetProducts();
7 }
8
9 [DataObjectMethodAttribute(DataObjectMethodType.Insert, true)]
10 public bool AddProduct(string UPCCode, string Description, string Size)
11 {
12 shopDBDataSet.ProductsDataTable products = new shopDBDataSet.ProductsDataTable();
13 shopDBDataSet.ProductsRow productRow = products.NewProductsRow();
14
15 productRow.UPCCode = UPCCode;
16 productRow.Description = Description;
17 productRow.Size = Size;
18
19 products.AddProductsRow(productRow);
20 int rowsAffected = Adapter.Update(products);
21 return rowsAffected == 1;
22 }
23
24 [DataObjectMethodAttribute(DataObjectMethodType.Delete, true)]
25 public bool DeleteProduct(string UPCCode)
26 {
27 int rowsAffected = Adapter.Delete(UPCCode);
28 return rowsAffected == 1;
29 }
30
31 [DataObjectMethodAttribute(DataObjectMethodType.Select, false)]
32 public DataLayer.shopDBDataSet.ProductsDataTable FindProducts(string searchQuery)
33 {
34
35 throw new System.NotImplementedException();
36
37 }
38
You can see the method at line number 32. I could not figure out the way to implement it although i know full text search is a good choice.I have following table adapterGetProducts(); GetProductsByManufacturerName(); GetProductsByManufacturerID(), and GetProductsByUPCCode();Product table contains UPCCode, Description, Size columnsBut i need to get the product which returns the description containing search query. I know some of you have done something similar to this. Could you please guide me....Thanks in advance....
Need To Know Why Two Calculation Methods Result In Different Rounding Effect
Feb 23, 2004Hi All,
I have a view that does some calculations on data in the database. Note in the two code snippets, that the columns being used in the calculations are all type FLOAT(53).
My confusion stems from the fact that both code snippets should be functionally the same in my "view" (*snicker* I kill me...), but they return different results which I think are related to rounding issues.
The first snippet:
CREATE VIEW dbo.VIEW_Calculate_PortfolioIndex
AS
SELECT PP.PortfolioID AS PortfolioID,
PP.CreateDate AS CreateDate,
(ROUND((PPI.CloseIndex + (PPI.CloseIndex * PP.DailyPerChg / 100.00)), 2) * PP.AvgHighPriceRatio) AS HighIndex,
CASE WHEN PPI.CloseIndex IS NULL
THEN 100.00
ELSE ROUND((PPI.CloseIndex + (PPI.CloseIndex * PP.DailyPerChg / 100.00)), 2)
END AS CloseIndex,
(ROUND((PPI.CloseIndex + (PPI.CloseIndex * PP.DailyPerChg / 100.00)), 2) * PP.AvgLowPriceRatio) AS LowIndex,
PP.Volume as Volume
FROM dbo.PortfolioIndex PPI INNER JOIN
dbo.PortfolioPerformance PP ON
PPI.PortfolioID = PP.PortfolioID AND
PPI.CreateDate = PP.PrevDate
GO
and it's result set:
PortfolioIDCreateDateHighIndexCloseIndexLowIndexVolume
102/20/2004781.11774.17769.53527896
112/20/2004757.97750.36742.93605740
122/20/2004509.92501.72494.854180516
132/20/2004988.23980.65973.58632337
142/20/20041283.261269.571259.37416145
And the second snippet:
CREATE VIEW dbo.VIEW_Calculate_PortfolioIndex
AS
SELECT PP.PortfolioID AS PortfolioID,
PP.CreateDate AS CreateDate,
(CloseIndex * PP.AvgHighPriceRatio) AS HighIndex,
CASE WHEN PPI.CloseIndex IS NULL
THEN 100.00
ELSE ROUND((PPI.CloseIndex + (PPI.CloseIndex * PP.DailyPerChg / 100.00)), 2)
END AS CloseIndex,
(CloseIndex * PP.AvgLowPriceRatio) AS LowIndex,
PP.Volume as Volume
FROM dbo.PortfolioIndex PPI INNER JOIN
dbo.PortfolioPerformance PP ON
PPI.PortfolioID = PP.PortfolioID AND
PPI.CreateDate = PP.PrevDate
which returns a different result set:
PortfolioIDCreateDateHighIndexCloseIndexLowIndexVolume
102/20/2004784.52774.17772.89527896
112/20/2004755.64750.36740.64605740
122/20/2004512.43501.72497.294180516
132/20/2004989.77980.65975.1632337
142/20/20041285.991269.571262.05416145
Specifically, I am concerned with the HighIndex and LowIndex values...since the only modification between the two code snippets is that in the second one, the HighIndex and LowIndex calculations use the column name of CloseIndex (as calculated in the select) in the calcs for those two columns, rather than repeating the code used to calculate the CloseIndex column's value.
I am confused as to why the results of the HighIndex and LowIndex caculations are different in the two selects, when the only change (in my view/expectations) is that one references the CloseIndex column, and the other one just reproduces the calculation itself
*scratching head*
any thoughts? Thanks,
Paul
New Databases In SQL Server...easy Design Methods?
Dec 2, 2005I am new to using SQL Server but will be having to get to know it at work and have downloaded SQL Server 2005 Express to tinker with at home.
What are the easiest methods to set up a relational database?
Are there any tools you can download to give SQL Server or the express version functionality similar to Access?
Can you get a tool to allow you to not only design tables in design view but then go on to create relationships and a database model?
Please excuse my ignorance if this is possible already, can anyone provide any links to getting started links?
There seems to be plenty out there about writing queries and stored procedures etc. but I haven't found as much about setting up a database from scratch.
Thanks in advance,
JJJ.
Calling Methods, Functions Threw Extended SP In A DLL
Jul 20, 2005Hi,I alredy tried to search this problem in last posts, but I couldn'tfind the answer.I try to access via Extended SP the method in a dll.I registered the dll as a ExSP, with a name of method. But aftercalling it in T-SQL, I became such a error message:[Microsoft][ODBC SQL Server Driver][SQL Server]Cannot find thefunction SendGeneralNotify_FromA in the library [LibraryName.dll].Reason: 127(error not found).In this dll I have only one class an it has events, properities andmethods.I will to call one of these methods.aha ... very importand. Please don't say that this dll should bewritten in c++ because it is made like that (no VB).Maybe somebody of you have an example how I should call it, to becamean access on this dll?Sorry for my not well english.With best regards, looking forward for reply-----------------------------MatikJoin Bytes!
View 3 Replies View RelatedRequest For SqlCeEngine.Exists(), .Delete() Methods
Nov 9, 2006Given a connection string, I can create a database using a SqlCeEngine object and call engine.CreateDatabase().
However, there doesn't seem to be a way to determine whether a database exists, given a connection string. I would need to interpret the connection string myself and extract the file name to use File.Exists() etc.
There should be SqlCeEngine methods to test whether a database exists, test whether it's accessible, and to delete it, given a connection string.
Cheers, Oli
Using DTS Methods To Create A Maintenance Plan Programtically
May 24, 2007I have been told to use the following Microsoft.SqlServer.Dts methods to create a maintenance plan programatically. Can I use C# to program a maintenance plan? If so, how could I use DTS methods to create a maintenance plan? Or, moreover, what would be a good first step to create this?
-Kyle
Task Upgrades, Update And CanUpdate Methods.. Why?
Sep 18, 2005I am writing a new version of a task with and additional property, and wish to support upgrades between the versions. I have implemented the CanUpdate and Update methods, and update the Xml for the new property. The problem I then have it LoadFromXml gets called which promptly fails since it is still using the old version of the Xml. Have I misunderstood the point of the Update mechanism? It would seem to me that I€™d better off ignoring Update and implementing the checks defaulting my new property within LoadXml. The new version of SaveToXml would sort out the upgrade when saved again.
View 3 Replies View RelatedScript Component - Overidable Methods/Functions.
Feb 23, 2006I am looking for a list of either generally used or a full list of overridable methods/functions for a script transformation?
I tried looking in the Visual Studio behind the script component but it only gives one method namely, Input0_ProcessInputRow, or if you make it asynchronous then it gives you another method CreateNewOutputRows.
I am basically looking for all the available overridable methods behind a script component in various situations.
Thanks,
Andy.