where should we use clustered index and non clustered index.i mean in day to day use which on e to choice and how to make decision.
View 8 Replies1) we have only one select query to select 5 column form the table(i.e. select col1,col2,col3,col4,col5). so in that case should we go for stored procedure Or we can directly write the select query in the .Cs file only ( means in Database layer). when we should go for the SQL server stored procedure and when we should go for in line query in Visual Studio itself.
2)how to decide when to use Clustered and when to use Non Clustered index?
Here is my code in SQL
[Code]....
Error i am facing is :
Msg 8668, Level 16, State 0, Line 2
Cannot create the clustered index 'RateViewIndex' on view 'NoteToPass.dbo.RateView' because the select list of the view contains an expression on result of aggregate function or grouping column. Consider removing expression on result of aggregate function or grouping column from select list.
I have a user defined function GetAddress which takes address id (int) as a parameter and returns a address which may contain some 200 to 300 characters...In the execution plan for that function it is displaying cluster index seek cost as 100%...I have clustered index for address id in the address table..is that costing the resources more...How to decrease the cost of the function or a query...!!
View 1 RepliesI've procedure that does the below task.1. Create a #table from an existing table2. Insert data into the temp table, this copies few duplicate records into my temp table3. After insert, I'm creating a cluster index for the temp table to enhance my search option later.While creating the Index, I get the below message.[CREATE UNIQUE INDEX terminated because a duplicate key was found for index ID 1. Most significant primary key is 'type ad, len 16'.
View 1 Replieswhat is difference in cluster index and noncluster index?
which is faster?how many cluster index and non cluster index per table?
what is composite primary key?on how many columns we can create composite key?
hao many maximum composite key's we can create on one table?
I'm a developer new to asp.net 3.5. My client asked if there were any implications of using Linq to SQL data sources with mirrored clustered servers with Failover clustering.
So my questions are can you use Linq to SQL with mirrored Clustered Servers?
If yes to the above, do you need to add or modify any code for mirrored Clustered Servers?
I have two control page in my aspx page. first one left side "tree view",second one right side " form design".Form design will change based on tree view selected index changed.i have 4 level child node(site, master , slave, space). I have seperate forms to each level of node.
cannot update tree node when update the forms. so i reload tree view.
now i need how to auto selected index change to tree node.
ex.
1 parent node
1.1 child node
1.2 child node
i have update "1.2 child node" rename to "1.3 child node"
and reload treeview so it will chage...
how set tree node.selected index = 1.3 child node....
I'm working on a project where we're using Windows Desktop Search (WDS) to index files on a web share and then later allow the user to search via a website for documents in the share.
These documents are transferred to the share via FTP, however it would seem that either the computer never goes idle to index or at some point the indexing stops. Is there a way from the command line or within the program itself to force this to happen without having to re-invent the wheel? Using .NET 3.5 and C#.
I am using SQL2008 and created a full-text index on 1 of my tables. Going through the wizard, I was offered (2) types of population schedules as follows:New Table Schedule: Define a population schedule for a table.New Catalog Schedule: Define a population schedule for a full-text catalog.I am familiar with a 'Catalog' schedule for population which I do nightly and was similar to configuration on SQL2000 for a full text index. However, what is the difference for a 'Table' schedule vs the 'Catalog' population schedule? I have the definitions above, but if someone with knowledge could offer a better in depth explanation in comparison, and if I should use both or not (I have just a Catalog population scheduled currently),
View 1 RepliesI single table in SQL Server having 50 columns col_1 to col_50 having type varchar(MAX)..The table is having nearly 2 crore data into it which is unstructured i.e. just put in by bulk copy. I have to perform search operation on this table. How to index the table so as to make the search fast? or any other way to make the search fast.
View 2 RepliesI'm stumbling on a basic LinqDataSource insertion problem. For some reason, I cannot insert records. The run-time returns the following error: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index The mark-up is as follows with the InsertParameters group. Adding or removing the group leads to the same error. (Note that updating works fine):
[Code]....
The events are void (just a convenient way to to troubleshoot). However, the run-time error occurs before the events are fired.
I have a situation where I have a file with each Account Record contains Monthly Expense Total Fields and Monthly Budget Fields for 2009, 2008 and 2007. I'm working with 72 fields (36 Expense and 36 Budget).
Need to create New Year Proceure that will shift data from 2008 to 2007, 2009 to 2008 and move Zeros to 2009 for both Expenses and Budgets.
I can do this using Parameters and Update SQL but I am under the impression that I must specificaly name each field in defining Parameters and SQL Update Command.
Since all fields are sequential withing a record, is there a way that I can use a For/Next loop to index my way through the fields moving data from one year to another?
When using DataReader I'm able to use reader.item(index) to access data record fields.
I have this sqldatasource:
<asp:sqldatasource id="SqlDataSourceX" runat="server" connectionstring="<%$ ConnectionStrings:MyConn%>" providername="System.Data.SqlClient"
selectcommand="SELECT ItemNum, MIN(DateAdded) as [DateAdded]
FROM Items WITH (NOLOCK)
WHERE [DateAdded] between @DateFrom AND @DateTo
[Code]....
When I call select in codebehind, after 30sec it throws timeout expired SqlException:
[Code]....
again , this select took up to 3 sec to be executed. In application I tried to use SqlConnection and SqlTableAdapter instead of SqlDataSource, with the same query, and again it took up to 3 sec.
If I choose tighter interval (e.g '2011-01-20 00:00:00' - '2011-01-21 00:00:00') , there is no timeout exception, so I know that sqldatasource select is executed correctly. So the conclusion is that sql server is not using index while executing query sent from sqldatasource, but is using index whenever else. I have also checked the index statistics on sql server and it is like that. In profiler i can see slight difference between this two cases. As for SqlDataSource, in events table, in first column "EventClass" after 30 sec, there is this: "RPC:Completed" and application throws timeout. If i use SqlConnection and SqlTableAdapter then at the same place there is this: "SQL:BatchStarting" and "SQL:BatchCompleted" and application does not throws timeout(the index has been used).
what is so special on SqlDataSource connection, that Sql Server performs differently compared to other types of connections?
gvOff.DataSource = o.ViewData(dCity.SelectedValue);
gvOff.DataBind();
gvOff.Columns[0].HeaderText = "ZZZZZZZZ";
gvOff.Columns[1].HeaderText = "YYYYYYYY";
gvOff.Columns[2].HeaderText = "XXXXXXXX";
Header count is correct.
AutoGenerateColumns: Flase/True ( i tried both)
If i remove the gvOff.Columns[index].HeaderText portions, GridView works fine, but when i put the gvOff.Columns[0].HeaderText, i get the exceptional error.
, i couldn't solve it. If you need further info, inform me.
EDITED:
Hold on! I commented the HeaderText portion and tested
int i = gvOffer.Columns.Count;
I found count is 0 eventhough the columns print out with DataBind()... Why?
NOTE: AutoColumn in this case is set to true. I guess i will have to edit the column
names from DataTable.
Here is my code in SQL
[Code]....
Error i am facing is :Msg 8668, Level 16, State 0, Line 2Cannot create the clustered index 'RateViewIndex' on view 'NoteToPass.dbo.RateView' because the select list of the view contains an expression on result of aggregate function or grouping column. Consider removing expression on result of aggregate function or grouping column from select list.
The code I am using is underneath this.
Server Error in '/' Application.
Format of the initialization string does not conform to specification starting at index 0.
Description:
An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentException: Format of the initialization string does not conform to specification starting at index 0.
Source Error:
[code]....
I am having with the a full text index I am developing for a product catalog. It does all work to a degree I am just seeing some strange things happening.
From the database side I have a Products table that is being indexed on both the PartNumber and Description columns because I would like the users to be able to search either or using the search function.
Problem 1:
whenever I use multiple words in the search I don't always get the results I am looking for, this happens most notably when I am attempting to say put in a full part number (which for in this case would look like "I 10-9.2")
Problem 2:
I am not 100% sure that this is the most efficient way of completing what I am attempting to accomplish here since I have 2 columns that I need to perform the search on
Here is an excerpt from the click even when the user clicks the search button on the page:
[Code]....
And here is the search functions called from the click event to firstly check if there are any results and the second to display the results in a custom gridview:
[Code]....
I created a simple search form which populates a gridview from sql server. I use 'contains' on a varchar(max) field which has a full text index. I find if I do a search for "Mexico Argentina", I get multiple results, which is good.One thing my sql server stored procedure is doing is inserting the word 'AND' between words. I do this because I want all words to be found. So if the user inputs "Mexico Argentina", I am converting that to "Mexico AND Argentina"But if I have even one 'noise word' in the search string, I get no results at all. For instance, there might be a sentence in my database table saying "I prefer Mexico to Argentina" but if I put that sentence in, I get no results at all. The database is seeing my converted string:I AND prefer AND Mexico AND to AND ArgentinaAnd finds nothing.I also have another form, which does a more advanced search that allows 'exact phrase'. If the user chooses 'exact phrase', then I don't insert AND anywhere. Instead, I surround his phrase with 4 apostrophes - 2 before the phrase, and 2 after.So now the database sees:' ' I prefer Mexico to Argentina ' ' (I've put a space between apostrophes here to make it clearer to view.Now I not only get no results, I get an error message.
View 1 Replies In the codes below, I got an error on the 2nd line. The "Connection" string is defined in Web.Config.
What does the Exception Details mean? How to solve the error?
Dim strConn
As
String = ConfigurationManager.ConnectionStrings("Connection").ConnectionString
Dim conn
As
New SqlConnection("strConn")
Dim queryString
As
String =
"SELECT CustomerID, CompanyName FROM dbo.Customers"
Dim adapter
As SqlDataAdapter =
New SqlDataAdapter(queryString, conn)
Dim customers
As DataSet =
New DataSet
adapter.Fill(customers, "Customers")
Exception Details: System.ArgumentException: Format of the initialization string does not conform to specification starting at index 0.
I am running VS2010 with the latest AJAX toolkit installed.I dont know when I use Ajax controls if I am supposed to drop a ScriptManager or a ToolkitScriptManager on my .aspx page.
View 1 RepliesWhat is the difference between hash table and index table? can any one explain me briefly. Also send me the hashing techniques.
View 2 RepliesHow to change cluster index to non cluster index, if it is primary key?
View 2 RepliesI have a feeling that Request.ServerVariables("AUTH_USER") and User.Identity.Name return the same string while using FormsAuthentication.So my question is as simple as that. Which one should i better use?
View 1 RepliesWhats the difference between Html.Partial and Html.RenderPartial?
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