On one of our tables, a default clustered index is defined on the primary key by sql server 2005. The table also contains forign key columns and has got over 2 million rows. There are very frequent INSERT, UPDATE and DELETE functions on this table. Recently some of the SELECT queries which primary operate on the forign keys have become very slow (resulting in application timeout). To fix the problem, I defined an index on one of the primary keys which gave me very quick results. I don't know much about indexes.
1. Since I defined a new index (on the forign key) in addition to the existing default index, what kind of index (clustered or non-clustered) have I defined?
2. What performance impact does it have on the rest of the system? Is it going to break something else?
3. I read about fill factor. What is this and how does it effect the system?
4. Is the new index physically going to make any changes?
5. In case I delete this index later on, will the database return to the existing state or it will be a different state from now?
I am using PL/SQL Developer. I have a Table "C_PARTY_HXRF". Now I want see the Column Names and the corresponding Data types of this Table. Which Command should I Use?
I have an application which has rows of data in a relation database the table needs a status which will always be either Not Submitted, Awaiting Approval, Approved, Rejected Now since these will never change I was trying to decide the best way to implement them I can either think of a Status enum with the values and an int assigned where the int is placed into the status column on the table row.
Or a status table that linked to the table and the user select one of these as the current status.
I can't decide which is the better option as I currently have a enum in place with these values for the approval pages to populate the dropdown etc and setup the sql (as it currently using to Approved and submitted for approval but this is dirty for various reasons and needs changed).
Wondering what your thought on this were and whether I should go for one or the other.
If it makes any difference I am using Entity framework.
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.
I'm creating a table in an asp.net code behind dynamically, and I want to have a footer row that only has 2 cells. The first should span all the columns in the table-1. Is there some way other then keeping track of the # of columns in the table manually for me to set the colspan to be # of all the columns in the table-1? Preferably a HTML or CSS solution?
I've the following code which successfully makes an average for all the columns from a table. What I need to do though is ignore certain columns in this equation.
Dim totalNumber as Double = 0 Dim count as Integer = 0 For x = 0 To xyz123.Tables(0).Columns.Count - 1 Dim current as Double = 0 If Double.TryParse(xyz123.Tables(0).Rows(0)(x).ToString(), current) AndAlso current <> 0 Then count += 1 totalNumber += current End If Next Dim averageRating as Double = totalNumber / count
I am looping through a JSON table using jquerys foreach operator. I am having to reference the the columns by name e.g:
$.each(items, function (index, item) { if (item.CustomerFname == "Bob") { alert(item.CustomerFname + " " item.CustomerSname) }
Whereas I would like to be able to say something like:
[code]....
Ultimately I'm trying to make this function dynamic with respects to the json list I pass in which will of course mean that the column names will change. However I would like to perform the same operations on the columns...
I'm writing a reporting tool that, as a starting point, needs to create a DB table from a csv file. This csv file will have been created from exporting data from our old system (with the new system being the reporting tool) and can have up to 300 columns of data. I've been trying as follows:
[Code]....
but am finding that only the first 255 columns get put in. I am assumg that the Jet driver is the one that is limiting the columns, or is there a registry setting somewhere that'll solve it quickly?
Is there another approach that'll work? I've though of the following, but as it'll take a while to recode and test each time I thought I'd ask the experts first!!
BULK INSERT: would mean that I'd need to pre-create the table first, but if the issue is with the Jet driver I'd surely get the same problem? Use a datatable: it seems pretty fiddly and probably a lot slower, but I guess I could read into a dataset and then bind that to a table to insert? Again the table would need to exist and the driver that I use to read from the csv would be the issue? Do it one row at a time in a loop in the code: assuming I can read the file as text, I could then split the data in code into an array and create a insert statement (again to an existing table) for each row. With what could be 1000s of rows I can't imagine that this is the fastest solution!
i done one web application in this application i need to transfer the data from one table to another automatically when the time is 10.00PM. i need to write this function sepearte time function not in page load function.the user select any of page the data should be transfer from one to another without page load only using time control function..
i have a table that has some columns and rows i want this table to have borders that are visible inside it i want every column an row to be closed in borders how can i do that?
I am building a little app to upload a picture and various downloads for different file types for the photos, but I also need be able to select the catergory they will go into. So I have two tables one that stores the catergory names and one that holds the paths to the photos and downloads the tables are related through the catergoryID.
What I need is those catergories to show up in the photo's and downloads table so that when I go to upload the photos I will be able to select the categories.
I have also built the DataSet and the Business Logic.
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:
I am using PL/SQL Developer.I have a below query select distinct
DATA_SRC_CD as Source, FILE_NM as File_Name, PATH as File_Path from PKG_SFI_REPORTS.DATALOAD2SUMMARYETLRPRT("FACTS","CM_DDL_PARTY_2011_01_12_08_24_09.DAT") In the above Query PKG_SFI_REPORTS => Package, DATALOAD2SUMMARYETLRPRT=> Procedure. "FACTS" and "CM_DDL_PARTY_2011_01_12_08_24_09.DAT" => Parameters Now I need to know the Data Types of "DATA_SRC_CD" and "FILE_NM" and "PATH". How can I Know?
i did the mysql data export into excel in row wise when button click... here i want the same data export into columns wise..i used datatable and dataset for this function.. here i need all data should export in column..here i used some code..
I want to filter grid view, drop down list should select the column and text box will filter the column. like ID NAME Phone Designation fields in gridview.i will select Designation in dropdown and type programmer in text box .so it should filter programmers from the gridview...
I have a page within our site that allows admin users the ability to upload configuration settings into the system instead of submitting 1 at a time.
While testing yesterday, i found that one of the upload pages allowed me to upload a excel file that had alot more columns than expected and when i checked the database, the first few columns that were expected took the values from the file, and everything else was ignored, but wanted to see if there is any way to check the number of columns in the file to make sure it matches the upload logic before accepting it.
True) to update database row that returns null values from date and numeric columns,Whenever i try to update same row with null (or empty) values on both date and numeric columns, it results in sending '01-Jan-0001' for date column and 0 for numeric column. I want the user to have the options of null or corresponding values for the update.
I have an Excel file called Products.xls .I have Columns A and B, with the titles NAME and QUANTITY.The name of the sheet is SHEET1.The file has about 40 lines.How do i show these data on a Gridview or Listview ?
