SQL Server :: Computed Column In Sql
Dec 16, 2010I have a column that contain date (of type datetime), i also want to add another column that will contain 1 Or 0 depends if the value of date has passed the current date or not.
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SQL Server :: Filter By Computed Column
Aug 17, 2010After looking for a driver to open legacy dbf drivers to connect, the next level trouble a have is this one: first, i can retrieve the data but when trying to filter by a parameter (somesc columns) i get an error. The error says about the database can't determine. The error is a columm tha is formated ( 1234 ) about 8 space, fixed. The values in the query appears like that. I resolve this by Trimming Ltrim(ColumnName) and i get this (1234). Now in SqlExpress, how can i filter by the new Trimmed Expression? (This is a primary key that the DBF use)
Sample:
SELECT column1, column2, column3
TABLE FoxProDB
Now
SELECT Ltrim(column1) as NewExp, column2, column3
TABLE FoxProDB
Where NewExpre = @NewExpres -Error-
Computed Time Column In SQL Server
Nov 21, 2010Using vs2008 I have a SQL Server database attached to my web app. I want to use a computed time column in the database, along the lines of :
timenow is 1 column
hoursleft is another column
timeend would be another column.
I want timeend to = timenow + hoursleft. Is it possible to do that, and if so what would the formula be that I would enter into the computed column field, and, what datatype would the columns be, timenow and timeend I would expect to be time(7) and hoursleft an int. But is that correct?
SQL Server :: Set The Computed Column Into Inbuilt Database Into Vs2008?
Sep 16, 2010i have designed a database into the vs 2008 mobile database. my batabase has three column column1(int),column2(int),column3(int) and i want to set the value of val(column3)=val(column1)+val(column2); how and where to set the computed column value.
View 2 RepliesColumn In A GridView Computed On The Fly?
Jan 25, 2011I have the following GridView:
<asp:GridView ID="gv" AutoGenerateColumns="false" runat="server">
<Columns>
<asp:BoundField DataField="productName" HeaderText="Item" />
<asp:BoundField DataField="unitCost" HeaderText="Cost" DataFormatString="{0:c}" />
<asp:BoundField DataField="originalCount" ItemStyle-HorizontalAlign="Center" HeaderText="Old Count" />
<asp:TemplateField HeaderText="New Count" ItemStyle-HorizontalAlign="Center" >
<ItemTemplate>
<asp:TextBox ID="NewCount" Width="20" runat="server" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
And I want to add a final 'Total' column that calculates (originalCount - NewCount) * unitCost and updates it as the user enters a number in the NewCount text box. Can I do this just with .net, or do I need to use Java? If the latter, how do I tell which Gridview cell to update?
MVC :: Computed Column Vs Field In Partial Class?
Jun 28, 2010I have a table of people with columns holding bits of info about them. I also need a variety of computed columns such as FileAs (lastname + ", " + firstname) and CityStateZip (you get the idea). I am wondering where best to put these definitions. It's worthwhile to note that the user will want to search for things as seen on the page, not the little atoms in the table. For example, searching on ", e" finds everyone whose first name begins with E. Typing ", az" to get everyone who lives in Arizona.
I noticed that linq-to-sql queries only recognize the fields in the table definitions, not any that are added in the partial class associated with the dbml. Linq-to-sql does work against computed columns in the database; however, the column definitions--especially for international address formats--will become very complex and much better handled in code.
Create Computed Column With String In Formula
Oct 23, 2010I want to create a computed column in SQL SERVER and set the formula to this
([Category] + '.aspx?ID=' + [Post_ID])
Not working though......what am i missing? Category and Post_ID are current columns in the table
Forms Data Controls :: MS SQL 2005 And DataSet - Computed Column
Feb 16, 2010I have a datatable in MS SQL that has FirstName and LastName. In MS SQL I created a computed field called FullName that was ((rtrim([LastName])+', ')+rtrim([FirstName])) I created a DataSet and a Business Logic Layer. In my typed DataSet I saw FullName in the listing when I created it. I am able to use FullName in my webpage. I use it to populate a dropdownlist. However, now when I make changes to the Customer Table I am getting this error message (seen below)
Question: Should I have created the field FullName in my MS SQL Table or should I have left it alone and somehow just added a column to the DataSet and placed an expression in the FullName column? The column "FullName" cannot be modified because it is either a computed column or is the result of a UNION operator. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: The column "FullName" cannot be modified because it is either a computed column or is the result of a UNION operator. Source Error:
[Code]....
Source File: c:Users ottfarmsAppDataLocalTempTemporary ASP.NET Filesinternalauburnriverside98ea0e1f2a7f0720App_Code.lbdcba1v.2.cs Line: 1240 Stack Trace:
[Code]....
Forms Data Controls :: Sortable Aggregated (computed) Column In A Gridview?
Jan 11, 2010I have stumbled into a problem in which Im having a hard time solving. I have a linq data setup(based on a mssql) where a Purchase Order contains a number Equipments - each equipment has a price. I have a gridview that shows the summed price of the equipments that are included in a Purchase Order. This sum is currently being calculated on RowDataBound through a "listOfEq.Sum(Eq => Eq.PurchaseOrderPrice);" expression which works without any problems. My problem is that I want to be able to sort the gridview based on this summed value, which I cannot do with a normal sortexpression. My next thought was to create a function in my database to calculate the sum instead and then use this is my data basis for the summed column. I have created a function like this:
[Code]....
I want to create a sortable column based on this data. My thought is something like this:
[Code]....
Displaying the correct information is not a problem, however creating the sorting is. Im not sure what to put in the SortExpression. Anybody got an idea of what to do? Perhaps I am forced to use a computed column for this however I dont know to create this column when its based on another table. If this is the case, any idea about how to do create a computed column thats based on data from another table?
DataSource Controls :: Make Computed Column That Reads Its Latest Value And Increment It By 1
Feb 2, 2010I'm trying to define a computed column that will contain an auto-incremented number. In other words, I want it to work exactly like identity, but since I can have only one identity column per table, I wanted to make a computed column that reads its latest value and increment it by 1.
View 5 RepliesDataSource Controls :: Add Read Only Computed Column In Linq To Sql Designer (dbml)?
Feb 7, 2010How do add read-only computed column in LinqToSql designer (dbml)? My existing table structure:
Name: ID, Type: int, AutoGenerate: true, AutoSync: OnInsert, PrimaryKey:
true, ServerDataType: int not null identity, Source: IDName: Name, Type: string, ServerDataType: nvarchar(100) not null, Source:
NameName: Value, Type: byte[], ServerDataType: VarBinary(max), Source:
Value, UpdateCheck: Never
I want add the 4th colum name: Name: HasValue, Type: bool --> [Value] != null
DataSource Controls :: SQl Query - Generate Another Computed Column That Will Contail The Result Of GrandTotal/Total?
Jun 30, 2010How do i generate another computed column that will contail the result of GrandTotal/Total,
where GrandTotal is another value comes from computed column and the Total would be the sum of the Total within SchedularID.
And thats what i have done so far: [Code]....
SQL Server :: How To Copy One Column Data From A Table To Another Table Column With Rest Of The Column
Jan 16, 2011I want to copy data from a table[tblExcel][No.of columns:2] to another table[ev_event] which has 5 columns, 2 columns from the another table, 3 columns from user defined value
[code].....
SQL Server :: Update Column Into Identity Column By Removing Null Values?
Aug 10, 2010I have a table converted from Access and the identity keys were lost. Now I need to make the id column the identity column, but it already has a lot of null values, how do I auto generate integer values for the null rows? The row ids are incremented, so if there is a way to auto increment the ids
View 7 RepliesSQL Server :: Create View Or Function Failed Because No Column Name Was Specified For Column 2
Feb 17, 2011I am creating dynamic view using two tables.one is emp_Tbl and 2nd table emp_salary which is created dynamically .creating view it gives error 'Create View or Function failed because no column name was specified for column 2.
my code is: create view [dbo].[Emp_Salary_pay] as select dbo.Emp_Tbl.Emp_Status, (select column_name + ', ' from information_schema.columns where table_name = 'Emp_salary' ) FROM dbo.Emp_Tbl INNER JOIN dbo.Emp_Salary ON dbo.Emp_Tbl.Emp_Id = dbo.Emp_Salary.Pay_Emp_Id
SQL Server :: Invalid Column Name - Column Is Not Referenced Anywhere?
Aug 18, 2010I have a SQL Server 2005 database which is queried by a web service which is called by an aspx page.
I inherited a messy and inefficient project, and I was working on cleaning up a GridView by making it dynamic and by having consistent field names in the database when I started getting an error of - Sys.WebForms.PageRequestManagerServerErrorException: Invalid column name: 'ASSIGNED_TO'
Assigned_to does not exist in the database, in the web service, or in the website solutions in any place. It was the name of one of the fields in one table, which I changed to USERID so that either of two datasets would fit into a Gridview (all other fields were the same). I then replaced all references of ASSIGNED_TO with USERID, which is when the issues began. The first of the two queries below causes the exception to be thrown, but the second one does not. I have tested both with the WCF Client and with a query within SQL Server to verify that they do work, so the issue has to be on the website side.
sSQL = "select distinct B.BADGE_NBR, a.REGId,B.CYC_RTE, b.USERID, a.MTRREAD,A.NEWMTRNUM, a.COMPTIME, B.FA_TYPE, CASE WHEN A.MTRCOMMENTS <> 'Null' THEN '*' END as Comment,a.MTRLAT,a.MTRLONG,a.WOFAID, b.ADDRESS, a.MTRREADFLAG, b.ROUT_SEQ from MobileDataReturn a,WORKORDERDIPATCHFILL b Where a.RegId = b.REGID and a.WOFAID = b.FA_ID and B.CYC_RTE " & route & "' and b.USERID " & worker & "' and B.BADGE_NBR " & badge & "' and a.MTRREADFLAG " & readflag & "' and b.FA_TYPE " & fatype & "' Order by a.COMPTIME desc"
sSQL = "select distinct BADGE_NBR, REGId,CYC_RTE, USERID,MTRREAD,NEWMTRNUM, COMPTIME, FA_TYPE, CASE WHEN MTRCOMMENTS <> 'Null' THEN '*' END as Comment,MTRLAT,MTRLONG,WOFAID, ADDRESS, MTRREADFLAG from MobileDataReturnArchive Where CYC_RTE " & route & "'and USERID " & worker & "'and BADGE_NBR " & badge & "' and MTRREADFLAG " & readflag & "'and FA_TYPE " & fatype & "' Order by COMPTIME desc"
The Gridview:
[Code]....
SQL Server :: Stuck On Update Query / Identify That The First Letter In A Column In T1 Corresponds To One Letter In The Middle Of A String In A Column In T2 For Instance?
Nov 30, 2010Heres the situation: I need update a column from my table (T1) from two other columns in a different table (T2).
My constraints are:
That I have to match the first 4 letters of a column in T2 to one column in T1 I have to identify that the first letter in a column in T1 corresponds to one letter in the middle of a string in a column in T2 For instance:
My Table (T1):
Order Type Combined
Place
0090 0001 YYXX 1YY
0091 1001 YYXX YYY
0092 1002 XXXX 2XX
Table 2 (T2):
Order Value
00900001YY XX
00911001YY XX
00921002XX XX
The Combined column in T1 is what i'm trying to complete. The T1.Place column contains the first character that I want to check for.
If it's a "1" then I want to make sure the 5th letter in T2.Order is a "0" If its a "Y" then I want to look for a "1001" If its a "2" then I want to make sure the 8th letter is a "2" in T2.Order
If all that matches then I was the last two letters in T2.Order + T2.Value to be combined and put into the appropiate spot in T1.Combined
Here's what I have:
[Code]....
I know it's a little complex, but i'm really stuck on it and any help would be greatly appreciated.
SQL Server :: How To Set Column Value Get From Identity On Column
Mar 14, 2011I am facing a problem here. I have a column where the value is equivalent to my identity column's value. For an example, I have a column A store is "ABC0001" and the 0001 is came from a column called Column B which identity on. when a new record inserted and Column B is next identity number and Column A value is "ABC" and add number from Column B.
View 4 RepliesSQL Server :: Derived Column Transformation / Add Extra Logic To Derived Column Expression?
Dec 22, 2010I'm trying to figure out how add extra logic to this derived column expression:
LEN(TRIM(pup_date)) == 0 ? NULL(DT_DATE) : ((DT_DATE)(SUBSTRING(pup_date,5,2) + "-" + SUBSTRING(pup_date,7,2) + "-" + SUBSTRING(pup_date,1,4)))
If there's a 0 in the field the code inserts a null. Otherwise it inserts a date. How can I change this to insert a NULL if a question mark "?" appears in the column?
This is what I tied using the OR operator but it's not working:
LEN(TRIM(pup_date)) == 0 || LEN(TRIM(pup_date)) == "?" ? NULL(DT_DATE) : ((DT_DATE)(SUBSTRING(pup_date,5,2) + "-" + SUBSTRING(pup_date,7,2) + "-" + SUBSTRING(pup_date,1,4)))
SQL Server ::to Add New Column Add Between Two Column In Sql
Dec 5, 2010I need add one New column between Two column .. how do that ..
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View 6 RepliesSQL Server :: Sql Server Db Stops Working - Column "kryptotext" Doesn't Belong To Table Tabellen
Mar 17, 2011I run a web site with VB.Net and Sql Server, at a web host (so I use one instance of their Sql Server db). I now get this nasty message when trying to access the web site: Column 'kryptotext' does not belong to table tabellen. I have seen this before (but with other columns mentioned), and when I spoke to the tech guys they said that the server gives up after five (or so) invalid requests. The old problems I had were due to the fact that I had used Application variables - at least the problems appeared when I added the variable and diappeared when I deleted them.
This time, I have done very little. I ran a new check when some items of a gridview were databound, and if a condition was ok, then a mail should be sent and an update take place in the db. For now, this will not be true, so the new code doesn't fire, and I have now reverted to the old code anyway. I got htis message this morning, and then it has worked the entire day without me changing the code at all, and now it stopped working again, so to me it seems as if it's either not my code's fault, or I somehow flood the db server with requests (but the web site is new so there are really no users yet). One more thing I have added: I imported the Net.Mail namespace to the baseclass I'm using for the aspx pages, but I can't believe that has anything to do with this.
I asked the tech guys again, and the server has been working the whole day. Here's the web site: [URL] I am able to connect to the admin part of the web site, so it's just the public web site itself that doesn't run. What should I do? Edit: Now, 30 minutes later, it works again. I haven't done anything, in fact I had dinner now.
SQL Server :: Add Two Sum Column To Show In One?
Oct 13, 2010add two sum column to show in one?
select SUM(a.SqFt + b.SqftDespatch)as Qt from dbo.Batch_reg a
SQL Server :: How To Find The Last Column Value And Last Row Value
Jan 20, 2011Create a user Define value to find the last column and last row value make a UDF in sql server
Table1
ID Name
Address
1 A
Delhi
2 B
Noida
3 C
GZB
4 D
Bihar
i say this way
Declare @v varchar(50)
Select @v = address
from Table
print @v
then he say me if rotate the colums like this it will never work
Table1
ID Address Name
1 Delhi
A
2 Noida
B
3 GZB
C
4 Bihar
D
then how would you do this then i say that i don't want the job in this company