DataSource Controls :: Include An Alias In Select Query?
Jun 22, 2010
I have an application that I am developing using ASP.Net with visual basic code. I have a table called "Customers" that contains 3 fields. The name of each field is "Name", "LocationA", and "LocationB". I want to code a select query that list two columns. The first column should contain the field "Name". I want the second column to contain the value in the field "LocationB" if "LocationB" is not null, else I want the second column to contain the value in the field "LocationA".
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Similar Messages:
Feb 24, 2011
here is a sql select statement,
Select
ColA = ID
,ColB = Name
,ColC = invtotamt + (SELECT SUM(TableA.camount) FROM TableA WHERE TableA.csucceed = 1 AND TableA.cID = InventoryTotal.invID GROUP BY TableA.cID)
,ColD = ((SELECT SUM(TableA.camount) FROM TableA WHERE TableA.csucceed = 1 AND TableA.cID = InventoryTotal.invID GROUP BY TableA.cID)
,ColE = (SELECT SUM(TableB.camount) FROM TableB WHERE TableB.csucceed = 1 AND TableB.cID = InventoryTotal.invID GROUP BY TableB.cID)
FROM TABLE
it look complicated, and long statement, actually it's easy, it is like: (it's a sample, not a really one)
Select
ColA = ID
,ColB = Name
,ColC = ColD + ColE
,ColD = ColE + ColC
,ColE = ColC + ColD/100
FROM TABLE
it looks much easier with ALIAS. But, it seems i cannot directly use alias in select stetement like that.
if i cannot use alise, i have to copy paste lots of same column definition. how can i use the alias in select statement?? this bothers me a lots of times!
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Sep 4, 2010
My following sql query giving me the following error, What does it mean. Am i defining the alias fir column in wring way. Please help me out with this. My error is this and i am putting query just below the error. Error in SELECT clause: expression near 'Year'. Missing FROM clause. Unable to parse query text.
SELECT [tbl_students].passing_year as Passing Year,[tbl_branch].branch_name as Branch_Name FROM [tbl_students], [tbl_course], [tbl_branch] WHERE [tbl_students].course_id=@courseId
AND [tbl_students].branch_id IN(64)
AND [tbl_students].course_id=[tbl_course].course_id AND [tbl_students].branch_id=[tbl_branch].branch_id
AND (@firstYrPercent is null OR [tbl_students].first_year_percent>=@firstYrPercent)
AND (@secondYrpercent is null OR [tbl_students].second_year_percent>=@secondYrPercent)
AND (@thirdYrPercent is null OR[tbl_students].third_year_percent>=@thirdYrPercent)
AND (@finalYearpercent is null OR [tbl_students].final_year_percent>=@finalYearpercent)
AND (@currentDegeePercentage is null OR [tbl_students].current_degree_percent>=@currentDegeePercentage)
AND (@passoutYear is null OR [tbl_students].passing_year>=@passoutYear)
AND (@currentBacklog is null OR [tbl_students].current_backlog=@currentBacklog)
AND (@sex is null OR [tbl_students].gender=@sex)
AND (@eGap is null OR [tbl_students].gapin_education<=@eGap)
AND (@highSchoolPercentge is null OR [tbl_students].highschool_percentage>=@highSchoolPercentge)
AND (@higherSchoolPercentage is null OR [tbl_students].ssc_percentage>=@higherSchoolPercentage)
AND (@grauationPercentage is null OR [tbl_students].graduation_percentage>=@grauationPercentage)
AND (@diplomaPercentage is null OR [tbl_students].diploma_percentage>=@diplomaPercentage)
AND (@noOfAtkt is null OR [tbl_students].number_of_ATKT<=@noOfAtkt)
AND (@validDate is null OR [tbl_students].DOB>=@validDate)
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Feb 18, 2010
SQL Query with IF and Select
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Apr 13, 2010
in DataBase Attendancedate is save in this format 4/5/2010 4:16:28 PM ..i want to query like this select * from EmployeeAttendance where Attendancedate='4/5/2010' but this giv error
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Mar 15, 2010
I need to write a select query where it will be doing "like" on one column with multiple strings.
Eg : Select * from tblCity where city like '%ABC%' and city like '%XYZ%'
I have set of strings.
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Feb 15, 2010
I am having difficulty selecting data from 2 tables that do no share a primary key value. For instance, I have an actual table, a forecast table, and a GLText table. I may have an actual value but not a forecast value but I need them to appear in the same Query (like the query results shown below). I can get all values to appear in each table but have been unsuccessful in getting all values from both tables.
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Mar 19, 2010
i have used one query like this
Select skillReq from tblPostJobs where SkillReq like '%Silverlight 2.0%'
it is working fine. But while giving
Select skillReq from tblPostJobs where SkillReq like '%Silverlight 2.0,C#%'
It is not filtering data from database. It is only checking starting and ending Character.In my database some keyskill are like that
Asp.net 3.5,4.0,C#,Sql server 2008,Silverlight 2.0,3.0.
My requirement is to check each word in "SkillReq" text.
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Feb 17, 2010
I have dropdownlist of dates and depending on the date that the user selects from list, I would like to filter records that fall between the startyear and finishyear columns in the datasource. (My the problem is that I do not know how to declare the Startyear and Endyear from the query in the code as they appear underlined - probably the BETWEEN syntax is wrong too).
yYear = DropDownList1.Text
Using connection As New SqlConnection("Data Source=CHRIS-PCSQLEXPRESS;Initial Catalog=TorGHL;Integrated Security=True")
Dim cmd As String
cmd = "SELECT BarDetails.*, MenuHeadingId AS Expr1 FROM BarDetails WHERE (MenuHeadingId = 2)" & "WHERE " & yYear & " BETWEEN " & "(" &
StartYear & ")" & " AND " & "(" & EndYear & ")"
connection.Open()
Dim dapubcb As New SqlDataAdapterDim sqlcomm
As
New SqlCommand(cmd, connection)
dapubcb.SelectCommand = sqlcomm
Dim dspubcb As New DataSet("BarDetails")
dapubcb.Fill(dspubcb, "BarDetails")
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Jan 8, 2010
I want to create an application where I need to enter date to the ms access database.
I am a bit confused regarding how to make the user to enter date. The options avaliable are:
a. Shall I use a textBox?
b. Shall I go for 3 drop down lists?
or something else.
Some more questions:
1. what date format shall i use? (dd-mm-yyyy, dd-mmm-yyyy, etc, etc or anything else)
2. What datatype shall i use to store the date in the database?
3. What SQL query shall i use to retrieve the data between 2 dates?
let me know if there are multiple options available regarding this application.
I want to make this application as easy as possible for the user.
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Jun 2, 2010
How to write select query to get counts in row values
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Jul 9, 2010
i have the following select staement which deosnt work, can anyone advise me whats wrong with it:
string _name = ddl_Name.SelectedValue.ToString();
string cmd =
"SELECT ID, Telephone FROM User_List WHERE Name = '' + _name;
i keep getting an invalid column name error? and i know the syntax next to _name isnt correct. how are the single quotes meant to go?
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Jul 5, 2010
I have a table called 'Customer' that contains customer information. One of the fields is named "CustomerType". Each record in the 'Customer' table will contain the value of either "C", "I", or "O".
I have a form that contains a "check box list" named "Type". There are 3 values in the "check box list". The values are "C", "I", and "O". The user can select one or more of these values. I have a button on the form named "btnRunQuery.
When the user clicks on the button "btnRunQuery" I want to exectute a query that selects the records contained in the "Customer" table where the value in the field "CustomerType" equal the values the user selected in the "check box list". Example: If the user selected "C" and "O", then I want the select query to select all records that contain either "C" or "O" in the field "CustomerType".
I assume that what I need to do is to capture the values that the user selected in the "check box list" and put them in a variable. Then I need to format the "Where" statement in the query and add a "Parameters.AddWithValue" command.
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Jan 19, 2010
I have a basic CMS which I'm adding to a site to display some downloads organised into groups. I have two tables, one for the groups and one for the downloads. I'm using a repeated to display the groups with another repeater inside to display the children. This works perfectly.
However some of my download groups may not have any downloads related to them and I'd like to handle this by filter the groups so that only those with a relate download record(s) are shown.
I'm trying to do this with the query which populates the top repeater based on some ideas I read but I must be going wrong with the syntax.
Here is what I'm using to try and only select downloads groups which have downloads linked to them by the download group ID.
[Code]....
Can anyone offer any thoughts on how I should construct the query to perform this?
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Jan 26, 2010
This query does not return any record
[code]....
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Feb 17, 2010
I'm implementing a BLL layer and have a few questions. First, in my DAL, there is a contacts table, the select method is a sql query against a sql server 2000 database. The preview data returns everyting as expected. The query is
[Code]....
The BLL method is built like so
[Code]....
When using the BLL method to a gridview, the results of the subquery are not displayed. There are also other methods, each having a different where clause for ContactRole_ID and each is having the same issue of not displaying the subquery reult in the gridview. No error, but no data is displayed for the subquery either. Here is the templatefield of the gridview
[Code]....
Another item that is causing an error is in trying to update a record. Here is the DAL update method
[Code]....
And the BLL update method
[Code]....
The error says i have extra parameters, but have no clue where the extra parameters are being picked up. The error isObjectDataSource 'odsContacts' could not find a non-generic method 'UpdateContact' that has parameters: _ContactID, _Active, _ContactName, _Office, _VirtualOffice, _Pager, _Fax, _Home, _Cellular, _Email, _ContactRole_ID, Active, ContactRole_ID, ContactName, Office, Email, VirtualOffice, Pager, FAX, Home, Cellular.And the objectdatasource
[Code]....
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Jan 21, 2011
Trying to use a dropdownlist to query a database so that it will return all values except 1 (or more in future versions).
For example, assume you had a simple table name "MYFRIENDS" which has two fields named "GROUP" and "NAME" with the following records:
Group
Name
A
John
B
Jane
C
Tony
D
Sue
What I want to do is create a DropDownList that has only 2 list items related to the "GROUP" field. The first list item should return records from the database related to Group A only. Then, the second list item should return all other records EXCLUDING those belonging to Group A.
The drop down list should look something like this (I've put a question mark where I don't know what to do):
[Code]....
After the selection is chosen in the above drop down list, it should query the database and return the desired result. I'm using an AccessDataSource with select parameters. Here's a sample of what that looks like:
[Code]....
Things I've tried that didn't work:
I tried using "Not A" as the the 2nd list item's value. I was thinking p1 would be replaced with the value "Not A" and the query would read "WHERE GROUP LIKE Not A". But, the query syntax "Like Not" is technically wrong. I tried changing the Where Clause to "WHERE GROUP p1" and then replaced the list item's value to "LIKE A" and the second to "NOT LIKE A". Again, I was thinking p1 would be replaced to read "WHERE GROUP LIKE A" and "WHERE GROUP NOT LIKE A". I also tried changing the "SelectCommand" itself so that after the dropdownlist changed, it would first change the selectcommand first and then run the query.
Why the first 2 items didn't work became somewhat obvious to me after thinking about it for a little while. However, I would think the 3rd one would/should work... as long as you have the sequence of events correct which up to this point I haven't been able to figure out.
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Feb 23, 2010
I want to select all the customers from "customers" table from a specific country. I write the following query but it is not working. why?
select *
From customers
where country = @country;[code]....
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Jan 6, 2010
I have a parent repeater that lists the sections of the website. this repeater binds to display a table that contain another repeater of the website pages .. or may display a table that contains another two repeaters of the projects categories and sub-categories.Until now everything is going fine.
The problem comes when I try to include a query of the section ID to the link of the project categories (DataView of the projects repeaters does not contain SectionID)my question is : is there any way to call the SectionID of the first repeater in my projects categories and sub-categories repeaters?Here is my code:
[Code]....
the code behind is as follow:
[Code]....
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Mar 10, 2010
difference between these two codes would be?
[Code]....
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Nov 5, 2010
I have a SQL Data Source that displays records after going through the Query Builder and select "Test Query" yet when I save it, go back to the design mode and select View in Browser I get nothing but a blank screen.
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Feb 28, 2011
I have a formview with an entityDataSource. I need to include columns from related fields. I have seen many demos, with AdventureWorksDB, that imply that you can do this by using INCLUDE in the entitydatasource declaration. I have tried made many attempts and it just does not seem to work as demonstrated. I have attached the errors below and the EDS. I have also attached a JPEG of the model I am working in. Three errors demonstrating 3 different attempts to include a related table:
DataBinding: 'TmModel.tbICObjectBase' does not contain a property with the name 'Group'
the code declaration for error 1:
<asp:Label ID="Label1" runat="server" Text='<%# Bind("Group") %>' />
DataBinding: 'TmModel.tbICObjectBase' does not contain a property with the name 'tbICTagBase'.
the code declaration for error 2:
<asp:Label ID="Label1" runat="server" Text='<%# Bind("tbICTagBase.Group") %>' />
DataBinding: 'System.Data.Objects.DataClasses.EntityCollection`1[[TmModel.tbICTagBase, TmModel, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]]' does not contain a property with the name 'Group'.
the code declaration for error 3:
<asp:Label ID="tbICTagBasesLabel" runat="server" Text='<%# Bind("tbICTagBases.Group") %>' />
EntityDataSource
<asp:EntityDataSource ID="entDSObjectBase" runat="server" AutoGenerateWhereClause="True"
ConnectionString="name=IntouchDBContainer" Include="tbICTagBases"
DefaultContainerName="IntouchDBContainer" EnableFlattening="False"
EntitySetName="tbICObjectBases" EnableDelete="True" EnableInsert="True"
EnableUpdate="True" EntityTypeFilter="tbICObjectBase">
<WhereParameters>
<asp:SessionParameter SessionField="Tag" Name="RecID" Type="Int64" />
</WhereParameters>
</asp:EntityDataSource>
You can see the model at [URL] Or [URL]
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Dec 22, 2010
The drop down list is used to determine what search criteria will be used to find an invoice. I tried to set the Select method in the switch statement. I don't understand how to set the Select Method and the select parameters programmatically though . I tried a few different ways but can't make the compiler happy. My ODS is in scope in the code behind. I'm not able to access it's properties though. The BAL resides in a separate project that is a ClassLibrary. I also have a using statement for the ClassLibrary project in the code behind.
give me an example of how to do this?
Mark up:
[Code]....
[Code]....
[Code]....
[Code]....
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May 9, 2010
protected void Button19_Click(object sender, EventArgs e)
{
SqlDataSource conn = new SqlDataSource();
conn.ConnectionString = ConfigurationManager.ConnectionStrings["Database2ConnectionString1"].ToString();
conn.SelectCommandType = SqlDataSourceCommandType.Text;
conn.SelectCommand = "SELECT FROM table1 (a, b)VALUES(@a,@b)";
conn.SelectParameters.Add("a",TextBox1.Text);
conn.SelectParameters.Add("b", TextBox2.Text);
int rowsAffected = 0;
try
{
rowsAffected = conn.Selectt();
}
catch (Exception)
{
Label1.Text = "Error";
}
finally {
conn = null;
}
if (rowsAffected != 0)
{
Label1.Text = "Data saved";
}
}
well it returns error no overloading method for select (P.S. same code work fine for insert)
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Apr 14, 2010
I will declarate a attribute, but it gives me an error
This query works fine and returns 1 record from type int:
SELECT TOP 1 DataObjectVersionID
FROM tblDataObjectVersionPropertyValueText
WHERE PropValue like CAST('00010281' AS ntext)
ORDER BY DataObjectVersionID DESC
And when I will declarate a attribute/parameter it gives me an error:
DECLARE @dataObjectVersionId INT
SET @dataObjectVersionId = SELECT TOP 1 DataObjectVersionID
FROM tblDataObjectVersionPropertyValueText
WHERE PropValue like CAST('00010281' AS ntext)
ORDER BY DataObjectVersionID DESC
Error message:
Msg 156, Level 15, State 1, Line 2
Incorrect syntax near the keyword 'SELECT'.
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