anyone know that can we used select statement to called queries table in database or not?usually people used select statement to called common table in database.
View 4 Replies i have 3 tables which are Table A(a Id,b Id),
Table B(b Id,a Id,c Id),
Table C(c Id,b Id)
How can i select Table C column by using table A?
I have two sections of users data on my site, customers and employees, each one has a UserID that is FK to the UserID from aspnet_Users table.
I have a table that stores User messages
Looks Like This:
[URL]
It Has a FromUserID and ToUserID
Because Employees are Identified through EmployeeID and Customers are identified through CustomerID, I needed to use UserID's so Employees can leave messages for employees and Customers and Customers can leave messages to employees and other Customers 1-2 and 2-1
My Quandry is this, How Do I retrieve the information if the UserID might be a Customer or Might be an Employee, when the UserID could be from one of two tables
ie
How Would I Write?
SELECT wms.FromUserID, ed.FirstName, ed.LastName FROM ed INNER JOIN wms ON wms.FromUserID = ed.UserID
OR SELECT wms.FromUserID, cd.FirstName, cd.LastName FROM cd INNER JOIN wms ON wms.FromUserID = cd.UserID
How Do I Check to See? Do I Use IF EXISTS?
I need to execute a stored procedure and show the value it returns as a usertype column in a selection list. Eventually this select statment will be converted into a stored procedure, so basically the stored procedure will be called in another stored procedure. I can't quite get the syntax correct. I am showing a simplified version of a very long query so it's easy to understand. It gives me the 'Incorrect syntax near the keyword 'CREATE' error. The capitalized the code produces the error:
SELECT createdate,
createdby,
usercity,
userstate,
[Code]....
Can I not have a create table statement inside a select statement? I can't move it out of the select statement since
I need to pass the city and state as parameters which are inside the select statement. is there any better way to do this functionality?
I'm using asp.net and c# language.
How can i display a GridView using select statement of two column in one table?
This is my coding:
if (sdr.Read())
{
if(namaPembekal.Equals(sdr["namaPembekal"]) && tarikhRo.Equals(sdr["tarikhRo"]))
{
Session.Add("namaPembekal",sdr["namaPembekal"]);
Session.Add("tarikhRo", sdr["tarikhRo"]);
if((((String)(Session["namaPembekal"])).Equals("namaPembekal")) && ((String
(Session["tarikhRo"])).Equals("tarikhRo"))
GridView1.DataSourceID = SqlDataSource2.ID;
GridView1.DataSourceID = txtJourneyDate.Text;
}
I need to display the table name in the select statement. how?
exact question:
we have common columns in two tables. we are displaying the records by using
select column_name from table_name_1 union select column_name from table_name_2
But the requirement is, we need to display the source table_name along with the data. consider a,c are present in table_1 and b,d are present in table_2. we need the output in the following way
eg: column_name table_name a table_1 b table_2 c table_1 d table_2
I have 2 tables ( having one to many relation )
SELECT CAT.CAT_TYPE, Agencies.Name
FROM CAT INNER JOIN
Agencies ON CAT.CAT_ID = Agencies.CAT_ID
CAT_A Val1
CAT_A Val2
CAT_A Val3
I need the select statement to list only the last records of the Table Agencies , see the red color at the top , if this can be only acheived using SP
While executing select statement for a table then iam getting arithmetic overflow error.I found that retrieviing the data for a particular column showed that error ,sum() for that column is showing error.Is there any way i can rectify this problem.
View 10 RepliesIn general terms, which way will require more server processing power and which way will return faster queries... if there is even a difference. The client's database is still on the dev MS SQL server but is essentially but the client has decided they want to collect two more fields of information. Both fields are going to be collection text data and probably varchar(300) will be sufficient for the column data types. Would it ultimately be more efficient to
Add two additional columns in the main table so the data is entered directly into each record, or Add an additional table (or two) with a foriegn key to the primary table that holds the info for each new field The SELECT statement for the main table could be modified to either add the new columns (a.NewColumn1 and a.NewColumn2) or it could contain nested SELECT statements that pull in the data from the other tables. Custom daisy-chained Insert or Update statements would be no problem and a cascade Delete relationship would take care of any deletions. I'm just trying to figure out which would be better from a performance standpoint?
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Test1._Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >[code].....
I had created the database called train. A train database has a two tables
Suppose we want to select the data from the database then we write the query for that. Example:
SqlConnection con=new SqlConnection(Connetion name) string selectPkId = @"SELECT PK_ID FROM TABLE" SqlCommand cmd=new SqlCommand(selectPkId ,con);
So,my question is that why we basically use @ before the sql query.If I don't use @ before that then it again work fine (does not give any error), then what is need of using "@"?
My students are working on an ASP.net VB application for a Web Programming competition and we are having problems with a page where we want an URL string to return all values from our database. Here is the page: [URL] If you use the jobs by category menu on the left side, if you select a job category (ie retail) it will pull up all the jobs from that category. By using a query in the URL like this: [URL] What we need is an option that would pull up all of the records regardless of category. So we made a menu option that passes the value "all". Like this: [URL] We use this information for the dataset we created (we're using Dreamweaver, ASP.net VB and and Access Dbase). We made a dataset SQL as follows:
SELECT *
FROM jobs, businesses
WHERE jobs.contactlogin=businesses.contactlogin and jobcategory = ?
ORDER BY jobs.dateposted DESC
This works fine if a value is passed. For example if "retail" is picked from the menu it passes the value just fine and returns all jobs that have "retail" as the job category in the database. My problem is, how do I modify the above Select statement to show all jobs in the database if the value "all" is passed for the jobcategory. My first thought was to create an If statement that says something to the effect of:
If jobcategory = all THEN
SELECT *
FROM jobs, businesses
WHERE jobs.contactlogin=businesses.contactlogin
ORDER BY jobs.dateposted DESC
ELSE
SELECT *
FROM jobs, businesses
WHERE jobs.contactlogin=businesses.contactlogin and jobcategory = ?
ORDER BY jobs.dateposted DESC
END IF
But I haven't been able to figure out the correct syntax. I also tried making this work by using a query in MS Access:
SELECT *
FROM jobs, businesses
WHERE jobs.contactlogin=businesses.contactlogin
AND (jobcategory = @jobcategory or @jobcategory = 'all')
ORDER BY jobs.dateposted DESC;
(which does work within MS Access) and calling the query in the Dreamweaver dataset but apparently MS Access can't do that.This seems like it should be easy but so far this problem is kicking my butt.
I am moving to the world of ASP.NET from an Access VBA / VB6 background and having read a few books on the subject I am still confused about communicating with SQL server in VB with ASP.NET.
As a very quick explination I am used to communicating with the server by passing strings containing the data I want to write (or read) such as:
[Code]....
I do not seem to be able to work out from ALAX, Dynamic Data, Bound Controls, DataViews, connecting to services with SOAP, DataSources and all of the other methods of database communication in ASP.NET which is the right system to do the simple reads and writes in SQL that I want to do.
At present I have a page with all of the controls on it required to collect a block of data I want to insert, it is all now fully validated but although I can build the SQL INSERT command in a string I cannot figure out how to fire it over to the local SQL Express server. Am I even doing this correctly or do I need to look at other controls?
i'm trying to to create a simple string array with data retrieved from a select statement(SELECT firstname FROM customers , for ex.)
View 6 RepliesHow would i make a select statement select the row with the nearest values? e.g.: I have 3 labels, labels1 2 and 3, with values of 1.2, 2 and 5.8 In my table i have 4 columns, first is the data im after, and the next 3 relate to the three labels. I want to select one row, where the values of labels match it the closest.......
View 8 RepliesI need to select a field value from a database table. If the value read is '1' then I need a 'Y' to display as output in the select statement. I haven't figured out how to do this yet and queries I tried that did not work.
select IsIata from Table_1 CASE WHEN (IsIata = '1') THEN 'Y'
select IsIata CASE WHEN (IsIata = '1') THEN 'Y' from Table_1
i have two tables named
1.LookupPageInfo and (LookupPageInfoId,pathmessageID,pagemessageID)
2.Messages (MessageId,MessageText,ChannelID)
Now i need to write a query something like this........in the query i need to pass the pathmessageid and needs to get messagetext from Messages Table,i am not sure how i need to write the below query..can someone guide me how can i write a query......as below..
select LookupPageInfoId,
PathMessageID,
pagemessageID,
(select messagetext from Messages where MessageID=PathmessageId) as TEXT from LookupPageInfo
eg: thiss is the ordinary query
[Code]....
how in linq??
how can i select data into temp table from another database in sql server 2000
View 2 RepliesI want to find the sum of each tables fileld. how can do this. i tried the following.but could nt get the correct sum. "SELECT SUM(gb) FROM data20 union all SELECT SUM(gb) FROM data10 union all SELECT SUM(gb) FROM data5 union all SELECT SUM(gb) FROM data6"
View 7 RepliesI'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]....
I have a stored procedure that receives 2 parameters and returns 3 columns.
Here is how I added the SP:
1. Added SP to entity model (.edmx) via update model from DB.
2. Did a Function Import -- selected my SP, clicked "Get Column Information" and then created a new complex type (myStoredProcedureName_Result) which I assigned.
3. My LINQ is the following:
[Code]....
I have two dropdown list, which is 'names' and 'types' and it's being populated by a dataset. It contains an additional item "-- ALL --" to indicate that all items of a particular field are being shown. I have an SQL select statement to filter the records according to the selected item of the dropdowns. I used a select statement to bind the records to a datagrid with regards to the selected items.
SELECT * FROM table where name = ddlnameselecteditem AND type = ddltypeselecteditem
The problem now is when I select a name from the names dropdownlist and types dropdownlist has a selection of -- ALL --, there would be no return records because there's no such thing as '-- ALL --' record in column 'types' i'm querying. I need to display rows of the selected 'name' while still showing all the 'types'. How could I achieve this? I think I need to avoid the '-- ALL --' item from the dropdownlist.
I'm pretty new at ASP. I've got a sheet I'm trying to modify using an IF statement. I tried putting them in, in different ways, but it either shows up in the form or I get the options multiple times
[Code]....
i have a variable picked up elsewhere strArea, so I was trying to do
something like
[Code]....
I have tried putting the if's in different places, as well as case statement
but usually I end up with my drop down option list as
1
1
2
1
2
3
I'm trying to pull a list of clients that have both of two codes in the code table. Here is what I have tried and it does not return any rows. I know that there are clients that have both codes.
[Code]....