Hello all.
Is there a simpler way to write something like this:
select column_a from table
where column_b = ( select max( column_b ) from table )
ie. find the row where column_b is at it's maximum and return another
column's value?
something like (hypothetically)
select column_a from table
where column_b is max
Leaving aside the issue of whether max( column_b ) is unique ...
Thanks.
Aaron
Example, suppose you have these 2 tables(NOTE: My example is totally different, but I'm simply trying to setupthe a simpler version, so excuse the bad design; not the point here)CarsSold {CarsSoldID int (primary key)MonthID intDealershipID intNumberCarsSold int}Dealership {DealershipID int, (primary key)SalesTax decimal}so you may have many delearships selling cars the same month, and youwanted a report to sum up totals of all dealerships per month.select cs.MonthID,sum(cs.NumberCarsSold) as 'TotalCarsSoldInMonth',sum(cs.NumberCarsSold) * d.SalesTax as 'TotalRevenue'from CarsSold csjoin Dealership d on d.DealershipID = cs.DealershipIDgroup by cs.MonthIDMy question is, is there a way to achieve something like this:select cs.MonthID,sum(cs.NumberCarsSold) as 'TotalCarsSoldInMonth',TotalCarsSoldInMonth * d.SalesTax as 'TotalRevenue'from CarsSold csjoin Dealership d on d.DealershipID = cs.DealershipIDgroup by cs.MonthIDNotice the only difference is the 3rd column in the select. Myparticular query is performing some crazy math and the only way I knowof how to get it to work is to copy and past the logic which isgetting out way out of hand...Thanks,Dave
View 5 Replies View RelatedUsing SQL Server 2000. How can I refer to one alias in another column?E.g., (this a contrived example but you get the idea)SELECT time, distance, (distance / time) AS speed, (speed / time) AS acceleration FROM dataNote how the speed alias is used in the definition of acceleration alias but this doesn't seem to work.
View 11 Replies View RelatedUsing SQL Server 2000. How can I refer to one alias in another column?
E.g., (this a contrived example but you get the idea)
SELECT time, distance, (distance / time) AS speed, (speed / time) AS acceleration FROM data
Note how the "speed" alias is used in the definition of "acceleration" alias but this doesn't work.
Hello All,Is there a way to run sql select statements with column numbers inplace of column names in SQLServer.Current SQL ==> select AddressId,Name,City from AddressIs this possible ==> select 1,2,5 from AddressThanks in Advance,-Sandeep
View 1 Replies View Relatedi need help to get the value of a column which is selected from a column of another table....
View 3 Replies View Relatedi dont't know how to select row with max column value group by another column. I have T-SQL
CREATE PROC GET_USER AS
BEGIN
SELECT T.USER_ID ,MAX(T.START_DATE) AS [Max First Start Date] ,
MAX(T.[Second Start Date]) AS [Max Second Start Date],
T.PC_GRADE,T.FULL_NAME,T.COST_CENTER,T.TYPE_PERSON_NAME,T.TRANSACTION_NAME,T.DEPARTMENT_NAME ,T.BU_NAME,T.BRANCH_NAME,T.POSITION_NAME
FROM (
[code]....
I want to know how to select a Column without selecting a column name
View 6 Replies View RelatedFor example,I have a table "authors" with a column "author_name",and it has three value "Anne Ringer,Ann Dull,Johnson White".Here I want to create a new table by using a select sentence,its columns come from the values of the column "author_name".
can you tell me how can I complete this with the SQL?
Not sure if this is possible, but maybe. I have a table that contains a bunch of logs.
I'm doing something like SELECT * FROM LOGS. The primary key in this table is LogID.
I have another table that contains error messages. Each LogID could have multiple error messages associated with it. To get the error messages.
When I perform my first select query listed above, I would like one of the columns to be populated with ALL the error messages for that particular LogID (SELECT * FROM ERRORS WHERE LogID = MyLogID).
Any thoughts as to how I could accomplish such a daring feat?
Is there a way to select a column number without knowing its name? For example I want to select column 3 of a file without knowing it is:
Select [column 3] FROM OPENROWSET ('MSDASQL', 'Driver={Microsoft Text Driver (*.txt; *.csv)};
DefaultDir=D:ReportsTest;','select * from Report.txt ')
How do I get all the entries in a column, but make it so that there is only one occurance of each unique item.
View 4 Replies View RelatedHere is the code.
SELECT info1.categoria FROM (
SELECT DC2.categoria,count(DC2.ref) as quantidade
FROM Disco_Categoria as DC2
GROUP BY DC2.categoria
) as info1
WHERE info1.quantidade > 2 AND info1.categoria != ALL (
SELECT DC2.categoria FROM Encomenda_Disco as ED2 INNER JOIN Disco_Categoria as DC2
ON ED2.ref=DC2.ref
WHERE ED2.cod = 1 --ED.cod
)
What I'm trying to do is to check if a category doesn't exist for a specific delivery (Encomenda). After reading about the predicated ALL, I decided that it was to be used, but it isn't returning the expected result.
Someone correct me if I'm wrong (since probably I am ;)) but what I'm asking in the code is to compare info1.categoria with all results of DC2.Categoria to check if there is any match, returning true if there isn't any match at all.
It is just not doing it. Can someone please point me at the problem so I can solve this?
Thanks in advance.
hi,i have
q_no process mech instru comm budget
q3malusasimalusasimalu
q5sasimalusasimalusasi
i want to select all the column names where q_no=q3
Hi,
I have a table with 100 column i want to select 99 column except one without writting name of all the 99 columns in the select statement.
Hi,
I have the following tables.
Code Block
CREATE TABLE [Liga] (
[cod_cliente] [varchar] (50) COLLATE Latin1_General_CI_AS NULL ,
[tronco] [int] NULL ,
[nrtelefone] [varchar] (50) COLLATE Latin1_General_CI_AS NULL
) ON [PRIMARY]
GO
1111 10 89543964
1111 9 32659841
1111 8 32569874
1111 7 25469874
CREATE TABLE [Lista] (
[cod_cliente] [varchar] (50) COLLATE Latin1_General_CI_AS NULL ,
[troncos] [varchar] (50) COLLATE Latin1_General_CI_AS NULL
) ON [PRIMARY]
GO
'1111' '8,10'
For this data what I need to do is return all rows from "Liga" that the value of the column Tronco is in troncos from the table Lista
So for example if I query this data the return would be
1111 8 32569874
1111 10 89543964
And so on...
How can I do that ?
Hi, i have a doubt, can a column have the value of a select? I mean, i'm making a photo gallery and on the categories table i need to know how many photos i have, so i need to count in the table photos the ones associated with the id of the category, the problem is that i'm listing categories with a datalist, is there a way so that a column on the categories table have the result of the count? Thanks in advance, if you don't understood my question feel free to ask me again and i'll try to explain it better, i really need this.
View 1 Replies View Relatedhey everyone, everyone here has been extremely helpful, I'm extremely appreciative. i have another question if anyone has the time.I want to pull the value of one column/row into a string, i know this value to be one int or 1 word under 10 characters. I'd like to be able to use this variable as a conditional, so my if/else statements have information to work off of. I have been using the following format in by code-behind pages to do my SQL insert/update/delete - however I cannot figure out how to SELECT and get those results into a string. I'm new obviously, so dumbed-down explanation would be greatly appreciated!This is what I've used so far for working with my DB:using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls; protected void Button1_Click(object sender, EventArgs e) { SqlDataSource profilesinsert = new SqlDataSource(); profilesinsert.ConnectionString = ConfigurationManager.ConnectionStrings["ProfilesConnectionString1"].ToString(); profilesinsert.InsertCommandType = SqlDataSourceCommandType.Text; profilesinsert.InsertCommand = "INSERT INTO ProfileComments (Approved) VALUES (@Approved)"; profilesinsert.InsertParameters.Add("Approved", "yes"); profilesinsert.Insert(); } The SELECT into a string I'd like to do on page_load, so that I can test that variable upon button click, and have a different value in "Approved" depending on the 1 int or small word result from my SELECT.THANK YOU very much to anyone who offers help! love you guys :)
View 19 Replies View RelatedI'm building a textbox with search functionality towards SQL 2000.
The textbox is to include various search phrases, like "phrase1 phrase2 phrase3". Sort of like search engines where all words are considered. Do keep in mind that it's SQL2000 and not 2005. I've got all the strings I want to perform the search against in one column but various values in this column.
The only thing I've come up with is to create "WHERE columnName LIKE @phrase1 OR columnName LIKE @phrase2" where I inject % as apropiate and chop up the string, but I'm hoping this is not the solution because it doesn't seem really clean (with 10 search words) and today I'm not having a 'bad-hack' day so I want it better.
Whats is the best way of doing this?
Cheers!
/Eskil
I've looked on line, but can't figure out how to select the first fifty characters of a varchar field in sql. (this seems so easy).. argh..
View 1 Replies View RelatedI swear I have done this before and can't remember how.
I want to select columns in a SELECT statement by their number instead of name.
I have looked everywhere for the syntax.
Also, is there a function to 'count' the number of columns in a table?
Thanks.
Hey all. I'm trying to create a stored proc that will update a variable column, depending on the parameter I pass it. Here's the stored proc:
CREATE PROCEDURE VoteStoredProc
(
@PlayerID int,
@VoteID int,
@BootNumber nvarchar(50)
)
AS
DECLARE @SQLStatement varchar(255)
SET @SQLStatement = 'UPDATE myTable SET '+ @BootNumber+'='+ @VoteID + ' WHERE (PlayerID = '+ @PlayerID +')'
EXEC(@SQLStatement)
GO
I get the following error:
Syntax error converting the nvarchar value 'UPDATE myTable SET Boot3=' to a column of data type int
The update statement is good, because if I use the stored proc below (hard-coded the column), it works fine.
CREATE PROCEDURE VoteStoredProc
(
@PlayerID int,
@VoteID int,
@BootNumber nvarchar(50)
)
AS
UPDATE
myTable
SET
Boot3 = @VoteID
WHERE
PlayerID = @PlayerID
GO
Is there a way to dynamically choose a column/field to select from? Or is my syntax incorrect..?
Thanks!
In other words, rather than read a column vertically,
select one record with a comma delimited list of all data values in the
column?
Thanks!
I am trying to create a view that shows the first occurance of a particular value in a column.
For example, I have a table that contains multiple part numbers that can be associated with mulitple customers. The first occurance of the part number in the table is associated with the main customer for that part number. I want this view to only show the main customer for each part number.
I am able to do this in Access using the following SQL statement:
SELECT dbo_CustPattMast.PATTERN_NUM, First (dbo_CustPattMast.CUST_NUM)
FROM dbo_CustPattMast
GROUP BY dbo_CustPattMast.PATTERN_NUM
When trying to create the view in the SQL Manager, it will not allow me to use the First statement.
Thanks in advance for your help,
Jennifer
I have a table that is a very general layout so I can expand upon values later in the future easily. Basically it looks like this:
Code:
ID PlayerID Ability Score
1 1 STR 18
2 1 DEX 17
3 1 CON 16
What I'm trying to do is create a stored procedure where I pass in a PlayerID and it will return a result set of
Code:
STR DEX CON
18 17 16
It doesn't appear that there's a way in SQL Server 2000 to SELECT a column AS a variable. I suppose I could go about creating a temporary table, but seems like an odd work around to get it to work. Any suggestions? Or am I just missing something obvious?
bm
View 3 Replies View RelatedI want to select with column order without field name .
Is it possible ?
SQL2000 db
...
I want to select a field by its order in table, but without naming it to have a constant name of it, like :
select (column01) as L1 from myTable
Hi,
I have a question.
select name, count, 1 Aa c1, 2 as c2, c1+c2 As total
from table1
From this example, the program will give out error message,
c1, and c2 are invalid columns.
In MS Access, it works. But, SQL query Analayer doesn't work this statement.
So, does query analayzer handle this case?
Thanks.
Dear all,
I have problem in the following SQL. Please help. The problem in the inner select statement for the group by clause. Please help
select company.billtocompany,
(select quartername from quarter where a.orderdate between
convert(datetime, quarter.startdate) and convert(datetime, quarter.enddate)+1) quartername,
sum( a.qty) orderedqty
from a, company, countrycode
where a.billtocompany=company.compcode and
a.countrycode=countrycode.countrycode and
a.billtocompany='111111' and
a.orderdate between convert(datetime, '2008/01/01') and convert(datetime, '2008/10/01')
group by company.billtocompany, countrycode.countryname, quartername
I have three records, with one column that is an identity/PK. I want the last record inserted and the whole record's information from the query, using a where clause to limit the record returned from the table.
I get an error if I do not have the group by added. However, with this query, I still get three records returned.
SELECT max([tablePK])
,[orderGUID]
,[tblPeopleFK]
,[tbl_shippingAddressFK]
,[tblBillingMethodFK]
,[shippingMethod]
[Code] ....
I have this
SELECT DISTINCT inta, name, PHN#, fROM nydta.adres
WHERE inta <> ' '
I want the distinct for inta because alot of the time phone is blank so those are coming thru i do want all columns, but distinct for inta.
Is there a query that can return teh name of the primary key column of a table ?
View 2 Replies View RelatedHi,
I'm new to the forum, and semi new to sql, I've been working with
it for about 1 year now, but from a programmers side. I simply
just plug in my selects, and inserts, but most of my work is in
asp.net. I apologize if I have posted in the wrong forum section.
Here is my problem....
I have a table that has the follwing columns..
UserName, question1, question2, Id
question1 and question2 columns simply hold either 'Y' or 'N'
Meaning that the user either answered Y or N for the questions.
I'm trying to create another column on the fly... example....
select *,
[othercolumn] = case question1
when 'Y' then 'question1,'
else ''
end
from mytable
If both questions1 and questions2 have the column value of 'Y', then
the othercolumn should have 'question1,question2' as the end of the above select.
The above example only works for checking for question1, but I will need
to do the same for question2 and concatinate that into the othercolumn column.
I hope, I have explained myself well.
Please let me know if you need more info from me.