SQL Query (SELECT Statement) And Table Design
Aug 19, 2007
I am wondering if there is a direct query in this case:
I am developing a program to a company which simply sells services
One service may have different prices for different types of clients
The price of any service for any client can change at any time, and I should be able to trace these changes at any time
I made the following tables (simplified): (asterisk for primary key)
(Table) (Fields)
CLIENT_TYPES : ID*, ClientTypeName
SERVICES : ID*, ServiceName
PRICES : ServiceID*, ClientTypeID*, Price, Date*
ORDERS : ID*, Date, ClientTypeID
ORDER_SERVICES : OrderID*, ServiceID*
The field in bold is the area of the question
This is a sample data in the PRICES table:
ServiceID ClientTypeID Price Date1 1 100 1/1/20072 1 150 1/1/20071 2 90 1/1/20072 2 135 1/1/2007
Now if I want to update a price of service 1 for clienttype 1, I add the following row:
1 1 100 1/1/2008
So one product for one client can have any number of prices with different dates
The following query:
SELECT * FROM PRICES WHERE ClientTypeID = 1
will retrieve all prices with repeats for a specific client (#1 here)
What I want is a query to retrieve the most recent prices for specific client for all products, even if a query on query
If there is commemts on table design please tell me
thanks for any one who provides help
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Aug 25, 2015
enable or shortcut key for Auto Database or Table View while coding. When I wrote sample code like below
SELECT * FROM VENKAT.
When I type V then I need to know there is Venkat Database with pop Message below.
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Sep 3, 2007
Hello... im having a problem with my query optimization....
I have a query that looks like this:
SELECT * FROM table1
WHERE location_id IN (SELECT location_id from location_table WHERE account_id = 998)
it produces my desired data but it takes 3 minutes to run the query... is there any way to make this faster?... thank you so much...
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Jul 31, 2014
I need to write a select statement that take the upper table and select the lower table.
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May 31, 2006
ASP.net 2.0 (VB), SQL Server 2005:While creating a new TableAdapter in design section, I'm using the query builder and trying to write a query within "LIKE" statement as below -Example1: SELECT * FROM table WHERE field LIKE @'%TextBoxData%'Example2: SELECT * FROM table WHERE field LIKE '%@TextBoxData%'
but these query doesn't work...error in building query...any clue to make it work? If I remove "@" sure the query will work with normal but '%TextBoxData%' will become a hardcoding value...this is not I want...I want make the TextBoxData become a flexible value depend on the data what I enter in my text box like 'abc,123' not like 'TextBoxData'...
I know normally it supposed to be like:
"SELECT * FROM table WHERE field LIKE '%" & TextBoxData.Text & "%'"
It can work when in Code Section, but not at this time...because now i'm trying to made it with "Query Builder" for TableAdapter " in Design Section...hmm did you get what I mean? Sorry for my bad english
Thanks in advance
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Oct 15, 2007
Hello,
I hope someone can answer this, I'm not even sure where to start looking for documentation on this. The SQL query I'm referencing is included at the bottom of this post.
I have a query with 3 select statements joined together like tables. It works great, except for the fact that I need to declare a variable and make it a table within two of those 3. The example is below. You'll see that I have three select statements made into tables A, B, and C, and that table A has a variable @years, which is a table.
This works when I just run table A by itself, but when I execute the entire query, I get an error about the "declare" keyword, and then some other errors near the word "as" and the ")" character. These are some of those errors that I find pretty meaningless that just mean I've really thrown something off.
So, am I not allowed to declare a variable within these SELECT tables that I'm creating and joining?
Thanks in advance,
Andy
Select * from
(
declare @years table (years int);
insert into @years
select
CASE
WHEN month(getdate()) in (1) THEN year(getdate())-1
WHEN month(getdate()) in (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12) THEN year(getdate())
END
select
u.fullname
, sum(tx.Dm_Time) LastMonthBillhours
, sum(tx.Dm_Time)/((select dm_billabledays from dm_billabledays where Dm_Month = Month(GetDate()))*8) lasmosbillingpercentage
from
Dm_TimeEntry tx
join
systemuserbase u
on
(tx.owninguser = u.systemuserid)
where
Month(tx.Dm_Date) = Month(getdate())-1
and
year(dm_date) = (select years from @years)
and tx.dm_billable = 1
group by u.fullname
) as A
left outer join
(select
u.FullName
, sum(tx.Dm_Time) Billhours
, ((sum(tx.Dm_Time))
/
((day(getdate()) * ((5.0)/(7.0))) * 8)) perc
from
Dm_TimeEntry tx
join
systemuserbase u
on
(tx.owninguser = u.systemuserid)
where
tx.Dm_Billable = '1'
and
month(tx.Dm_Date) = month(GetDate())
and
year(tx.Dm_Date) = year(GetDate())
group by u.fullname) as B
on
A.Fullname = B.Fullname
Left Outer Join
(
select
u.fullname
, sum(tx.Dm_Time) TwomosagoBillhours
, sum(tx.Dm_Time)/((select dm_billabledays from dm_billabledays where Dm_Month = Month(GetDate()))*8) twomosagobillingpercentage
from
Dm_TimeEntry tx
join
systemuserbase u
on
(tx.owninguser = u.systemuserid)
where
Month(tx.Dm_Date) = Month(getdate())-2
group by u.fullname
) as C
on
A.Fullname = C.Fullname
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Mar 17, 2008
I have two table with some identical fields and I am trying to populate one of the tables with a row that has been selected from the other table.Is there some standard code that I can use to take the selected row and input the data into the appropriate fields in the other table?
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Oct 4, 2006
Hi,
I have a table called notes, with thousands of rows of "notes" entered by customer services agents. Each row has an account number, date and username columns.
An account can have many notes on thetable.
How can I select the last two notes on the table left for each account? Trying to use select top 2, but of course it's only giving me the top 2 notes for ALL accounts.
Please help.
Thanks very much.
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Jan 29, 2008
In my select statement, I return a column for 'datediff' using a CASEquery. I call this column 'Elapsed_days'is there anyway I can use this result later on in the same select? IEI want to refer to 'elasped days' in another CASE query rather thanhave to re-write something which incorporates the original one.Simpler the better - I'm new!Make any sense?Hope so
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May 29, 2007
I'd like to make a logic statement, that would take as arguments result of the sql select query. In more details: I would like to create a local Bool variable that would be false if some value is NULL in the table (or select query).Query example:select taskID from Users where Login=@usernameWhich classes/methods should i use to solve this problem? I use SqlDataSource to get access to database and i think i should use something like SqlDataSource.UpdateCommand and SqlDataSource.UpdateParameters but dont know how to build from this a logic statement.Thanks in advance
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Mar 14, 2008
I need to pull one field from one table and one field from another table that is i need to pull 'eGroupName' field from 'Exception' Table and 'eGroup Description' field from 'eGroup' Table but there is no connection between these two tables means there is no forign key relationship between these two tables but i need to pull both fields . If i use INNER JOIN i need to mention relationship between both tables right? so how to write query for this , and one more thing is i need to add an extra column as "Location"which is not there in either of tables for that i need to use CASE Statement as if DataSource = 1 then "ABC" else "BCD" . pls help me out in writing SQL Statement???
is this correct ?? its showing me errors
Select Exception.eGroupName, eGroup.eGroupDescription from Exception Inner Join eGroup ON ???
(case when 'DataSource =1' then 'ABC' then 'BCD' endcase)
Where .....
Pls correct me
Thanks
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Mar 17, 2008
Hello friends , I have table (MoneyTrans) with following structure
[Id] [bigint] NOT NULL,
[TransDate] [smalldatetime] NOT NULL,
[TransName] [varchar](30) NOT NULL, -- CAN have values 'Deposit' / 'WithDraw'
[Amount] [money] NOT NULL
I need to write a query to generate following output
Trans Date, total deposits, total withdrawls, closing balance
i.e. Trans Date, sum(amount) for TransName='Deposit' and Date=TransDate , sum(amount) for TransName=Withdraw and Date=TransDate , Closing balance (Sum of deposit - sum of withdraw for date < = TransDate )
I am working on this for past two days with out getting a right solution. Any help is appreciated
Sara
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Mar 20, 2006
How do I Query two tables and minus the result to be displayed in a gridview. I will appreciate all the help that I can get in this regard. Find below my two select statement
1st Select StatementDim SelectString As String = "SELECT DISTINCT [Course_Code], [Course_Description], [Credit_Hr], [Course_Type], [Course_Method] FROM [MSISCourses] WHERE (([Course_Type] = Core) OR ([Course_Type] = Information Integration Project) "If radBtnView.Checked = True ThenSelectString = SelectString & " OR ([Course_Type] = 'Knowledge')"End IfIf chkGView.Checked = True ThenSelectString = SelectString & " OR ([Specialization] = 'Data Management')"End IfIf chkGView2.Checked = True ThenSelectString = SelectString & " OR ([Specialization] = 'General')"End IfIf chkGView1.Checked = True ThenSelectString = SelectString & " OR ([Specialization] = 'Electronic Commerce')"End IfIf chkGView3.Checked = True ThenSelectString = SelectString & " OR ([Specialization] = 'Network Administration and Security')"End IfIf chkGView4.Checked = True ThenSelectString = SelectString & " OR ([Specialization] = 'Healthcare Information Systems')"End IfSqlDataSource3.SelectCommand = SelectString
2nd Select Statement"SELECT DISTINCT [Co_Code], [Co_Description], [Cr_Hr], [Co_Type], [Co_Method] FROM [StudentCourses] WHERE ([Co_Code] = StdIDLabel)"
my gridview<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" DataKeyNames="Course_Code" DataSourceID="SqlDataSource3" GridLines="Horizontal"><Columns><asp:BoundField DataField="Course_Code" HeaderText="Course_Code" ReadOnly="True" SortExpression="Course_Code" /> <asp:BoundField DataField="Course_Description" HeaderText="Course_Description" SortExpression="Course_Description" /> <asp:BoundField DataField="Credit_Hr" HeaderText="Credit_Hr" SortExpression="Credit_Hr" /> <asp:BoundField DataField="Course_Type" HeaderText="Course_Type" SortExpression="Course_Type" /> <asp:BoundField DataField="Course_Method" HeaderText="Course_Method" SortExpression="Course_Method" /> </Columns></asp:GridView>
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Jul 14, 1999
An ADODB error spawn everytime I query more than 15 fields in a specific SQL Table. My sql statement is something like this:
set rs=server.createobject("ADODB.Recordset")
rs.open "select * from mytbl",application("mycon"),1,3
And the error is something like this:
"you can't query more than the maximum field "
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Jul 25, 2006
Hi folks,
Hope you are all well.
I am using a CASE statement within a SELECT query to sum up values for different customers.
SELECT CR_CUST.Customer_Code,
'General_01' = CASE WHEN CR_PROD.Part_Class_Code = '01' THEN SUM(CR_INVOICE.Line_Value) ELSE 0 END,
'General_07' = CASE WHEN CR_PROD.Part_Class_Code = '07' THEN SUM(CR_INVOICE.Line_Value) ELSE 0 END,
'General_08' = CASE WHEN CR_PROD.Part_Class_Code = '08' THEN SUM(CR_INVOICE.Line_Value) ELSE 0 END
FROM CR_CUST
INNER JOIN CR_INVOICE ON CR_CUST.Customer_Code = CR_INVOICE.Customer_Code
INNER JOIN CR_PROD ON CR_INVOICE.Product_Code = CR_PROD.Product_Code
WHERE (CR_PROD.Part_Class_Code = 1 OR
CR_PROD.Part_Class_Code = 7 OR
CR_PROD.Part_Class_Code = 8)
GROUP BY CR_CUST.Customer_Code,
CR_PROD.Part_Class_Code
The above query produces the following results...
Customer_Code General_01 General_07 General_08
------------- ---------------- ---------------- ----------------
02210 10074.30 .00 .00
02347 7606.49 .00 .00
02210 .00 12618.42 .00
02347 .00 13131.63 .00
02210 .00 .00 4505.44
02347 .00 .00 5018.03
My question is this - is it possible to expand my SQL Query into a Sub Query so that each customers data appears on the same line of the results?, like so...
Customer_Code General_01 General_07 General_08
------------- ---------------- ---------------- ----------------
02210 10074.30 12618.42 4505.44
02347 7606.49 13131.63 5018.03
I can achieve this by writing my results into a temporary table and extracting the data with the following SQL Query, but I just thought it would be really cool if I could do it in one SQL Statement without using a temporary table.
SELECT Customer_Code,
SUM(General_01),
SUM(General_07),
SUM(General_08)
FROM #MyTempTable
GROUP BY Customer_Code
Thanks in advance,
Kev
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May 8, 2014
I am trying to apply the logic from the following resource: URL....but cannot get it to work with my logic for some reason.For example, the following query:
;WITH CTE1 AS (SELECT CONVERT(VARCHAR, GETDATE(), 120) AS Col1),
CTE2 AS (SELECT CONVERT(VARCHAR, GETDATE(), 111) AS Col2)
SELECT CTE1.Col1,CTE2.Col2
FROM CTE1
CROSS JOIN CTE2
GO
Produces the following output:
Col1 | Col2
2014-05-08 10:55:54 | 2014/05/08
But, as soon as I try to do something else like:
;WITH CTE1 AS (SELECT COUNT(login) FROM userinfo AS Col1),
CTE2 AS (SELECT COUNT(login) FROM userinfo AS Col2)
SELECT CTE1.Col1,CTE2.Col2
FROM CTE1
CROSS JOIN CTE2
GO
I receive the following errors:
Msg 8155, Level 16, State 2, Line 1
No column name was specified for column 1 of 'CTE1'.
Msg 8155, Level 16, State 2, Line 2
No column name was specified for column 1 of 'CTE2'.
Are there limitations when trying to use multiple CTE in a single query?
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Jul 20, 2005
hi my self avii want to copy data from one table to other table,by giving certaincondition and i want o use insert statement .in this i want to pass somevalue directly and some value from select statement , if i try i ll geterror i.e all column of destination table (i.e in which i want to insertdata) should match with all columns in values column some thing likethis.plz give me some helpful suggetion on this
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Jul 20, 2005
hi myself avii am developing one appliacaion in which i am using vb 6 as front end,adodb as database library and sql sever 7 as backend.i want to update one table for which i required data from other table. andiretrive data from second table by giving some condition. when i get data,then to update first table i need to use do while loop. instead of that iwant to use select statement directly in update query.plz give me some help.following is the my queries and its out putStrSql = ""StrSql = "Select * From SalesVchMaterialDesc where TransactionID=" &txtTransactionID.text & ""rsMName.Open StrSql, Conn, adOpenKeysetDo While Not rsMName.EOFStrSql = ""StrSql = "Update StockTable Set Outward=Outward - " &rsMName("Netweight") & ",OutwardQty=OutwardQty - " & rsMName("Qty") & "Where MaterialId=" & rsMName("Material_Name") & " and VoucherDate='" &Format(rsMName("VoucherDate"), "mm/dd/yyyy") & "'RsAdd.Open StrSql, Conn, adOpenStaticrsMName.MoveNextLooprsMName.Closeout put***main querySelect * From SalesVchMaterialDesc where TransactionID=848do while not loopUpdate StockTable Set Outward=Outward - 8.06,OutwardQty=OutwardQty - 1Where MaterialId=221 and VoucherDate='04/01/2004' and SMID=0loop
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Feb 4, 2008
How come SQL Server doesn't like the following?
CREATE PROCEDURE sp_myproc
(@myvar int)
AS
CASE @myvar
WHEN 1
EXEC sp1
WHEN 2
EXEC sp2
WHEN 3
EXEC sp3
DEFAULT
EXEC sp3
END
How can I code something like this legally in T-SQL?
Thanks
Jason
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May 6, 2008
I'm trying to get the <Title> node value returned in the select statement below, but cant quite get it to work. I have the <ID> node being returned in the statement, but not the title. Any help is apprecited.
param ids = '<Collection><Content><ID>1</ID><Title>Document 1</Title></Content>< Content><ID>2</ID><Title>Document 2</Title></Content></Collection>'
CREATE PROCEDURE [GetDownloads](@Ids xml) AS
DECLARE @ResearchDocuments TABLE (ID int)
INSERT INTO @ResearchDocuments (ID) SELECT ParamValues.ID.value('.','VARCHAR(20)')
FROM @Ids.nodes('/Collection/Content/ID') as ParamValues(ID)
SELECT * FROM research_downloads INNER JOIN @ResearchDocuments rd ON research_downloads.doc_id = rd.ID Where research_downloads.post_sf = 0
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May 7, 2008
I'm trying to get the <Title> node value returned in the select statement below, but cant quite get it to work. I have the <ID> node being returned in the statement, but not the title. Any help is apprecited.
param ids = '<Collection><Content><ID>1</ID><Title>Document 1</Title></Content>< Content><ID>2</ID><Title>Document 2</Title></Content></Collection>'
CREATE PROCEDURE [GetDownloads](@Ids xml) AS
DECLARE @ResearchDocuments TABLE (ID int)
INSERT INTO @ResearchDocuments (ID) SELECT ParamValues.ID.value('.','VARCHAR(20)')
FROM @Ids.nodes('/Collection/Content/ID') as ParamValues(ID)
SELECT * FROM research_downloads INNER JOIN @ResearchDocuments rd ON research_downloads.doc_id = rd.ID Where research_downloads.post_sf = 0
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Nov 24, 2004
I have the following query:
(SELECT MIN(CFGDates.AccountPdEnd)
FROM CFGDates LEFT JOIN
AR ON AR.Period = CFGDates.Period
WHERE AR.Period = '200408')
I need to convert this into a case statement.
I tried various ways but did not get the result that I was after
Thanks,
Laura
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Feb 11, 2015
I need to insert data into a table based on the results returned by a select statement. Basically, the select statement below gives me a list of all the work orders created in the last hour.
select worknumber from worksorderhdr where date_created > DATEADD(HOUR, -1, GETDATE())
This might return anywhere between 5 and 50 records each time. What I then need to do is use each of the work numbers returned to create a record in the spec_checklist_remind table. The other details in the insert statement will be the same for each insert, it's just the worknumber from the select statement that needs to be added to the insert where the ?? are below:
INSERT INTO spec_checklist_remind (form, record_type, linked_to_worknumber, spec_checklist_id) values (5, 0, '??',52)"
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Dec 13, 2007
I have noticed something strange on the select statement that you can use on query notification.
I have a table that contains a compute column let's call it "Calculate".
If I subscribe to query notification:
Select ID from table
the subscription fails.
The column Calculate doesn't use the column ID.
Why??
for me it shouldn't be the case
Thankx
MArina B.
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Nov 5, 2015
I've have a need with SQL Server 2005 (so I've no MERGE statement), I have to merge 2 tables, the target table has 10 fields, the first 4 are the clustered index and primary key, the source table has the same fields and index.Since I can't use the MERGE statement (I'm in SQL 2005) I have to make a double step operation, and INSERT and an UPDATE, I can't figure how to design the WHERE condition for the insert statement.
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Apr 23, 2007
Hi,I'm trying to dynamically assign the table name for a SELECT statement but can't get it to work. Given below is my code: SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE GetLastProjectNumber (@DeptCode varchar(20))
AS
BEGIN TRANSACTION
SET NOCOUNT ON
DECLARE @ProjectNumber int
SET @ProjectNumber = 'ProjectNumber' + REPLACE(CONVERT(char,@DeptCode),'.','')
SELECT MAX(@ProjectNumber)
FROM 'tbl_ProjectNumber' + REPLACE(CONVERT(char,@DeptCode),'.','');
END TRANSACTION Basically, I have a bunch of tables which were created dynamically using the code from this post and now I need to access the last row in a table that matches the supplied DeptCode. This is the error I get:Msg 102, Level 15, State 1, Procedure GetLastProjectNumber, Line 29Incorrect syntax near 'tbl_ProjectNumber'. Any help would be appreciated.Thanks.
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Feb 4, 2005
I have a table that contains the following structure and information:
Code:
UID Member_Number Time_Stamp Status Reason Event Reg F_Name L_Name
18772054062/3/2005 11:48:27 AMInNonenoneNoneWendyBoud
86930082522/3/2005 12:39:35 PMInNonenoneNoneJeremyAhlman
98772054062/3/2005 12:40:20 PMOutNonenoneNoneWendyBoud
106930082522/3/2005 12:40:45 PMOutNonenoneNoneJeremyAhlman
118772054062/3/2005 12:40:50 PMInNonenoneNoneWendyBoud
128772054062/3/2005 12:46:25 PMOutNonenoneNoneWendyBoud
I need to be able to take this information and display it in a data grid so that on each row I see the Member Number, First and Last Name and the In and Out Time.
I am not sure how to group the In and Out times together so that the query knows which time out corresponds to which time time for the member?
Any help is greatly appreciated!
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Aug 27, 2014
I would like to know if it is possible to do a SELECT statement where I can denormalize my table. I am not sure if it is needed to create a new table at first and insert denormalized values into the created table.
Example
Original table:
ID XXX VALUES
1 a 10
1 b 15
1 c 8
And I want to use SELECT to get this table:
ID a b c
1 10 15 8
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Nov 27, 2006
Dear folks,
create table temptable(eno, ename) as select eno, ename from emp.
here the problem is it is asking for the datatype for the temporary table.
is it not possible to create the temp table without providing the datatypes?
thank you very much.
Vinod
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May 21, 2007
Hi,
I have a field called "Starting DateTime" and I want to convert into my local time. I can convert it in the report with the expression "=System.TimeZone.CurrentTimeZone.ToLocalTime(Fields!Starting_DateTime.Value)", but that is too late. I want to convert it in the Select statement of the query.
Can anyone help me please?
Thx
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Oct 9, 2007
I'm wondering if there is a single statement I can write to pull my data. Let's say my Order table has one field for userId and one field for supervisorId (among other fields) both of which are foreign keys into the Users table where their name, address, etc. are stored. What I'd like to do is to pull all the rows from Order and have a join that pulls the user name and supervisor name from the User table all in one go. Right now I pull all the Orders with just user name joined, and then go back over the objects to add the supervisor name as a separate query.
The reason I'd like to do this is to simplify the objects I'm passing to the GridView by doing a single fetch instead of multiples. I'm using SQL Server, .NET 2.0 and VS.NET 2005.
Thanks
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Jul 12, 2004
Hello fellow .net developers,
In a website I'm working on I need to be able to put all of the user tables in a database in a dropdownlist.
Another dropdownlist then will autopopulate itself with the names of all the columns from the table selected in the first dropdownlist.
So, what I need to know is: is there a sql statement that can return this type of information?
Example:
Table Names in Database: Customers, Suppliers
Columns in Customers Table: Name, Phone, Email, Address
I click on the word "Customers" in the first dropdownlist.
I then see the words "Name", "Phone", "Email", "Address" in the second dropdownlist.
I'm sure you all know this (but I'll say it anyways): I could hardcode this stuff in my code behind file, but that would be really annoying and if the table structure changes I would have to revise my code on the webpage. So any ideas on how to do this the right way would be really cool.
Thanks in advance,
Robert
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Jul 27, 2004
In SQL Server you can do a SELECT INTO to create a new table, much like CREAT TABLE AS in Oracle. I'm putting together a dynamic script that will create a table with the number of columns being the dynamic part of my script. Got any suggestions that come to mind?
Example:
I need to count the number of weeks between two dates, my columns in the table need to be at least one for every week returned in my query.
I'm thinking of getting a count of the number of weeks then building my column string comma separated then do my CREATE TABLE statement rather then the SELECT INTO... But I'm not sure I'll be able to do that using a variable that holds the string of column names. I'm guess the only way I can do this is via either VBScript or VB rather then from within the database.
BTW - this would be a stored procedure...
Any suggestions would be greatly appreciated.
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