SELECT Average Values FROM Another Table
May 19, 2008
So I have this table called "listings"... there are 100 unique listings with an integer ID for each.
I have another table called "ratings"... in there are multiple entries that have a listing_id field and a rating field. The rating field is a value from 0-10.
I want to select ALL "listings" from the listings table... and then sort based on the average number that the multiple rating fields in the ratings table has for that listing.
I CAN NOT figure it out!! Any help would be greatly appreciated. Please respond if I have not explained this properly. Thanks in advance.
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May 19, 2006
How do I:Select f1, f2, f3, from tb1 where f1=Select f1 from tb2 where f1='condition'?
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Mar 31, 2008
Hi i am traying to convert privious 10 values.
How to write a query to convert privious 10 Values.
My table Columns like this... SNO PRICE AVG
I have 10 values in my table, in the 11 th row i want to diaplay avg of 10.
i.e average of 1-10 values.
Simlarly sno(2-11) of average and sno(3-12) of average.. .e.t.c
Any one please help me on this problem
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May 9, 2008
How to write Stored Procedure to convert All seconds to Minutes AND finding average.
Ex:
My Table1:
SYMBOL TIME PRICE
EUR A0-FX 2008-05-09 11:37:31.203 1.54035
EUR A0-FX 2008-05-09 11:37:30.030 1.54034
EUR A0-FX 2008-05-09 11:37:28.860 1.54033
EUR A0-FX 2008-05-09 11:37:41.673 1.54032
EUR A0-FX 2008-05-09 11:37:59.720 1.54031
EUR A0-FX 2008-05-09 11:38:09.000 1.54033
EUR A0-FX 2008-05-09 11:38:35.877 1.54032
EUR A0-FX 2008-05-09 11:38:59.767 1.54041
OutPut:
SYMBOL TIME PRICE
EUR A0-FX 11:37 1.54031
EUR A0-FX 11:38 1.54041
I know this how to write ..
;WITH cte
AS
(
SELECT
SYMBOL,
[Time],
Price,
ROW_NUMBER() OVER(PARTITION BY CONVERT(CHAR(5), CAST(Time AS DATETIME), 114) ORDER BY CAST(Time AS DATETIME) ASC) AS rn_1,
ROW_NUMBER() OVER(PARTITION BY CONVERT(CHAR(5), CAST(Time AS DATETIME), 114) ORDER BY CAST(Time AS DATETIME) DESC) AS rn_2
FROM
Table1 WHERE SYMBOL='EUR A0-FX'
)
SELECT SYMBOL='EUR A0-FX',CONVERT(CHAR(5), CAST(Time AS DATETIME), 114) AS [Time],MAX(CASE WHEN rn_2 = 1 THEN Price ELSE NULL END) AS [Close] FROM cte
GROUP BY
CONVERT(CHAR(5), CAST(Time AS DATETIME), 114)
ORDER BY
CAST(CONVERT(CHAR(5), CAST(Time AS DATETIME), 114) AS DATETIME);
But I want to add some additional code in my procedure like AVERAGE of Previous 5 Price Values.
Ex:
SYMBOL TIME PRICE
EUR A0-FX 11:37 1.54031 ß1
EUR A0-FX 11:38 1.54041 ß2
EUR A0-FX 11:39 1.54021 ß3
EUR A0-FX 11:40 1.54081 ß4
EUR A0-FX 11:41 1.54071 ß5 Previous 5 Average PRICE Values.
(1.54061)
EUR A0-FX 11:42 1.54091 ß6
EUR A0-FX 11:43 1.54021 ß7
EUR A0-FX 11:44 1.54081 ß8
My Final
Out Put:
SYMBOL TIME PRICE AVERAGE
EUR A0-FX 11:42 1.54091 ß6 (1.54061)
EUR A0-FX 11:43 1.54021 ß7 (1.54091)
EUR A0-FX 11:44 1.54081 ß8 (1.54071)
At 11.42 time average is 1-5 price values
At 11.43 time average is 2-6 price values
At 11.44 time average is 3-7 price values
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May 20, 2007
Hi, I have something similar to the following: CREATE PROCEDURE dbo.MySproc @columnVal int = nullASBEGIN SELECT * FROM MyTable WHERE MyTable.column = @columnVal END If columnVal is not passed into the stored proc i want it to just select everything from 'MyTable' (without the WHERE clause)....how can I do this in as few lines of code possible?thanks
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Jan 30, 2014
I'm trying to understand why I can enter a query such as:
select 5,"random"
from customers;
and get two columns with 5 and "random" in every respective column field.Why don't I receive a syntax error ?
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Feb 13, 2014
I am using this below query to sum and select maximum values from table. I have converted the cost column here and how can I possibly sum the cost column?
select ID, MAX(Dates) Dates,'$ ' + replace(convert(varchar(100),
convert(money, Cost), 1), '.00', '') Cost, MAX(Funded) Funded from Application group by ID, Dates, Cost, Funded
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Dec 15, 2006
as i stated in the subject i want to gather the biggest five records from the table with sql, how can i do that?
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Apr 21, 2007
CREATE TABLE product
( product_id integer
, translated_name NVARCHAR2(50) );
insert into product values(1,N'kenenisa')
insert into product values(2,N'Ethiopia')
Note that i have used N becuase it is unicode data
then
select * from product; this works fine.
select * from product where product_id=1; this also works fine,
but
select * from product where translated_name=N'kenenisa'; this doesnot work correctly, so how can i fix this problem ?
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Jul 20, 2005
I need to access a table and return 3 values from it in the samerecordset - ie one iteration of the recordset will have 3 values fromthe same database, I have looked at sub queries but they dont seem tobe able to do what i want.I would be grateful for any guidanceS
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Mar 23, 2008
Hi,
I've got a table with trialsubscriptions. When someone orders a trialsubscription he has to fill in a form. With the values in the form I like to fill a database with some extra fields from the trialsubscription table. I get those extra fields with a datareader. But when I insert I can't use the same datareader (its an insert), I can't make two datareaders because I have to close the first one etc.
Does someone had the same problem and has some example code (or make some :-)) Some keywords are also possible!
Thanks!
Roel
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Jul 10, 2015
DECLARE @Query varchar(8000)
Create Table
#tempCountRichard (Status varchar(50), Number Varchar(1000)
Set @Query = 'Insert Into #tempCountRichard
Select Count(Status),
[code]...
With the following SQL. When I select from the temp table I return the right count but my second column doesn't return anything.
Count Status
1010 2000
1111 2222
When I run the query that is being inserted into the the temp table I return the correct results
Count Status
1010 Pass
2000 Pass with Obs
1111 Fail
2222 None
how to select the data from the temp table exactly the same way it was inserted. As I need to select the exact same data from the insert.
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Mar 25, 2008
I have a table with four columns: id, value1, value2, and name. I need to select all duplicate rows with the same name in the name field. Once selected I need to average the value1 and value2 rows with each other. Then I would like to delete the duplicate rows and replace with the new averaged values. Should I first move the duplicate rows to a temp table and then average? Any help would be appreciated.
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Dec 16, 2004
I have a table 'wRelated' with the following columns
[related_id] [int]
[channel_id] [int]
[mui] [varchar]
[price_group_id]
[type_id] [int]
[related_mui] [varchar] (100)
[date_started] [smalldatetime]
[date_ended] [smalldatetime]
[date_entered] [datetime]
[deleted] [tinyint],
[rank] [int]
data in column [mui] is repeated as the table has more than one entries for the same [mui],
The requirement is to select the distinct[mui] but value in all the other columns for the same mui should be select in the next row with null for the same [mui]
The recordset expected should be something like this.
[mui],[related_mui],[price_group_id],[date_entered],[date_ended] m123,rm345,'pr','12-10-2003',12-12-2004'
null,rm789,'ar','12-1-2003',26-2-2004'
null,rm999,'xy','14-12-2002',12-2-2004'
m777,rm889,'pr','12-12-2004',12-12-2004'
null,rm785,'yy','1-10-2002',12-12-2004'
m888,rm345,'pr','2-8-2003',12-12-2004'
null,rm345,'tt','30-7-2002',12-12-2004'
I have tried Unions and temporary table inserts.
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Jul 30, 2007
ID DATE(dd/mm/yy) TYPE QTYIN COST_IN_AMT COST_OUT_AMT(MOVING AVERAGE)
1 01/01/2007 PURCHASE 10 1000
2 01/01/2007 PURCHAES 5 1100
3 01/01/2007 SALES -5 *TobeCalculated
4 02/01/2007 Purchase 20 9000
5 02/01/2007 SALES -10 *TobeCalculated
5 02/01/2007 purchase 50 8000
6 03/01/2007 Sales -10 *TobeCalculate
7 01/01/2007 Purchase 20 12000
I have a table when user add new sales or puchase will be added to this table ITEM_TXNS. The above date is part of the table for a ProductID . (The field is removed here)
In order to calculate the balance amount using moving average, I must calculated the cost_out_amt first on the fly.
When user add new sales I also need to determine the cost/unit for a product id using moving average. The problem is I can not just use sum, because i need to determine cost_out_amt for each sales first which will be calculated on the fly.
The reason i dont store the cost_out_amt (instead calculate on the fly) because User could Edit the previous sales/purchase txn or Insert new sales for a previous date. Example THe record with ID 9. By Adding this txn with ID 9, would cause all the cost_out_amt will be incorrect (Using moving Average) if i store the cost_amout_out on entrying txn and need to be recalculated.
Instead I just want to calculate on the fly and able to determine the cost avr for a specific point of time.
Should I just use Cursor and loop all the record and calculate the cost or maybe I can just use on Select Statement?
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May 12, 2015
I have two tables, D and C, whose INTERSECT / EXCEPT values I'd like to insert in the following table I've created
CREATE TABLE DinCMatch (
servername varchar(50),
account_name varchar (50),
date_checked datetime DEFAULT getdate()
)
The following stmt won't work...
INSERT INTO DinCMatch
select servername, account_name from D
intersect
select servername, account_name from C
... as the number of supplied values does not match table definition.
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Jun 21, 2015
Calculation of an average using DAX' AVERAGE and AVERAGEX.This is the manual calculation in DW, using SQL.In the tabular project (we're i've noticed that these 4 %'s are in itself strange), in a 1st moment i've noticed that i would have to divide by 100 to get the same values as in the DW, so i've used AVERAGEX:
Avg_AMP:=AVERAGEX('Fct Sales';'Fct Sales'[_AMP]/100)
Avg_AMPdollar:=AVERAGEX('Fct Sales';'Fct Sales'[_AMPdollar]/100)
Avg_FMP:=AVERAGEX('Fct Sales';'Fct Sales'[_FMP]/100)
Avg_FMPdollar:=AVERAGEX('Fct Sales';'Fct Sales'[_FMPdollar]/100)
The results were, respectively: 701,68; 2120,60...; -669,441; and finally **-694,74** for Avg_FMPdollar.i can't understand the difference to SQL calculation, since calculations are similar to the other ones. After that i've tried:
test:=SUM([_FMPdollar])/countrows('Fct Sales') AND the value was EQUAL to SQL: -672,17
test2:=AVERAGE('Fct Sales'[_Frontend Margin Percent ACY]), and here, without dividing by 100 in the end, -696,74...
So, AVERAGE and AVERAGEX have a diferent behaviour from the SUM divided by COUNTROWS, and even more strange, test2 doesn't need the division by 100 to be similar to AVERAGEX result.
I even calculated the number of blanks and number of zeros on each column, could it be a difference on the denominator (so, a division by a diferente number of rows), but they are equal on each row.
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Jan 5, 2007
I have two tables, table a holds all the votes by users of each element in table b. I was wondering, how do I get the average of all those votes in table a that relate to that each instance of a element in table b. For example table b has two elements created by a certain user that has been voted 5 times each by users with scores like 2, 5, 4, 2 , 2 for both of them. I just need to get the average of those numbers that pertain to those elements in table b. Thanks for any help.
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May 6, 2014
I have 2 identical tables one contains current settings, the other contains all historical settings.I could create a union view to display the current values from table A and all historical values from table B, butthat would also require a Variable to hold the tblid for both select statements.
Q. Can this be done with one joined or conditional select statement?
DECLARE @tblid int = 501
SELECT 1,2,3,4,'CurrentSetting'
FROM TableA ta
WHERE tblid = @tblid
UNION
SELECT 1,2,3,4,'PreviosSetting'
FROM Tableb tb
WHERE tblid = @tblid
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Feb 20, 2001
How do I find the average size of a row in a table? I need to calculate a row size in a number of tables, then sum those to find the average size of one record ( a hotel guest in this case), which includes entries in a dozen tables.
Thanks
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Aug 21, 2002
I want to find out the average rwo size of a table in sql server 2000. How can i achive this requirment? Please let me know how can i do this?
Thanks & regards,
Dishant Sharma
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Nov 30, 2011
how to average the best X of Y records in a table for each member. Here's what I have for columns:
Member_ID
Year
Month
MonthlySpend (summary value for month)
Basically, I'm trying to find out the average monthly spend for each member's best 4 of the last 6 months (the best months will vary by member of course). I thought this would be simple (and maybe it is) but I am having difficulty figuring this out. I'm using MS SQL 2000.
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Feb 15, 2008
I have a temp_max column and a temp_min column with data for every day for 60 years. I want the average temp for jan of yr1 through yr60, averaged...
I.E. the avg temp for Jan of yr1 is 20 and the avg temp for Jan of yr2 is 30, then the overall average is 25.
The complexity lies within calculating a daily average by month, THEN a yearly average by month, in one statement.
?confused?
Here's the original query.
accept platformId CHAR format a6 prompt 'Enter Platform Id (capital letters in ''): '
SELECT name, country_cd from weather_station where platformId=&&platformId;
SELECT to_char(datetime,'MM') as MO, max(temp_max) as max_T, round(avg((temp_max+temp_min)/2),2) as avg_T, min(temp_min) as min_temTp, count(unique(to_char(datetime, 'yyyy'))) as TOTAL_YEARS
FROM daily
WHERE platformId=&&platformId and platformId = platformId and platformId = platformId and datetime=datetime and datetime=datetime
GROUP BY to_char(datetime,'MM')
ORDER BY to_char(datetime,'MM');
with a result of:
NAME_________________CO
-------------------- --
OFFUTT AFB___________US
MO______MAX_T _____AVG_T__MIN_TEMTP_TOTAL_YEARS
-- ---------- ---------- ---------- -----------
01_________21______-5.31________-30__________60
02_________26______-2.19______-28.3__________61
03_______31.1_______3.61______-26.1__________60
04_______35.6______11.07______-12.2__________60
05_______37.2_______17.2_______-3.3__________60
06_______41.1______22.44__________5__________60
07_______43.3______24.92________7.2__________60
08_______40.6______23.71________5.6__________60
09_________40______18.84_______-2.2__________59
10_______34.4_______12.5_______-8.9__________59
11_________29_______4.13______-23.9__________60
12_________21______-2.52______-28.3__________60
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Jul 26, 2014
I am relatively new to SQL and as a project I have been asked to create the SQL for a simple database to record train details. I want to implement a check constraint which will prevent data from being inserted into a table if the weight of the train is more than the maximum towing weight of the locomotive. FOr instance, I need to add the unladen weight and maximum capacity of each wagon (located in the wagon type table) and compare it against the locomotive maximum pulling weight (the locomotive class table). I have the following SQL but it will not work:
check((select SUM(fwt.unladen_weight+fwt.maximum_payload) from
hauls as h,freight_wagon as fw,freight_wagon_type as fwt,train as t where
h.freight_wagon_serial_number = fw.freight_wagon_serial_number and
fw.freight_wagon_type = fwt.freight_wagon_type and
h.train_number = t.train_number) <
(select lc.maximum_towing_weight from locomotive_class as lc,locomotive as l,train as t where
lc.locomotive_class = l.locomotive_class and l.locomotive_serial_number = t.locomotive_serial_number))
The hauls table is where the constraint has been placed and is the intermediary table between train and freight wagon.
I may not have explained this very well; but in short, i need to compare the sum of two values in one table against a values located in another table...At present I keep getting a message telling me the sub query cannot return more than one row.
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Apr 26, 2015
I have two tables A(uname,address,full_name) and B(uname,full_name). I want to update table A for all matching case of uname in table B.
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Oct 16, 2013
I need to figure out the correct update statement syntax for the following integration.
I have a "Performance Table" which i insert weekly performance numbers into for each store. The table is constructed w/ columns such as Store, Weekenddate, Sales, Refunds, #ofPatients
In a "Averages Table" i have every weekenddate for each store populated. So 52 Weeks for 10 stores = 520 Rows of Store numbers & WeekendDates.
What i would like to do is run a loop or update statement which would update the store average for each weekendate based on the last 13 weeks.
This is my query
update performancestore_avgs set SalesAvg =
(select sum(SalesHit)/Count(Store) from performance_store where performance_store.weekenddate >= performancestore_avgs.weekenddate-84 and performancestore_Avgs.store = performance_store.store)
The update statement runs but the averages are completely wrong.
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Jul 23, 2005
Hi,I'm am looking for a little help. I need to create a SQL view whichjoins a few tables, and I need to return an average for a particularcolumn where a second duplicate ID exists...Heres an example of how the results could be returned...ID | Name | Order No. | Value---+------+-----------+---------5 | test | 1234 | 35 | test2| 1234 | 45 | test3| 1234 | 35 | void | 1235 | 55 | void2| 1235 | 65 | void3| 1235 | 55 | void4| 1235 | 7ID is my main join which joins the tablesName is a unique nameOrder No is the same for the different names, I only need to return onerow with this order no, and the first name (the rest are irrelevant)Value is the field which I wish to return as an average of all 3, 4 orhowever many rows is returned and share the same order no. This iswhere I get totally lost as I am pretty new to SQL. Can anyone provideany help on how I would go about limiting this query to the uniqueorder no's and returning the average of the value field, and I can takeit from there with my own tables.Thanks for your helpstr8
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Apr 30, 2015
table2 is intially populated (basically this will serve as historical table for view); temptable and table2 will are similar except that table2 has two extra columns which are insertdt and updatedt
process:
1. get data from an existing view and insert in temptable
2. truncate/delete contents of table1
3. insert data in table1 by comparing temptable vs table2 (values that exists in temptable but not in table2 will be inserted)
4. insert data in table2 which are not yet present (comparing ID in t2 and temptable)
5. UPDATE table2 whose field/column VALUE is not equal with temptable. (meaning UNMATCHED VALUE)
* for #5 if a value from table2 (historical table) has changed compared to temptable (new result of view) this must be updated as well as the updateddt field value.
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Nov 29, 2007
Is there a method to convert "Select * From Table" to "Select field1,field2,...fieldn From Table" ?
Thanks
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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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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 19, 2014
I have a table that lists math Calculations with "User Friendly Names" that look like the following:
([Sales Units]*[AUR])
([Comp Sales Units]*[Comp AUR])
I need to replace all the "User Friendly Names" with "System Names" in the calculations, i.e., I need "Sales Units" to be replaced with "cSalesUnits", "AUR" replaced with "cAUR", "Comp Sales Units" with "cCompSalesUnits", and "Comp AUR" with "cCompAUR". (It isn't always as easy as removing spaces and added 'c' to the beginning of the string...)
The new formulas need to look like the following:
([cSalesUnits]*[cAUR])
([cCompSalesUnits]*[cCompAUR])
I have created a CTE of all the "Look-up" values, and have tried all kinds of joins, and other functions to achieve this, but so far nothing has quite worked.
How can I accomplish this?
Here is some SQL for set up. There are over 500 formulas that need updating with over 400 different "look up" possibilities, so hard coding something isn't really an option.
DECLARE @Synonyms TABLE
(
UserFriendlyName VARCHAR(128)
, SystemNames VARCHAR(128)
)
INSERT INTO @Synonyms
( UserFriendlyName, SystemNames )
[Code] .....
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Aug 19, 2015
I have a stored procedure that selects the unique Name of an item from one table.
SELECT DISTINCT ChainName from Chains
For each ChainName, there exists 0 or more StoreNames in the Stores. I want to return the result of this select as the second field in each row of the result set.
SELECT DISTINCT StoreName FROM Stores WHERE Stores.ChainName = ChainName
Each row of the result set returned by the stored procedure would contain:
ChainName, Array of StoreNames (or comma separated strings or whatever)
How can I code a stored procedure to do this?
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