Transact SQL :: Difference Between Exist And In?
Aug 24, 2015
select count(cars.carid)
from
Cars left
join
RentalOrders
on
cars.CarID=RentalOrders.CarRef
where carid not
in(selectRentalOrders.CarRef
from
RentalOrders)
when I wrote this above-query for sofiacarrental_v2.2 it shows 30 in the result but when I changed it this query to that:
select count(cars.carid)
from
Cars left
join
RentalOrders
on
cars.CarID=RentalOrders.CarRef
where not exists
(select
RentalOrders.CarRef
from
RentalOrders)
I replaced not in with not exists it showed 0 in the result.there is any point in term of using them or I made a mistake in the second query?
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Jun 2, 2015
I need to show maxInspectionDate in my result but I can't figure out how to do it.
SELECT E.equipmentID, E.assetNumber, E.T5Code , E.InspectionDuration, E.Description,
E.AssetType, E.WorkingLimits
FROM Equipment E
WHERE EXISTS
(SELECT t.equipmentID, r.maxInspectionDate
FROM (
SELECT equipmentID, MAX(nextInspectionDate) as maxInspectionDate
FROM equipmentInspection
GROUP BY equipmentID
) r
INNER JOIN equipmentInspection t
ON t.equipmentID = r.equipmentID AND t.nextInspectionDate = r.maxInspectionDate)
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Sep 27, 2011
i need to write a query that insert in A table if and only if the row does not exist already in the table (the source is a select statement).
i tried the following:
insert into [A]
select * from [B]
where Not EXISTS (select * from [A])
table [A] is still empty, but it does not insert any thing! .. what i know is that the EXIST checks if the selected row exists in the subquery, ain't ?
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Jul 28, 2015
I have a SQL table like this
Events time endTime
Tram 2014-11-28 12:35:50.390 2014-11-28 12:43:19.120
Re-Entry 2014-11-28 12:43:19.120 2014-11-28 12:56:07.040
Tram 2014-11-28 12:56:07.040 2014-11-28 13:15:25.060 // EndDate Before dump
Dump 2014-11-28 13:15:25.060 2014-11-28 13:50:07.233
Tram 2014-11-28 13:50:07.233 2014-11-28 13:55:17.473
Load 2014-11-28 13:55:17.473 2014-11-28 14:06:55.063
Tram 2014-11-28 14:06:55.063 2014-11-28 14:37:12.100
Dump 2014-11-28 14:37:12.100 2014-11-28 14:37:12.100
I want to calculate the Difference between 2 dates like endtime before Dump -time..I am expecting output like this
ROW1 ROW2
1 00:39:34
2 23:12:55
You can find the details in SQL Fiddle here.
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Jun 18, 2015
I have a table that will be loaded over night everyday and I need to write a query on running value difference ?
List of Columns (ID, Branch ,Group, Date, Value)
ID Branch Group Date Value
1 A C 2015-06-01 10
2 A C 2015-06-02 15
3 A C 2015-06-03 25
4 A C 2015-06-04 20
5 B D 2015-06-01 20
6 B D 2015-06-02 25
7 B D 2015-06-03 10
8 B D 2015-06-04 20
I want the Output like below with a Running value difference in comparison to previous day.
ID Branch Group Date Value Running Value
1 A C 2015-06-01 10 10
2 A C 2015-06-02 15 05
3 A C 2015-06-03 25 10
4 A C 2015-06-04 20 -5
5 B D 2015-06-01 20 20
6 B D 2015-06-02 25 05
7 B D 2015-06-03 10 -15
8 B D 2015-06-04 20 10
Basically I need to compare the previous day and show the difference. How can I do this in SQL 2008 r2?
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Aug 10, 2015
What is the difference between the Index and the Primary Key?
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May 28, 2015
What is the difference between Heaps and Balanced Trees? Is it true that if a table has no clustered index it is a heap?
If so , if the table has only Non clustered index, is it still a Heap?
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Sep 25, 2015
I want a difference in days
Select datediff(dd,Target_Date,Achv_Date)
Now , checks are
1] when target date greater than achv_Date the difference should be greater than 0
means for FileID 77608
Select datediff(dd,'2015-09-24 00:00:00.000','2015-09-24 10:42:32.823')
i am getting -6 it should be 6 cant switch Target_Date and Achv_Date in datediff else i will get opposite result in first four records basically, i want a two column TAT and Status beside achv_date based on the values of two dates difference see above ..and also want a result of (No. of Yes in status / No. of Files that has achv_date )i.e. result= (7/8) = 87%
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Jun 19, 2015
What is the difference between Batch and Stored Procedure?
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Jul 10, 2015
Currently my script is using the below mentioned query to find the time difference.
DATEDIFF(HH,DATEADD(SS,hcreacion,fcreacion) ,DATEADD(SS,hcerrar,fcreacion))
If there is 1 hr 30 minutes time difference, I am getting 2 hours as output. But we need 1.30 as output. is there any way to achieve this?
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May 8, 2015
how to measure a change in inventory over various stores. My sql2008R2 express db gets a new row of data everyday from each store(about 40 stores) for a single product stock count "OnHand" and if there is any new stock on order. When the new stock arrives it is added to the "OnHand" count. I want to measure the delta change per day,per store. I'm stuck on how to separate the stores and how to query the delta of stock.My data base looks like this
TimeStamp Store
OnHand OnOrder
2015/04/22 18 1 - Concord
12
0
2015/04/23 11 1 - Concord
11
[code]....
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May 23, 2015
I have the below query
DECLARE @GivenDate DATE='2015-05-13'
create table #table (LedgerID int,AttDate Date, checkedtime time,checkedtype varchar(1))
insert into #table (LedgerID,AttDate,checkedtime,checkedtype) values (1232,'2015-05-13','09:01:48.0000000','I')
insert into #table (LedgerID,AttDate,checkedtime,checkedtype) values (1232,'2015-05-13','13:05:52.0000000','O')
insert into #table (LedgerID,AttDate,checkedtime,checkedtype) values (1232,'2015-05-13','14:10:25.0000000','I')
[code]....
the result is like below
i need 'TotalDiffernceTime' column as new column (OUT1-IN1)+(OUT2-IN2).
i am using SQLServer 2008 R2
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Jun 21, 2015
I have a table data like below
id type timestamp
1001 start1 10:34:23:545
1001 start2 10:34:24:545
1001 end2 10:34:24:845
1001 end1 10:34:25:545
1002 start1 10:34:25:645
1002 start2 10:34:25:745
1002 end2 10:34:25:945
1002 end1 10:34:25:965
I need the result as follows
id millisecond diff start1end1 millisecond diff start2end2
1001 end1 timestamp-start1 timestamp end2 timestamp-start2 timestamp
1002 end1 timestamp-start1 timestamp end2 timestamp-start2 timestamp
SQL Server 2008 R2
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Apr 16, 2015
I'm trying to calculate the time difference between a date field and today's date in days. The date field is not mandatory and can therefore be blank. I'm trying to execute the following query:
SELECT employee_code, Civil_ID, DATEDIFF(Day, Civil_ID, GETDATE())
FROM ODEV_VIEW_Credentials_Expiry_Dates
WHERE Civil_ID IS NOT NULL AND Civil_ID != ''
ORDER BY employee_code
I keep getting the following message:
The conversion of a varchar data type to a datetime data type resulted in an out-of-range value.
Warning: Null value is eliminated by an aggregate or other SET operation.
No matter what filter I use to process non-blank dates, it never works.
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Jul 15, 2015
just see same kind of two sql statement
BEGIN TRAN
SELECT *
FROM authors AU
WITH (HOLDLOCK, ROWLOCK)
WHERE AU.au_id = '274-80-9391'
COMMIT TRAN
BEGIN TRANSELECT *
FROM authors AU
WITH (UPDLOCK, ROWLOCK)
WHERE AU.au_id = '274-80-9391'COMMIT TRAN
i like to know what is the difference between HOLDLOCK and UPDLOCK in sql server. explain with example to better understand.
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Sep 22, 2015
Here is the table:
empid lastname firstname title titleofcourtesy ModifiedOROriginal
1 Davis1 Sara CEO Ms. Modified
1 Davis Sara CEO Ms. Original
We need an output like this:
empid
1
1
lastname
Davis1
Davis
firstname
Sara
Sara
title
CEO
CEO
titleofcourtesy
Ms.
Ms.
ModifiedOROriginal
Modified
Original
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Nov 16, 2015
Given a table that has three columns that together create a key and two columns that together define NameValue pairs, how can the difference between instances of values be calculated and displayed?One table is used to contain periodic dumps of data from various sources. Because this is an early stage of development for the software project instead of having explicit columns that contain specific data the table contains name/value pairs. This allows the software to export anything to the database table. When this data is imported, earch row shares the same key (three columns containing a machine type, serial number and a timestamp), a name that identifies the data and a string that contains the actual data. While this arrangement makes it trivial to support the addition of any data that the software developers want to export, it makes it less obvious as to how to generate reports.Let's make an example. Lets assume that there are two vending machines, each of which has just 3 snacks and each of which generates two separate reports.
Type Sn Timestamp Name Value
A 1 2015-08-15 12:34 Snick 5
A 1 2015-08-15 12:34 Mars 10
A 1 2015-08-15 12:34 MandM 0B 2 2015-08-15 15:31 Snick 1
B 2 2015-08-15 15:31 Mars 9
B 2 2015-08-15 15:31 MandM 0A 1 2015-08-21 09:12 Snick 11
A 1 2015-08-21 09:12 Mars 18
[code]...
So, the names of the values become the report's columns. The reports are sorted by timestamp, then by type, then by serial number.The value associated with the previous row that shares the same name is subtracted from the value of the next row in which the same name occurs and that becomes the displayed value in the report.
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Aug 19, 2015
I need to get all distinct values from 10 different tables that exist in the field [favoritesport] And each table holds close to 50K records so I am looking at 500,000 records to get distinct values for. Would the fastest, less intrusive way of achieving this be to just create a UNION ALL so run
Select Distinct([favoritesport]) from table1
Union
Select Distinct([favoritesport]) from table2
Union
Select Distinct([favoritesport]) from table3
etc etc etc
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May 21, 2015
declare @siva1 datetime;
declare @siva2 datetime;
set @siva1='2014-03-10 05:02:11'
set @siva2='2014-03-12 23:52:11'
i want output like this 2.18 means 2day 18hours difference how using query
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Sep 23, 2015
In sql we have a built in function
DATEDIFF(second, startdate, enddate)
How can we achieve the same using Log parser query for date time in format (2015-09-22 10:25:30.5220)
Example:
startdate = 2015-09-22 10:25:30.5220.
Enddate = 2015-09-22 10:26:30.5220
After DateDiff I need to get 6 seconds.
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Jun 22, 2015
I have encountered a problem with a specific set of tables. The same select yields slightly differing execution plans in two different environments (instances). But the slight variation seems to contain a huge differences in stats. I don't know the significance of these stats. The two tables have the exact same indices.
This is the selcet statement:
SELECT 'xx' FROM DUKS.dbo.Profiler
WHERE DNA_Løbenummer IN
(SELECT DNA_Løbenummer FROM DUKS.dbo.Effektregister
WHERE Sagsnummer = '2015-00002')
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Sep 16, 2015
We have a maintenance plan running everyday for rebuild and re-organisation of indexes. But, somehow its getting failed. Here is the script that we are running for rebuild or re-org.
/*
Script to handle index maintenance
Tuning constants are set in-line current values are;
SET @MinFragmentation
SET @MaxFragmentation
SET @TrivialPageCount
[code]....
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Oct 14, 2015
Here I have 2 Dates. CreatedDttm & ModifiedDttm.
I want - DATEDIFF(Day,CreatedDttm,ModifiedDttm) and I have to exclude the Weekend days from that query result.
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Aug 5, 2015
equipmentid downtimestartdate downtimeenddate dowtime
a3er 2015-03-15 02:00 2015-03-17 23:00 69
b6e4 2015-03-18 13:00 2015-03-20 04:00 39
i have many rows(in our production table, thousands of rows are there) like above in a table and i want like below output(in output total 6rows only)
equipmentid downtimestartdate downtimeenddate dowtime
a3er 2015-03-15 02:00 2015-03-15 24:00 22
a3er 2015-03-16 00:00 2015-03-15 24:00 24
a3er 2015-03-17 00:00 2015-03-15 23:00 23
[code]...
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Sep 16, 2015
In SQL 2012.A query that joins 2 table, with order by clause doesn't get sorted and the result set is not ordered. This happens when some of the columns in the where criteria are in a unique index which is the index that is used for the join between the 2 tables, and all the columns in the unique index are in the where criteria.In the query plan there is no component for sort.The work around was to drop the unique index, or change it to a non-unique index. Once this was done, the execution plan was changed to add the sort component (even when the index was changed to non-unique and the join was still using this index).
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Sep 5, 2015
I am really puzzled by an apparent difference between table index key column order and its statistics order. I was under understanding that index statistics mirror index definition. However, in my db 2470 index ordinal definitions match statistics definition but 66 do not. I also can reproduce such discrepancy in 2008 R2, 2012 and 2014.
As per definition,
stats_column_id
int
1-based ordinal within set of stats columns
This script duplicates this for me.
BEGIN TRAN
GO
use tempdb
GO
CREATE TABLE [dbo].[ItemProperties](
[itmID] [int] NOT NULL,
[cpID] [smallint] NOT NULL,
[ipuID] [tinyint] NOT NULL,
[Code] ....
The result I get is this:
object_id stats_name
stats_column_list
1525580473 PK_ItemProperties_itmID_ipuID_cpID itmID, cpID, ipuID,
and
object_id index_name
index_column_list
1525580473 PK_ItemProperties_itmID_ipuID_cpID itmID, ipuID, cpID,
Also a query I used to discover this in my db is:
WITH stat AS
(
SELECT
s.object_id
,s.name as stats_name
,(
SELECT
c.name + ', ' as [data()]
FROM sys.stats_columns as sc
[Code] .....
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Oct 8, 2015
I was writing a query using both left outer join and inner join. And the query was ....
SELECT
S.companyname AS supplier, S.country,P.productid, P.productname, P.unitprice,C.categoryname
FROM
Production.Suppliers AS S LEFT OUTER JOIN
(Production.Products AS P
INNER JOIN Production.Categories AS C
[code]....
However ,the result that i got was correct.But when i did the same query using the left outer join in both the cases
i.e..
SELECT
S.companyname AS supplier, S.country,P.productid, P.productname, P.unitprice,C.categoryname
FROM
Production.Suppliers AS S LEFT OUTER JOIN
(Production.Products AS P
LEFT OUTER JOIN Production.Categories AS C
ON C.categoryid = P.categoryid)
ON
S.supplierid = P.supplierid
WHERE
S.country = N'Japan';
The result i got was same,i.e
supplier country productid productname unitprice categorynameSupplier QOVFD Japan 9 Product AOZBW 97.00 Meat/PoultrySupplier QOVFD Japan 10 Product YHXGE 31.00 SeafoodSupplier QOVFD Japan 74 Product BKAZJ 10.00 ProduceSupplier QWUSF Japan 13 Product POXFU 6.00 SeafoodSupplier QWUSF Japan 14 Product PWCJB 23.25 ProduceSupplier QWUSF Japan 15 Product KSZOI 15.50 CondimentsSupplier XYZ Japan NULL NULL NULL NULLSupplier XYZ Japan NULL NULL NULL NULL
and this time also i got the same result.My question is that is there any specific reason to use inner join when join the third table and not the left outer join.
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May 10, 2010
what is difference between outer apply and outer join ,both return rows from left input as well as right input . isnt it?
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Dec 3, 2013
I have data as below: select ID,code,go,back from tableA
ID code go back
2 C US UK
2 A UK US
1 A US UK
1 Z UK US
1 C UK US
1 A US UK
I only want to pull out whole ID group which code Z exist. I tried as below:
select ID,code,go,back from tableA A
where exists
( select ID,go,back
from tableA B with (nolock)
where A.ID = B.ID
and A.code='Z')
But it only appear:
ID code go back
1 Z UK US
How can I appear with the group as well?
ID code go back
1 A US UK
1 Z UK US
1 C UK US
1 A US UK
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Oct 24, 2007
Question is in the subject.
Thanks in advance
-Jamie
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Sep 11, 2015
I require outputting the date difference between two date's if it is greater than 7(DateDiff(day, DateAdd(day, t.[Started], Nxt.started), (t.[started])) > 7).I get incorrect syntax on my operator.What is the correct code?
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Jul 26, 2015
Wanted to know about difference between cluster and non cluster index with example.
When to use cluster index and non cluster index .
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May 21, 2015
I have a table that has a unique ID and a datetime of when something changed.
See example:
ID TimeStamp
16094 2013-11-25 11:46:38.357
16095 2013-11-25 11:46:38.430
16096 2013-11-25 11:46:38.713
16097 2013-11-25 11:46:38.717
16098 2013-11-25 11:46:38.780
[Code] ....
Is there a way I can calculate the difference between row 16106 and 16105 and enter it in line 10601.
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