Transact SQL :: Check Overlapping In Table
Sep 29, 2015
How can I check the overlapping in a simple table like:
Create table forum (cid int, bfrom date, tfrom date, fval int)
Insert into forum values (1, '2014-01-01', '2014-01-31',10),(2, '2014-01-01', '2014-01-31',12),(1, '2014-02-01', '2014-02-28',8),(2, '2014-02-01', '2014-02-28',6),(1, '2014-03-01', '2014-03-31',11),(2, '2014-03-01', '2014-03-31',5),(1, '2014-04-01',
'2014-04-30',14), (2, '2014-03-01', '2014-04-30',12)
In the example above there is an overlapping for the cid 2 in March. How can I check, which select should I apply?
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Oct 6, 2015
I am trying to create a check constraint that prevents entry of a date range that overlaps any other date range in the table. The below example script results in the error message: The INSERT statement conflicted with the CHECK constraint "ck_dt_overlap". what I am doing wrong?
CREATE TABLE t1 (d1 date,d2 date)
go
create function dbo.dt_overlap (@d1 date, @d2 date) RETURNS BIT
AS
BEGIN
IF EXISTS (SELECT 1 from t1 where d1 between @d1 and @d2 or d2 between @d1 and @d2)
RETURN 1
RETURN 0
END
go
alter table t1 add constraint ck_dt_overlap CHECK (dbo.dt_overlap(d1,d2)=0)
go
insert into t1 values ('2015-01-01','2015-02-01')
insert into t1 values ('2015-01-15','2015-02-15')
--BOTH inserts result in the following message: The INSERT statement conflicted with the CHECK constraint "ck_dt_overlap".
drop table t1
drop function dbo.dt_overlap
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Dec 2, 2015
This question is extension from the topic Updating table Rows with overlapping dates: [URL] .....
I am actually having a table as following:
Table Name: PromotionList
Note that the NULL in endDate means no end date or infinite end date.
ID PromotionID StartDate EndDate Flag
1 1 2015-04-05 2015-05-28 0
2 1 2015-04-23 NULL 0
3 2 2015-03-03 2015-05-04 0
4 1 2015-04-23 2015-05-29 0
5 1 2015-01-01 2015-02-02 0
And I would like to produce the following outcome to the same table (using update statement): As what you all observe, it merge all overlapping dates based on same promotion ID by taking the minimum start date and maximum end date. Only the first row of overlapping date is updated to the desired value and the flag value change to 1. For other overlapping value, it will be set to NULL and the flag becomes 2.
Flag = 1, success merge row. Flag = 2, fail row
ID PromotionID StartDate EndDate Flag
1 1 2015-04-05 NULL 1
2 1 NULL NULL 2
3 2 2015-03-03 2015-05-04 1
4 1 NULL NULL 2
5 1 2015-01-01 2015-02-02 1
The second part that I would like to acheive is based on the first table as well. However, this time I would like to merge the date which results in the minimum start date and End Date of the last overlapping rows. Since the End date of the last overlapping rows of promotion ID 1 is row with ID 4 with End Date 2015-05-29, the table will result as follow after update.
ID PromotionID StartDate EndDate Flag
1 1 2015-04-05 2015-05-29 1
2 1 NULL NULL 2
3 2 2015-03-03 2015-05-04 1
4 1 NULL NULL 2
5 1 2015-01-01 2015-02-02 1
Note that above is just sample Data. Actual data might contain thousands of records and hopefully it can be done in single update statement.
Extending from the above question, now two extra columns has been added to the table, which is ShouldDelete and PromotionCategoryID respectively.
Original table:
ID PromotionID StartDate EndDate Flag ShouldDelete PromotionCategoryID
1 1 2015-04-05 2015-05-28 0 Y 1
2 1 2015-04-23 2015-05-29 0 NULL NULL
3 2 2015-03-03 2015-05-04 0 N NULL
4 1 2015-04-23 NULL 0 Y 1
5 1 2015-01-01 2015-02-02 0 NULL NULL
Should Delete can take Y, N and NULL
PromotionCategoryID can take any integer and NULL
Now it should be partition according with promotionid, shoulddelete and promotioncategoryID (these 3 should be same).
By taking the min date and max date of the same group, the following table should be achieve after the table is updated.
Final outcome:
ID PromotionID StartDate EndDate Flag ShouldDelete PromotionCategoryID
1 1 2015-04-05 NULL 1 Y 1
2 1 2015-04-23 2015-05-29 1 NULL NULL
3 2 2015-03-03 2015-05-04 1 N NULL
4 1 NULL NULL 2 Y 1
5 1 2015-01-01 2015-02-02 1 NULL NULL
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Oct 20, 2015
[URL] ...
So What I am trying to accomplish is sum up overlapping time ranges while also keeping Unique data rows within the table. So If a data row is unique meaning it is NOT within a overlapping group of data rows then I want to just insert it into a "final table", but if the data rows are overlapping then I want to grab the min(timestart) and the max(timestop) and the PKID of the data row with the max(timestop) within the overlapping group.
I accomplish this task using nested cursors, however When I place my method into a trigger which runs on INSERT, then my trigger never runs and nothing happens. Is there a way to accomplish this without using cursors. I have placed my cursor method into the sql fiddle to be inspected.
create table temp1
( pkid int,
line int,
dateentry date,
timestart time,
timestop time
)
[Code] ....
DESIRED RESULTS:
1060
1
2015-10-01
16:30:00
17:00:00
30
NULL
[Code] .....
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Oct 18, 2015
IF OBJECT_ID('tempdb..#OverLappingDates') IS NOT NULL
DROP TABLE #OverLappingDates
CREATE TABLE #OverLappingDates
(
MemberID Varchar (50),
ClaimID Varchar(50),
StartDate DateTime,
EndDate DateTime
)
[Code] ....
I need to select only records where dates are over lapping for the same memberid...For this scenario i need an output First 2 records (MemberID 1 has 2 claiims overlapping dates).
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Jul 8, 2015
how can I check the overlapping and the LostPeriod by chargeid?
create table #forum (contractid int, chargeid int, ByFrom date, ByTo date)
insert into #forum values ('7','18','2005-04-01','2007-03-31'), ('7','19','2008-06-01','2010-03-31'),
('7','20','2014-04-01','2015-06-01'),
('8','10','2003-10-01','2005-03-31'),('8','11','2006-12-01','2007-07-31'),
('9','11','2003-10-01','2005-03-31'),('9','12','2004-10-01','2015-03-31')
As lost period I mean that period that is not covered by any chargeid. By overlapping I mean having two or more charge id in the same period.
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Aug 18, 2015
I have a table with multiple rows per staff person. Each of these rows has staff_id, start_date, and end_date. Per staff, if any start_date comes between the start_date and end_date of a different row, or if any end_date comes between the start_date and end_date of a different row, then I have to flag these records as being identical.
How can I do this? I have tried doing a Cross Apply because I thought that would do Cartesian product (comparing every row), and I've also tried temp tables. But I haven't gotten either of these to work. Here is some dummy data:
if exists (select * from tempdb.dbo.sysobjects o where o.xtype in ('U') and o.id = object_id(N'tempdb..#staff_records')
) DROP TABLE #staff_records;
create table #staff_records
(
staff_id varchar(max),
[Code] ....
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May 12, 2015
Given the data below, I have a couple needs:
1) Query to determine if any date ranges overlap (regardless of category, e.g., row ids 6 & 7 below)
2) Query to determine if any date ranges of the same category overlap
declare @t1 table (id int primary key, category int, start_date datetime, end_date datetime)
insert @t1 select 1, 1, '1/1/2015 12:00:00 AM', '1/15/2015 12:59:59 PM'
insert @t1 select 2, 1, '1/16/2015 12:00:00 AM', '1/31/2015 12:59:59 PM'
insert @t1 select 3, 1, '2/1/2015 12:00:00 AM', '2/15/2015 12:59:59 PM'
insert @t1 select 4, 1, '2/16/2015 12:00:00 AM', '2/28/2015 12:59:59 PM'
insert @t1 select 5, 1, '3/1/2015 12:00:00 AM', '3/15/2015 12:59:59 PM'
[code]....
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May 12, 2015
I am trying to write a SQL Server query that archives x-days old data from [Archive].[TestToDelete] to [Working].[TestToDelete]table. I want to check that if the records on ArchiveTable do not exist then insert then deleted...which will be converted to a proc later.. archives x-days old data from [Working].[TestToDelete] to [Archive].[TestToDelete] table */Here is the table definition, it is the same for both working and archive tables. There are indexes on: IpAddress, Logdate, Server, User and Sysdate (clustered).
CREATE TABLE [Archive].[TestToDelete]([Server] [varchar](16) NOT NULL,[Logdate] [datetime] NOT NULL,[IpAddress] [varchar](16) NOT NULL,[Login] [varchar](64) NULL,[User] [varchar](64) NULL,[Sysdate] [datetime] NULL,[Request] [text] NULL,[Status] [varchar](64) NULL,[Length] [varchar](128) NULL,[Referer] [varchar](1024) NULL,[Agent] [varchar](1024) NULL) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]/* the syntax, which will be converted to proc is: */SET NOCOUNT ON;DECLARE @Time DATETIME,@R INT,@ErrMessage NVARCHAR(1024)SET @R = 1/* set @Time to one day old data */SET @Time =
[code]....
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Jun 11, 2015
CREATE TABLE PRODUCT_SALES
(
Salesmanid BIGINT,
Productid BIGINT
)
INSERT INTO PRODUCT_SALES (Salesmanid,Productid) VALUES (1,1)
INSERT INTO PRODUCT_SALES (Salesmanid,Productid) VALUES (1,2)
INSERT INTO PRODUCT_SALES (Salesmanid,Productid) VALUES (1,3)
SELECT * FROM PRODUCT_SALES
/* SalesmanID is reference key from Sales Master and ProductID is reference key from Product Master. How should i restrict user through DB with any constraint check, if user tries to enter
INSERT INTO PRODUCT_SALES (Salesmanid,Productid) VALUES (1,2),
It should throw error , if possible user defined message would be more useful.
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Jul 7, 2015
I have a table which has been partitioned on BIGINT column.
Partitioned_Table (ID BIGINT, Name VARCHAR(10), Gender VARCHAR(2))
I have a left range partition function on ID column.
CREATE PARTITION FUNCTION Partition_Function ( BIGINT )
AS RANGE LEFT
FOR VALUES ( '20150601000', '20150602000', '20150603000' );
That means the first partition is ID >= 20150601000 to ID < 20150602000.
I have to switch in a table into an empty partition.
Switching_In_Table(ID BIGINT, Name VARCHAR(10), Gender VARCHAR(2))
Before the switch in, I am creating a CHECK constraint on Switching_In_Table CHECK(ID LIKE '20150625%') Can I use like clause in this scenario?
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May 20, 2015
I'm wondering if there is some sql I can run to check properties on a table. This would be used to verify things like data types, allow nulls and default values have been set to avoid mistakes. This could be done manually one table and one column at a time, but it would be a lot easier to look at it in the results window.
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Aug 20, 2006
I am using Visual Web Developer Express 2005 and SQL Server Express 2005.
I have set up a trigger that fires when an update has been performed on a specific table. The trigger checks to see if specific columns have been updated. If they have, then the trigger code is executed. This part works fine.
I am now trying to find a way to check if null values exist in either one of two field from the same table. If either field contains a null value, then I don't want the trigger code to be executed.
How can I check for null values and skip a block of code within my Transact Sql trigger.
Thanks.....
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Nov 3, 2015
I have a webpage where users can connect with other users by sending them a request. Sending the request just puts a row in a connect table that contains the users id, the targetusers id, a requesteddate, an accepted date and a disconnectdate (for the original requester to end the connection and a reject bit the the target can reject the request. Hoever I need to check to assure that the connect does nt already exist either as pending (requestdate is not null and accept date is null) or both dates are not null (connection already complete.).
ALTER PROCEDURE [dbo].[requestConnect]
-- Add the parameters for the stored procedure here
@requestor int,
@requested int
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from interfering with SELECT statements.
[Code] ....
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Jul 24, 2015
I have included in the attached SQL:
Declare @table1 table
(
cnsmr_id int,
complainid int,
complaintstat varchar(10)
)
Insert into @table1
[Code] ...
The query should return only cnsmr_id=2 since all the complaints is closed (blank/NULL) i have achieved this using having but is there is more performance way of doing this?
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Jul 20, 2015
I'm wondering if its possible to return the number of files in a folder suing something like DIR command.I'm wanting to do something like, If count(DIR) >0 then do something
else End
exec master.dbo.xp_cmdshell
'dir C:Test'
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Oct 8, 2015
I'm trying to figure out the best way to write a script to deploy environment variables to different servers. To create the variable I'm currently using catalog. create_environment_variable. I want to wrap that in an if not exist statement.I had thought about just blowing away all the variables and recreating them but I thought that wouldn't go over well in prod. I wasn't sure if by deleting the variable, references to the variable would be lost.
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Aug 20, 2015
Basically, I have a membership table that lists each member with an effective period, Eff_Period, that indicates a month when a member was active. So, if a member is active from Jan to Mar, there will be three rows with Eff_Periods of 201501, 201502 and 201503.
All well and good.But, a member may not necessarily have continuous months for active membership. They might have only been active for Jan, Feb and Jun. That would still give them three rows, but with noncontinuous Eff_Periods; they'd be 201501, 201502 and 201506.There is also a table that logs member activity. It has an Activity_Date that holds the date of the activity - betcha didn't see that comin'. What I'm trying to do is determine if an activity took place during a period when the member was active.
My original thought was to count how many rows a member has in the Membership table and compare that number to the number of months between the MIN(Eff_Period) and the MAX(Eff_Period). If the numbers didn't matchup, then I knew that the member had a disconnect somewhere; he became inactive, then active again. But, then I thought of the scenario I detailed above and realized that the counts could match, but still have a discontinuity.So, is there a nifty little SQL shortcut that could determine if a target month is contained within a continuous or discontinuous list of months?
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Oct 14, 2015
I am using aloha POS and they have the date for every check in separate fields and now I want to calculate the total time for the checks but unable to get the how of it..
The date is DOB and it's datetime but I just need to extra the getdate() from it.The open time is OPENHOUR and OPENMINThe close time is CLOSEHOUR and CLOSEMIN
so basically the open time for the check will be the DATE FROM DOB + OPENHOUR + OPENMIN
And the close time will be DATE FROM DOB + CLOSEHOUR + CLOSEMIN
How can I get the total minutes for the check?
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Sep 14, 2015
I want to check that no inserts are occurring in 5 tables that are depending on each other and then drop and create those 5 tables. I have scripts to drop and recreate the tables. How do I check that no inserts are happening in these 5 tables?
Table A
Table B dependant on
Table A
Table C dependant on
Table B
Table D dependant on
Table C
Table E dependant on
Table D
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Apr 25, 2015
I have a SQL Server 2005 DB in which a design change requires me to drop a column.Is there a way of identifying all references in the DB including functions & stored procs's that reference this column? I understand there are 3rd party products that can do this but was wondering if there was something baked into SQL Server itself.
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Nov 2, 2015
Is it possible to check if the date has been formatted as dd/mm/yyyy i.e. something like this...
if (@EnterDate <> dd/mm/yyyyy )
SET @message = 'date not in the correct format'
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Aug 21, 2015
query that checks to see if a variable contains special characters; except for hyphens, periods, and accents?
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Aug 5, 2015
I have a table that keeps track of all changes that were performed in an application. There is a column called "old value" and column called "new value". There are some values in the application that don't require data therefore the "old value" or "new value" values can be empty. These columns are an nvarchar data type because the value can be text or numbers or dates. An example is "ReceivedDate". There is a report that is generated based on this table.
What is happening is the query in the report dataset is adding dates when it should be displaying empty. They query is using "CASE/WHEN/THEN". What I need is "When the column is "RecievedDate" and it is not null then convert it to a date". This is for formatting purposes.
This is an example of the table:
UpdateColumn
Old Value
New Value
ReceivedDate
7/8/2015 5:00:00 AM
ReceivedDate
7/8/2015 12:00:00 AM
7/9/2015 5:00:00 AM
ReceivedDate
7/9/2015 12:00:00 AM
So, the first time it was updated there was no value but it was replaced with July 8, 2015 and so on.This is what the report is displaying
This is the query:
CASE UpdateColumn
... WHEN 'ReceivedDate' THEN (replace(convert(varchar(11),CONVERT ( date, oldvalue ), 106), ' ', '-') )
...
I tried adding
CASE UpdateColumn
...
WHEN 'ReceivedDate' IS NOT NULL
THEN (replace(convert(varchar(11),CONVERT ( date, oldvalue ), 106), ' ', '-') )
...
But it did not like the "IS NOT NULL".
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May 27, 2015
Is there a simple command that can be executed to check if the current user has sysadmin privs? I just want to check to see if I have sysadmin privs and if so then execute a command, if not do nothing in .Net code. I just want to do this check once and set a variable in the .net code.
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Oct 29, 2015
Usual way to check if file exists
DECLARE @File_Exists INT
EXEC Master.dbo.xp_fileexist 'serverBSQL_Backupfile.bak', @File_Exists OUT
print @File_Exists
1
And if check folder, can use "nul", but it doesn't work for UNC path
DECLARE @File_Exists INT
EXEC Master.dbo.xp_fileexist 'serverBSQL_Backup
ul', @File_Exists OUT
print @File_Exists
0
If use xp_subdirs like:
EXEC master.dbo.xp_subdirs 'serverBSQL_Backups'
If the folder doesn't exists,
Msg 22006, Level 16, State 1, Line 3
xp_subdirs could not access 'ServerBSQL_Backups*.*': FindFirstFile() returned error 67, 'The network name cannot be found.'
How to check if UNC folder exists in Backup? in my code I want to check if the unc folder exists before doing backup, the unc path is retrieved from other table or backup history.
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Jun 8, 2015
I have to check for existence of mount points on drives and retrieve the Space information for those mount points. Is this even possible with t-sql??
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Oct 16, 2015
I have a query to check the records of job has received after 4pm Monday to Friday and it has completed before 9am next day and also weekend it should be Friday after 4pm and before Monday 10am for particular financial year period. I have my job table which has full date but it doesn't show the date exactly Monday to Friday it shows only as 12-12-2014 like that.
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Oct 19, 2015
how to do a check for 2 columns. As long as there is data for at least one of the columns I want to return rows.
Example Data
create table test
(
ID int,
set1 varchar(50),
set2 varchar(50),
[code]....
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Jul 29, 2015
In SQL Studio, I can go to the restore window and the click "verify backup media". This would check the restore plan listed in this window and check if some of the file are missed.Is there any way to reach this with TQSL? I know there is a "restore verify" command, but this will only verify one backup/file and not the complete restore path. I'm looking for a TSQL solution which is able to control that all necessary backup files are still present on the file System and not moved or deleted (e.g through cleanup task).
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Dec 20, 2007
can sql server do this ?
table 1 that check table 2 and adding missing dates
this my employee table
table 1
table Employee on work
------------------------
empid basedate shift
----------------------------
12345678 01/04/2007 1
12345678 02/04/2007 1
12345678 03/04/2007 1
12345678 04/04/2007 1
12345678 05/04/2007 1
12345678 06/04/2007 1
12345678 07/04/2007 1
12345678 08/04/2007 1
12345678 09/04/2007 1
12345678 10/04/2007 1
98765432 20/04/2007 1
98765432 21/04/2007 3
98765432 22/04/2007 3
98765432 23/04/2007 5
98765432 25/04/2007 4
98765432 26/04/2007 4
98765432 27/04/2007 4
98765432 28/04/2007 4
98765432 30/04/2007 4
-----------------------------------------------------------------------------------
and i need to see the missing dates lkie this
in table 2
------------------------------------------------------
table 2 (adding missing dates with zero 0)
table Employee_all_month
------------------------
empid basedate shift
----------------------------
12345678 01/04/2007 1
12345678 02/04/2007 1
12345678 03/04/2007 1
12345678 04/04/2007 1
12345678 05/04/2007 1
12345678 06/04/2007 1
12345678 07/04/2007 1
12345678 08/04/2007 1
12345678 09/04/2007 1
12345678 10/04/2007 1
12345678 11/04/2007 0
12345678 12/04/2007 0
12345678 13/04/2007 0
12345678 14/04/2007 0
12345678 15/04/2007 0
12345678 16/04/2007 0
12345678 17/04/2007 0
12345678 18/04/2007 0
12345678 19/04/2007 0
12345678 20/04/2007 0
.................................and adding missing dates with zero 0 until the end of the month
.................................
12345678 31/04/2007 0
98765432 01/04/2007 0
98765432 02/04/2007 0
98765432 03/04/2007 0
98765432 04/04/2007 0
98765432 05/04/2007 0
98765432 06/04/2007 0
98765432 07/04/2007 0
98765432 08/04/2007 0
98765432 09/04/2007 0
..............................and adding missing dates with zero 0 only whre no dates in this month
.......................
98765432 20/04/2007 1
98765432 21/04/2007 3
98765432 22/04/2007 3
98765432 23/04/2007 5
98765432 25/04/2007 4
98765432 26/04/2007 4
98765432 27/04/2007 4
98765432 28/04/2007 4
98765432 30/04/2007 4
TNX
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Apr 24, 2007
I have the following table structure
CREATE TABLE [dbo].[QDisc](
[Id] [int] NOT NULL,
[MinVal] [int] NOT NULL,
[MaxVal] [int] NOT NULL,
[PerVal] [int] NOT NULL,
CONSTRAINT [PK_QDisc] PRIMARY KEY CLUSTERED
(
[Id] ASC
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
I need to be able to select unique overlapping sets of data based on the minval and maxval.
Simple Example
minval maxval
5 15
16 25
10 20
query would produce
minval maxval
5 10
11 15
16 20
21 25
More Complex example
minval maxval
5 15
16 25
10 20
7 7
1 100
query would produce
minval maxval
1 5
6 6
7 7
8 10
11 15
16 20
21 25
26 100
Extra points if anyone can do this without SP and cursor but I'd be satisfied if someone supplied it that way.
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Oct 4, 2006
i have a table containing following dataeffdate termdate uid----------- ----------- -----------1 2 13 4 25 8 37 9 411 12 512 13 63 6 75 9 8i need to replace all the overlapping records with one recordsuch that resultant table shud look likeeffdate termdate uid1 2 111 13 23 9 3Thanks
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