Transact SQL :: Find Circular Reference In The Table
Jun 1, 2015
Create table #tblActvity
(
activityIDvarchar (50),
activityParentIDvarchar(50)
)
Insert into #tblActvity
SElect '1',Null
[Code] ...
--If I pass activityId 3 or 2 or 4 it should return 0 as none of the activity is circular but If I pass 5, 6 or 7 it should return 1 as they have circular reference....
I need a sql qry which will require to find a circular reference in it.....
As in above sample of data ,If I pass activityId 3 or 2 or 4 to qry it should return 0 as none of the activity is circular but If I pass 5, 6 or 7 it should return 1 as they have circular reference....
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Aug 10, 2015
One of our Oracle Tables changed and I am wondering if there's any way that I can query all of our Stored Procedures to try and find out if that Oracle Table Name is referenced in any of our SQL Server Stored Procedures OPENQUERY statements?
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Apr 25, 2008
I have a table like the following
Table=Items
Type / Name
3 / Active Item
3 / Active Item
4 / New Item
4 / New Item
5 / Old Item
5 / Old Item
How do I run a querry to update the Type Colum entrys from 5's to 3's? I have tried the following:
UPDATE Items SET Type = 3 WHERE Type = 5
The above querry passes SQL Querry analyzer, but the querry itself provides the following error: Unable to parse query text.
I think the error is due to the fact that I am using a circular reference to update the same Column that I am testing on.
MS-SQL 2005 SP-2
Any help would be FANTASTIC!
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Jun 25, 2007
I have a hypothetical question. Suppose you have three database tables. One represents the moneyin a cash register. This money can be composed of Dollars or any amount of change. At any particular time you might have no dollars in the register but only change, or both or vice versa. To represent this I created three tables. One for Currency, Dollars and Change. My database isset up so that there is a one to many relationship between the table CashRegister and Dollars. And also a one to many relationship between CashRegister and change.
Is this alright? Or is this somehow a circular reference?
CashRegister-----------CurrencyID(PK)
Dollars --> this table represents dollar amounts-------DollarsId(PK)typeOfCurrnecyAmount
Change --> this table represents coins------ChangeIdAmounttypeOfCurrnecy
MoneyType --> table Indicates the type of currency, change or dollars---------typeOfCurrnecy(PK)
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Mar 6, 2014
I'm going around in circles trying to visualise what's happening in this code,
declare @ReturnValue int, @ProcessFlag int
exec @ReturnValue=spGetProcessFlag @ProcessFlag output
select @ReturnValue as ReturnValue, @ProcessFlag as ProcessFlag
I get the feeling that the code runs spGetProcessFlag, and assigns the value to either @ReturnValue or @ProcessFlag.
By the way - next task is to direct SSIS whether to fail package or continue running.
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Oct 3, 2006
The script below can be used to determine the reference levels of all tables in a database in order to be able to create a script to load tables in the correct order to prevent Foreign Key violations.
This script returns 3 result sets. The first shows the tables in order by level and table name. The second shows tables and tables that reference it in order by table and referencing table. The third shows tables and tables it references in order by table and referenced table.
Tables at level 0 have no related tables, except self-references. Tables at level 1 reference no other table, but are referenced by other tables. Tables at levels 2 and above are tables which reference lower level tables and may be referenced by higher levels. Tables with a level of NULL may indicate a circular reference (example: TableA references TableB and TableB references TableA).
Tables at levels 0 and 1 can be loaded first without FK violations, and then the tables at higher levels can be loaded in order by level from lower to higher to prevent FK violations. All tables at the same level can be loaded at the same time without FK violations.
Tested on SQL 2000 only. Please post any errors found.
Edit 2006/10/10:
Fixed bug with tables that have multiple references, and moved tables that have only self-references to level 1 from level 0.
-- Start of Script - Find_Table_Reference_Levels.sql
/*
Find Table Reference Levels
This script finds table references and ranks them by level in order
to be able to load tables with FK references in the correct order.
Tables can then be loaded one level at a time from lower to higher.
This script also shows all the relationships for each table
by tables it references and by tables that reference it.
Level 0 is tables which have no FK relationships.
Level 1 is tables which reference no other tables, except
themselves, and are only referenced by higher level tables
or themselves.
Levels 2 and above are tables which reference lower levels
and may be referenced by higher levels or themselves.
*/
declare @r table (
PK_TABLE nvarchar(200),
FK_TABLE nvarchar(200),
primary key clustered (PK_TABLE,FK_TABLE))
declare @rs table (
PK_TABLE nvarchar(200),
FK_TABLE nvarchar(200),
primary key clustered (PK_TABLE,FK_TABLE))
declare @t table (
REF_LEVEL int,
TABLE_NAME nvarchar(200) not null primary key clustered )
declare @table table (
TABLE_NAME nvarchar(200) not null primary key clustered )
set nocount off
print 'Load tables for database '+db_name()
insert into @table
select
TABLE_NAME = a.TABLE_SCHEMA+'.'+a.TABLE_NAME
from
INFORMATION_SCHEMA.TABLES a
where
a.TABLE_TYPE = 'BASE TABLE'and
a.TABLE_SCHEMA+'.'+a.TABLE_NAME <> 'dbo.dtproperties'
order by
1
print 'Load PK/FK references'
insert into @r
selectdistinct
PK_TABLE =
b.TABLE_SCHEMA+'.'+b.TABLE_NAME,
FK_TABLE =
c.TABLE_SCHEMA+'.'+c.TABLE_NAME
from
INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS a
join
INFORMATION_SCHEMA.TABLE_CONSTRAINTS b
on
a.CONSTRAINT_SCHEMA = b.CONSTRAINT_SCHEMA and
a.UNIQUE_CONSTRAINT_NAME = b.CONSTRAINT_NAME
join
INFORMATION_SCHEMA.TABLE_CONSTRAINTS c
on
a.CONSTRAINT_SCHEMA = c.CONSTRAINT_SCHEMA and
a.CONSTRAINT_NAME = c.CONSTRAINT_NAME
order by
1,2
print 'Make copy of PK/FK references'
insert into @rs
select
*
from
@r
order by
1,2
print 'Load un-referenced tables as level 0'
insert into @t
select
REF_LEVEL = 0,
a.TABLE_NAME
from
@table a
where
a.TABLE_NAME not in
(
select PK_TABLE from @r union all
select FK_TABLE from @r
)
order by
1
-- select * from @r
print 'Remove self references'
delete from @r
where
PK_TABLE = FK_TABLE
declare @level int
set @level = 0
while @level < 100
begin
set @level = @level + 1
print 'Delete lower level references'
delete from @r
where
PK_TABLE in
( select TABLE_NAME from @t )
or
FK_TABLE in
( select TABLE_NAME from @t )
print 'Load level '+convert(varchar(20),@level)+' tables'
insert into @t
select
REF_LEVEL =@level,
a.TABLE_NAME
from
@table a
where
a.TABLE_NAME not in
( select FK_TABLE from @r )
and
a.TABLE_NAME not in
( select TABLE_NAME from @t )
order by
1
if not exists (select * from @r )
begin
print 'Done loading table levels'
print ''
break
end
end
print 'Count of Tables by level'
print ''
select
REF_LEVEL,
TABLE_COUNT = count(*)
from
@t
group by
REF_LEVEL
order by
REF_LEVEL
print 'Tables in order by level and table name'
print 'Note: Null REF_LEVEL nay indicate possible circular reference'
print ''
select
b.REF_LEVEL,
TABLE_NAME = convert(varchar(40),a.TABLE_NAME)
from
@table a
left join
@t b
on a.TABLE_NAME = b.TABLE_NAME
order by
b.REF_LEVEL,
a.TABLE_NAME
print 'Tables and Referencing Tables'
print ''
select
b.REF_LEVEL,
TABLE_NAME = convert(varchar(40),a.TABLE_NAME),
REFERENCING_TABLE =convert(varchar(40),c.FK_TABLE)
from
@table a
left join
@t b
on a.TABLE_NAME = b.TABLE_NAME
left join
@rs c
on a.TABLE_NAME = c.PK_TABLE
order by
a.TABLE_NAME,
c.FK_TABLE
print 'Tables and Tables Referenced'
print ''
select
b.REF_LEVEL,
TABLE_NAME = convert(varchar(40),a.TABLE_NAME),
TABLE_REFERENCED =convert(varchar(40),c.PK_TABLE)
from
@table a
left join
@t b
on a.TABLE_NAME = b.TABLE_NAME
left join
@rs c
on a.TABLE_NAME = c.FK_TABLE
order by
a.TABLE_NAME,
c.PK_TABLE
-- End of Script
Results from Northwind database:
Load tables for database Northwind
(13 row(s) affected)
Load PK/FK references
(13 row(s) affected)
Make copy of PK/FK references
(13 row(s) affected)
Load un-referenced tables as level 0
(0 row(s) affected)
Remove self references
(1 row(s) affected)
Delete lower level references
(0 row(s) affected)
Load level 1 tables
(7 row(s) affected)
Delete lower level references
(9 row(s) affected)
Load level 2 tables
(4 row(s) affected)
Delete lower level references
(3 row(s) affected)
Load level 3 tables
(2 row(s) affected)
Done loading table levels
Count of Tables by level
REF_LEVEL TABLE_COUNT
----------- -----------
1 7
2 4
3 2
(3 row(s) affected)
Tables in order by level and table name
Note: Null REF_LEVEL nay indicate possible circular reference
REF_LEVEL TABLE_NAME
----------- ----------------------------------------
1 dbo.Categories
1 dbo.CustomerDemographics
1 dbo.Customers
1 dbo.Employees
1 dbo.Region
1 dbo.Shippers
1 dbo.Suppliers
2 dbo.CustomerCustomerDemo
2 dbo.Orders
2 dbo.Products
2 dbo.Territories
3 dbo.EmployeeTerritories
3 dbo.Order Details
(13 row(s) affected)
Tables and Referencing Tables
REF_LEVEL TABLE_NAME REFERENCING_TABLE
----------- ---------------------------------------- ----------------------------------------
1 dbo.Categories dbo.Products
2 dbo.CustomerCustomerDemo NULL
1 dbo.CustomerDemographics dbo.CustomerCustomerDemo
1 dbo.Customers dbo.CustomerCustomerDemo
1 dbo.Customers dbo.Orders
1 dbo.Employees dbo.Employees
1 dbo.Employees dbo.EmployeeTerritories
1 dbo.Employees dbo.Orders
3 dbo.EmployeeTerritories NULL
3 dbo.Order Details NULL
2 dbo.Orders dbo.Order Details
2 dbo.Products dbo.Order Details
1 dbo.Region dbo.Territories
1 dbo.Shippers dbo.Orders
1 dbo.Suppliers dbo.Products
2 dbo.Territories dbo.EmployeeTerritories
(16 row(s) affected)
Tables and Tables Referenced
REF_LEVEL TABLE_NAME TABLE_REFERENCED
----------- ---------------------------------------- ----------------------------------------
1 dbo.Categories NULL
2 dbo.CustomerCustomerDemo dbo.CustomerDemographics
2 dbo.CustomerCustomerDemo dbo.Customers
1 dbo.CustomerDemographics NULL
1 dbo.Customers NULL
1 dbo.Employees dbo.Employees
3 dbo.EmployeeTerritories dbo.Employees
3 dbo.EmployeeTerritories dbo.Territories
3 dbo.Order Details dbo.Orders
3 dbo.Order Details dbo.Products
2 dbo.Orders dbo.Customers
2 dbo.Orders dbo.Employees
2 dbo.Orders dbo.Shippers
2 dbo.Products dbo.Categories
2 dbo.Products dbo.Suppliers
1 dbo.Region NULL
1 dbo.Shippers NULL
1 dbo.Suppliers NULL
2 dbo.Territories dbo.Region
(19 row(s) affected)
CODO ERGO SUM
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Jul 21, 2015
I would like to create a function that will replace a string using a reference table
I have a table : reference
ID String ReplaceWith
1 ≈ &
2 < <
3 > >
If I pass a string into a function, function needs to replace a string with replace with string column in reference table
For example, if I pass a string : car $ap; fjld
The function should return car & fjld
How can i create a function like this so that i can call it in Stored procedure....
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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 23, 2015
I am having trouble trying to find the max of 2 columns in one table. I've tried using a common table expression and a subquery, but can't seem to get the correct results. I want to get the max from refnum, then the max "number" associated with that max refnum along with the date and decision
Table
IDCustomerRefnumnumberdate decision
16511114/17/2015Approved
16521125/1/2015Declined
16531216/10/2015Approved
16542116/15/2015Tentative
Expected
Customer 1 had a max of refnum of 2 and 1st one on number
IDCustomerRefnumnumberdate decision
16531216/10/2015Approved
16542116/15/2015Tentative
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Jun 11, 2015
Someone ran an update statement multiple times so their are multiple entries in the table. What is the quickest way to track down the multiple entries? I would only want to see where timein and timeoff exist in the table multiple times for the same id. So this would be a duplicate
EntryID -- ID -- timein -- timeoff
1487 11 2015-05-05 16:33:23 2015-05-05 18:45:26
1623 11 2015-05-05 16:33:23 2015-05-05 18:45:26
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Nov 6, 2015
Is there a way to figure out if a table is partitioned by month/day in SQL.
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May 29, 2015
I have a SQL text column from SP_who2 in table #SqlStatement:
like 1row shown below :
"update Panel set PanelValue=7286 where PanelFirmwareID=4 and PanelSettingID=9004000"
I want to find what table and column names are in the text ..
I tried like below ..
Select B.Statement from #sp_who2 A
LEFT JOIN #SqlStatement B ON A.spid = B.spid
where B.Statement IN (
SELECT T.name, C.name FROM sys.tables T
JOIN sys.columns C
ON T.object_id=C.object_id
WHERE T.type='U'
)
Something like this : find the column names and tables name
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Nov 16, 2015
I usually go for the largest datafile and then query in-there...But now I need to automate it for several instances... I need to be able with one script quickly retrieve the top 5 largest tables for the entire instance,not by database...
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Aug 27, 2015
I need to find the missing months in a table for the earliest and latest start dates per ID_No. As an example:
create table #InputTable (ID_No int ,OccurMonth datetime)
insert into #InputTable (ID_No,OccurMonth)
select 10, '2007-11-01' Union all
select 10, '2007-12-01' Union all
select 10, '2008-01-01' Union all
select 20, '2009-01-01' Union all
select 20, '2009-02-01' Union all
select 20, '2009-04-01' Union all
select 30, '2010-05-01' Union all
select 30, '2010-08-01' Union all
select 30, '2010-09-01' Union all
select 40, '2008-03-01'
For the above table, the answer should be:
ID_No OccurMonth
----- ----------
20 2009-02-01
30 2010-06-01
30 2010-07-01
1) don't include an ID column,
2) don't use the start date/end dates in the data or
3) use cursors, which are forbidden in my environment.
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Nov 16, 2015
For our ETL process, we maintain a TransformationList table that has the source view and the destination table. Data is copied from the view into the table (INSERT INTO). I am trying to find column names in the Views that are not column names in the associated Table.
In the below example, want to end up with three records:
1, View1, Column4
2, View2, Column4
2, View2, Column5
I have it almost working, except that there is a table, ChangeColPrefix table, that is used by the ETL process to change some of the view's column name prefixes. Some of the source views have column names with prefixes that do not match the destination table column names. Say view SouthBase has all the column names prefixed with SB - like SBAcct, SBName. And the Destination table of Area District has ADAcct, ADName. There would be a row in the ChangeColPrefix for SouthBase, SB, AD, 1, 2 that would be used by the ETL process to create the INSERT INTO Area District From SouthBase.
I need to use this ChangeColPreifx to find my unmatching columns between my source views and destination tables. With out that table SBAcct and SBName from SouthBase will not appear to match the columns of ADAcct and ADName, but they do match.
I want to end up with these three records as non-matching:
View1, Column4
View2, Column4
View2, Column5
View1 has Salumn2 and View2 has Salumn5, and they must be changed to Column2 and Column5 as per the ChangeColPrefix table before running the Select from INFORMATION_SCHEMA.COLUMNS EXCEPT Select from INFORMATION_SCHEMA.COLUMNS looking for unmatched columns.
/***** Set Up Test Data *****/
-- Create 2 test views
IF EXISTS(SELECT * FROM sys.views WHERE object_id = OBJECT_ID(N'[dbo].[View1]'))
DROP VIEW dbo.[View1]
GO
CREATE VIEW View1
AS SELECT '1' AS Column1 , '2' AS Salumn2 , '4' AS Column4;
[Code] ....
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May 8, 2006
Given a table A, I need to find all the tables that are in PK-FK with A and the columns in the reference. I can get the tables that have the FK relation through sysreferences or sysconstraints or sysforeignkeys but I have not been able to find out how to identify the specific column that is in the relation. Any one has any idea?
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Jun 12, 2006
How can I list the stored procedures and user-defined functions that reference a given column? I could search ROUTINE_DEFINITION in INFORMATION_SCHEMA.ROUTINES for '%MyColumnName%' but MyColumnName is not always unique.
Thanks.
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Jul 28, 2015
I have 2 tables, OBJECTS and LINKS both have common field(OBJECT_ID).
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Jul 20, 2005
I currently have two SQL server books for MS SQL Server 2000. One is aprep book for the 70-229 exam, the other is a Wrox book: "professionalSQL Server 2000 Programming."I'm looking for more T-SQL books that give me PRACTICAL tips onwriting advanced queries. What book do you refer to? Please post them.
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Oct 22, 2015
I am trying to eliminate a scalar function by rewriting a view. I currently have a structure similar to the following:
With FirstQuery as (SELECT Trial, SBOI, TBOI,
FROM TU
WHERE SBOI Between 22000 and 22999 and TBOI < 10000),
strt as (SELECT TOP 1 TimeOfEvent, Trial, SBOI, TBOI
From TU ORDER BY TimeOfEvent),
[Code] ....
What I trying to do is for the Trial, SBOI, and TBOI in FirstQuery, find the Start Time and Stop Time. TimeOfEvent is an integer in milliseconds. Say I have the following data:
TrialID SBOI TBOI TimeOfEvent
A 22000 5000 5
A 22000 5000 10
B 22000 5000 8
B 22000 5000 15
So the DISTINCT output would be:
Trial SBOI TBOI StartTime StopTime
A 22000 5000 5 10
B 22000 5000 8 15
The problem I am having is that strt is selecting the smallest time period. It doesn't seem to care what the current record in cte is. I thought that by using my joins, it would make it select smallest TimeOfEvent for the Trial, SBOI, and TBOI that are selected in cte. Obviously that is not the case. So, I was trying to add a WHERE to the strt Select Statement such as
WHERE TrialID = FirstQuery.TrialID and SBOI = FirstQuery.SBOI and TBOI = FirstQuery.TBOI but it isn't working either.
What can I do?
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Jan 6, 2007
Hey!
I am creating a kind of file browser for an application of mine. The principle is quite straight forward. It consists of folders and files. Each folder can contain other folders and files and so on. The twitch however is that i need a special root entity called site. The site is very much alike a folder but has some other properties. The site can contain folders and files.
To achieve this ive created te following tables (truncated for clearity):
#################### Sites ##################### ID [Int] ## ... ####################
#################### Folders ##################### ID [Int] ## SiteID [Int] ## FolderID [Int] ## ... ####################
#################### Files ##################### ID [Int] ## SiteID [Int] ## FolderID [Int] ## ... ####################
Both the folder table and the files table have a check constraint that ensures that either SiteID or FolderID is NULL. They WILL be part of EITHER a folder or a site. Not both!
Then i set up the foreign constraints as follows:Folders.FolderD -> Folders.IDFolders.SiteID -> Sites.IDFiles.FolderID -> Folders.IDFiles.SiteID -> Sites.ID
All constraints have cascade on delete and therefore the last of them cannot be created as it would be circular. (Wich it wont in this case, but theoreticaly its possible)
Iknow WHY this is rendering an error. But how can i work around it? Or would you suggest another design of the tables?
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Sep 18, 2006
Hello,
I have a package, which calls a sub package to poulate a table depending on a flag in the database (using an ExecuteSQL task to return flagged table name).
The inner package populates some tables, and calculates what needs to be processed next. It sets the next flag.
However, I can't make this work in the control flow, as once the Execute package has completed, I need to start again from the top, as the flag will have changed to the next item.
I hope that I have explained this well enough.
I really need this to work, but SSIS will not let me create a circular dependency. Does anyone know a way around this, or can offer me an alternative solution??
I am getting desperate, so any suggestions will be welcome
Many thanks
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Sep 20, 2006
Hi ,
I have two tables test1 and test2 .
Schema of table test1 is
A pk(primary key)
B
C fk (foreign key)
Schema of table test2 is
A
B pk
C fk
Table test1 and test2 have following relationships
1) test1.a pk -> test2.c fk
2) test2.b pk -> test1.c fk
Hence the two tables have circular relationship.
My question is when i query all rows of test1 based on a specific value of test1.a, can we get multiple rows in any case.
I am using following query to retrive the records:
select test1.* from A as A
inner join B on A.a=B.c
inner join A as AA on B.b= AA.c
where AA.a ='100'
Please let me know whether any duplicate row case is possible and if yes, please give any example.
Regards
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Oct 7, 2015
I have a requirement of table partitioning. we have 10 years of data on a table which is 30 billion up rows on 2005 server we are upgrading it to 2014. we have to keep 7 years of data. there is no keys on table or date column. since its a huge amount of data and many users its slow down the process speed. we are thinking to do partition on 7 years for Quarterly based. but as i said there is no date column on table we have to use reference table to get date. is there a way i can do the partitioning with out adding date column on table? also does partition will make query faster?
I have think three ways to do it.
1. leave as it is.
2. 7 years partition on one server
3. 3 years partition on server1 and 4 years partition on server2 (for 4 years is snapshot better?)
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May 4, 2006
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Feb 14, 2007
I have a problem that looks like it has not been discussed before inthese groups.I have a simple SQLAgent job that runs sp_who (could be anything, butlet's just say sp_who for this example). I have set the jobstep towrite to an output file "T:out.txt". If the job is owned by anadmin, it runs fine and writes the output file. If it is owned by anon-admin user, it gets the following error msg:Warning: cannot write logfile t:out.txt. Error 1059 : Circularservice dependency was specified. The step failed.I know about setting up the SQLAgent CMDExec proxy account, and havedone that. In fact, both SQLAgent and the SQLAgent cmdexec proxy usethe same domain account, which is in the administrator group of thelocal server. So, I know that security is not the issue.When a simple job runs and writes to an output file, what service orservice group could it be trying to start or modify? I looked throughthe list of Services, and could not find any circular dependencies.Is there a utility to detect this? Why would running under onecontext (as an admin) be ok while the other context (non-admin on SQL,but using the same admin domain service account) fails?Thanks in advance for any info you might have.
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Jun 12, 2008
I have 3 database say
db1
db2
db3
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Nov 8, 2015
i have a table below like :
Id , Request
int nvarchar(100)
and in Request field i put below data :
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now i need to a query that i can find records that exists <F3> and if exists , remove just the <F3> tag
below like :
1 <request><F6></F6></request> 2 <request><F5>353535</F5><F6></F6></request>3 <request><F6></F6></request>
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Sep 10, 2014
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Error system.NullReferenceException: Object refrence not set to an instance reference.
In PreExecute section
TextReader = new system.io.streamreader(" file name")
In the CreateNewOutputRows:
dim nextLine as string
nextLine = textReader.ReadLine
[code]...
is there something which i did not install or what can be the error?
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Oct 27, 2015
I have a table that has Serial numbers and MSDSID numbers and many other fields in the table.
What I need to figure out is if the table contains a distinct Serial number with different MSDSIDs.
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001 20 1/1/2015 5
002 21 1/1/2015 3
001 22 2/1/2015 1
003 21 3/1/2015 1
004 23 1/15/2015 5
003 22 1/20/2015 6
004 23 2/21/2015 5
002 21 4/25/2015 4
I would like the results to show:
Serial Count
001 2 the count is 2 because Serial 001 has an MSDSID of 20 and 22
002 1 the count is 1 because Serial 002 only has MSDSID 21
003 2 the count is 2 because Serial 003 has an MSDSID of 21 and 22
004 1 the count is 1 because Serial 002 only has MSDSID 23
It would be even better if the results just showed where the count is greater than 1.
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Jul 19, 2015
I want to send an email twice a day, from database. So I have planned to make a storedproce which will be called by a job (which will select some record from one table and put it in other table based on a flag) but I want to run it in a transaction so that if email is send successfully then only it should commit else it should rollback.
How can i find that "Mail queued" now i should commit.
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Oct 20, 2015
I have looked around quite a bit, but mostly what I have found is looking to see if a table is used or if a column is in a stored procedure and honestly most of what I have seen does not work.
I want to reduce our nightly import by removing any columns that are not being used. We insert into our staging tables, Stage1 for example. And say Stage1 has column1 and column2. If those columns are not being used, then I want to remove them from Stage1. The only catch is that every Stage1 table has a v_Stage1. v_Stage1 should have all the columns from Stage1, but doesn't always. So I need to know what columns from Stage1 are used somewhere other than v_Stage1 and what columns from v_Stage1 are not used.
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Jun 12, 2015
create table example (f varchar(10))
insert into example values('fd')
insert into example values('fd')
insert into example values('fd1')
insert into example values('fd23')
insert into example values('fda23')
insert into example values('fd23g')
output:-
[A-Z][A-Z]
[A-Z][A-Z]
[A-Z][A-Z][0-9]
[A-Z][A-Z][0-9][0-9]
[A-Z][A-Z][A-Z][0-9][0-9]
[A-Z][A-Z][0-9][0-9][A-Z]
How to write SQl query to fetch this type of output.
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