Checking If Information Exists Before Copy
Apr 1, 2007
I am getting an error between the IF THEN Else statement. The copy works after the THEN! I need some help!
Ernie
I have two tables with script in a view. 1. newusers 2. blacklist I want to compare that "PresentEmail, RemoteComputer,Email" thats in newuser table is not in blacklists, and if this is true, then copy from newuser (the record not on blacklist) to blacklist using a where statement for second condition.
IF
(NOT EXISTS
(SELECT *
FROM newusers AS d
WHERE ISNULL(PresentEmail, 'NULL') IS BadEmail))
THEN
Insert into blacklist (BadNewEmail, BadIpAddress, BadEmail)
Select NewEmail, RemoteComputerName, PresentEmail
From newusers
Where Account_Active = 'Spammer'
Else
GO
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Jun 18, 2008
I know there is a way to determine if a file exists using T-SQL, but I can't seem to find a way to determine if a directory exists. I need to be able to determine this so I can delete the directory if it already exists before I run other queries.
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Mar 18, 2008
Greetings all.
How can I check for file exitence in a specified folder using TSQL?
I can think of a couple of ways to do this so any feedback would be appreciated.
Load the contents of a folder in to a temporay table and check the table for file name. I can do this with something like:
insert into myFiles
exec master..xp_cmdshell 'dir /B /OND filePath*.txt'
Or maybe use OLE Automation Sproc? But I am not sure which method I should use.
Please advise.
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Feb 14, 2007
I can't seem to get this work. I'm using SQL2005
I want to check if a record exists before entering it. I just can't figure out how to check it before hand.
Thanks in advance. Protected Sub BTNCreateProdIDandName_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles BTNCreateProdIDandName.Click
' Define data objects
Dim conn As SqlConnection
Dim comm As SqlCommand
' Reads the connection string from Web.config
Dim connectionString As String = ConfigurationManager.ConnectionStrings("HbAdminMaintenance").ConnectionString
' Initialize connection
conn = New SqlConnection(connectionString)
' Check to see if the record exists
If
comm = New SqlCommand("EXISTS (SELECT (BuilderID, OptionNO FROM optionlist WHERE (BuilderID = @BuilderID) AND (OptionNO = @OptionNO)", conn)
Then
'if the record is exists display this message.
LBerror.Text = "This item already exists in your Option List."
Else
'If the record does not exist, add it. FYI - This part works fine by itself.
comm = New SqlCommand("INSERT INTO [OptionList] ([BuilderID], [OptionNO], [OptionName]) VALUES (@BuilderID, @OptionNO, @OptionName)", conn)
comm.Parameters.Add("@BuilderID", System.Data.SqlDbType.Int)
comm.Parameters("@BuilderID").Value = LBBuilderID.Text
comm.Parameters.Add("@OptionNO", System.Data.SqlDbType.NVarChar)
comm.Parameters("@OptionNO").Value = DDLProdID.SelectedItem.Value
comm.Parameters.Add("@OptionName", System.Data.SqlDbType.NVarChar)
comm.Parameters("@OptionName").Value = DDLProdname.SelectedItem.Value
LBerror.Text = DDLProdname.SelectedItem.Value & " was added to your Option List."
Try
'open connection
conn.Open()
'execute
comm.ExecuteNonQuery()
Catch
'Display error message
LBerror.Text = "There was an error adding this Option. Please try again."
Finally
'close connection
conn.Close()
End Try
End If
End Sub
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Apr 22, 2006
I would like to be able to check if a certain entry exists in a SQL table. Ideally, the output would be a boolean so I can use it in an IF statement which would tell it what to do depending on whether or not the entry exists. Thanks for anyone that helps. :)
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Sep 19, 2007
I've got two tables, one containing a list of company names(approx 10,000 records), the other containing a list of company employees (approx 30,000 records) joined by the CompanyID column.
I have a third table (approx 700 records) containing new employees to be added to the employee table. Each record in this table has the employees details plus the name of their company.
I want to write a query that will check each row in the third table to see if
a) the employee exists in the Employees table
b) the company exists in the Companies table and
c) the employee is listed under the correct company
The query should also handle any combination of the above. So if the company doesn't exist but the employee does, create the company on the companies table and update the appropriate record on the employees table with the new CompanyID etc. etc.
Oh, forgot to mention. The company names in the third table won't be exactly the same as the ones in the Company table so will need to use CharIndex.
Anybody got any ideas?
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Jan 10, 2014
I'm trying to check which price grids are in use using the price grid_id, and seeing whether this grid_id exists in another query that checks all active contracts. If the grid_id is present (active) I want to return 'Yes', if not I want it to return 'No'.
There are 385 price grids, but my query is only returning the 315 that are active, and ignoring any that are not used. My code is below, how I can see all the records whether Yes or No:
Select distinct
pg.grid_id [Price Grid],
pg.grid_name [Grid Name],
case when exists
(Select
c.grid_id from
customers c
inner join deltickhdr dh on dh.acct = c.custnum and dh.stage <5
where
c.type = 'C' and
dh.dticket is not null) then 'Yes' else 'No' end [Active]
From gridhdr pg inner join customers c on c.grid_id = pg.grid_id
Order by pg.grid_id
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Apr 30, 2008
I am checking to see if the source record is available in the target table using a lookup transformation and if not found i have to insert this record.
I have connected the error flow of the lookup transformation to the target. I am acheiving expected results, but is this the best practise? I have not connected to the green arrow to any task.
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Oct 27, 2005
I'm trying to put scripts to create our stored procedures under version control.
However I don't want these scripts to be run if the stored procedure already exists (we'll be using update scripts to alter existing stored procedure I think).
Anyway I tried :
Code:
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
/****** Object: Stored Procedure dbo.getEnglandHotelsByATOPResort Script Date: 26/10/2005 10:40:01 ******/
if NOT EXISTS (SELECT object_id('procedureName','p'))
CREATE PROCEDURE [dbo].[procedureName]
@location char(2)
AS
...Procedure...
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
I know that the if NOT EXISTS ... part works as doing the following returns the expected result :
Code:
IF NOT EXISTS (SELECT object_id('procedureName','p'))
SELECT 'FALSE'
ELSE
SELECT 'TRUE'
However when trying to do this before the CREATE PROCEDURE I get :
Server: Msg 156, Level 15, State 1, Line 4
Incorrect syntax near the keyword 'PROCEDURE'.
Server: Msg 137, Level 15, State 1, Line 12
Must declare the variable '@location'.
Any ideas how to do this?
-D
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Jan 6, 2015
I have a table called as Events and below are its columns
ID int
EventFromDate datetime
EventToDate datetime
EventDesc nvarchar
IsHoliday bit
This is a master table where the admin would enter the Events/Holidays for the entire year.
The data would be as below:
IDEventFromdateEventTodateEventDesc isHoliday
126-01-201526-01-2015RepublicdayYes
230-01-201531-01-2015TeamOutingNo
301-05-201501-05-2015Labour day Yes
Now, suppose a employee applies leave on 26/01/2015 to 26/01/2015 then it should not insert into table and return a value "Not updated"
How to handle the scenario if a employee applies leave between the range 23/01/2015 to 27/01/2015, since 26/01/2015 is a holiday in between. how the data can still be inserted excluding 26/01/2015
Can we exclude a non-working day or a sunday.
Leavedetails table to insert leaves applied by employee is as follows
LeaveDetailID int
LeaveTypeId int
FromDate datetime
EndDate datetime
Remarks nvarchar
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Feb 9, 2007
I've decided to post this as a sticky given the frequency this question is asked.
For those of you wishing to build a package that determines if a source row exists in the destination and if so update it else insert it, this link is for you.
http://blogs.conchango.com/jamiethomson/archive/2006/09/12/SSIS_3A00_-Checking-if-a-row-exists-and-if-it-does_2C00_-has-it-changed.aspx
Thanks Jamie!
If you want to do a similar concept to Jamie's blog post above, but with the Konesan's Checksum Transformation to quickly compare MANY fields, you can visit here:
http://www.ssistalk.com/2007/03/09/ssis-using-a-checksum-to-determine-if-a-row-has-changed/
Phil
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Aug 21, 2007
I have 1+ CSV files (using a foreach loop) which I'm doing a lot of transform work on and then inserting into a SQL database table.
Each CSV file usually contains about 2 days worth of data (contains date stamps) - somewhere in the region of 60k records per day.
The destination table currently contains 3 million+ rows and will get bigger.
I need to make sure that before inserting into the destination table, the data doesn't already exist.
I've read the following article: http://www.sqlis.com/311.aspx
While the lookup method works, it takes ages and eats up memory as it caches the 3m+ records before running for each CSV. Obviously this will only get worse as the table grows in size.
To make things a little more efficient what I'd like to do, is first derive the dates I'm dealing with in the current file - essentially storing the max(date) and min(date) in variables. Then in the lookup SQL use those vars, to reduce the amount of data that needs to be brought into the transformation to check against before inserting into the destination table.
Lookup SQL eg. SELECT * FROM MyTable WHERE Date BETWEEN varMinDate AND varMaxDate.
Ideally I'd use an aggregate transformation and then use the subsequent output from that either in the lookup query or store the output in vars, but I don't think you can do that and I get the feeling I'm approaching this with the wrong mindset.
Any thoughts would be great!
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Feb 22, 2005
Hi all,
While cleaning up some code, I ran across the following statement in a stored proc - the purpose of which is to determine if a table exists in the local database: SELECT * FROM dbo.sysobjects where id = object_id(N'[dbo].[XML_PRINTDATE]') and OBJECTPROPERTY(id, N'IsUserTable') = 1of course I removed it from the IF just for testing purposes, but my quandry is this...
Why chose that select (converting table name to object ID) rather than just doing THIS:SELECT * FROM dbo.sysobjects where name = N'XML_PRINTDATE' and OBJECTPROPERTY(id, N'IsUserTable') = 1
I first thought it was to gain access to the "id" column value (and that may yet be the purpose of it), but the second code seems to work just peachy (I assume because the id column is present in the sysobjects table itself).
A follow-on question is this:
When I try to do the same check from another server (i.e.SELECT * FROM APRECEIVE1.DailyProd.dbo.sysobjects where name = N'XML_PRINTDATE' and OBJECTPROPERTY(id, N'IsUserTable') = 1) it of course fails because OBJECTPROPERTY only looks for the id on the local database.
So, do I CARE if it is a user table? (I am reasonably sure it is, of course) and if so, is there a way to check on the remote server for the object type?
Bottom line is I Think I can just simplify things and check for the object name on the remote server, but just don't want to take away any "warm fuzzy feeling" generated by the original stored proc, if such a warm fuzzy is of any benefit (though don't get me started on the relativity of warm fuzzies, I wrote my Thesis on that ;) )
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Aug 3, 2007
Thanks for your time:
Background: After Insert Trigger runs a sproc that inserts values into another table IF items on the form were
populated. THose all work great, but last scenario wont work: Creating a row insert based on Checking that all 22 other items from the prior insert (values of i.columns) were NULL:
IF EXISTS(select DISTINCT i.notes, i.M_Prior, i.M_Worksheet, ...
from inserted i
WHERE i.notes IS NOT NULL AND i.M_Prior = NULL AND i.M_Worksheet = NULL AND...)
BEGIN
Insert into dbo.Items2Fix ...
From inserted i
END
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Oct 1, 2001
Hello,
I connect from SQL Server on Windows 2000 to Progress
Database on UNIX.
The database name of SQL Server is cstarsql and the
name is cstarint on UNIX.
I would like to schedule to copy data from
cstarint(Progress) to cstarsql(SQLServer). I did for
one time, but I want to control if the data has
already copied or not. If not, it will copy.
In DTS Query Builder to copy from Progress to SQL
Server,
SELECT * from calls WHERE call_date = TODAY
The name of table of calls is the same for both
database.The above calls is cstarint(Progress
Database)
This command is enough for one time. But I need to
control if the record has already copied.
In SQL Server, I control if the record is available or
not with @@FETCH_STATUS .
Now I would like to mix two queries, but I couldn't.
Can anybody do this?
DECLARE calls_cursor SCROLL CURSOR
FOR SELECT * FROM calls
WHERE call_date = TODAY
OPEN calls_cursor
-- Perform the first fetch.
FETCH NEXT FROM calls_cursor
-- Check @@FETCH_STATUS to see if there are any more
rows to fetch.
WHILE @@FETCH_STATUS = 0
BEGIN
-- This is executed as long as the previous fetch
succeeds.
FETCH NEXT FROM calls_cursor
END
CLOSE calls_cursor
DEALLOCATE calls_cursor
Alice
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Mar 21, 2006
This issue is so frustrating. I am hoping someone knows the answer to this specific question.
Why would sql server insist that a database does not exist even though it obviously does exist?
I get the error message: Database 'tf_1' does not exist.
Why would it say it does not exist when it is clearly viewable in SMSS. It attached without problem. I can view the tables in the database. I know it's there; SMSS knows it's there; the VB app I wrote knows it's there. But, when I try to run a query to copy a table from one database to another, sql server says it doesn't exist! What gives?
Yes, I asked this question before but nobody answered. The problem is back!
This is the sql statement in vb:
sql = "SELECT [DateTime], [Open], [High], [Low], [Close], [Volume] INTO "
sql = sql & DestDbName & ".dbo." & TableName
sql = sql & " FROM " & TableName & ";"
The connection string:
strDbConn = "Provider=SQLNCLI;Integrated Security=SSPI;" & _
"Persist Security Info=False;" & _
"AttachDBFileName=" & DbPath
is used to open a connection to the source database.
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May 23, 2007
Hello,
I have some troubles with IBM WebSphere Application Server using MS SQL Server 2005 JDBC Driver. I always get the error e.g.
java.lang.SecurityException: class "com.microsoft.sqlserver.jdbc.SQLServerDatabaseMetaData"'s signer information does not match signer information of other classes in the same package
I found this Feedback but it seems to be closed.
A temporary solution for me was to delete the meta-inf directory of the JAR-File, but that can't be the solution.
Can anyone help me with this problem?
Simon
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May 11, 2006
Hi,
I set up DB mirror between a primary (SQL1) and a mirror (SQL2); no witness. I have a problem when I issue command:
alter database DBmirrorTest
Set Partner = N'TCP://SQL2.mycom.com:5022';
go
The error message is:
The remote copy of database "DBmirrorTest" has not been rolled forward to a point in time that is encompassed in the local copy of the database log.
I have the steps below prior to the command. (Note that both servers' service accounts use the same domain account. The domain account I login to do db mirror setup is a member of the local admin group.)
1. backup database DBmirrorTest on SQL1
2. backup database log
3. copy db and log backup files to SQL2
4. restore db with norecovery
5. restore log with norecovery
6. create endpoints on both SQL1 and SQL2
CREATE ENDPOINT [Mirroring]
STATE=STARTED
AS TCP (LISTENER_PORT = 5022, LISTENER_IP = ALL)
FOR DATA_MIRRORING (ROLE = PARTNER)
7. enable mirror on mirror server SQL2
:connect SQL2
alter database DBmirrorTest
Set Partner = N'TCP://SQL1.mycom.com:5022';
go
8. Enable mirror on primary server SQL1
:connect SQL1
alter database DBmirrorTest
Set Partner = N'TCP://SQL2.mycom.com:5022';
go
This is where I got the error.
The remote copy of database "DBmirrorTest" has not been rolled forward to a point in time that is encompassed in the local copy
Thanks for any help,
KT
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Feb 28, 2008
Hi!
I did:
alter database mydb set single_user with rollback immediate;
exec sp_detach_db @dbname='mydb', @keepfulltextindexfile='true';
then I tried to copy files to new location on other drives, same server but got
>>Cannot copy <myfile>: Access is denied
Make sure the disk is not full or write-protected and that the file is not currently in use<<
I also tried rename of file without success.
I also tried with db service stoppet (not preferred) without success.
How to find out, which process locks the files?
Best regards
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Sep 20, 2006
Hi,
This is on Sybase but I'm guessing that the same situation would happen on SQL Server. (Please confirm if you know).
I'm looking at these new databases and I'm seeing code similar to this all over the place:
if not exists (select 1 from dbo.t1 where f1 = @p1)
begin
select @errno = @errno | 1
end
There's a unique clustered in dex on t1.f1.
The execution plan shows this for this statement:
FROM TABLE
dbo.t1
EXISTS TABLE : nested iteration.
Table Scan.
Forward scan.
Positioning at start of table.
It's not using my index!!!!!
It seems to be the case with EXISTS statements. Can anybody confirm?
I also hinted to use the index but it still didn't use it.
If the existence check really doesn't use the index, what's a good code alternative to this check?
I did this and it's working great but I wonder if there's a better alternative. I don't really like doing the SET ROWCOUNT 1 and then SET ROWCOUNT 0 thing. SELECT TOP 1 won't work on Sybase, :-(.
SET ROWCOUNT 1
SELECT @cnt = (SELECT 1 FROM dbo.t1 (index ix01)
WHERE f1 = @p1
)
SET ROWCOUNT 0
Appreciate your help.
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Aug 30, 2005
How do I transfer/copy the stored procedures in my Test DB to my LIVE DB? IT won't allow me to export keeps giving me an error.
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Nov 4, 2006
Hello,
if i have a given database (a model) and i want to copy this database in the same database instance. Is it ok to copy the mdf and ldf file and attach the files with a new database name in the same instance.
Or is the datebase name part of the .mdf file?
Regards
Markus
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Jan 23, 2012
I am attempting to use the copy wizard to copy databases from SQL Server 2005 to SQL Server 2008 R2 w/ FP1.
The copy fails with a login failure to SQL Server 2005. I have a user id & password under Windows for both servers. I have a user id and password under SQL security with the called for admin security rights.
The 2005 server has two instances, 20 databases, two dozen maintenance plans, and over a hundred users. I really would like to use the utility so I don't have to recreate everything manually.
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Feb 1, 2007
Hi~,
Before implementing memory based bulk copy insert with IRowsetFastLoad interface of SQL Server 2005 OLE DB provider, I want to know some considerations.
- performance : compared with T-SQL's "BULK INSERT ..." and bcp utility
- SQL Server's resource usage : when running memory based bulk copy, server resource's influence
- server side action(behavior) : when server is busy, delayed-update means IRowsetFastLoad::Commit(true) method can insert right after?
- row-count : The rowcount limitation can be inserted by IRowsetFastLoad::InsertRow() method before IRowsetFastLoad::Commit
- any other guide lines
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Feb 10, 2004
Hi,
I want to assign a list columns to be the PK on a table. I don't know what this list of columns would be.How do I go about figuring that?
Sample Data
Col1...Col2...Col3..Col4
1...........2.......A......X
1...........2........B.....X
1...........2.......A......Y
As you can see Col1 & Col2 ONLY do not make up the PK. I need to include Col3 as well. My concern is I am not sure if I have a row like..
1...........2.......A......X reapeated lower down the order. So how do I figure the PK out?
Thanks
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Nov 1, 2006
Can someone show me some C# code for detecting if a SQL row exists or not? This seems like a very typical action and I cannot for the life of me find a tutorial online that explains this step. In my code I'm either going to INSERT or UPDATE a record. I tried sending a SELECT command through a ExecuteNonQuery, but only got -1 as a response. Apparently ExecuteNonQuery does not work with SELECT. I then saw that T-SQL has an EXISTS keyword, but I cannot see anyway to use that from within C#.So...can anyone share the typical code they use to identify if a row exists or not within a database. I guess I was execting there to be some method available to do this sort of thing.
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Aug 3, 2007
i want to check a value in 2 tables. the 1st table i want to check if the value exists and from the 2ed table i samething.
i came up with this but when it's doing the second if i get error on the page.
Dim ReturnVal As Integer
Dim ReturnVal2 As IntegerDim conn As SqlConnection = New SqlConnection(ConfigurationManager.ConnectionStrings("imacstestConnectionString").ConnectionString)
Dim cmd As SqlCommand = New SqlCommand("SELECT [ReportNumber] FROM [AppraisalSummaryBlue] WHERE ([ReportNumber] = @ReportNumber)", conn)
'To check if the # is registered.Dim cmd2 As SqlCommand = New SqlCommand("SELECT [ReportNumber] FROM [t_RegisterInfoTemp] WHERE ([ReportNumber] = @ReportNumber)", conn)
cmd.Parameters.AddWithValue("@ReportNumber", txtReport.Text)cmd2.Parameters.AddWithValue("@ReportNumber", txtReport.Text)
conn.Open()
ReturnVal = Convert.ToInt32(cmd.ExecuteScalar())
conn.Close()
'This checks if the # is correct.
If ReturnVal > 0 Then
'This checks if its registered with someone else.
conn.Open()
ReturnVal2 = Convert.ToInt32(cmd2.ExecuteScalar())
conn.Close()
If ReturnVal2 <> 0 ThenServer.Transfer("regccinfo.aspx")
Else
lblError.Text = "the # is registered with someone else."
End If
Else
lblError.Text = "the # does not exists."
txtReport.Focus()
End If
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Jan 5, 2005
Good morning everyone I am writing a windows forms application that will work similar to the windows messenger popup. I need this application to display a message to the user whenever a record is added to table in my DB. Any help would be appreciated in explaining how I can check the DB for new records.
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May 2, 2002
I've forgotten the character set that I've chosen when I was installing the SQL Server 7. Is there a way to check?
I'm currently using US English version of Windows NT4 and SQL7. But interestingly, all the data is in Japanes characters. It's actually for a Japanese website, and the front-end application is written in ASP. I remember reading somewhere that it is impossible to do certain type of sorting (by some particular order for the Japanese language) as it is limited by the choice of the language of the NT OS.
The type of sorting that I'm looking at is the grouping of 5-characters. One example is in http://www.forest.impress.co.jp/aiueo.html
Would this be possible with my current setup? Or would it help if I migrate over to Windows 2000? (I'd rather not move to Japanese NT4)
Your feedback and advice would be very much appreciated!
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Feb 20, 2003
Hi,
Just a brief question. I have a script which does a number of insert statements. What I would like to do is determine if the insert statements were all successful. Aside from checking @@ERROR after every insert, is there a way to check if all the insert statements completed successfully?
Thanks,
Jim
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Aug 5, 2004
I want to do a check to see if a number falls within a range specified by the user. Basically, they enter in a min and max value and I return a hit if a number falls inbetween.
I have having trouble with my SQL statement:
Code:
SELECT DISTINCT *
FROM Table
WHERE ( (0=0)
AND
(min.value <= Table.Value <= max.value) )
(This isn't my actual code, but just the logic)
It will return all the results everytime. Does anyone have any suggestions on what I could be missing here?
Thanks in advance!
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Jun 27, 2004
I have a question I hope someone can help me with.
My situation:
I have a single-step job in SQL Server, which runs a stored procedure, A. This stored procedure invokes another stored procedure, B. In B, one of the statements is a 'BACKUP DATABASE' command, and a database is backed up to a file.
The job is started by an application. Once started, the application then uses the SQL-DMO property CurrentRunStatus to periodically check the status of the job. When the property returns the value SQLDMOJobExecution_Idle (indicating the job has completed), the application code then continues processing, and attempts to access the .dat file produced by the 'BACKUP DATABASE' command.
My problem:
On occasion, the application will hit the problem where either the backup file cannot be located, or the file is still being locked by another process (Error=The process cannot access the file because it is being used by another process).
Is anyone able to shed some light on this?
I assume that the job will only return a completed status after:
(a) both A and B have completed execution, and
(b) the BACKUP operation has completed
Is it possible that even though SQL Server indicates the job has finished, that the BACKUP operation still hasn't completely ended?
Thanks for any help,
Andrew
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Oct 8, 2007
I have around 25 sql servers(sql server 2000) all on windows server 2003. i would like to know if anyone has a script that will poll all the servers and check to make sure the agent is running.
thanks for your help
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