Clearing All Records In A Table
Apr 21, 2004
Hi
I have two questions:
1. Is there a way to clear all records in a table from within a store procedure? (Instead of having to go into the table and manually selecting all rows and deleting them that way.)
2. I want to sort a list of records so that the only one left are the ones with just single words in. So I have used
WHERE SearchText LIKE '% %'
to remove the cells with spaces in, but I need to be able to remove the ones with punctuation too. Is there an easy way to do this?
Thanking you in advance.
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Jun 28, 2006
Hello, and sorry if this is really obvious.
Is there a way to wipe all data from a table, besides the obvious manual way?
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Apr 8, 2007
I have entered some temporary values in a table located in an SQL database, to test a project to see if it was working. Now I want to remove the values so that later, the program I have created will be capable of using the table for it's true purpose. However, when I try to delete the values located there, I receive an error message. How can I clear the table?
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Sep 13, 2006
Ok, I'm really new at this, but I am looking for a way to automatically insert new records into tables. I have one primary table with a primary key id that is automatically generated on insert and 3 other tables that have foreign keys pointing to the primary key. Is there a way to automatically create new records in the foreign tables that will have the new id? Would this be a job for a trigger, stored procedure? I admit I haven't studied up on those yet--I am learning things as I need them. Thanks.
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Aug 11, 2015
Table1 contains fields Groupid, UserName,Category, Dimension
Table2 contains fields Group, Name,Category, Dimension (Group and Name are not in Table1)
So basically I need to read the records in Table1 using Groupid and each time there is a Groupid then select records from Table2 where Table2.Category in (Select Catergory from Table1)
and Table2.Dimension in (Select Dimension from Table1)
In Table1 There might be 10 Groupid records all of which are different.
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Oct 21, 2015
I am trying to write a query that will retrieve all students of a particular class and also any rows in HomeworkLogLine if they exist (but return null if there is no row). I thought this should be a relatively simple LEFT join but I've tried every possible combination of joins but it's not working.
SELECT
Student.StudentSurname + ', ' + Student.StudentForename AS Fullname,
HomeworkLogLine.HomeworkLogLineTimestamp,
HomeworkLog.HomeworkLogDescription,
ROW_NUMBER() OVER (PARTITION BY HomeworkLogLine.HomeworkLogLineStudentID ORDER BY
[Code] ...
It's only returning two rows (the students where they have a row in the HomeworkLogLine table).
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Jul 20, 2005
I can't get my head around this:I want to select all IDs from table A that do not have a related record intable B according to some condition:Table A contains, say, Parents and table B contains Children. I want toselect all Parents that have no children called "Sally" (this is a noddyexample, reminds me of being at Uni again :) ).Any ideas?Thanks
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Mar 18, 2014
I have a situation where deleting old records is blocking updating latest records on highly transactional table and getting timeout errors from application.
In details, I have one table called Tran_table1 in OLTP database. This Tran_table1 is highly transactional table, it will receive data for insert/update continuously
While archiving 2 years old records from Tran_table1 into Tran_table1_archive in batches(using DELETE OUTPUT INTO clause), if there is any UPDATEs on Tran_table1,these updates are getting blocked and result is timeout errors in application.
Is there any SQL Server hints to avoid blocking ..
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Dec 3, 2014
I have a table with about half a million records, each representing a patient in my county.
Each record has a field (RRank) which basically sorts the patients as to how "unwell" they are according to a previously-applied algorithm. The most unwell patient has an RRank of 1, the next-most unwell has RRank=2 etc.
I have just deleted several hundred records (which relate to patients now deceased) from the table, thereby leaving gaps in the RRank sequence. I want to renumber the remaining recs to get rid of the gaps.
I can see what I want to accomplish by using ROW_NUMBER, thus:
SELECT ROW_NUMBER() Over (ORDER BY RRank) as RecNumber, RRank
FROM RPL
ORDER BY RRank
I see the numbers in the RecNumber column falling behind the RRank as I scan down the results
My question is: How to convert this into an UPDATE statement? I had hoped that I could do something like:
UPDATE RISC_PatientList_TEMP
SET RRank = ROW_NUMBER() Over (ORDER BY RRank);
but the system informs that window functions will only work on SELECT (which UPDATE isn't) or ORDER BY (which I can't legally add).
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Oct 7, 1999
We have a production sql server V6.5 sp5a (running on NT 4.0 sp3) that has a tempdb that is fulling up about every two weeks. (The log to tempdb is okay, it is not filling up). Tempdb is defined as 400 MB. I have been reading about "The two most common db errors"; 1) The db log ran out of space and 2) The db ran out of space. We are receiving "The db ran out of space." Once tempdb gets near full is there anyway to clear tempdb without rebooting the nt server? Is there a stored procedure that can be scheduled to free up tempdb?
My books tell me the tempdb is used for creating temporary tables or storing temporary information. For example, a temporary table in a stored procedure or sql may create a temporary work table as a result of a query with a 'group by' or 'order by' clause. If these tables are temporary why don't sql release them or free up the space used by tempdb?
Thanks in advance!
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Jul 5, 1999
We have a SQL Server 6.5 with SP5a installed and are having problems with the Transaction log not clearing every night when a scheduled backup takes place.
Is there anyway to debug this?
The Scheduled task that is run is
"DUMP DATABASE DBSALES TO DBSALESBK with INIT
DUMP TRANSACTION DBSALES WITH TRUNCATE_ONLY
DUMP DATABASE DISTRIBUTION TO DSBK WITH INIT
DUMP TRANSACTION DISTRIBUTION WITH TRUNCATE_ONLY"
I have also run on it DBCC Checktable(Syslogs) but it all seems fine. Any help would be appreciated.
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Oct 5, 1998
When I truncate the transaction log the log space available does not change?
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May 9, 2008
Hello!
I'd like to ask you what means the term "database clearing", if such a concept exists in the Database Theory.
Maybe this is not directly related to SQL Server but any help would be very appreciated. So please anybody who have an idea of what this could mean is welcome to reply here
Thank you very much in advance.
With best regards,
Sorin
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Feb 27, 2008
Hello All,
I am here again with a query.
In SQL SERVER 2000, there is a command DBCC OutputBuffer which returns the current output buffer in hexadecimal and ASCII format for the specified system process ID.
Is it so that everytime we execute a stored procedure the contents of the outputbuffer are automatically cleared so that the new contents are inserted into the outputbuffer ?
If it is not cleared then how can we clear this outputbuffer.
Thanks,
Kapadia Shalin P.
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Dec 3, 2007
Hi all,
Few clarification needed.
1. Actually when does the cache gets cleared in SQL Server ?
2. Is clearing the cache in production environment recommended ?
3. What is the main purpose of DBCC DROPCLEANBUFFERS & DBCC FREEPROCCACHE commands ?
Thanks ,
DBLearner
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Feb 21, 1999
Hello:
We have been testing a new vendor_purchased application and are now
running some month-end processes/jobs now. One of the processes that we
kicked off stopped when a 2gb tempdb filled up with only 5mb or so remaini
g. In reviewing what happened, I noticed that tempdb is in the process of
clearing itself out slowly when we restarted the process. The database has
80% of its disk space remaining and the transaction log has also 75%
remaining.
My questions are:
1) Although I don't think so, is there nay way of speeding up the process
of tempdb clearing out the data in it?
2) We will need to examine what sql code the vendor has used that caused
this to happen. Aside from group by and order by, if there are a lot of
'select into' code, what alternatives do we have?
Any information that can be provided will be fine. THanks in advance.
DAvid Spaisman
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Mar 5, 2007
Having issues with a table clearing out properly which is causing problems in the program.
By design there should only be one row in this table which updates with the most current record. However on this one system the table does not clear/update like it is supposed to, and instead starts adding multiple rows.
I have tried truncating the table but the problem does not resolve itself. Does anyone have any ideas as to why this might be happening?
Thanks!
Shawn
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Sep 21, 2007
Hi everyone,
I have a question that I believe should be simple to answer yet I cannot find the answer anywhere. I am trying to make it possible for my report to clear the input box whenever the report is run or when anything in a dropdown list is selected. The reason why I want this is because my report has a dropdown list that inputs date ranges for "quick" report info. The other option is to manually type in the begin and end date. If anyone could help me out with this I would be very grateful.
Thanks,
Roy
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Jan 15, 2008
I'm opening a large number of connections to a SQL server 2005 database using a SQL object based on the System.Data.SqlClient library. When I log out of the application, I call the ClearSQLConnectionPool method of the SQL object and this should clear the pool of these connections. This has worked in the past, but lately I have noticed some odd and very annoying behaviour.Very often I log out of the application and few, if any of the connections disappear. Just this morning I opened the application, logged out and all but one of the connections disappeared. Then I opened it again, logged out and none of the connections had gone. If I open the application again all of the past connections are still there plus the new ones.I know it works, its just very inconsistent. The problem may be with IIS, SQL or with library; I just can't tell which.Any ideas?Many thanks
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Sep 3, 2004
Is there any way to clear out the exception from a previous Try/Catch block if I am nesting another Try/Catch block within it. I am executing a SQL Command and based on the Error number coming back decide whether or not to execute various other Sql commands. Now the Outer exception seems to be taking precedence over the Inner try block, and even though the code is stepped through for the inner try block it is never executed due to the Parent Exception. Is there any way to clear the exception received from the outer Try block? Here is a snippet of code:
Try
Cmd = New SqlCommand(Sql, Con)
Cmd.ExecuteNonQuery()
Catch t as SqlException
if t.Number = "2601" then
sql_upd = "<Text>"
Try
Cmd_upd = New SqlCommand(Sql_upd, Con)
Cmd_upd.ExecuteNonQuery()
Catch b as Exception
response.write("<Text>")
End Try
End If
End Try
Thanks,
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Jul 14, 2005
Hi,I want to clear all data from 200 tables in a database from a sql query. Some of the tables have got relationship as well. I want to clear data from there as well.What could be the best approach? Does anyone have an idea or script from where I could do the needful?Do let me know.Thanks
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Apr 3, 2002
HI
May I know how to clear the cache area in the analyser as I need to
know the time taken for execution of an sql statement(query) before
and after creation of indexes.
tia
MK
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Oct 18, 2007
Hello,
I am searching for a resolution. I did a few searches on this site and could not gain the exact answer. I apologize is this thread is a duplicate.
I have written a report containing Multi-Values for Reporting Services. When a user selects the values for the report parameters, the checked values continue to be selected after the report is completed.
Is there a way to clear these parameters?
Some of our users run the same report more than once during a single web session.
Thank you for your attention!
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May 8, 2007
Hi There
I am ending conversations properly for a dialog, the end conversation at the target properly marks the conversation as closed in sys.conversation_endpoints and sends the EndDialog message to the initiator.
The initiator get the EndDialog message from the target and ends the conversation and it clears out of sys.conversation_endpoints.
I know that to avoid reply attacks that the conversation at the target will only clear out in 30 minutes.
However it has been a day now and the conversation is still sitting in sys.conversation_endpoints as CLOSED at the target.
How do i troubleshoot this ? Why is the conversation not clearing?
Thanx
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Sep 6, 2007
Hi,
We have an application which fetches data from a table which has approximately 1 million records.
1. Nearly 25 users will be using this application concurrently.
2. frequent updations will be done to the records in the geographyrolecurriculum table.
3. This table has 1 clustered index and 4 nonclustered index bounded to it.
Problem Statement:
1. Application runs smoothly for 15 - 20 days and after that all the screens throws timeout errors.
When i clear the sys.syscacheobjects its working fine again and screens get loaded quickly.
Please tell me how clearing the syscacheobjects makes the execution fast? and is this the correct way to solve the timeout issue or is there any other alternative?
2. Will the stored procs timeout if the tempdb is full ?
Thanks,
Arunprasad
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Aug 14, 2015
I have a Database that is set to Simple Recovery mode.
It is not clearing the log and the transaction log is growing.
I thought that it would clear the log upon checkpoint?
How can I force the Transaction Log to clear since NO-TRUNCATE is no longer available?
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Jul 20, 2005
I have been searching many postings and I cant seem to find anyonethat has this answer so I decided to post. I am using SQL(Transact-SQL).If I have 2 tables with columnsacct_num,activity_date,and pay_amt and I want to delete one instanceof a record in table 1 for every instance of that record in table 2how could I do that. For example.Table 1-----------acct activity_date pay_amt123 5/1/2004 50.00123 5/1/2004 50.00123 5/1/2004 50.00123 5/1/2004 50.00123 5/1/2004 50.00Table 2-----------acct activity_date pay_amt123 5/1/2004 50.00123 5/1/2004 50.00I need a delete statement that will find 2 of the 5 records(It doesn'tmatter which 2) and delete them.Leaving table one looking like this.Table 1-----------acct activity_date pay_amt123 5/1/2004 50.00123 5/1/2004 50.00123 5/1/2004 50.00How can I do this??
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Jun 6, 2015
I am just learning about temp temps using Iteration, how do I clear the contents of the #temp table because when I re-run the query I get the following error:
Msg 2714, Level 16, State 6, Line 6
There is already an object named '#mytemp2' in the database.
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Jun 4, 2007
Hi,
I am developing automated .Net Unit Tests, and as a prerequisite of each test, I would like to clear the service broker queues of any messages. Executing the
RECEIVE * FROM statement appears to only return a message at a time, and not all as I expected. Any ideas on how to make this happen, besides not having to delete the queues and then having to rebuild them?
Thanks,Eugen
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Dec 6, 2000
We see the following message in our error log.
WARNING: Clearing procedure cache to free contiguous memory.
It is accomonpanied by fairly intensive CPU activity.
We get this roughly once per working day.
Anyone have any idea why, and what we can do to stop this?
Regads,
Jim Plant
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Jul 16, 2015
I am using SSRS 2008 and the reports we have use parameters of type Date/Time. The reports work well when the parameter values are entered correctly.
When entering an invalid date format for one of the Date/Time parameters the following error is displayed "The value provided for the report '<parameter name>' is not valid for its type. (rsReportParameterTypeMismatch). This seems to be working correctly as well. However, when the correct date format is then entered for the report parameter for which the report threw an error, the error persists and the report doesn't run again. Setting the parameter to "NULL" doesn't work either.
The only way to get the report to run again is to refresh the entire report. Of course, if at that point one has entered a bunch of other parameter values, those values all disappear.
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Aug 19, 2006
In SQL Server 2000, I have a parent table with a cascade update to a child table. I want to add a record to the child table whenever I add a table to the parent table. Thanks
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Apr 29, 2014
I have table 'stores' that has 3 columns (storeid, article, doc), I have a second table 'allstores' that has 3 columns(storeid(always 'ALL'), article, doc). The stores table's storeid column will have a stores id, then will have multiple articles, and docs. The 'allstores' table will have 'all' in the store for every article and doc combination. This table is like the master lookup table for all possible article and doc combinations. The 'stores' table will have the actual article and doc per storeid.
What I am wanting to pull is all article, doc combinations that exist in the 'allstores' table, but do not exist in the 'stores' table, per storeid. So if the article/doc combination exists in the 'allstores' table and in the 'stores' table for storeid of 50 does not use that combination, but store 51 does, I want the output of storeid 50, and what combination does not exist for that storeid. I will try this example:
'allstores' 'Stores'
storeid doc article storeid doc article
ALL 0010 001 101 0010 001
ALL 0010 002 101 0010 002
ALL 0011 001 102 0011 002
ALL 0011 002
So I want the query to pull the one from 'allstores' that does not exist in 'stores' which in this case would the 3rd record "ALL 0011 001".
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