I have never written a trigger before and now am seeing the light. Is
there a way to write a trigger so that if a user changes any column in
a single row on one table then the trigger will write the value of
this (these) rows to a second table. I don't want the unchanged
columns, just the changed columns (with column names...)
Thanks,
lq
Hi,
We have a column syncUpdate in some tables and we need a trigger (or one for each table) which will set the current dateTime for the syncLastUpdate (dateTime) when either the row is inserted or updated (we have to ignore the syncLastUpdate column itself as this would be an infinite loop, I think).
I don't know much about DB but I think that is easly doable.
Can anyone help me with that, please?
Cheers
Hi All,I'm a relatively newbie to SQL Server 2000, having come from a MySQLbackground.I'm creating my first Trigger statement on a table, and I'd like toknow how I go about performing an update on the row that was changedwhen the trigger was fired.To explain, I have 2 columns, one which contains a member number, theother which contains a flag that is supposed to indicate whether ornot the member number in the row has changed since the last time thetable was processed for updates.So, whenever the value in the member number field [memnum] is updated,I want to set the flag [igproc] to true.The best I've been able to do is:CREATE TRIGGER [updateignoreprocflag] ON [dbo].[dd_testtable]FOR UPDATEASdeclare @key as intIF UPDATE (memnum)select @key = recid from insertedUPDATE dd_testtable set igproc=1 where recid=@keyThis seems to work, but I'd like to know if there's a better way ofretrieving the recid value of the changed row to pass to the UPDATEstatement? Also, I read somewhere in passing that using SELECTstatements and variable assignments within triggers can cause problemswhen called from other applications; in this case it will either be aweb site using ASP.or an application developed in FOXPRO. I can't findwhere I read this originally, so it's entirely possible I imagined itor misunderstood it, but I'd very much appreciate it if someone couldconfirm whether or not this is the case?Many, many thanks in advance!Much warmth,Murray
View 2 Replies View RelatedI have a stored procedure that inserts values into five columns of atable. I need another stored procedure that will allow the user to passone or more of those parameters and update only the column for the datathat was passed. In other words, the update may only have one or two ofthe parameters that was originally provided in the insert. Therefore, Ido not want to update the columns that did not change. What is theproper way to handle this situation?
View 1 Replies View Relatedi there,
I've got a problem With updates on a Table.
I want to update only the Columns which are different to the values of my update-Statement.
One of the problems is an update trigger , which is fired on all update statements.
I want the trigger to be fired only when there are real changes.
Of course i can retrospectively check if there was a real, but i can't devide the real updatet colums from the non changed values. I know there is a statement like RowsUpdated but it doesn't work that way. It indicates also the non changed columns. To lock the row pessimistic read and compare the contents before update is also no option for me.
Is there any command to perform this in a smart way? Or should it be suggested for the next version of SQL-Server like "UPDATE CHANGES MY_TABLENAME SET MY_COLUMN= ... "
thanks in advance
Raimund
Hi,This is probably an easy question for someone so any help would beappreciated.I have changed the columns in a table that where nvarchar to the samesize of type varchar so halve the space needed for them.I have done this a) becuase this is never going to be an internationalapplication, b) we are running out of space and c) there are 100million rows.I have done this with the alter table statement which seems to work butthe space used in the database hasn't altered.I'm presuming that the way the records are structured within the tablethere is just now more space free inbetween each page???Is there a way or re-shrinking just an individual table and free upsome of the space in there or am i missing the point somewhere?Thanks in advance,Ian
View 4 Replies View RelatedHello All
Not sure if this is the right forum to post this question to, so if it's not, please accept my apologies.
I'm working in SQL Server 2005 with a database that was migrated to 2005 from SQL Server 2000. I have to alter a trigger on a table for some functionality changes, and when I modify the trigger and then access it through the application the database is working with, I receive this error:
There was a error in the [stored procedure name] procedure. Error Number: -2147217900 Error Description: [Microsoft][ODBC SQL Server Driver][SQL Server]The definition of object '[trigger name]' has changed since it was compiled.
[stored procedure name] and [trigger name] are where the actual names appear in the message.
I've tried running sp_recompile on the trigger, stored procedure, and table that are associated with this, and nothing works. I have dropped the trigger, which allows the save process to complete (but doesn't perform the required functionality, of course), and then re-created the trigger, but the error message still comes up. The compatibility level for the database is SQL Server 2000 (80) (as it was migrated from SQL Server 2000 as I mentioned above).
Has anyone seen this, and if so, how can I fix it?
Thanks in advance for your help!
Jay
I have the following view (vProcurementPlan)SELECT dbo.tblProcurementPlan.*, dbo.tblRequisition.RequisitionID ASReqReqID, dbo.tblRequisition.ReqNo AS ReqNo, dbo.tblRequisition.Am AS Am,dbo.tblRequisition.ROS AS ROS,dbo.tblRequisition.ActivityID AS ActivityID, dbo.tblRequisition.ProjectID ASProjectIDFROM dbo.tblProcurementPlan INNER JOINdbo.tblRequisition ONdbo.tblProcurementPlan.RequisitionID = dbo.tblRequisition.RequisitionIDIf I try inserting a record from Access it complains about multiple basetables, I'm happy to write an "instead of" trigger and handle the 5 columnsfrom tblRequisition but as it contains all columns from tblProcurementPlan Idon't want to have to list them separately in any insert or updatestatement.The idea is that a record will be inserted into both tables simultaneouslyupon insert to the view.
View 2 Replies View RelatedI'm looking for an efficient way to populate derived columns when Iinsert data into a table in SQL Server. In Informix and PostgreSQLthis is easily done using the "for each row..." syntax, but all I'vebeen able to come up with for SQL Server is the following:create table testtrigger(id integer unique, b integer, c integer)gocreate trigger testtrigger_ins on testtriggerfor insert asupdate testtrigger set c = (select ...some_function_of_b... fromtesttrigger t1,inserted t2where t1.id = t2.id)where id in (select id from inserted);gowhere id is testrigger's unique id field, and c is a field derived fromb.This seems terribly inefficient since each insert results in an extraselect and update. And if the table is large and unindexed (which itcould be if we are bulk loading) then I would imagine this would bevery slow.Are there any better ways of doing this?Many thanks,...Mike Dunham-Wilkie
View 2 Replies View RelatedHi,
I'm using sql-2005.
I want to update several columns in different tables whenever an update is happend on specific table. I have a trigger for that which update all the relevant places when it fires.
I want to do this update only if certains columns were changed, otherwise - do anything, to reduce performance.
How Can I know which columns were updated inside the trigger? The tables has many columns and only if 2 of them were changed then I need to update other tables.
Many thanks,
Nira.
Hello:
I am running into an issue with RS2k PDF export.
Case: Exporting Report to PDF/Printing/TIFF
Report: Contains 1 table with 19 Columns. 1 column is static, the other 18 are visible at the users descretion. Report when printed/exported to pdf spans 2 pages naturally, 16 on the first page, 3 on the second, and the column widths have been adjusted to provide a perfect page span .
User A elects to hide two of the columns, and show the rest. The report complies and the viewable version is perfect, the excel export is perfect.. the PDF export on the first page causes every fith column, starting with the last column that was hidden to be expanded to take up additional width. On the spanned page, it renders the first column on that page correctly, then there is a white space gap equal to the width of the hidden columns and then the rest of the cells show with the last column expanded to take up the same width that the original 2 columns were going to take up, plus its width.
We have tried several different settings to see if it helps this issue or makes it worse. So far cangrow/canshrink/keep together have made no impact. It is not possible to increase the page size due to limited page size selection availablility for the client. There are far too many combinations of what the user can elect to show or hide to put together different tables to show and hide on the same report to remove this effect.
Any help or suggestion on this issue would be appreciated
I am trying to add 2 separate columns from separate tables i.e column1 should be added to column 2 when inserted and I want to use a trigger but i don't know the syntax to use...
View 14 Replies View RelatedIs there a way to produce a query to look at when and who changed database objects last?
View 1 Replies View RelatedI have a table as part of a replicated database where i need to change the allow nulls value (set it to not allow nulls) but when i try to save the table i get this error.
'CONTACTS' table
- Unable to modify table.
ODBC error: [Microsoft][ODBC SQL Server Driver][SQL Server]Cannot drop the table 'dbo.CONTACTS' because it is being used for replication.
will i have to stop replication to make the change or is it worse and i have to delete the publication and start all over again?
I have an IDENTITY value in a table that was incorrectly created, and needs to be modified. Can this be accomplished?
Thanks.
hi all
im really have a problem in my project.
i have server and client side each side contain SQL Server DB.
and i have excel file on the server side this excel file conected with another server, this file changed data in continuosly each less than 1 sec by data feed.
now i need to read each changed data cell from this file to save it on server DB and Client DB (just changed data).
my problem :
u know changed event is not fired when change cell by data feed or not edit manually, just calc event is rised . but calc event do not specify the changed cell range (address).
so i do this to know changed cell range:
when run the program saved all excel tabel into SQL server table.
and then check row by row between excel and sql if any change , when i get any change, i update the excel row insted this DB row.
and rise event to send this row to client by socket over internet to update the row in client side too.
but i tell u that the excel file updated each less than 1 sec, and i noted that many changed excel data missed until checked row by row for whole excel sheet with DB tabel and updated change.
this is my problem ( please help me as soon as posible coz i have dead line to Delivered this program)
and if u recomended me for another techneque to be easy or quickly to solve this problem i will thaks so much for u)
thank u.
AL-Khateeb
Maybe somebody has asked this question, but I could not find it....
I used SSIS to transfer data from Oracle database to SQL Server 2005 (with Microsoft OLE DB Provider for Oracle). It worked fine with the TNS alias name said oracle1. Then I changed the TNS alias name to oracle2. I could connect to Oracle database with oracle2 using Oracle's tool. But SSIS could not find (or solve) oracle2, if I changed the name back to oracle1 in SSIS, then SSIS worked.
Any idea?
Thanks!
Hello,
I have developed a report based on a stored procedure which will generate an excel file. There is a requirement that this file needs to be sent to an external domain with the name changed accordingly i.e., a date is to be suffixed to the file after the name has been changed based on their naming convention.
I would appreciate, if anybody has done so and can give me some steps for me to work out.
TIA
I have a page that uses an SQLDataSource web control to populate a GridView control. The SQLDataSource control uses three parameters, one of which is a text string (varchar(50)). I get timeout expired exceptions when I run the page with two specific string values, yet when I run the stored procedure in SqlSvr Management Studio, the procedure runs in 5 seconds and under 1 seconds. Being rnew to ASP.NET 2.0 and .Net in general, I have no idea where this lag is occurring. I would like to know two things:
1. What is causing the lag that causes the timeout in ASP.NET 2.0.
2. What can be done to adjust the timeout period SQLSVR, IIS, ASP.NET).
The underlying query is running as desired (considering the data it has to chew on). For all other values, data is returned almost instantanious. I can provide a copy of the query id need be.
Truly appreciate any insight you can give me!
i changed my state table from char 20 to varchar 20 and it still fills it with empty space at the end of the statename
I tried entering it with the trim command still no good
i looked a the sql command made in vs and it says that the variables are varchar
is there something i am missing with varchar
does it only work properly if it is over 50 or does it not change completely when you change from char to varchar
Is there any way to reconfigure SQLSERVER if the name of the server was changed after the initial installation of Sql was completed?
View 2 Replies View RelatedHello,
Soon, we are going to redesign our servers and their positioning insofar as web access is concerned. The SQL Server will go to a DMZ.
Its IP Address (as well as hostname) is to be changed. Can you offer suggestions about what to be aware of on these two items?
I've been involved in a hostname change befoew (and, it's a pain), but never an IP Address.
Thanks, MichaelG
i have table Table1 with column lastname ,firstname ect.The Data type is varchar.
I have inserted values. I have selected records from this table and assign this records to the TDC control of the HTML .The query returns 130 records.The TDC control has the Unicode delimiter. Whene we select top 7 ,seven records are displayed ,when it is top 8 it does not show any records.
If we delete the Lastname and Firstname values for this 8th record then all the 130 records are displayed.
Why is this happning.Any great minds can help me in this pls
Is there any method so that I can find that the particular user has changed the record in the particualr table..?
View 1 Replies View RelatedFirst of all, let me apoligize if this is a stupid question, but just a few days ago I decided to change my FE/BE database from Ms Access to SQL Server Express. Now I have a FE in ACC2002 and a BE in SQL SERVER (the two connected via ODBC). Anyway, this is my question:
When everything was in Access I had a form retreiving a series of records based on a filter - for understanding purpose let's say that a field must have been 'Not Null'. The operator then filled that field with data. With Access everything was static, and the operator could see all the records, the ones already changed and the ones not changed. With SQL now: everytime the operator fills in the field, the record changes to #Deleted. I assume that that is happening because the query - someway - is "alive" and is "filtering data alive"... or is updating records instantly. Just to make things more clear: is the record changed immediately so it is not considered part of the filtered data by the query, thus being change to #Deleted? What could I do to prevent this?
Thanks a lot for your help.
Hi,
I hava a table with the following information
CREATE TABLE TEMP1 (REFID INT, REVISION INT, FIELDNAM VARCHAR(10), VALUE VARCHAR(10));
INSERT INTO TEMP1 VALUES(1001, 0, 'A', 'A2');
INSERT INTO TEMP1 VALUES(1001, 0, 'C', 'C2');
INSERT INTO TEMP1 VALUES(1001, 0, 'E', 'E2');
INSERT INTO TEMP1 VALUES(1002, 0, 'A', 'A3');
INSERT INTO TEMP1 VALUES(1002, 0, 'B', 'B2');
INSERT INTO TEMP1 VALUES(1002, 0, 'E', 'E3');
INSERT INTO TEMP1 VALUES(1001, 1, 'A', 'A4');
INSERT INTO TEMP1 VALUES(1001, 1, 'E', 'E4');
Here based on latest revision and refid I should get the fieldnam and value.
Expected output:
REFID FIELDNAM VALUE REVISION
1001 A A4 1
1001 E E4 1
1002 B B2 0
1001 C C2 0
Hi all,
How can i get the information as to when was the last my particular table structure was changed (for ex. adding of a column/dropping a column)
Pls let me know
TIA
I want to import via DTS to big table only the records that changed last day. can i do it without a time field? because this is a key table for DWH and not a fact table.
THX
Inon
I am trying to find the last changed date for a procedure. I have located the date created in the sysobjects table (crdate). Is this available?
View 8 Replies View RelatedOkay, 2 questions here.
First I want to query everyone with a date greater than today in the field EXPIRATION DATE. I know I can say > 2006-03-19 but I always want it to be TODAY.
Next, Is there a system field that I can search for the date a record was last updated?? I make frequent changes, and I want others to see what date a record was last updated. If not, can I tell the system to mark a field "YES" when I make changes?
I use phpmyadmin. I do not have server access, just through PHP.
Thanks!
TV
...The TIger has ROARED
Hi experts,I have been trying to limit the table rows in the following situation,any suggestions will be appreciated.we have table called tempTb has columns id, c_id, c_name, rating, datecolumns.id is an identity column.date is a datetime column, the rest are varchar datatype.Here is the table structure with sample data,idc_idc_nameratingdate1aoamer onli11/1/20022aoamer onli13/1/20023aoamer onli16/1/20024aoamer onli39/1/20025aoamer onli312/1/20026aoamer onli33/1/20037aoamer onli36/1/20038aoamer onli39/1/20039aoamer onli212/1/200310aoamer onli16/1/200411aoamer onli112/1/200412xyxabs yasd11/1/200213xyxabs yasd23/1/200214xyxabs yasd26/1/200215xyxabs yasd29/1/200216xyxabs yasd112/1/200217xyxabs yasd13/1/200318xyxabs yasd36/1/200319xyxabs yasd39/1/200320xyxabs yasd212/1/200321xyxabs yasd16/1/200422xyxabs yasd112/1/2004[color=blue]>From this table I need to select the rows with rating changes only,[/color]i.e if two or three consecutive rows have same rating only the firstrow should be selected.the selection should look like...idc_idc_nameratingdate1aoamer onli11/1/20024aoamer onli39/1/20029aoamer onli212/1/200310aoamer onli16/1/200412xyxabs yasd11/1/200213xyxabs yasd23/1/200216xyxabs yasd112/1/200218xyxabs yasd36/1/200320xyxabs yasd212/1/200321xyxabs yasd16/1/2004I was trying to do this by self-joining the table like....select t1.* from tempTb t1, tempTb t2where t1.id!=t2.id,t1.c_id=t2.c_id,t1.c_name=t2.c_name,t1.rating!=t2.rating.But this is generating cartesian products,I have tried some other combinations after where clause with date colmnwtc,but none seems to give the required result.so if anybody can guide me in the right direction I would appreciateit.Thanks alot,Remote
View 4 Replies View RelatedI need to create a table that would be the result set of a comparisonbetween table a and table b? Table a and b first 2 fields will always bethe same (CustomerName and CustomerNumber). But if the Address1 fieldchanges in table a, I would like to throw that whole row into mycomparison table. Almost like a Select Into with a sub query that wouldinclude a WHERE TableA.field <> TableB.field. I would need to do thiscomparison for about 8 fields. Help appreciated for my syntax is prettybad. Thanks.Steve*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
View 1 Replies View RelatedWhen I create tables in SQL I can specify dbo as the owner using thesyntax below but when using the upsize wizard in Access 2000 I owneverything. Is there a way that the system administrator can changeownership after the fact?CREATE TABLE dbo.mytable (c1 int not null)Thank You,Randy KJoin Bytes!
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