Question About Writting A Trigger
May 1, 2008
hello.
i have two table so that they are following form:
tblCardex(Fd_GoodsId,Fd_RepositoryId,Fd_DateTime,Fd_Type,Fd_UnitCoefficent)
tblGoodsStock(Fd_GoodsId,Fd_RepositoryId,Fd_UnitCoefficent)
Fd_GoodsId,Fd_RepositoryId -->inteager
Fd_UnitCoefficent --> decimal
Fd_Type --> bit (0 means input and 1 means output)
i wish writting a trigger on Insert of tblCardex.in this trigger ,i must do following operations:
if(tblGoodsStock.Fd_GoodsId=Inserted.Fd_GoodsId and tblGoodsStock.Fd_RepositoryId=Inserted.Fd_RepositoryId)
begin
if(Inserted.Fd_Type==0)
tblGoodsStock.Fd_UnitCoefficent = tblGoodsStock.Fd_UnitCoefficent+
Inserted.Fd_UnitCoefficent
else --Inserted.Fd_Type==1
tblGoodsStock.Fd_UnitCoefficent = tblGoodsStock.Fd_UnitCoefficent-
Inserted.Fd_UnitCoefficent
end
tank you.
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Feb 13, 2001
Hello,
I have to write a trigger to truncate a table at a scheduled time.Truncate statement is not allowed in the trigger.What should I do.I mean how to go for it.How can I test my trigger if it's working fine or not.
Thanks for any help.
JAY
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Sep 3, 2007
I am using Sql Server 2000.
I have a customer table with fields - CustId, Name, Address, City, StdCode, Phone.
I used to insert entries in this table from an excel file.
One excel file will contain thousands of customer.
In this table combination of StdCode and Phone should not be repeated.
If I do it in my VB.Net coding.then application gets drastically slow.
So I want to write a procedure or trigger for this.
Here what I will do, I will send all records into database then this trigger or procedure will check for
any existing entry of combination of StdCode and phone. If entry exists then this will delete new entry
or will not allow this new entry.
Is this possible to do using Trigger or stored procedure?
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Feb 13, 2001
Hello,
I have to write a trigger to truncate at a scheduled time.Truncate statement is not allowed in the trigger.What should I do.I mean how to go for it.
Thanks for any help.
JAY
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Jun 25, 2007
I have table name employee with attributes like eno,ename dno,salary. My problem is that i need select complete information of the emloyee's when employee getting same salary in same depatment.
Eg: I have the table like this
eno ename dno salary
1 Noor D10 10000.50
2 Ahmed D20 20000.75
3 jaya D30 15000.65
4 hema D10 10000.50
5 rupa D20 20000.75
6 prabha D40 20000.75
7 lalitha D40 12000.75
8 vetri D40 12000.75
and i need the output as fallows
eno ename dno salary
1 Noor D10 10000.50
4 hema D10 10000.50
7 lalitha D40 12000.75
8 vetri D40 12000.75
2 Ahmed D20 20000.75
5 rupa D20 20000.75
so I written the query like this
SELECT * FROM employee
where dno in(SELECT dno FROM employee
group by dno,salary
having count(dno)>1) and
salary in(SELECT salary FROM sub
group by dno,salary
having count(salary)>1)
but i got the output as fallows
eno ename dno salary
1 Noor D10 10000.50
4 hema D10 10000.50
7 lalitha D40 12000.75
8 vetri D40 12000.75
2 Ahmed D20 20000.75
5 rupa D20 20000.75
6 prabha D40 20000.75
so plz somebody help me to get the output what i need........
Noor Ahmed
Keysoft solution
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Jul 2, 2007
Hallo
We got a €œSql Server€? and an €œAS400€? System. I can Read the information from the AS400 using a DataReader- Source my problem ist that I can not manage to write in the €œAS400€?. Using a DataReader- Destination I am not able to specify the destination table.
Does any one know what I am missing to Configure?
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Oct 6, 2006
hi,
here i had created two table named table1,table. both the tables are homogenously belongs to same group. if i eneter any data say pinno in table1 the same pinno has to be enterd into table so i had wirtten a trigger for table here like this:
create trigger Tg_Table1 on Table1
for insert as
insert into Table2(pinno)
select pinno as pinno from table1.
the query is getting compiling correctly but the data entered into table2 while entering into the table1 is coming with duplicate values like:
output of table2:
pinno
1001 -> when i inserted 1001 in table1
1001 -> when i inserted 1002 in table1
1002
1001 -> when i inserted 1003 in table1
1002
1003
the column name pinno in table1 is also same for table2.
intially i had primary keys for two tables for column pinno. at that time it has shown error wqhile i am trying to insert data into table1.
so i dropped the PK constarint for table2. this time the out put coming with replicated values.
pls some one show me a way to clear this problem
One can never consent to creep,when one feels an impulse to soar
RAMMOHAN
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Feb 14, 2006
Hi All,
I need to read data from a table, on a remote server, and write the data to an identical table on the local server. (That I did and all works fine.) The local server is were we do analysis services. So, with the data from the remote, I need to write parts of it to 2 tables other than the local identical table. (I hope this is clear) What tools do I use to accomplish this?
If this is not clear, let me know and I will try to clarify.
Your help is very much appreciated.
Thanks,
Roy
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Feb 28, 2008
Can someone please help I'm writting the following query.
SELECT
(SELECT c.column_name FROM information_schema.tables T
JOIN information_schema.columns C
ON t.table_name = c.table_name
WHERE t.table_type = 'base table' and t.table_name like 'L_%' )
INTO #TempTable FROM TableA A LEFT JOIN [Server-Name].DB_Name.dbo.TableB B ON A.ID = B.ID
I'm trying to put commas between column names. How do I go about doing that?
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Apr 7, 2006
Hi:
I'm trying to write a transformation script to write multiple rows from 1 input row. In SQL Server 2000 DTS I could do this by using DTSTransformStat_SkipFetch and DTSTransformStat_SkipRow. In SQL server 2005 it looks like I need to use EndOfRowset but I do not know how to use it for sure.
If this correct can someone show me a code example and if I am incorrect can someone tell me how to do this?
Thanks
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Aug 24, 2006
Hi Friends,
I am trying to write SQL statement for getting information about Cube metadata.
When we create any table in MSSQL server, we can trace out its information from system tables in master database by querying tables like sysobjects, syscolumns etc.
Like that I have created a cube using MS Analysis services and I can see Metadata (like Creation Date, Processed on etc) on 'Metadata' tab of cube. But I want to access its contents by writting SQL statement. For this I could not locate any system level table where this information gets stored.
Could any one help me for writting htis system table level query for accessing metadata info of cube?
Thanks in advance.
Avadhoot
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Jul 20, 2005
HiI am trying to write a report that calculates the average number of salesover 7, 14, 31 and 365 days for each hourly period of the day. the problemis it takes over 4 minutes to run.e.g.Average Xactions per Hour7 Days 14 Days 31 Days 365 Days00:00 - 01:00 1,141.6 579.2 261.6 28.801:00 - 02:00 1,298.0 649.6 293.4 30.0The report was use to be purely ASP running SQL Statements.I then changed it to ASP Running a SP 24 times - this reduced running timeby about 1 minute.I then changed it so that the stored proc looped internally 24 times andreturns the data.I have ran the Index Tuning Wizard on the SQL and Implemented the indexessuggested - this actually increase execution time by 20 seconds.Below is the stored procedure I am currently using that loops internally 24times and returns the data.Can anyone suggest a better way / any improvements I could make ?Many ThanksSteve-----------------------------------------------------------------------------------------------------CREATE procedure ams_RPT_Gen_Stats@strResult varchar(8) = 'Failure' output,@strErrorDesc varchar(512) = 'SP Not Executed' output,@strTest varchar(1),@strCurrency varchar(3),@strVFEID varchar(16)asdeclare @strStep varchar(32)set @strStep = 'Start of Stored Proc'/* start insert sp code here */create table ##Averages (TheHour varchar(2),Day7Avge float ,Day14Avge float ,Day31Avge float ,Day365Avge float)declare @numHour varchar(2)declare @strSQL varchar(2000)declare @Wholesalers varchar(64)declare MyHours cursor FORWARD_ONLY READ_ONLY forselect convert(char(2), timestamp,14) as TheHourfrom xactionsgroup by convert(char(2), timestamp,14)order by convert(char(2), timestamp,14)if @strTest = 'Y'select @Wholesalers = VALUE FROM BUSINESSRULES WHERE NAME ='TEST_Wholesalers'open MyHoursfetch next from MyHours into @numHourwhile @@fetch_status = 0beginset @strSQL = 'insert into ##Averages (TheHour, Day7Avge) ( select ''' +@numHour + ''', ' +'count(*) / 7.00 ' +'FROM ' +'XACTIONS INNER JOIN ' +'RETAILER ON XACTIONS.RETAILERID = RETAILER.RETAILERID ' +'WHERE ' +'(DATEDIFF(DAY , xactions.timestamp , GETDATE() ) < 8) and ' +'xactions.xactiontotal <> 0 and ' +' convert(char(2) , timestamp, 14) = ''' + @numHour + ''' 'if @strTest = 'Y'set @strSQL = @strSQL + ' and retailer.BillOrgID not in (' +@Wholesalers + ') 'if @strCurrency <> '*'set @strSQL = @strSQL + ' and xactions.XACTIONCURRENCY = ''' +@strCurrency + ''' 'if @strVFEID <> '*'set @strSQL = @strSQL + ' and xactions.VFEID = ''' + @strVFEID + ''''set @strSQL = @strSQL + ')'exec ( @strSQL )set @strSQL = 'update ##Averages set Day14Avge = ( select ' +'count(*) / 14.00 ' +'FROM ' +'XACTIONS INNER JOIN ' +'RETAILER ON XACTIONS.RETAILERID = RETAILER.RETAILERID ' +'WHERE ' +'(DATEDIFF(DAY , xactions.timestamp , GETDATE() ) < 15) and ' +'xactions.xactiontotal <> 0 and ' +' convert(char(2) , timestamp, 14) = ''' + @numHour + ''' 'if @strTest = 'Y'set @strSQL = @strSQL + ' and retailer.BillOrgID not in (' +@Wholesalers + ') 'if @strCurrency <> '*'set @strSQL = @strSQL + ' and xactions.XACTIONCURRENCY = ''' +@strCurrency + ''' 'if @strVFEID <> '*'set @strSQL = @strSQL + ' and xactions.VFEID = ''' + @strVFEID + ''' 'set @strSQL = @strSQL + ') where TheHour = ''' + @numHour + ''' 'exec ( @strSQL )set @strSQL = 'update ##Averages set Day31Avge = ( select ' +'count(*) / 31.00 ' +'FROM ' +'XACTIONS INNER JOIN ' +'RETAILER ON XACTIONS.RETAILERID = RETAILER.RETAILERID ' +'WHERE ' +'(DATEDIFF(DAY , xactions.timestamp , GETDATE() ) < 32) and ' +'xactions.xactiontotal <> 0 and ' +' convert(char(2) , timestamp, 14) = ''' + @numHour + ''' 'if @strTest = 'Y'set @strSQL = @strSQL + ' and retailer.BillOrgID not in (' +@Wholesalers + ') 'if @strCurrency <> '*'set @strSQL = @strSQL + ' and xactions.XACTIONCURRENCY = ''' +@strCurrency + ''' 'if @strVFEID <> '*'set @strSQL = @strSQL + ' and xactions.VFEID = ''' + @strVFEID + ''' 'set @strSQL = @strSQL + ' ) where TheHour = ''' + @numHour + ''' 'exec ( @strSQL )set @strSQL = 'update ##Averages set Day365Avge = ( select ' +'count(*) / 365.00 ' +'FROM ' +'XACTIONS INNER JOIN ' +'RETAILER ON XACTIONS.RETAILERID = RETAILER.RETAILERID ' +'WHERE ' +'(DATEDIFF(DAY , xactions.timestamp , GETDATE() ) < 366) and ' +'xactions.xactiontotal <> 0 and ' +' convert(char(2) , timestamp, 14) = ''' + @numHour + ''' 'if @strTest = 'Y'set @strSQL = @strSQL + ' and retailer.BillOrgID not in (' +@Wholesalers + ') 'if @strCurrency <> '*'set @strSQL = @strSQL + ' and xactions.XACTIONCURRENCY = ''' +@strCurrency + ''' 'if @strVFEID <> '*'set @strSQL = @strSQL + ' and xactions.VFEID = ''' + @strVFEID + ''' 'set @strSQL = @strSQL + ' ) where TheHour = ''' + @numHour + ''' 'exec ( @strSQL )fetch next from MyHours into @numHourend -- while fetchclose MyHoursdeallocate MyHoursselect * from ##Averages order by TheHourdrop table ##Averages/* end insert sp code here */if (@@error <> 0)beginset @strResult = 'Failure'set @strErrorDesc = 'Fail @ Step :' + @strStep + ' Error : ' +CONVERT(VARCHAR,@@Error)return -1969endelsebeginset @strResult = 'Success'set @strErrorDesc = ''endreturn 0GO
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May 1, 2007
In both VB6 and VB2005 Both are loaded on same computer. When attempting to write to an access database table using ADO I get a runtime error: -2147217887(80040e21) "mutiple-step operation generates errors. Check each status value. " Reading the database is no problem. I only get the errors when writting to database. I have used the following code forever in VB6 and never got this error. Now that I have Visual Studio 2005 loaded on the same machine. I get this error. I get the exact same error when using this code in VB2005. I know VB6 but am just learning 2005. The following code is writting to a database table from various user imputed text and combo boxes. I used basicly the same code in VB2005 and get the same exception error. This code works on machines that do not have VB .net loaded. How do I fix this. My application is useless unless the user can make changes to their data.
Public Function ActionToDb()
Dim noPo As Integer
Dim SQL As String, rst As ADODB.Recordset, dataSourceName As String
dataSourceName = DBPATH & "LVBURV Database.mdb"
dbConn.ConnectionString = "DBQ=" & dataSourceName & ";Driver={Microsoft Access Driver (*.mdb)}"
dbConn.Open
On Error GoTo ErrorHandler
Set rst = New ADODB.Recordset
With rst
SQL = "Select [mLVbuNo], [mStratInit], [mMerticLv],[mSubMetLv],[mTaskAction],[mImpact]," & _
"[mStatus], [mOwner], [mTitle],[mOrigDate],[mCurrentDate],[mCopmpleteDt],[mComment],[mSource]," & _ "[mStatColor],[mHyperlink],[CompCheck] From [tblMasterActionItem]"
.CursorLocation = adUseClient
.Open SQL, dbConn, adOpenKeyset, adLockBatchOptimistic, adCmdText
noPo = .RecordCount
'If .RecordCount > 0 Then
.MoveLast
.AddNew
rst.Fields("mLVbuNo") = giRecNo
rst.Fields("mStratInit") = frmActionDe.cboStatInit.Text
rst.Fields("mMerticLv") = frmActionDe.cboMetricLever.Text
rst.Fields("mSubMetLv") = frmActionDe.cboSubMet.Text
rst.Fields("mTaskAction") = frmActionDe.txtTask.Text
rst.Fields("mImpact") = frmActionDe.txtImpact.Text
rst.Fields("mStatus") = frmActionDe.txtStatus.Text
rst.Fields("mOwner") = frmActionDe.cboOwn.Text
rst.Fields("mTitle") = gstOwnT
rst.Fields("mOrigDate") = frmActionDe.txtOrigDt.Text
rst.Fields("mCurrentDate") = frmActionDe.txtCurDt.Text
rst.Fields("mCopmpleteDt") = frmActionDe.txtCompDt.Text
rst.Fields("mComment") = frmActionDe.txtComments.Text
rst.Fields("mSource") = frmActionDe.cboSource.Text
rst.Fields("mStatColor") = frmActionDe.txtStatColor.Text
rst.Fields("mHyperlink") = frmActionDe.txtHyperlink.Text
If optCompCheck.Value = True Then
rst.Fields("CompCheck") = True
Else
rst.Fields("CompCheck") = False
End If
'End If
.Update
.Close
End With
dbConn.Close
ExitSub:
On Error Resume Next
dbConn.Close
Set rst = Nothing
Set dbConn = Nothing
Exit Sub
ErrorHandler:
WriteToErrorLogEnd Err.Description & " in ActionToDb"
Resume
End Function
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Nov 14, 2006
Hey,
I'm new to this whole SQL Server 2005 thing as well as database design and I've read up on various ways I can integrate business constraints into my database. I'm not sure which way applies to me, but I could use a helping hand in the right direction.
A quick explanation of the various tables I'm dealing with:
WBS - the Work Breakdown Structure, for example: A - Widget 1, AA - Widget 1 Subsystem 1, and etc.
Impacts - the Risk or Opportunity impacts for the weights of a part/assembly. (See Assemblies have Impacts below)
Allocations - the review of the product in question, say Widget 1, in terms of various weight totals, including all parts. Example - September allocation, Initial Demo allocation, etc. Mostly used for weight history and trending
Parts - There are hundreds of Parts which will eventually lead to thousands. Each part has a WBS element. [Seems redundant, but parts are managed in-house, and WBS elements are cross-company and issued by the Government]
Parts have Allocations - For weight history and trending (see Allocations). Example, Nut 17 can have a September 1st allocation, a September 5th allocation, etc.
Assemblies - Parts are assemblies by themselves and can belong to multiple assemblies. Now, there can be multiple parts on a product, say, an unmanned ground vehicle (UGV), and so those parts can belong to a higher "assembly" [For example, there can be 3 Nut 17's (lower assembly) on Widget 1 Subsystem 2 (higher assembly) and 4 more on Widget 1 Subsystem 5, etc.]. What I'm concerned about is ensuring that the weight roll-ups are accurate for all of the assemblies.
Assemblies have Impacts - There is a risk and opportunity impact setup modeled into this design to allow for a risk or opportunity to be marked on a per-assembly level. That's all this table represents.
A part is allocated a weight and then assigned to an assembly. The Assemblies table holds this hierarchical information - the lower assembly and the higher one, both of which are Parts entries in the [Parts have Allocations] table.
Therefore, to ensure proper weight roll ups in the [Parts have Allocations] table on a per part-basis, I would like to check for any inserts, updates, deletes on both the [Parts have Allocations] table as well as the [Assemblies] table and then re-calculate the weight roll up for every assembly. Now, I'm not sure if this is a huge performance hog, but I do need to keep all the information as up-to-date and as accurate as possible. As such, I'm not sure which method is even correct, although it seems an AFTER DML trigger is in order (from what I've gathered thus far). Keep in mind, this trigger needs to go through and check every WBS or Part and then go through and check all of it's associated assemblies and then ensure the weights are correct by re-summing the weights listed.
If you need the design or create script (table layout), please let me know.
Thanks.
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Jul 20, 2005
Are there any limitations or gotchas to updating the same table whichfired a trigger from within the trigger?Some example code below. Hmmm.... This example seems to be workingfine so it must be something with my specific schema/code. We'reworking on running a SQL trace but if anybody has any input, fireaway.Thanks!create table x(Id int,Account varchar(25),Info int)GOinsert into x values ( 1, 'Smith', 15);insert into x values ( 2, 'SmithX', 25);/* Update trigger tu_x for table x */create trigger tu_xon xfor updateasbegindeclare @TriggerRowCount intset @TriggerRowCount = @@ROWCOUNTif ( @TriggerRowCount = 0 )returnif ( @TriggerRowCount > 1 )beginraiserror( 'tu_x: @@ROWCOUNT[%d] Trigger does not handle @@ROWCOUNT[color=blue]> 1 !', 17, 127, @TriggerRowCount) with seterror, nowait[/color]returnendupdate xsetAccount = left( i.Account, 24) + 'X',Info = i.Infofrom deleted, inserted iwhere x.Account = left( deleted.Account, 24) + 'X'endupdate x set Account = 'Blair', Info = 999 where Account = 'Smith'
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Dec 5, 2006
This Audit Trigger is Generic (i.e. non-"Table Specific") attach it to any tabel and it should work. Be sure and create the 'Audit' table first though.
The following code write audit entries to a Table called
'Audit'
with columns
'ActionType' //varchar
'TableName' //varchar
'PK' //varchar
'FieldName' //varchar
'OldValue' //varchar
'NewValue' //varchar
'ChangeDateTime' //datetime
'ChangeBy' //varchar
using System;
using System.Data;
using System.Data.SqlClient;
using Microsoft.SqlServer.Server;
public partial class Triggers
{
//A Generic Trigger for Insert, Update and Delete Actions on any Table
[Microsoft.SqlServer.Server.SqlTrigger(Name = "AuditTrigger", Event = "FOR INSERT, UPDATE, DELETE")]
public static void AuditTrigger()
{
SqlTriggerContext tcontext = SqlContext.TriggerContext; //Trigger Context
string TName; //Where we store the Altered Table's Name
string User; //Where we will store the Database Username
DataRow iRow; //DataRow to hold the inserted values
DataRow dRow; //DataRow to how the deleted/overwritten values
DataRow aRow; //Audit DataRow to build our Audit entry with
string PKString; //Will temporarily store the Primary Key Column Names and Values here
using (SqlConnection conn = new SqlConnection("context connection=true"))//Our Connection
{
conn.Open();//Open the Connection
//Build the AuditAdapter and Mathcing Table
SqlDataAdapter AuditAdapter = new SqlDataAdapter("SELECT * FROM Audit WHERE 1=0", conn);
DataTable AuditTable = new DataTable();
AuditAdapter.FillSchema(AuditTable, SchemaType.Source);
SqlCommandBuilder AuditCommandBuilder = new SqlCommandBuilder(AuditAdapter);//Populates the Insert command for us
//Get the inserted values
SqlDataAdapter Loader = new SqlDataAdapter("SELECT * from INSERTED", conn);
DataTable inserted = new DataTable();
Loader.Fill(inserted);
//Get the deleted and/or overwritten values
Loader.SelectCommand.CommandText = "SELECT * from DELETED";
DataTable deleted = new DataTable();
Loader.Fill(deleted);
//Retrieve the Name of the Table that currently has a lock from the executing command(i.e. the one that caused this trigger to fire)
SqlCommand cmd = new SqlCommand("SELECT object_name(resource_associated_entity_id) FROM
ys.dm_tran_locks WHERE request_session_id = @@spid and resource_type = 'OBJECT'", conn);
TName = cmd.ExecuteScalar().ToString();
//Retrieve the UserName of the current Database User
SqlCommand curUserCommand = new SqlCommand("SELECT system_user", conn);
User = curUserCommand.ExecuteScalar().ToString();
//Adapted the following command from a T-SQL audit trigger by Nigel Rivett
//http://www.nigelrivett.net/AuditTrailTrigger.html
SqlDataAdapter PKTableAdapter = new SqlDataAdapter(@"SELECT c.COLUMN_NAME
from INFORMATION_SCHEMA.TABLE_CONSTRAINTS pk ,
INFORMATION_SCHEMA.KEY_COLUMN_USAGE c
where pk.TABLE_NAME = '" + TName + @"'
and CONSTRAINT_TYPE = 'PRIMARY KEY'
and c.TABLE_NAME = pk.TABLE_NAME
and c.CONSTRAINT_NAME = pk.CONSTRAINT_NAME", conn);
DataTable PKTable = new DataTable();
PKTableAdapter.Fill(PKTable);
switch (tcontext.TriggerAction)//Switch on the Action occuring on the Table
{
case TriggerAction.Update:
iRow = inserted.Rows[0];//Get the inserted values in row form
dRow = deleted.Rows[0];//Get the overwritten values in row form
PKString = PKStringBuilder(PKTable, iRow);//the the Primary Keys and There values as a string
foreach (DataColumn column in inserted.Columns)//Walk through all possible Table Columns
{
if (!iRow[column.Ordinal].Equals(dRow[column.Ordinal]))//If value changed
{
//Build an Audit Entry
aRow = AuditTable.NewRow();
aRow["ActionType"] = "U";//U for Update
aRow["TableName"] = TName;
aRow["PK"] = PKString;
aRow["FieldName"] = column.ColumnName;
aRow["OldValue"] = dRow[column.Ordinal].ToString();
aRow["NewValue"] = iRow[column.Ordinal].ToString();
aRow["ChangeDateTime"] = DateTime.Now.ToString();
aRow["ChangedBy"] = User;
AuditTable.Rows.InsertAt(aRow, 0);//Insert the entry
}
}
break;
case TriggerAction.Insert:
iRow = inserted.Rows[0];
PKString = PKStringBuilder(PKTable, iRow);
foreach (DataColumn column in inserted.Columns)
{
//Build an Audit Entry
aRow = AuditTable.NewRow();
aRow["ActionType"] = "I";//I for Insert
aRow["TableName"] = TName;
aRow["PK"] = PKString;
aRow["FieldName"] = column.ColumnName;
aRow["OldValue"] = null;
aRow["NewValue"] = iRow[column.Ordinal].ToString();
aRow["ChangeDateTime"] = DateTime.Now.ToString();
aRow["ChangedBy"] = User;
AuditTable.Rows.InsertAt(aRow, 0);//Insert the Entry
}
break;
case TriggerAction.Delete:
dRow = deleted.Rows[0];
PKString = PKStringBuilder(PKTable, dRow);
foreach (DataColumn column in inserted.Columns)
{
//Build and Audit Entry
aRow = AuditTable.NewRow();
aRow["ActionType"] = "D";//D for Delete
aRow["TableName"] = TName;
aRow["PK"] = PKString;
aRow["FieldName"] = column.ColumnName;
aRow["OldValue"] = dRow[column.Ordinal].ToString();
aRow["NewValue"] = null;
aRow["ChangeDateTime"] = DateTime.Now.ToString();
aRow["ChangedBy"] = User;
AuditTable.Rows.InsertAt(aRow, 0);//Insert the Entry
}
break;
default:
//Do Nothing
break;
}
AuditAdapter.Update(AuditTable);//Write all Audit Entries back to AuditTable
conn.Close(); //Close the Connection
}
}
//Helper function that takes a Table of the Primary Key Column Names and the modified rows Values
//and builds a string of the form "<PKColumn1Name=Value1>,PKColumn2Name=Value2>,......"
public static string PKStringBuilder(DataTable primaryKeysTable, DataRow valuesDataRow)
{
string temp = String.Empty;
foreach (DataRow kColumn in primaryKeysTable.Rows)//for all Primary Keys of the Table that is being changed
{
temp = String.Concat(temp, String.Concat("<", kColumn[0].ToString(), "=", valuesDataRow[kColumn[0].ToString)].ToString(), ">,"));
}
return temp;
}
}
The trick was getting the Table Name and the Primary Key Columns.
I hope this code is found useful.
Comments and Suggestion will be much appreciated.
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Oct 30, 2007
Table 1
First_Name
Middle_Name
Surname
John
Ian
Lennon
Mike
Buffalo
Tyson
Tom
Finney
Jones
Table 2
ID
F
M
S
DOB
1
Athony
Harold
Wilson
24/4/67
2
Margaret
Betty
Thathcer
1/1/1808
3
John
Ian
Lennon
2/2/1979
4
Mike
Buffalo
Tyson
3/4/04
5
Tom
Finney
Jones
1/1/2000
I want to be able to create a trigger that updates table 2 when a row is inserted into table 1. However I€™m not sure how to increment the ID in table 2 or to update only the row that has been inserted.
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Feb 5, 2008
A
ID
Name
1
Joe
2
Fred
3
Ian
4
Bill
B
ID
1
4
I want to be able to create a trigger so that when a row is inserted into table A by a specific user then the ID will appear in table B. Is it possible to find out the login id of the user inserting a row?
I believe the trigger should look something like this:
create trigger test_trigger
on a
for insert
as
insert into b(ID)
select i.id
from inserted i
where
--specific USER
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Mar 18, 2008
how to create new CLR trigger from existing T-Sql Trigger Thanks in advance
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Jul 23, 2005
When a row gets modified and it invokes a trigger, we would like to beable to update the row that was modified inside the trigger. This is(basically) how we are doing it now:CREATE TRIGGER trTBL ON TBLFOR UPDATE, INSERT, DELETEasupdate TBLset fld = 'value'from inserted, TBLwhere inserted.id= TBL.id....This work fine but it seems like it could be optimized. Clearly we arehaving to scan the entire table again to update the row. But shouldn'tthe trigger already know which row invoked it. Do we have to scan thetable again for this row or is their some syntax that allows us toupdate the row that invoked the trigger. If not, why. It seems likethis would be a fairly common task. Thanks.
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Jul 20, 2005
Salve, non riesco a disabilitare un trigger su sqlserver nè da queryanalyzer, nè da enterprise manager.In pratica tal cosa riuscivo a farla in Oracle con TOAD, mentre qui nonriesco.Mi interessa disattivarlo senza cancellarlo per poi riattivarlo al bisognosenza rilanciare lo script di creazione.Grazie a tuttiHi I need to disable a DB trigger and I'm not able to do this neither withquery analyzer, neither with enterprise manager.I remeber this job was quite simple using TOAd in Oracle.I'm interested in making it disabled not delete it, without run creationscript.Thanks a lot to everybody.
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May 30, 2008
Hi,
I am not sure if this is the right forum to post this question.
I run an update statement like "Update mytable set status='S' " on the SQL 2005 management Studio.
When I run "select * from mytable" for a few seconds all status = "S". After a few seconds all status turn to "H".
This is a behaviour when you have an update trigger for the table. But I don't see any triggers under this table.
What else would cause the database automatically change my update?
Could there be any other place I should look for an update trigger on this table?
Thanks,
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Sep 20, 2007
Hi all in .net I've created an application that allows creation of triggers, i also want to allow the deletion of triggers.
The trigger name is kept in a table, and apon deleting the record i want to use the field name to delete the trigger
I have the following Trigger
the error is at
DROP TRIGGER @DeleteTrigger
I'm guessing it dosen't like the trigger name being a variable instead of a static name
how do i get around this?
thanks in advance
-- ================================================
-- Template generated from Template Explorer using:
-- Create Trigger (New Menu).SQL
--
-- Use the Specify Values for Template Parameters
-- command (Ctrl-Shift-M) to fill in the parameter
-- values below.
--
-- See additional Create Trigger templates for more
-- examples of different Trigger statements.
--
-- This block of comments will not be included in
-- the definition of the function.
-- ================================================
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: <Author,,Name>
-- Create date: <Create Date,,>
-- Description: <Description,,>
-- =============================================
CREATE TRIGGER RemoveTriggers
ON tblTriggers
AFTER DELETE
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
Declare @DeleteTrigger as nvarchar(max)
select @DeleteTrigger = TableName FROM DELETED
IF OBJECT_ID (@DeleteTrigger,'TR') IS NOT NULL
DROP TRIGGER @DeleteTrigger
GO
END
GO
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Jan 23, 2008
Hi,
I have a trigger set on TABLE1 so that any update to this column should set off trigger to write to the AUDIT log table, it works fine otherwise but not the very first time when table1 has null in the column. if i comment out
and i.req_fname <> d.req_fname from the where clause then it works fine the first time too. Seems like null value of the column is messing things up
Any thoughts?
Here is my t-sql
Insert into dbo.AUDIT (audit_req, audit_new_value, audit_field, audit_user)
select i.req_guid, i.req_fname, 'req_fname', IsNull(i.req_last_update_user,@default_user) as username from inserted i, deleted d
where i.req_guid = d.req_guid
and i.req_fname <> d.req_fname
Thanks,
leo
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Mar 3, 2008
I have trigger, but not execute somedata because insert few row in every second. I use java to insert data to SQL server 2005. Data inserted to a table but not executing trigger for some data.
For example 100 data every second inserted to a table.
If insert data one by one to a table trigger fires success.
Please Help me.
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Jun 17, 2006
There are two different Stored Procedures insert data into a table, is it possible to catch what stored procedure name was that trigged the trigger in the trigger?
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Jul 26, 2006
Hi, I am trying to script a trigger on a table to accomplish the following... If a row is updated then the value in the 'date' column in that specific row would update to getDate().
I have never created a trigger before and finding it very difficult. Thank you very much in advance.
Kind Regards,
Sean.
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Feb 4, 2007
Hello
I am having difficulty try to get a trigger to work.
I need to create a trigger querie that will insert a row from TableMain (Column LNames) table to TableA (Column LNames)
Below is my querie
CREATE TRIGGER [trig_addTable_A]ON Table_A FOR INSERT ASINSERT LName (LName)
SELECT LNameFROM TableMain inserted
I have inserted test names into the main table but nothing in table A has inserted. What have I done wrong.
Thanks
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Mar 11, 2007
I am looking for a INSERT trigger example, to achieve the following objective:
I would like the trigger to be fired when a row gets inserted into a table. I want to retrive some value from the inserted row and use this value to insert a new row in table 2.
Thanks
chri
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Mar 17, 2007
is it possible to run a trigger forever... whose work is to archive data from a table. or how can i do the operation to archive automatically ?Regards,Kamrul Hassan
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Aug 14, 2007
Hi,
Does anybody know how could I define a for each row trigger in sql Server 2005?
What I need to do is before inserting in the table look through the rows to check wheter that value overlaps with the others.
"Overlap" means that this value cannot be betweent the values fo two different columns, that is why I need to go through all the table.
In case that was not possible, I propose the following, load the table in a dataset and check the constraint with a for loop despite of the performance could be decreased.
Any suggestion?.
Thanks in advance.
Cheers.
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Aug 28, 2007
Hi everybody
I work on a Project that has Inbox .
I need that if a record has inserted in inbox system alert to user that view it's inbox .
The suitable solution for it seems trigger ,but i don't how trigger could communicate with Application.
Thanks for any guides.
Best Regard
A.Doroudian
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Nov 28, 2007
hi .... I am going to use trigger first time.
my secnerio is that I want a common column in five tables on the insertion of a row in a particular table..
question is simple ..... can I do that????????????????????
thanks in advance.
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