Retrieving Code From A Trigger In The Database
May 12, 2006
I have inherited a database and with it a set of triggers that are 'apparently' installed. However I have a number of different 'versions' for a specific update trigger and it is not clear from the files which is the latest, hence I am unsure of what 'version' of the trigger is installed in the database itself.
I am trying to retrieve the trigger code from the databse so that i can correctly determine which one of my trigger files is the latest version.
I don't want to end up in a situation where an earlier version of the update trigger is installed as this could wreck the underlying data.
I have tried using the syscomments.text column that relates to the trigger but it only gives me a concatenated version of the sql code and not enough to determine which file version was used for the trigger.
Is there a way of retreiving the entire SQL code that was entered rather than just the first few lines?
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Nov 29, 2007
VWD 2005 Express. I need to retrieve a value from a SQL database from the code behind a page and assign it to a variable. In Microsoft Access I can do this using the DLookup function. What I need to do is get the data that results from the following query into a variable:
SELECT [SystemUserId] FROM [SystemUser] WHERE ([Username] = @Username)
The name of the data source is SqlDataSource2
Also, in Access I can create a recordset from a query and then process through the recordset. Can that be done in VB code in VWD 2005 Express?
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Dec 21, 2004
Hi there folks,
was just wondering if there was an easy way to include a files contents into a web page via a database field. A bit confusing i know.
Here goes:
I got a field called ContentPage stored in a database. (e.g Index.htm)
I want to retrieve this page and then include its contents in my middle div of the webpage like so: <!--#include file="<%=ContentPage%>"-->. Not allowing me to do this as you may have guessed. These pages will either be htm or aspx pages. This would make my life so much easier.
Is there any way of doing this or am i kidding myself.
Would appreciate any help.
Paul
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Aug 24, 2007
Hi there,
Values in my database need to updated periodically. The code, upon starting the application, queries the database and stores the values in the Application collection. This is to avoid making a database call everytime the values are needed (increases performance). The drawback is that changes to the database values are not updated in the code.
How can I create a database trigger that will update the C# Application colllection whenever a table value is updated?
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Jul 28, 2006
This error occurs when the ActiveX task tries to execute:
[ActiveX Script Task] Error: Retrieving the file name for a component failed with error code 0x001B6438.
Anybody know how to troubleshoot these errors? I can't find anything on this error code. The same script works in DTS.
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Jul 14, 2006
I have table T1 and I am trying to extract some date from T1 table based on inserts, updates and deletes. The destination table T2 has three fields F1, F2, F3, so I need something like
Insert into T2 (F1, F2, F3)
Select (F1, F2,Type)
From T1
Type should be defined based on Insert, Update, or Delete. This will be my first trigger, Can anyone write this trigger for me?
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Jun 14, 2008
How can I write a trigger for the below issue,
I have table named Subscribers with fields Name (varchar), MobileNumber (varchar), status (char). Here if I want to insert a record into this table then first I need to check whether this mobile number exist or not in this table. If it is not exist then this record should be insert and if it is exist then this record should not be insert in to this table.
How can I do a trigger for this one?
with regards
Shaji
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Aug 26, 2007
CREATE TRIGGER tr_1
ON Users
FOR UPDATE OF u_paid
AS
BEGIN
..........
END
any idea what is wrong with the above code?
The users table exist and u_paid is a column in that table.
Im getting the following error:
Incorrect syntax near the keyword 'OF'.
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Jul 20, 2005
Am using SQL Server 2000 on WINXP Pro. Have a requirement to change someOracle triggers to SQL 2000. I have modied this one Insert Trigger, but getan error when I attempt to compile:CREATE TRIGGER trg_ins_attend_audit_logON ATTENDAFTER INSERT-- Insert Trigger for SQL ServerASDECLAREBEGINInsert ATTEND_AUDIT_LOGSelect licnum,lic_suffix,als_hsp_id,last_name,first_name,mid_name,birth_date,sex,serv1,serv2,serv3,paid_vol,amb_res,street1,street2,town,state,zipcode,phone,lic_year,print_lic,lic_exp,send_hx,user_id,getdate(),"I",modifiedfrom insertedENDERROR:Incorrect syntax near "AS."Can anyone point out the error of my ways here??
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Jul 14, 2006
I have table T1 and I am trying to extract some date from T1 table based on inserts, updates and deletes. The destination table T2 has three fields F1, F2, F3, so I need something like
Insert into T2 (F1, F2, F3)
Select (F1, F2,Type)
From T1
Type should be defined based on Insert, Update, or Delete. This will be my first trigger, Can anyone write this trigger for me?
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Jun 4, 2007
Hello all
I've been thrown in at the deep end by the manager and asked to use a SQL database for a new site. I've managed to get most of the code working but are having trouble with this particular one.
The idea is that a user can log a fault (online) and that this gets added to a table. Once the data is added a trigger fires that takes this new data and loops through an "e-mail alert" table containing settings for different department managers and then stores the relevant manager name in a separate table (e-mail sent fromt this table to the manager) once the department and fault id's match.
I have the following code (which is by no means good) in my trigger - did I says this is my first outing into SQL land!!ALTER TRIGGER [dbo].[usd_emailalertqueue]
ON [dbo].[FaultPostings] AFTER INSERT
AS
-- declare variables from new fault table
DECLARE @iDeptID intDECLARE @iFaultID intDECLARE @iReferenceID int
-- declare variables from email alerts tableDECLARE @Managername nvarchar(255)DECLARE @DeptID intDECLARE @FaultID intDECLARE @ReferenceID int
-- Read in values new fault tableSELECT @sParam = FaultDescription FROM INSERTEDSELECT @iFaultID = FaultID FROM INSERTEDSELECT @iDeptID = DeptID FROM INSERTEDSELECT @iReferenceID = ReferenceID FROM INSERTED
BEGIN
-- Read values from saved e-alertsSELECT @Managername = Managername FROM [dbo].[emailAlerts]SELECT @DeptID = DeptID FROM [dbo].[emailAlerts]SELECT @FaultID = FaultID FROM [dbo].[emailAlerts]
INSERT INTO EmailAlertQueue(ReferenceID,Managername)SELECT @iReferenceID, @Managername
FROM [dbo].[emailAlerts] WHERE (@iDeptID = @Deptid) AND (@iFaultID = @Faultid) then END
At the moment, this is what happens when a fault is added: the EmailAlertQueue table gets populated with the name of the last managername from the emailAlerts table several times (only if the Dept and Fault id's macth otherwise nothing gets populated.. e.g. if there at 4 alerts setup in the EmailAlerts table with different dept and fault ID's but the last one matches the criteria the emailAlerts table is uotaed with 4 rows containing the managername. (Hope this makes sense).
I think I need to have some sort of loop but so far as I can tell a "For Each" loop doesn't work in triggers (i could be wrong though).
(I'm not even sure if this is the correct approach to take)
As usual, any help is appreciated.
Thanks
Chooch
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Mar 11, 2005
Does anyone have code for a trigger that when the user deletes the record trigger it to insert into another table? Thanks in advance and appreciate your help!
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Apr 21, 2006
Hi.
I am trying to get the schema in which the trigger is created within the CLR code.
1)create a new schema MySchema.
2) created a table MySchema.MyTable
3) created the assembly and trigger ( create trigger MySchema.MyTrigger on MySchema.MyTable..... ) Trigger writes to another table MySchema.MyLog.
Code works fine if I hardcode Myschema.MyLog in the CLR but fails when I say just MyLog.
So how do dynamically get the trigger's schema name ?
Thanks for your help.
Nach
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Apr 3, 2008
Hi,
Please can anyone help me code the trigger below. I have had errors pointing to "sp_configure 'SQL Mail XPs', 1;" and "RECONFIGURE", that this lines should be not where I have placed them. I have tried other combinations and have not worked at all! Is any other ways I can achieve this all?
Code Snippet
CREATE TRIGGER reminder
ON Bug_Report
FOR INSERT, UPDATE, DELETE
AS
sp_configure 'SQL Mail XPs', 1;
EXEC master..xp_sendmail 'MaryM',
'Don't forget to print a bug report.'
RECONFIGURE
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Aug 2, 2006
I would like to create a script that lists out all of the SQL code for the procedures and triggers I have created in a database.
What I want to do is save the code for each procedure/trigger as a *.SQL file without having to open up each one in Enterprise Manager and save them individually.
Listing the names is easy by looking in sysobjects, but is the SQL code stored in a system table anywhere?
Does anybody have any alternative approach to this problem?
Thanks in advance,
Mark
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Jun 26, 2007
I've been searching for a bit but I can't seem to find a difinitive answer.
Can an SQL Server trigger call native C/C++ functions? If so, what is the mechanism?
Thanks in advance.
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Apr 22, 2007
Hi Everyone, I m using ASP.NET 2005 with C# and SQL SERVER 2005. I m using stored procedure and sql datasource control to retrieve the data. I want to use the trigger alongwith storedprocedure. I have created the following trigger on emp_table. CREATE TRIGGER Employeee on emp_tableAFTER DELETE ASDECLARE @empid int SELECT @empid=empid from emp_table where locationid=(SELECT locationid from deleted)IF @@ROWCOUNT=0 DELETE FROM location_table where locationid=(SELECT locationid from deleted)What i wanted to know is how can i use it with asp.net and sql server 2005 when any update,delete or insert query is executed thru the stoed procedure...What code is required to use the trigger with the application of .NET thanxs.....
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May 7, 2008
I have a database trigger that is set to call a CLR trigger/stored proc when a certain field in a table is updated. The issue is that if i execute the stored proc manually in enterprise studio, it works perfectly but the same call made through the trigger does not go through. A few more details -
I have CLR integration enabled on the sql server.
The dbo has UNSAFE ASSEMBLY rights
I have the both the assembly and the serialized dll imported in the database.
Here's the definition of the stored proc -
CREATE PROCEDURE [dbo].[WriteXMLNotification]
@TaskID [nvarchar](20)
WITH EXECUTE AS CALLER
AS
EXTERNAL NAME [DataInterfaceWebServices].[TaskUpdateXMLWriter.WriteXMLNotification].[run]
and the trigger -
CREATE TRIGGER [dbo].[tr_Task_U]
ON [dbo].[_Task]
FOR UPDATE, INSERT AS
IF UPDATE (TaskType_Status) OR UPDATE (TaskType) OR UPDATE (TaskType_SubType1)
BEGIN
SET NOCOUNT ON;
DECLARE @status AS INT
DECLARE @taskType AS INT
DECLARE @taskSubType AS INT
DECLARE @taskID as sysname
DECLARE @cmd as sysname
DECLARE @parentTask as sysname
DECLARE @NotificationXMLTaskID as sysname
SELECT @status = [TaskType_Status] FROM inserted
SELECT @taskType = [TaskType] FROM inserted
SELECT @taskSubType = [TaskType_SubType1] FROM inserted
SELECT @taskID = [TaskID] FROM inserted
SELECT @parentTask = [Parent_TaskID] FROM inserted
SELECT @NotificationXMLTaskID = [MCCTaskID] FROM _TaskNotificationXML WHERE [MCCTaskID] = @parentTask
IF (@status = 2602) AND (@taskType = 2282) AND (@taskSubType = 19500)
BEGIN
exec WriteXMLNotification @taskID;
END
ELSE IF (@taskType = 2285) AND (@parentTask IS NOT NULL) AND (@NotificationXMLTaskID IS NOT NULL)
BEGIN
exec WriteXMLNotification @parentTask;
END
END
I stepped into the trigger and it seems to execute the line " exec WriteXMLNotification @taskID;" but nothing happens, but if I run that same line manually, it works. Could it be that the impersonation by the EXECUTE AS clause is causing it to fail?
Please advise!
Thanks in Advance,
-Mihir Sonalkar.
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Sep 6, 2007
My goal is to create a trigger to automatically set the value for a status id on a table based on set criteria. Depending on the values of other fields will determine the value that the status id field is assigned. So far, I have written the trigger to update the status id field and I go through a seperate Update statement for each status id value. The problem is that I can't get this to work at the record level. The problem that I am getting is that if I have 50 records in TABLE1 and at least one of them satisfies the where clause of the update statement, all of the records get updated. So, using these two update statements, all of my records end up with a status value of '24' because that was the last update statement run in the trigger. Here is the code I have so far:
CREATE TRIGGER dbo.JulieTrigger1
ON dbo.Table1
AFTER INSERT,UPDATE
AS
BEGIN
BEGIN TRY
/*Update Table1.Status to POTENTIAL (id 23) status */
UPDATE TABLE1
SET status_id = 23
WHERE EXISTS (SELECT *
FROM TABLE1 a INNER JOIN TABLE2 b
ON b.order_id = a.order_id
WHERE a.start_dt IS NULL
AND b.current_status_ind = 1
AND b.lead_status_id NOT IN (15,16)
AND a.order_id = TABLE1.order_id)
/*Update Table1.Status to ACTIVE (id 24) status */
UPDATE TABLE1
SET status_id = 24
WHERE EXISTS (SELECT *
FROM TABLE1 a
WHERE fill_ind = 1
AND (end_dt IS NULL OR end_dt > getdate() )
AND a.job_order_id = TABLE1.job_order_id)
END TRY
BEGIN CATCH
DECLARE @ErrorMessage NVARCHAR(4000);
DECLARE @ErrorSeverity INT;
DECLARE @ErrorState INT;
SELECT
@ErrorMessage = ERROR_MESSAGE(),
@ErrorSeverity = ERROR_SEVERITY(),
@ErrorState = ERROR_STATE()
IF @@TRANCOUNT > 0
ROLLBACK TRAN
-- Return the error to the calling object
RAISERROR (@ErrorMessage, -- Message text.
@ErrorSeverity, -- Severity.
@ErrorState -- State.
)
END CATCH
SET NOCOUNT ON;
END
GO
Thanks in advance for any help!
-Julie
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Sep 24, 2007
I am now retrieving the PDF from the database and I am getting an error:
Error 1 'GetImages.GetImage(int)': not all code paths return a value
I have:
int imageid = Convert.ToInt32(Request.QueryString["ACTUAL_IMAGE_PDF"]);
And...
private SqlDataReader GetImage(int imageid)
{
Sql Statement...
}
Could someone help please??
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Jul 3, 2007
Ok, again, I'm reasonably new to this. I've been trying to display an image stored in SQL in a ASP.NET page. Pretty simple stuff I would have thought. I've read countless examples of how to do this online, and many of them use the same method of displaying the image, but none seem to work for me. The problem seems to lie in the following line of code:
Dim imageData As Byte() = CByte(command.ExecuteScalar())Which always returns the error: Value of type 'Byte' cannot be converted to '1-dimensional array of Byte'.Here's the rest of my code, hope someone can help. It's doing my head in!
Imports System.Data.SqlClient
Imports System.Data
Imports System.Drawing
Imports System.IOPartial Class _ProfileEditor
Inherits System.Web.UI.PageProtected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
'Get the UserID of the currently logged on user Dim NTUserID As String = HttpContext.Current.User.Identity.Name.ToString
Session("UserID") = NTUserID
Dim Photo As Image = NothingDim connection As New SqlConnection(ConfigurationManager.ConnectionStrings("MyConnectionString").ConnectionString)
Dim command As SqlCommand = connection.CreateCommand()
command.CommandText = "SELECT Photograph, ImageType FROM Users WHERE UserID = @UserID"command.Parameters.AddWithValue("@UserID", NTUserID)
connection.Open()Dim imageData As Byte() = CByte(command.ExecuteScalar())Dim memStream As New MemoryStream(Buffer)
Photo = Image.FromStream(memStream)
End Sub
End Class
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Sep 22, 2007
Dear Friends,
I have read many solution over the net, but since I am unable to utilize anyone according to my needs I am seeking help from you people.
I have a table imagedata in sql server 2005 having fields name and imageperson. Name is string and imageperson is Image field. I have successfully stored name of the person and his image in database.
I have populated the dataset from codebehind and bind it to the repeater.
By writing <%# DataBinder.Eval(Container.DataItem, "name")%>I am a able to retrieve the name of the person. But when I pass photodata as
<%#photogen((DataBinder.Eval(Container.DataItem, "imageperson")))%>
where photogen is function in code behind having structure
public void photogen(byte[] dataretrieved)
{
Response.BinaryWrite(datarerieved)
}
But it is giving error at <%#photogen((DataBinder.Eval(Container.DataItem, "imageperson")))%>
The best overloaded method match for '_Default.photogen(byte[])' has some invalid arguments
AND
Cannot convert object to byte[].
Can anyone please provide me working solution with code for aspx page and code behind.
Thanks and regards
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Mar 25, 2008
Hi everyoneI created a database graphically in VS2005.Now I want the text version of those DDL(create) commands. Question is where and how are those commands stored in SqlServer I have the management studio too. Any ideas??
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Jun 10, 2008
Hi.
I've been traling the forum and the internet for a striaghtr forward solution on this.
I'm trying to do what loads of people have already achieved: retrive images from an SQL database.
I have successfully uploaded inages to an "iamges" table, storing the image as SQL type "image", also storing size, type, description, name etc.
I want to be able to read one or more of these images (and other data) back from the table.
I'm using C#, ASP NET 2.0, SQL,
Any examples I've found needed a lot of tweaking, and for some reason or other didn't work!
Please don;t just pose yet another URL to an example - I've probably tried it and failed already.
I don't mind if I display the images in a GridView or just within an aspx page.
Ideally I'd be able to dispaly a few images on a page.
I know how to read and display the rest of the data in the "images" table.
Can anyone help please?
Do you need more info?
Thanks in advance,
Garrett
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Jan 16, 2004
hi,
I have a SQL database that has Images stored. I am able to read the image from the database and display it. But i am not able to control the size and the position where it is displayed. I want to develop something like a photo album. the images should be displayed in a smaller size. but when the user clicks on the image, it should blow up to its original size.
I am struggling with this for some time. Any suggestions as how to develop it??.
Any help in this regard would be highly appreciated.
thanks,
-sriram
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Nov 23, 2004
hello
i want to know if there is any way to retrieve all the tables for a Database programmatically.
i want to connect to a server and select a database .then by selecting the database all it's tables be loaded into a ComboBox(for example)..the tables name i mean.
i want to give the user the option to select a table from a database.if it is possible help me
my programming language is C#.Net
any information is appereicated
Somayeh
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Jun 5, 2007
Hi, I've been trying to write an sql statement that can output the 10 minimum entries from a database, but I can't figure out how to do it.
Any help?
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Jun 4, 2006
Hi all,
I am working on a project on PocketPC in which it is required to reteive data from database. I have created database on simulator as .sdf file. I want to retreive data from eVC++ code. How i can do so?
thanx
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Sep 18, 2007
Heres my requirement from a financial analysis im doing...I have just calculated an industry averages on financial ratios...Now i wanna upload this industry average to the system...so that I can compare it to the individual companies' averages after calculating a particular company's average; meaning i wanna be able to call the industry average of a particular ratio (eg Current Ratio) after calculating a company's corresponding ratio...Is there a code fragment i can use for this ?? Thanks in advance...Adam
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Sep 8, 2003
Hi,
I want to get information about all the indexes in a database.
Can any one suggest me a query for this.
Thanks.
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Oct 5, 2006
hi,
here i had created a database named "books" and it contains 8tables in sql server 2005. now i want to take a copy of this "books" database in another system which also have sql server2005 as a back end to asp.net. so where i can get this "books". i.e in which folder it will be saved. is it possible to svae this databse or have to svae each queries by which i created tables?
One can never consent to creep,when one feels an impulse to soar
RAMMOHAN
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Apr 9, 2007
I've played with various configurations of the MS SQL Server encryption functionality, and come across an embarrassingly easy question that I cannot seem to resolve. How do I retrieve the actual symmetric and asymmetric keys out of the database?
I'd like to explore the possibility of off-loading the encryption/decryption work from the database server to a load-balanced pool of servers. For this model to work the pool would need access to the keys. The symmetric keys currently are generated with the command...
create symmetric key EncryptionKey211
with algorithm = AES_256
ENCRYPTION BY certificate CreditCardCert
Am I missing something obvious here?
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Jan 7, 2008
OK, this is the scenario. I have a database with many columns ( each a mean value and a standard deviation, and with it a set of coordinates that i want to retrieve ).
Then i have a value that i want to query with the database, by comparing it with the mean and its standard deviation, and it should return a few sets (lets say 2) of coordinates whereby the the value of the mean is closet to the one in the database, in order of nearest value. How should i do it, since i am not using the exact value of the mean in the database?
I know its a bit confusing the way i wrote, but anyone understand wat i am trying to say and can help, i am very grateful. I had googled around for answers but cannot find. Thanks.
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