The table in the database has a field called LabID. That field is an
integer and consists of the year plus a counter. For example, the
first record of 2006 would be "20060001," the second record of 2006
would be "20060002" and so on. I'm trying to create an Insert trigger
that can generate the ID value when a new record is inserted, but I'm
not quite sure how to implement that trigger. Can anyone help?
I have create a recursive triggers in tblIncident. The PKID is the primary key in tblIncident, in this trigger, i'm trying to generate an auto increament primary key from the stored procedure GetMaxId and update to tblINcident, but I face a problem where PKID does not refresh the latest PKID, it always show the default value 0, until I requery the table. How to get the latest PKID?
/* Trigger in tblIncident */ CREATE TRIGGER GetPKID ON tblIncident FOR INSERT AS DECLARE @PKID int DECLARE @NEWVALUE int DECLARE PKID_Cursor CURSOR FOR SELECT tblIncident.PKID FROM tblIncident, inserted where tblIncident.PKID = Inserted.PKID OPEN PKID_Cursor BEGIN FETCH NEXT FROM PKID_Cursor INTO @PKID
WHILE (@@fetch_status = 0) BEGIN SET @NEWVALUE = 0 /*Call stored procedure - getmaxid to get the latest PKID */ EXECUTE GetMaxId "IN", @NEWVALUE OUTPUT Update tblIncident SET PKID = @NEWVALUE WHERE PKID = @PKID
Hello everybody,I was configuring a SqlDataSource control using SQL Authentication mode.I first added a database file (testdb.mdf) through Solution Explorer-Add New Items. Then through Database Explorer I created a table named "info"Then while configuring the SqlDataSource control I used the SQL Authentication mode and attached the "testdb.mdf" database file.Test Connection showed success. But when I hit the Ok button of the wizard it displayed the following error message:Failed to generate a user instance of SQL Server. Only an integrated connection can generate a user instance.While configuring the SqlDataSource control I clicked "New Connection". Under Data Source section I tried both Microsoft SQL Server and Microsoft SQL Server Database File. And in both the cases I attached a databese file(testdb.mdf). Plz enlighten me on this.Thanks and Regards,Sankar.
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.
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'
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.
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.
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)
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.
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.
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,
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?
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
Hi! When MS published starter kits there were files .sql in App_Data. This files contained some sample data for a DB. How to create such files when I have database with data ? Jarod
One of my first tasks on my current project was to generate all of the SQL scripts needed to rebuild the database. Of course, one of the catches was that everything needed to be separated out (table columns in different script from PKs different from FKs different from DEFAULTs, etc., etc.). And we wanted our own comment block inserted. So, I couldn't just use the Generate SQL Script from Enterprise Manager and be done with it. I was going to need to do some more work. Well, here's one of the scripts I wrote to build the FK scripts. Execute this script, then copy & paste the results into a new window. Break apart into separate .sql files as desired.
NOTE: Be sure to show results in Text (not grid) and change the display options in QA to return more than just 256 characters.
/*************************************************************************************************** Author: Mark Caldwell Date: 11/15/2002 Descrip: Generate scipt commands to ADD FOREIGN KEY CONSTRAINTS for constraints already in DB.
NOTE: Be sure to set your Tools/Options/Results/Maximum Characters per column to a large enough number (such as 2000) to display the entire command. ***************************************************************************************************/
SELECT '---------------------------------------------------------------------------------------------------- -- ' + so2.name + ' to ' + so3.name + ' ---------------------------------------------------------------------------------------------------- IF OBJECTPROPERTY(OBJECT_ID(N''' + so1.name + '''), ''IsForeignKey'') = 1 BEGIN ALTER TABLE ' + so2.name + ' DROP CONSTRAINT ' + so1.name + ' PRINT '' -- DRP - ' + so1.name + ''' END G' + 'O
' FROM sysforeignkeys sfk JOIN sysobjects so1 on sfk.constid = so1.id JOIN sysobjects so2 on sfk.fkeyid = so2.id JOIN sysobjects so3 on sfk.rkeyid = so3.id JOIN INFORMATION_SCHEMA.COLUMNS ISC1 on so2.name = ISC1.TABLE_NAME AND sfk.fkey = ISC1.ORDINAL_POSITION JOIN INFORMATION_SCHEMA.COLUMNS ISC2 on so3.name = ISC2.TABLE_NAME AND sfk.rkey = ISC2.ORDINAL_POSITION ORDER BY so2.name
The web site I am building is working fine locally, but I am hitting some problems with setting it up on a remote hosting server.First off, how can I generate the sql script to populate the SQL db on the remote server?I am using VS 2005 Standard. Do I need to d/l the SQL Server Express?Once I get that going, I should be able to figure out the rest...but I'll prolly have another question or two.Thanks
i need to auto generate the user id in id colunm in my sqldatabase table.i want it to generate in this fashion.(mycompanyname-todaydate-number.)eg (ibm-15thfeb-1) (ibm-15thfeb-2) (ibm-16thfeb-1)here i need this user id to be automatically displayed in my web form when doing registration of new user,then only after clicking the savebutton i want all the data along with user id to be inserted into the table in sqldatabase.thanksjack.
Hi, I have a question, I have created a table and with a primary key called "ID". However, I want the "ID" be auto increment as well. when inserting new record into the database.I'm using vb.net. how can I do in the following format: "1", "2", "3", ............ etc. I've the code below but it's not working in the right way, what's wrong with my code? Private Sub BtnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click Dim ssql As String Dim Itemid As Integer Dim updcmd As SqlClient.SqlCommand Itemid = 0 mysqladap = New SqlClient.SqlDataAdapter("select MAX(Item_id) From auction where item_type= '" & (Image1.ImageUrl) & "'", mySqlConn) Itemid = (Itemid) + 1 ssql = "insert into auction (item_id,owner_name,owner_mail,owner_mobile,owner_phone,owner_ext,item_type,item_name,item_image,item_desc,item_cost,start_date) values ('" & (Itemid) & "','" & Trim(ownertxt.Text) & "' ,'" & Trim(emailtxt.Text) & "', '" & Trim(mobiletxt.Text) & "', '" & Trim(phonetxt.Text) & "','" & Trim(exttxt.Text) & "','" & Trim(DropDownList1.SelectedValue) & "','" & Trim(itemtxt.Text) & "','" & Trim(Image1.ImageUrl) & "','" & Trim(desctxt.Text) & "','" & Trim(costtxt.Text) & "','" & Trim(Today.Date) & "')" updcmd = New SqlClient.SqlCommand(ssql, mySqlConn) updcmd.ExecuteNonQuery() lblmsg.Visible = True End SubAnyone can help me? Thanks.
I want to transfer some procedures using a generated script. However, the procedures that create pre-existing tables will not be created. Is there a way to shut off the validation so that I can create these procedures without getting errors?
Is there a way to write a dts package that will Generate SQL Scripts for a particular database? I am just learning dts and would like to automate this process that I run on weekly basis.
how to generate txt file from sql table. I want text file with respective columns without any seperator between columns. and if for an example a column of int having 5 digits but i want it in text file with 10 digits with remaining all as blanks. guide me how to do this. thnks in adv
This is my first time on sqlteam forum so a big hello to everyone!!
Firstly I am very noive user of sql to say the least, but i have be requested to create a .txt file
Its for a program that will read the txt file i create to produce a letter i.e I will be extracting, TITLE, FORENAME, SURNAME etc
MR JOE BLOGGS
Here is the my code so far, like i said i am a very novice user so try to help me and not condem me for my lack of knowledge!
SELECT LPA_INPUT.INPUT_TITLE, LPA_INPUT.INPUT_SURNAME, LPA_HISTORY.LPA_AMT, LPA_HISTORY.ELIG_RATE, LPA_HISTORY.RATE_REBATE, LPA_HISTORY.RR_AMT, LPA_HISTORY.LPA_APPLIC, LPA_HISTORY.LPA_AMT FROM LPA_HISTORY, LPA_INPUT WHERE LPA_HISTORY.CLAIM_NO = LPA_INPUT.CLAIM_NO ---------------------------------------------------- Iv been asked to have these eight fields looping over and over for all the records in the database, So im not to how to do that and how to generate it in a txt file?!
--This procedure will generate the Structure of a table
Create Procedure GenerateScript ( @tableName varchar(100)) as If exists (Select * from Information_Schema.COLUMNS where Table_Name=@tableName) Begin declare @sql varchar(8000) declare @table varchar(100) declare @cols table (datatype varchar(50)) insert into @cols values('bit') insert into @cols values('binary') insert into @cols values('bigint') insert into @cols values('int') insert into @cols values('float') insert into @cols values('datetime') insert into @cols values('text') insert into @cols values('image') insert into @cols values('uniqueidentifier') insert into @cols values('smalldatetime') insert into @cols values('tinyint') insert into @cols values('smallint') insert into @cols values('sql_variant')
set @sql='' Select @sql=@sql +case when charindex('(',@sql,1)<=0 then '(' else '' end +Column_Name + ' ' +Data_Type + case when Data_Type in (Select datatype from @cols) then '' else '(' end +case when data_type in ('real','money','decimal','numeric') then cast(isnull(numeric_precision,'') as varchar)+ ','+case when data_type in ('real','money','decimal','numeric') then cast(isnull(Numeric_Scale,'') as varchar) end when data_type in ('char','nvarchar','varchar','nchar') then cast(isnull(Character_Maximum_Length,'') as varchar) else '' end +case when Data_Type in (Select datatype from @cols)then '' else ')' end +case when Is_Nullable='No' then ' Null,' else ' Not null,' end from Information_Schema.COLUMNS where Table_Name=@tableName select @table= 'Create table ' + table_Name from Information_Schema.COLUMNS where table_Name=@tableName select @sql=@table + substring(@sql,1,len(@sql)-1) +' )' select @sql as DDL End Else Select 'The table '+@tableName + ' does not exist'
i recently moved from sql server 7 to sql 2005 -- in sql 7 if i wanted to generate an sql script then It would generate a whole script --- in sql 2005 - when i do generate it seems to attach a file -- I want to generate a script that I can then modify and use to create a new db -- is this possible?
I was thinking of creating a custom generated IDs for my table. I would like the ID to be something like "HR001" or "IT001", the two letter prefix would indicate the dept it belongs to. Initially I thought of having a table that will hold all the seed values for the IDs but I realize that this could have some concurrency problems if there will be a multiple number of users are creating a record at the same time. So now I have totally no idea on how to deal with the concurrency problem.
I will not be using this as a primary key because I already have the Identity field to be my primary key, though of course this field would definitely be unique. I will just be using this to display in the UI.
Hi, Do someone know if there is a SP_ or XP_ function for help me create a script of create table? I can do it "on-line" by right click a table in Enterprise-Manager (all properties;generate sql-script), but I want to "call a command" to do this. Very glad if someone know! //Lotta