----------------------------------------------------------- New Message on MumbaiUserGroup
----------------------------------------------------------- From: Pankil Message 8 in Discussion Hi Raj, I have tried this too ... issue here is how to store column name? Because the audit table here has same table structure ... where as in my case its common for all the tables which needs one insert per field. Regards, Pankil From: "Rajashekar M" <[EMAIL PROTECTED]> To: [email protected] CC: [EMAIL PROTECTED] Subject: Re: SQL Audit Trigger Date: Fri, 24 Feb 2006 07:41:06 +0000 Hi, Try using COLUMNS_UPDATED() , this is bitwise operations. You need to derive at which column it got updated depending on the formula. If you have an access to SQL Server books you will be able to solve it properly. I have copied the code or example provided in SQL Books Online: E. Use COLUMNS_UPDATED This example creates two tables: an employeeData table and an auditEmployeeData table. The employeeData table, which holds sensitive employee payroll information, can be modified by members of the human resources department. If the employee's social security number (SSN), yearly salary, or bank account number is changed, an audit record is generated and inserted into the auditEmployeeData audit table. By using the COLUMNS_UPDATED() function, it is possible to test quickly for any changes to these columns that contain sensitive employee information. This use of COLUMNS_UPDATED() only works if you are trying to detect changes to the first 8 columns in the table.USE pubs IF EXISTS(SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'employeeData') DROP TABLE employeeData IF EXISTS(SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'auditEmployeeData') DROP TABLE auditEmployeeData GO CREATE TABLE employeeData ( emp_id int NOT NULL, emp_bankAccountNumber char (10) NOT NULL, emp_salary int NOT NULL, emp_SSN char (11) NOT NULL, emp_lname nchar (32) NOT NULL, emp_fname nchar (32) NOT NULL, emp_manager int NOT NULL ) GO CREATE TABLE auditEmployeeData ( audit_log_id uniqueidentifier DEFAULT NEWID(), audit_log_type char (3) NOT NULL, audit_emp_id int NOT NULL, audit_emp_bankAccountNumber char (10) NULL, audit_emp_salary int NULL, audit_emp_SSN char (11) NULL, audit_user sysname DEFAULT SUSER_SNAME(), audit_changed datetime DEFAULT GETDATE() ) GO CREATE TRIGGER updEmployeeData ON employeeData FOR update AS /*Check whether columns 2, 3 or 4 has been updated. If any or all of columns 2, 3 or 4 have been changed, create an audit record. The bitmask is: power(2,(2-1))+power(2,(3-1))+power(2,(4-1)) = 14. To check if all columns 2, 3, and 4 are updated, use = 14 in place of >0 (below).*/ IF (COLUMNS_UPDATED() & 14) > 0 /*Use IF (COLUMNS_UPDATED() & 14) = 14 to see if all of columns 2, 3, and 4 are updated.*/ BEGIN -- Audit OLD record. INSERT INTO auditEmployeeData (audit_log_type, audit_emp_id, audit_emp_bankAccountNumber, audit_emp_salary, audit_emp_SSN) SELECT 'OLD', del.emp_id, del.emp_bankAccountNumber, del.emp_salary, del.emp_SSN FROM deleted del -- Audit NEW record. INSERT INTO auditEmployeeData (audit_log_type, audit_emp_id, audit_emp_bankAccountNumber, audit_emp_salary, audit_emp_SSN) SELECT 'NEW', ins.emp_id, ins.emp_bankAccountNumber, ins.emp_salary, ins.emp_SSN FROM inserted ins END GO /*Inserting a new employee does not cause the UPDATE trigger to fire.*/ INSERT INTO employeeData VALUES ( 101, 'USA-987-01', 23000, 'R-M53550M', N'Mendel', N'Roland', 32) GO /*Updating the employee record for employee number 101 to change the salary to 51000 causes the UPDATE trigger to fire and an audit trail to be produced.*/ UPDATE employeeData SET emp_salary = 51000 WHERE emp_id = 101 GO SELECT * FROM auditEmployeeData GO /*Updating the employee record for employee number 101 to change both the bank account number and social security number (SSN) causes the UPDATE trigger to fire and an audit trail to be produced.*/ UPDATE employeeData SET emp_bankAccountNumber = '133146A0', emp_SSN = 'R-M53550M' WHERE emp_id = 101 GO SELECT * FROM auditEmployeeData GO F. Use COLUMNS_UPDATED to test more than 8 columns If you must test for updates that affect columns other than the first 8 columns in a table, you must use the SUBSTRING function to test the proper bit returned by COLUMNS_UPDATED. This example tests for updates that affect columns 3, 5, or 9 in the Northwind.dbo.Customers table.USE Northwind DROP TRIGGER tr1 GO CREATE TRIGGER tr1 ON Customers FOR UPDATE AS IF ( (SUBSTRING(COLUMNS_UPDATED(),1,1)=power(2,(3-1)) + power(2,(5-1))) AND (SUBSTRING(COLUMNS_UPDATED(),2,1)=power(2,(1-1))) ) PRINT 'Columns 3, 5 and 9 updated' GO UPDATE Customers SET ContactName=ContactName, Address=Address, Country=Country GO regards, Raj From: "Pankil" <[EMAIL PROTECTED]> Reply-To: "MumbaiUserGroup" <[email protected]> To: [EMAIL PROTECTED], [email protected] Subject: Re: SQL Audit Trigger Date: Thu, 23 Feb 2006 23:17:30 -0800 <STYLE> ThmFgColumnHeader, A.FrameLink, A.HeaderLink, A.FooterLink, A.LgtCmd, A.MSNLink {color:#FFFFFF;} ThmFgTitleLightBk {color:#FF6600;} ThmFgSmallLight {color:#ff0000;} ThmFgNavLink, A.NavLink, A.ChildLink:hover {color:#666699;} ThmFgInactiveText, A.SystemLink {color:#666666;} ThmFgFrameTitle {color:#FFFFCC;} ThmFgMiscText, A.Cat, A.SubCat {color:#336699;} ThmFgCommand, A.Command, A.LargeCommand, A.MsgLink {color:#003366;} ThmFgHeader {color:#333333;} ThmFgDivider {color:#CCCCCC;} ThmBgStandard {background-color:#FFFFFF;} ThmBgUnknown1 {background-color:#FF6600;} ThmBgFraming {background-color:#666699;} ThmBgUnknown2 {background-color:#666666;} ThmBgHighlightDark {background-color:#FFFFCC;} ThmBgHighlightLight, #idToolbar, #tbContents {background-color:#FFFFE8;} ThmBgTitleDarkBk {background-color:#F1F1F1;} ThmBgAlternate {background-color:#ECF1F6;} ThmBgUnknown3 {background-color:#CCCCFF;} ThmBgDivider {background-color:#CCCCCC;} ThmBgHeader {background-color:#9999CC;} ThmBgLinks {background-color:#8696C9;} ThmBgSharkBar {background-color:#8696C9;} ThmBgGlobalNick {background-color:#9394A9;} calfgndcolor {color:#E00505;} calbgndcolor {color:#E00505;} </STYLE> New Message on MumbaiUserGroup SQL Audit Trigger Reply Reply to Sender Recommend Message 4 in Discussion From: Pankil Hi Raj, Thanks for quick response. I have also tried with the IF UPDATE but here also I have to pass column name that means I have to loop through all the columns and check for individual column updated or not. Is there a way where I can find list of all columns being updated? Regards, Pankil From: "Rajashekar M" <[EMAIL PROTECTED]> To: [email protected] CC: [EMAIL PROTECTED] Subject: RE: SQL Audit Trigger Date: Fri, 24 Feb 2006 06:31:56 +0000 Hi Pankil, You can use the following keyword of SQL Server "IF UPDATE clause" to know which column got updated. It returns you true then it means the column got changed. For detail example pls look into SQL Server Online books, you will find the exact sysntaxt to use. If you feel still required help, let me know Ex: CREATE TABLE my_table* (a int NULL, b int NULL) GO CREATE TRIGGER my_trig ON my_table FOR INSERT AS IF UPDATE(b) PRINT 'Column b Modified' GO Regards, Raj From: "Pankil" <[EMAIL PROTECTED]> Reply-To: "MumbaiUserGroup" <[email protected]> To: "MumbaiUserGroup" <[email protected]> Subject: SQL Audit Trigger Date: Thu, 23 Feb 2006 21:25:49 -0800 <STYLE> ThmFgColumnHeader, A.FrameLink, A.HeaderLink, A.FooterLink, A.LgtCmd, A.MSNLink {color:#FFFFFF;} ThmFgTitleLightBk {color:#FF6600;} ThmFgSmallLight {color:#ff0000;} ThmFgNavLink, A.NavLink, A.ChildLink:hover {color:#666699;} ThmFgInactiveText, A.SystemLink {color:#666666;} ThmFgFrameTitle {color:#FFFFCC;} ThmFgMiscText, A.Cat, A.SubCat {color:#336699;} ThmFgCommand, A.Command, A.LargeCommand, A.MsgLink {color:#003366;} ThmFgHeader {color:#333333;} ThmFgDivider {color:#CCCCCC;} ThmBgStandard {background-color:#FFFFFF;} ThmBgUnknown1 {background-color:#FF6600;} ThmBgFraming {background-color:#666699;} ThmBgUnknown2 {background-color:#666666;} ThmBgHighlightDark {background-color:#FFFFCC;} ThmBgHighlightLight, #idToolbar, #tbContents {background-color:#FFFFE8;} ThmBgTitleDarkBk {background-color:#F1F1F1;} ThmBgAlternate {background-color:#ECF1F6;} ThmBgUnknown3 {background-color:#CCCCFF;} ThmBgDivider {background-color:#CCCCCC;} ThmBgHeader {background-color:#9999CC;} ThmBgLinks {background-color:#8696C9;} ThmBgSharkBar {background-color:#8696C9;} ThmBgGlobalNick {background-color:#9394A9;} calfgndcolor {color:#E00505;} calbgndcolor {color:#E00505;} </STYLE> New Message on MumbaiUserGroup SQL Audit Trigger Reply Reply to Sender Recommend Message 1 in Discussion From: Pankil Hi, I want to log an Audit for all records being inserted, update & deleted in another table of following format .. Audit Table ----------- Type Varchar(1) --- This will store 'I', 'U' or 'D' TableName Varchar(100) --Tablename PK Varchar(400) --Stores primarykey name & value of that table ColumnName Varchar(100) --Field NewValue Varchar(200) --Value being inserted OldValue Varchar(200) --Old value in case of Update/Delete Say for example I am creating a trigger on Table Test having follwing structure Test ---- PKTest int -- PKTest1 int -- PKTest & PKTest1 being composite primary key F1 Varchar(5) F2 Varchar(10) firing following queries in Test Table 1. insert into Test Values (1, 1, 'A', 'B') 2. insert into Test Values (1, 2, 'A1', 'B1') 3. Update Test Set F1 = 'C' Where PKTest = 1 and PKTest1 = 1 Now Requirement is following data needs to be logged in to Audit Table Case 1. Type = 'I' TableName = 'Test' PK = 'PKTest=1|PKTest1=1' ColumnName = F1 NewValue = 'A' OldValue = Null Case 2. Type = 'I' TableName = 'Test' PK = 'PKTest=1|PKTest1=2' ColumnName = F1 NewValue = 'A1' OldValue = Null Case 3. Type = 'I' TableName = 'Test' PK = 'PKTest=1|PKTest1=1' ColumnName = F1 NewValue = 'C' OldValue = 'A' I am able to achive this output but the trigger I used is using a loop through All columns and check if column is updated or not .. if yes then insert into audit log .. For current scenario there is no issues and works fine ... but issue arises when I want to write the trigger on a table having more than 60 columns this slow down the inserts and update. Is there any better way to write this trigger instead of looping through the column list and check for each column? View other groups in this category. <STYLE> ADMSmLnk {font-family:verdana,system;color:#336699;text-decoration:none;} ADMSmLnk:hover {color:#ff6600;text-decoration:underline;} </STYLE> Also on MSN: Start Chatting | Listen to Music | House & Home | Try Online Dating | Daily Horoscopes To stop getting this e-mail, or change how often it arrives, go to your E-mail Settings. Need help? If you've forgotten your password, please go to Passport Member Services. For other questions or feedback, go to our Contact Us page. If you do not want to receive future e-mail from this MSN group, or if you received this message by mistake, please click the "Remove" link below. On the pre-addressed e-mail message that opens, simply click "Send". Your e-mail address will be deleted from this group's mailing list. Remove my e-mail address from MumbaiUserGroup. STILL SINGLE? Get married through MSN Matrimony. Join now for FREE! View other groups in this category. To stop getting this e-mail, or change how often it arrives, go to your E-mail Settings. Need help? If you've forgotten your password, please go to Passport Member Services. For other questions or feedback, go to our Contact Us page. If you do not want to receive future e-mail from this MSN group, or if you received this message by mistake, please click the "Remove" link below. On the pre-addressed e-mail message that opens, simply click "Send". Your e-mail address will be deleted from this group's mailing list. Remove my e-mail address from MumbaiUserGroup. STILL SINGLE? Get married through MSN Matrimony. Join now for FREE! ----------------------------------------------------------- To stop getting this e-mail, or change how often it arrives, go to your E-mail Settings. http://groups.msn.com/mumbaiusergroup/_emailsettings.msnw Need help? If you've forgotten your password, please go to Passport Member Services. http://groups.msn.com/_passportredir.msnw?ppmprop=help For other questions or feedback, go to our Contact Us page. http://groups.msn.com/contact If you do not want to receive future e-mail from this MSN group, or if you received this message by mistake, please click the "Remove" link below. On the pre-addressed e-mail message that opens, simply click "Send". Your e-mail address will be deleted from this group's mailing list. mailto:[EMAIL PROTECTED]
