create trigger for insert update delete sql server

--Create a databaseCreate DATABASE hq20161114Go--Using the databaseUse hq20161114Go--Create student tablesCREATE TABLE Xuesheng(code int,Name varchar (10),Sex char (10),Chengji Decimal (18,2))--Add student informationINSERT into Xuesheng values (1001, ' One ', ' male ', 11)INSERT into Xuesheng values (1002, ' two ', ' Male ', 22)

MySQL trigger Update triggers Insert failure To display the historical records of tables with status updates only, you need to create a trigger in the original table to write the updated content to another table at the same time. So the test --

In the past, SQL Server only performed operations on the graphic interface. Now I find that my SQL language skills are getting worse and worse. For example, how to add associations for two tables, cascade update and delete. I checked it at night and found that two methods ca

TABLEdbo. Orders; CREATE TABLEdbo. Orders (OrderIDINT not NULL, EmpidINT not NULL, CustIDVARCHAR(Ten) not NULL, Orderts DATETIME2 not NULL, QtyINT not NULL, CONSTRAINTPk_ordersPRIMARY KEY(OrderID)); /** Add PRIMARY KEY constraint **/ ALTER TABLEDbo. OrdersADD CONSTRAINTFk_orders_employeesFOREIGN KEY(Empid)REFERENCESdbo. Employees (Empid); /** Add default constraint **/ ALTER TABLEDbo. OrdersADD CONSTRAINTDft_orders_ordertsDEFAULT(Sysdat

is used in SQL Server, and is the identifier of the database in SQL Server.6.filename Specifies the operating system folder name and path for the file where the database resides, and the operating system file name corresponds to the logical name one by one of name.7. size Specifies the initial capacity of the database

://www.developersdex.com * * *Don ' t just participate in Usenet...get rewarded for it!June 20 ' 05 # 2 p:n/a Erland Sommarskog [posted and mailed, Vänligen Svara I NYS] Jenny (jenny.karlsson@spray.se) Writes:[color=blue]> I wonder how to use conditions in the inserted table (in a> Insert/update)

1. Create the statement for the trigger: CREATE TRIGGER {before | After} {INSERT | UPDATE | DELETE} On For each ROW -Triggers The code is as follows Copy Code

Suppose there is a table A, CREATE TABLE A ( ID INT not NULL IDENTITY (1,1), ProductID INT not NULL, Retailerid INT not NULL, Date DATETIME not NULL CONSTRAINT a_pk PRIMARY KEY (ProductID, Retailerid, Date) ); I mean to make ProductID, Retailerid and Date (excluding hours, minutes, etc.) as primary keys. That is: one day, Retailerid and ProductID are the only ones. In SQL

Tags: div LSE blog Information upd ROM targe com serveTransferred from: http://www.maomao365.com/?p=6973 Summary:In SQL scripting, if you need to use the method of table aliases in update Delete, you must write according to certain rules, otherwise the corresponding exception information will appear as follows:Lab environment:

1. INSERT statement Format (1) INSERT into table name (column 1, column 2 ...) Column n) value (value 1, value 2,.... Value n); the type and order of the columns and values must be one by one corresponding, the ignored columns must allow null values to be inserted, and the columns can be in any order when inserted, but the values must correspond to the (2) Other: Execute system stored procedure, query the

You can use the "generate SQL script" tool that comes with SQL Server 2000 to generate SQL scripts for creating tables, views, and stored procedures. So can we generate SQL scripts for the data in the table and automatically import the data to

Today's work requires that you want to implement a history of the tables that will only update the status, so consider setting up triggers in the original table and writing the updated content to another table So I tested it. --Establish a test table create table ' Triggletest_triggle ' ( ' id ' INT () not NULL, ' name ' VARCHAR (5) null DEFAULT NULL, PRIMARY KEY (' id ') ) collate= ' latin1_swedis

The new Xml.modify () method is added to SQL Server, xml.modify (insert), xml.modify (delete), xml.modify (replace) to insert, delete, and modify the XML. This article takes the following XML as an example to illustrate three type

static void Update (String connstring, DataTable table){SqlConnection conn = new SqlConnection (connstring);SqlCommand COMM = conn. CreateCommand ();Comm.commandtimeout = _commandtimeout;Comm.commandtype = CommandType.Text;SqlDataAdapter adapter = new SqlDataAdapter (comm);SqlCommandBuilder Commandbulider = new SqlCommandBuilder (adapter);Commandbulider.conflictoption = conflictoption.overwritechanges;Try{Conn. Open ();Set the number of processing ba

A trigger is a special type of stored procedure that differs from the stored procedure we described earlier. Triggers are triggered primarily by an event that is automatically invoked to execute. The stored procedure can be called by the name of the stored procedure.Ø what is a triggerA special stored procedure that is automatically executed when a trigger inserts, updates, or deletes a table. Triggers are

be modified. ', 10, 1)ROLLBACK TRANSACTIONEND Working process of the instead trigger You can specify the instead of trigger on a table or view. Executing this trigger can replace the original trigger action. The instead of trigger extends the type OF view

Unlike some other databases, MySQL can throw an exception in the trigger to interrupt the execution of the trigger to prevent the execution of the corresponding SQL statement. The MySQL directory version cannot directly throw an exception. How can we achieve this? The following is an implementation method. The idea is to try to use an incorrect statement in the

error|server| Error | server | resolution A 14274 error occurs when you attempt to update or delete a job created before SQL Server2000 after a change to the Windows host name. This error does not occur in SQL 7.0, but in a cluste

SQL trigger instance 1Definition: What is a trigger? In SQL Server, certain operations on a table trigger certain conditions to execute a program. A trigger is a special stored procedur

SQL server trigger, stored procedure operation remote database insertion data, solve the existing problems on the server, server trigger I recently created a small project, which is not very complicated. I need to back up some dat