create trigger for insert update delete sql server

Label:First, create, delete database Oracle oradb11g_home-> Configuration and porting tools->database configration Assistant-> You can then create or delete the database Ii. establishing a table space Create Tablespace inspur_tablespace Logging DataFile ' D:\MyOracleBACK

Please see the following interface definition: The code is as follows Copy Code Database Operation interfacepublic interface Hidatabase{Find dataSystem.Data.DataSet find (String sql);Update dataint update (String sql);Add dataint add (String sql

SQL Server Temp Table create query Delete CREATE TABLE Temptablename ( ID int identity (1,1) not NULL, A1 varchar (50), A2 varchar (50), A3 varchar (50), Primary key (ID)--defines a primary key with an ID of temporary table #tmp ) Select [Field 1, Fi

Misunderstanding #4: DDL triggers (introduced after SQL Server 2005) are INSTEAD triggers This is wrong The implementation principle of DDL triggers is actually an AFTER trigger. This means that a DDL operation is performed first, and then the trigger captures the operation (of course, if you write Rollback in the

Example: Existing tables tab1 and tab2 The trigger must have the following functions When you insert a record to tab1, tab2 also inserts the same record. Mysql> delimiter // mysql> Create trigger t_afterinsert_on_tab1-> after insert on tab1-> for each row-> begin->

MySQL database insert and UPDATE statementsIntroduction: The SQL used to manipulate the database is generally divided into two kinds, one is the query statement, that is, we call the SELECT statement, the other is to update the statement, also known as data manipulation statements. The implication is that the data is m

, and alter. B. dll (Dynamic Link Library) triggers are caused by data definition events, including: Create , Alter and drop statements. 2. Implement the trigger: 1. Create a and MDL triggers. T-SQL syntax: Create trigger [Sche

useful for insert and update) uniquely marks an attribute, MyBatis either through Getgeneratedkeys return value or by using the Insert language The Selectkey child element of a sentence sets its key value, by default: unset. If you want to get more than one generated column, you can also be a comma-delimited list of property names. -keyproperty= ""6. KeyColumn

=stopiccount+1 where @bkID =sid endExecute INSERT statement: INSERT INTOBbsreply (rid,rtid,rsid,ruid,rtopic,rcontents) VALUES (' 6 ', ' 2 ', ' 1 ', ' 2 ', ' employment difficult ', ' unequal opportunity ')In the Bbsuser table, the number of users in the Upoint will be added 1, in the Bbstopic table 2nd main posts of the reply volume (Treplycount) will be 7, the Bbssession table in the volume of posts (Stopi

About 0x00 Using SQL injection to obtain database data, the method can be broadly divided into joint query, error, Boolean blind and delay injection, which are usually based on the SQL injection point in SELECT query statement. Well, when we find an injection point based on INSERT, UPDATE,

[dbo]. [usp_ B _Update](@ Id INT,@ ItemCode NVARCHAR (50)'+ @ VariableList +')ASUPDATE [dbo]. [B] SET [ItemCode] = @ ItemCode '+ @ FieldValueList + 'where [Id] = @ Id'EXECUTE sp_EXECUTESQL @ SQL _U; Insert trigger for table [:Copy codeThe Code is as follows: create trigger

is no need to specify the SET identity_insert table name on option Difference Three Null value repeat problem for unique index Mysql The unique index in MySQL will invalidate the null field INSERT into Test (a) VALUES (NULL) inserts into Test (a) values (NULL) The above INSERT statement can be inserted repeatedly (same as Union unique index) Sql