A method and system for supporting an XQuery trigger in XML-DBMS based on relational DBMS is provided. In an Ubiquitous environment where XML data are incessantly generated by an enormous number of objects, so a
A method and system for supporting an XQuery trigger in XML-DBMS based on relational DBMS is provided. In an Ubiquitous environment where XML data are incessantly generated by an enormous number of ob
only the trigger name is readable. The rest of the statement is encoded in such a way that is not readable but can be decoded by the database server. Obfuscated statements can be produced by calling the DBMS_DDL.WRAP function.
UPDATEcustomersSETsalary=salary+500WHEREid=2; When a record is updated in the CUSTOMERS table, the above create trigger,display_salary_changeswill be fired and it will display the following result − Old salary: 1500 New salary: 2000 Salary difference: 500 ...
Utilizați aceste opțiuni pentru adăugarea, editarea, elimina, sau examinarea codul pentru triggere și verificați clauze. Opțiunile din această categorie pot varia în funcție de sistemul de gestionare bază de date specifice ...
The trigger action is not executed if the trigger restriction evaluates to FALSE or UNKNOWN. In the example, the trigger restriction is new.parts_on_hand < new.reorder_point Trigger Action A trigger action is the procedure (PL/SQL block, Java program, or C callout) that contains the SQL ...
trig AFTER INSERT OR UPDATE OR DELETE ON emp DECLARE v_action VARCHAR2(24); BEGIN IF INSERTING THEN v_action := ' added employee(s) on '; ELSIF UPDATING THEN v_action := ' updated employee(s) on '; ELSIF DELETING THEN v_action := ' deleted employee(s) on '; E...
dbms_application_info.set_client_info(sys_context( 'userenv', 'ip_address' ) ); end; BEGIN INSERT into LOGINFO_LOG(session_id,login_on_time,login_off_time,user_in_db,machine,ip_address,run_program) SELECT AUDSID,sysdate,null,sys.login_user,machine,SYS_CONTEXT('USERENV','IP_ADDRESS'),...
dbms_lob conversion dbo and [] for table name sources ? Correct me Deadlock in tempdb Deadlock on insert and select on same table Deadlock while inserting into sql server table from multiple machines DeadLocks on e_waitPipeNewRow Wait type Decimal (18,5) to NUMERIC (15,6) Conversion Deci...
(1)A mechanism that initiates an action when an event occurs such as reaching a certain time or date or upon receiving some type of input. A trigger generally causes a program routine to be executed. (2)In a database management system (DBMS), a trigger is an SQL procedure that is exec...