"SQL trigger" Code Answer's

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how use trigger in sql

By Condemned CowfishCondemned Cowfish on Mar 11, 2021
CREATE TRIGGER Product_Details_tr 
BEFORE INSERT ON Product_Details 
FOR EACH ROW 
SET NEW.User_ID = CURRENT_USER();

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CREATE trigger SQL

By Homeless HawkHomeless Hawk on Feb 04, 2021
-- Oracle DB Syntax
CREATE OR REPLACE TRIGGER {trigger_name} 
BEFORE | AFTER 
INSERT | UPDATE | DELETE 
ON {table_name}
(FOR EACH ROW) 
{operation to be executed}

-- for example
CREATE TRIGGER log_updates 
AFTER INSERT OR UPDATE ON Person
FOR EACH ROW 
INSERT INTO LogPerson(ts, IdPerson, surname)
VALUES(CURRENT_TIMESTAMP, NEW.id, NEW.surname);

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creation d'un trigger sql

By Breakable BarracudaBreakable Barracuda on May 25, 2020
 CREATE OR REPLACE TRIGGER trigg_example
 BEFORE INSERT OR UPDATE ON table_example
 FOR EACH ROW
 WHEN (new.no_line > 0)
 DECLARE
     evol_exemple number;
 BEGIN
     evol_exemple := :new.exemple  - :old.exemple;
     DBMS_OUTPUT.PUT_LINE('  evolution : ' || evol_exemple);
 END;

Source: sql.sh

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what is a trigger in sql

By mandonmandon on Dec 13, 2020
-- SQL Server Syntax  
-- Trigger on an INSERT, UPDATE, or DELETE statement to a table or view (DML Trigger)  
  
CREATE [ OR ALTER ] TRIGGER [ schema_name . ]trigger_name   
ON { table | view }   
[ WITH <dml_trigger_option> [ ,...n ] ]  
{ FOR | AFTER | INSTEAD OF }   
{ [ INSERT ] [ , ] [ UPDATE ] [ , ] [ DELETE ] }   
[ WITH APPEND ]  
[ NOT FOR REPLICATION ]   
AS { sql_statement  [ ; ] [ ,...n ] | EXTERNAL NAME <method specifier [ ; ] > }  
  
<dml_trigger_option> ::=  
    [ ENCRYPTION ]  
    [ EXECUTE AS Clause ]  
  
<method_specifier> ::=  
    assembly_name.class_name.method_name  
  

Source: docs.microsoft.com

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1

mssql trigger examples

By Average AlbatrossAverage Albatross on Jul 16, 2020
CREATE TRIGGER trigger_name   
ON { Table name or view name }   
[ WITH <Options> ]  
{ FOR | AFTER | INSTEAD OF }   
{ [INSERT], [UPDATE] , [DELETE] }			

Source: www.mssqltips.com

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SQL trigger

By Determined DoveDetermined Dove on Apr 22, 2021
CREATE TRIGGER [schema_name.]trigger_name
ON table_name
{FOR | AFTER | INSTEAD OF} {[INSERT] [,] [UPDATE] [,] [DELETE]}
AS
{sql_statements}

Source: www.sqlshack.com

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0

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