Basic Trigger Syntax Below is the syntax for creating a trigger in Oracle (which differs slightly from standard SQL syntax): CREATE [OR REPLACE] TRIGGER <trigger_name> {BEFORE|AFTER} {INSERT|DELETE|UPDATE} ON [REFERENCING [NEW AS <new_row_name>] [OLD AS <old_row_name>]] [FOR EACH ...
PL/SQL TRIGGER Statement PL/SQL TRIGGER Statement The trigger statemet is a especially stored procedure.It define some event about database(such as,INSERT,UPDATE,CREATE and so on).When the special database event occur and execute the corresponse FUNCTION BLOCK. TRIGGER Syntax: create or replace...
Let’s examine the syntax of theCREATE TRIGGERstatement in more detail. A trigger has two main parts: header and body. The following illustrates the trigger header: CREATE[OR REPLACE]TRIGGERtrigger_name {BEFORE|AFTER} triggering_eventONtable_name[FOREACHROW] [FOLLOWS | PRECEDES another_trigger]...
Error Conditions and Exceptions in the Trigger Body See Also: Oracle Database SQL Reference for information about trigger creation syntax Types of Triggers A trigger can be a stored PL/SQL or C procedure associated with a table, view, schema, or the database itself. Oracle Database XE auto...
In this syntax, you put the name of the table in which you want to enable all triggers. For example, this statement enables all triggers of thecustomerstable: ALTERTABLEcustomersENABLEALLTRIGGERS;Code language:SQL (Structured Query Language)(sql) ...
> MySQL as in Oracle and illustrated in the code > below. Yes, though not same exact syntax. > I had a thought that maybe MySQL has > built-in optimization to include this feature, can > i be right or wrong here? Has nothing to do with "optimization", but rather a syntac...
Use the out_of_line_constraint syntax to define an integrity constraint as part of the table definition. Note: You must specify a PRIMARY KEY constraint for an index-organized table, and it cannot be DEFERRABLE. See Also: the syntax description of out_of_line_constraint in the constraints...
By using theBEGIN ... ENDconstruct, you can define a trigger that executes multiple statements. Within theBEGINblock, you also can use other syntax that is permitted within stored routines such as conditionals and loops. However, just as for stored routines, if you use themysqlprogram to defi...
Details of Syntax View Code Note the ‘COMPOUND TRIGGER’ keyword above. Some Restriction/Catches to note The body of a compound trigger must be a compound trigger block. A compound trigger must be a DML trigger. A compound trigger must be defined on either a table or a view. ...
Re: Trigger Syntax Error 1031 David Poole July 21, 2010 02:20AM Sorry, you can't reply to this topic. It has been closed. Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the ...