Context Variables 上下文变量 Trigger.New 用来获取新插入或者新更新的记录 Trigger.Old 用来获取被更新或被删除签的记录。 这些记录有可能是批量操作的,可以对他们进行枚举来获得里面的每一条记录。 trigger HelloWorldTrigger on Account (before insert) {for(Account a : Trigger.New) { a.Description='New descr...
trigger runs with a set of context variables that provide access to the records that caused the trigger to fire. all triggers run in bulk; that is, they process several records at once. from the object management settings for books, go to triggers, and then click new . in the trigger ...
please consider misspellings try different search keywords apex developer guide release notes getting started with apex writing apex running apex invoking apex anonymous blocks triggers bulk triggers trigger syntax trigger context variables context variable considerations common bulk trigger idioms defining ...
Notice two important details. First, thePage Items to SubmitandPage Items to Returnare configured to mention the names of the page items referenced as bind variables in the PL/SQL block. Second, since theP12_SHOW_INSURANCE_AMOUNTis ahiddenfield being changed dynamically in the browser, we need...
Trigger context variables such as Trigger.new are implicitly defined in all triggers and provide access to the records that caused the trigger to fire. In this case, Trigger.new contains all the new books that are about to be inserted. Book__c[] books = Trigger.new; The next line in ...
Triggers are often used to enforce business rules and automate processes. 8. Governor Limits: Apex has specific limits imposed by Salesforce to ensure efficient use of resources. These limits restrict the amount of resources (such as CPU time, heap size, and database queries) that a single ...
switchon Context { when SYNCHRONOUS { RequestOrderProcessor =newTriggerOrderProcessing(); } when BULK_API { RequestOrderProcessor =newBulkAPIOrderProcessing(); } whenelse{ RequestOrderProcessor =newBaseOrderProcessing(); } } .---. | .---. | | |...
-- define sql*plus substitution variables SCRIPTNAME and LOGFILENAME column script_name new_value scriptname column logfile_name new_value logfilename -- fetch name of the currently running SQL*plus script select regexp_replace(sys_context('userenv','module'),'^\d*@ *') as script_name fr...
You can also take advantage of INSTEAD OF trigger on APEX_APPL_ACL_USERS view to edit user roles with DML statements (INSERT, UPDATE, and DELETE). If the package is used outside of an Oracle APEX environment, the security_group_id must be set using either APEX_UTIL.SET_WORKSPACE or ...
Making callouts to external web services. Callouts can take a long time to process, but in the Lightning Platform, triggers can’t make callouts directly. Creating a better and faster user experienceby offloading some processing to asynchronous calls. Why do everything at once? If it can wa...