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renu anamalla 3renu anamalla 3 

what is the use of trigger?where can we used

what is the use of trigger?where can we used?
JeffreyStevensJeffreyStevens
Triggers are pieces of APEX code that can run automatically at times when an object record is created,updated,deleted, or undeleted.  They can at different points during the cycle.  Before Insert, After insert, Before Update and After Update.
Temoc MunozTemoc Munoz
Please refer to this URL:

https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_triggers.htm