Upsert from a trigger?
136800
DML statement cannot operate on Trigger.new or Trigger.old
125805
Not able to catch an exception (Custom + Standard) from trigger
133977
Alter CONSTRAINT or stored procedure only to check when insert not on update
135326
Roll-up Summary FIeld is not calculated on after insert trigger
59044
Deleting Triggers/Classes from Production
128594
Database.upsert - how to find which records have inserted/updated based on ExternalId
66132
Make Validation Rule bypass if TRIGGER is run?
140328
Rollup Summary Trigger Help
34957
Idiomatic way to implement UPSERT in PostgreSQL
34449
Trigger for avoid insertion from data loader?
30052
Before Insert: Using __r to pull related data in a Trigger.New for loop results in nulls even though lookup relationship has Id
105329
Trigger to check for duplicate contacts on lead conversion
78838
Why LastModifiedbyid in Trigger.new gives old value
151899
SQL Server triggers - order of execution
20730
Check if MongoDB upsert did an insert or an update
64926
In what order do multiple readied actions with the same trigger resolve?
141047
Change Data Capture and Async Triggers