Meaning of "Grant Alter to <User>" ? Merge error handling MERGE for Remote Table Merge for soft delete - Datawarehouse MERGE ON 1=0 Merge overlapping date ranges, keep adjacent in tact Merge statement conflict with FK Merge Statement Taking Long Time MERGE statement throws Violation of PRIMARY...
then concurrently another transaction callsjustDeleteSthand deletes the row withid = someId, so when the transaction continues it won't delete anything here:DELETE FROM ... WHERE id = some_id;meaning it messes things up.
The Do records are not strictly required if the DBMS makes database file updates when the application requests it to, instead of waiting. However, waiting to write the data can have advantages for performance and concurrency. In addition, the Do records may be used for audit or other advanced...