what is the difference between TRUNCATE and DELETE command
in SQL
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Answer Posted / padmapriya
1) Delete create log files when it is deleted and occupy
more space of memory
Whereas Truncate will not create any log files and hence
much faster than delete.
2) Delete can be roll back whereas Truncate is autocommit.
3) When there is foreign key constraint even though there
is no data in child table Truncate cannot be done. only
when the constraint is dropped truncate can be executed.
Whereas though we have foreign key constraints if the child
table is deleted, then parent table can be deleted.
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