Why doesn't the Oracle optimizer use my index?
Querying too much data
Most Oracle developers know that an index is useful when you can use it to restrict your result set to a small number of the total rows in a table.
So, the obvious side…
Truncate is a DDL Command where as Delete is a DML Command.
Both will delete data from table, but what is the difference between these below statements
truncate table <table_name> ??
delete from <table_name> ??
The first command cannot be …