Function Based Index Step by Step
alter session set query_rewrite_enabled=true;
alter session set query_integrity=trusted;
create index on orders(trunc(time));
analyze table orders compute statistics;
select /* +index(orders) */ * from orders where trunc(time)=trunc(sysdate);[@more@] need to research more ...
alter session set query_rewrite_enabled=true;
alter session set query_integrity=trusted;
create index on orders(trunc(time));
analyze table orders compute statistics;
select /* +index(orders) */ * from orders where trunc(time)=trunc(sysdate);[@more@] need to research more ...
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/205087/viewspace-786673/ ，如需转载，请注明出处，否则将追究法律责任。
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