Thanks again. On Wednesday, February 20, 2013 12:56:45 AM UTC-5, Ninja Li wrote:
> Hi, > > I would like to ask for some advice on the design of PL/SQL procedure. I > am trying to improve the performance of a PL/SQL procedure which allows a > user to do search by their last name and returns their account > information. I will be joining two tables, customer_info (with last name as > a column ) and account_details, with 8 million and 50 million rows > respectively by user ID on each table. The procedure is already in place > and very straight forward, which goes something like the following: > > procedure name_search ( p_in_user_id number, p_in_lastname varchar2 ,,,) > { > ....... > open cursor for > select a.column1, a.column2, b.column1, b.column2, ..... > from customer_info a, account_details b > where a.user_id = b.user_id > and a.last_name like p_in_lastname || '%'; > } > > The execution time varies from 3 to 15 seconds. > > I would like to ask if there are other ways to write the procedure, such > as using with clause or global temporary tables which can significantly > improve performance in your experience. > > The tables already have partition and indexes on last_names, user_id in > place. > > Thanks in advance. > > Nick > > > > > > > > > > > -- -- You received this message because you are subscribed to the Google Groups "Oracle PL/SQL" group. To post to this group, send email to Oracle-PLSQL@googlegroups.com To unsubscribe from this group, send email to oracle-plsql-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Oracle-PLSQL?hl=en --- You received this message because you are subscribed to the Google Groups "Oracle PL/SQL" group. To unsubscribe from this group and stop receiving emails from it, send an email to oracle-plsql+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.