摘要:
--by zhuyj 显示&select ‘\&s’ from dual; --注意必须要加引号 --by zhuyjcreate or replace function fun_export_data( v_tablename in varchar2, v_condition in varchar 阅读全文
摘要:
conn sh/sh--执行想要创建基线的语句,语句的执行计划将会被缓存set autotrace on select /*ghbaselines1*/ count(*) from customers join countries using ( country_id ) where country 阅读全文
摘要:
--0.CREATE TABLEdrop user zyj cascase;CREATE USER ZYJ IDENTIFIED BY zyj;GRANT DBA TO ZYJ; --索引创建后搜集统计信息begin dbms_stats.gather_table_stats('zyj','obje 阅读全文