Oracle中查看建立索引和使用索引的注意点
一、查看和建立索引select * from user_indexes where table_name = 一、查看和建立索引select * from user_indexes where table_name = 'studen...
一、查看和建立索引select * from user_indexes where table_name = 一、查看和建立索引select * from user_indexes where table_name = 'studen...