Home > Database > Mysql Tutorial > body text

oracle 常用的几个SQL

WBOY
Release: 2016-06-07 18:07:23
Original
941 people have browsed it

oracle几个常用的SQL

1 查找记录条数 select count(*) from table_name(换成表名)

2 查找表数据大小

select num_rows * avg_row_len
from user_tables
where table_name = 'table_name(换成表名)';

更多可以参考下
Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template