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如何查一个表有多少字段

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Release： 2016-06-13 11:10:04
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怎么查一个表有多少字段
表的字段太多，怎么用sql看有多少字段呢，，字段太多会不会影响效率呢


------解决方案--------------------
引用:
desc tablebame


desc tablename
------解决方案--------------------
看下返回多少条记录也就能知道有多少个字段了
当然 也可以查询 information_schema 数据库
 SELECT count(*) FROM COLUMNS WHERE table_name='table_name' 

------解决方案--------------------
参考下帖
http://bbs.csdn.net/topics/320235486
Related labels：
name nbsp table
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