Oracle中的函数——Trunc()
trunc(exp1)trunc(exp1)和Round(exp1,exp2)类似，只不过trunc()不指定截取的小数位数进行处理，只取到整数位,不做舍去处理select trunc(123.1234) from dual ---123select trunc(123.9234) from dual ---123-----
--Oracletrunc()函数的用法/**************日期********************/1.select trunc(sysdate) from dual --2011-3-18 今天的日期为2011-3-182.select trunc(sysdate, 'mm') from dual --2011-3-1 返回当月第一天.3.select t
In Oracle/PLSQL, the trunc function returns a date truncated to a specific unit of measure.
The syntax for the trunc function is:
trunc ( date, [ format ] )
date is the date to truncate.
forma
