日報(bào)數(shù)據(jù)統(tǒng)計(jì)中會(huì)用到當(dāng)天數(shù)據(jù)的查詢，下列就是日期要對(duì)應(yīng)的條件：
between
to_date(to_char(sysdate,'yyyy-mm-dd') || ' 00:00:01','yyyy-mm-dd hh24:mi:ss') and
to_date(to_char(sysdate,'yyyy-mm-dd') || ' 23:59:59','yyyy-mm-dd hh24:mi:ss');
Oracle
字段類型為varchar2，格式要與格式化的樣式匹配
當(dāng)天select * from 表名 where to_char(to_date(字段名,'yyyy-mm-dd hh24:mi:ss'),'dd')=to_char(sysdate,'dd')當(dāng)周select * from 表名 where to_char(to_date(字段名,'yyyy-mm-dd hh24:mi:ss'),'iw')=to_char(sysdate,'iw')當(dāng)月select * from 表名 where to_char(to_date(字段名,'yyyy-mm-dd hh24:mi:ss'),'mm')=to_char(sysdate,'mm')當(dāng)季度select * from 表名 where to_char(to_date(字段名,'yyyy-mm-dd hh24:mi:ss'),'q')=to_char(sysdate,'q')
字段類型為date
當(dāng)天select * from 表名 where to_char(字段名,'dd')=to_char(sysdate,'dd')當(dāng)周select * from 表名 where to_char(字段名,'iw')=to_char(sysdate,'iw')當(dāng)月select * from 表名 where to_char(字段名,'mm')=to_char(sysdate,'mm')當(dāng)季度select * from 表名 where to_char(字段名,'q')=to_char(sysdate,'q')
SQL
當(dāng)天select * from 表名 where DATEPART(dd,字段名) = DATEPART(dd, GETDATE()) and DATEPART(mm, 字段名) = DATEPART(mm, GETDATE()) and DATEPART(yy, 字段名) = DATEPART(yy, GETDATE())當(dāng)周select * from 表名 where DATEPART(wk, 字段名) = DATEPART(wk, GETDATE()) and DATEPART(yy, 字段名) = DATEPART(yy, GETDATE())當(dāng)月select * from 表名 where DATEPART(mm, 字段名) = DATEPART(mm, GETDATE()) and DATEPART(yy, 字段名) = DATEPART(yy, GETDATE())當(dāng)季度select * from 表名 where DATEPART(qq, 字段名) = DATEPART(qq, GETDATE()) and DATEPART(yy,字段名) = DATEPART(yy, GETDATE())
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