计算出本月第一天到最后一天的日期:
--select date(rtrim(char(year(min(start_time))))||'-'||rtrim(char(month(min(start_time))))||'-1') as startTime,date(rtrim(char(year(max(start_time))))||'-'||rtrim(char(month(max(start_time)+1 month)))||'-1') as endTime from table_A t; 这个语句有点问题,月份是12月的时候,计算的年,没变化。
计算出本月时间和下月时间的日期:
select date(start_time) as startTime,date(start_time) +1 month as endTime from REPAYMENT
统计本月数据:
select sum(MONTHLY_REPAYMENTS) as totle from TABLE_A where ID='123' AND date('2012-11-01') < date(current timestamp ) and date('2012-12-01') > date(current timestamp)