hive：子查询

insert into table branch_atmzc_sum
Select  XT_OP_TRL, SA_TX_DT,"取款-存款",b.cr_tx_amt- a.cr_tx_amt as cr_tx_amt from branch_atmzc a join  branch_atmzc b  on (a.XT_OP_TRL = b.XT_OP_TRL and a.SA_TX_DT = b.SA_TX_DT and a.tran_cd = ‘ATM存款‘ and b.tran_cd = ‘ATM取款‘), counts from branch_atmzc
group by XT_OP_TRL, SA_TX_DT,cr_tx_amt,counts;

insert into table branch_atmzc_sum
Select a.XT_OP_TRL, a.SA_TX_DT,"取款-存款",b.cr_tx_amt- a.cr_tx_amt ,b.counts+a.counts  from branch_atmzc a join  branch_atmzc b  on (a.XT_OP_TRL = b.XT_OP_TRL and a.SA_TX_DT = b.SA_TX_DT and a.tran_cd = ‘ATM存款‘ and b.tran_cd = ‘ATM取款‘)

SELECT
	t1.产品类型,
	COUNT(DISTINCT (IF(t2.用户ID IS NULL, NULL, t1.用户ID))) AS KEEP_UV
FROM
(
	SELECT
		产品类型,
		用户ID
	FROM 事实表
	WHERE (`DATE` >= 20140201 AND `DATE` <= 20140228)
) t1
LEFT OUTER JOIN
(
	SELECT
		产品类型,
		用户ID
	FROM 事实表
	WHERE (`DATE` >= 20140101 AND `DATE` <= 20140131)
) t2 ON (t1.产品类型 = t2.产品类型 AND t1.用户ID = t2.用户ID)
GROUP BY t1.产品类型

SELECT
	产品类型,
	COUNT(DISTINCT t1.用户ID) AS KEEP_UV
FROM
(
	SELECT
		产品类型,
		用户ID
	FROM 事实表
	WHERE (`DATE` >= 20140201 AND `DATE` <= 20140228)
) t1
LEFT SEMI JOIN
(
	SELECT
		产品类型,
		用户ID
	FROM 事实表
	WHERE (`DATE` >= 20140101 AND `DATE` <= 20140131)
) t2 ON (t1.产品类型 = t2.产品类型 AND t1.用户ID = t2.用户ID)
GROUP BY 产品类型