我的查询中有以下结果集(其中有两个SELECT查询的UNION)
app_id transaction_id mobile_no user_input1 user_input3 user_input17 user_input110 user_input61 user_input62
104 731 918087318987 Welcome To Onida~Home Appliances Home Appliances~Washing Machine Washing Machine~Fully Automatic Fully Automatic~SPARKLE 65S NULL NULL
104 731 918087318987 NULL NULL NULL NULL Quantity ~2 Amount~2
我想将这两个记录合并为一行
app_id transaction_id mobile_no user_input1 user_input3 user_input17 user_input110 user_input61 user_input62
104 731 918087318987 Welcome To Onida~Home Appliances Home Appliances~Washing Machine Washing Machine~Fully Automatic Fully Automatic~SPARKLE 65S Quantity ~2 Amount~2
我可以提供我的SQL查询,但它太长了。如果需要,将提供。
SQLSchema:
create table `trn_user_log` (
`app_id` int (11),
`transaction_id` int (11),
`mobile_no` varchar (45),
`node_id` bigint (20),
`customer_attribute` varchar (150),
`entered_value` varchar (150)
);
insert into `trn_user_log` (`app_id`, `transaction_id`, `mobile_no`, `node_id`, `customer_attribute`, `entered_value`) values('104','731','918087318987','103','Welcome To Onida','2');
insert into `trn_user_log` (`app_id`, `transaction_id`, `mobile_no`, `node_id`, `customer_attribute`, `entered_value`) values('104','731','918087318987','105','Home Appliances','1');
insert into `trn_user_log` (`app_id`, `transaction_id`, `mobile_no`, `node_id`, `customer_attribute`, `entered_value`) values('104','731','918087318987','119','Washing Machine','1');
insert into `trn_user_log` (`app_id`, `transaction_id`, `mobile_no`, `node_id`, `customer_attribute`, `entered_value`) values('104','731','918087318987','121','Fully Automatic','2');
insert into `trn_user_log` (`app_id`, `transaction_id`, `mobile_no`, `node_id`, `customer_attribute`, `entered_value`) values('104','731','918087318987','169','Quantity ','2');
insert into `trn_user_log` (`app_id`, `transaction_id`, `mobile_no`, `node_id`, `customer_attribute`, `entered_value`) values('104','731','918087318987','170','Amount','2');
create table `mst_node` (
`app_id` int (11),
`node_id` bigint (20),
`parent_node_id` bigint (20),
`display_seq` tinyint (4),
`display_text` varchar (540),
`customer_attribute` varchar (150)
);
insert into `mst_node` (`app_id`, `node_id`, `parent_node_id`, `display_seq`, `display_text`, `customer_attribute`) values('104','103',NULL,'1','Welcome To Onida','Welcome To Onida');
insert into `mst_node` (`app_id`, `node_id`, `parent_node_id`, `display_seq`, `display_text`, `customer_attribute`) values('104','105','103','2','Home Appliances','Home Appliances');
insert into `mst_node` (`app_id`, `node_id`, `parent_node_id`, `display_seq`, `display_text`, `customer_attribute`) values('104','119','105','1','Washing Machine','Washing Machine');
insert into `mst_node` (`app_id`, `node_id`, `parent_node_id`, `display_seq`, `display_text`, `customer_attribute`) values('104','121','119','1','Fully Automatic','Fully Automatic');
insert into `mst_node` (`app_id`, `node_id`, `parent_node_id`, `display_seq`, `display_text`, `customer_attribute`) values('104','124','121','2','SPARKLE 65S ','SPARKLE 65S ');
insert into `mst_node` (`app_id`, `node_id`, `parent_node_id`, `display_seq`, `display_text`, `customer_attribute`) values('104','125','121','3','Sparkle 65X','Sparkle 65X');
insert into `mst_node` (`app_id`, `node_id`, `parent_node_id`, `display_seq`, `display_text`, `customer_attribute`) values('104','126','121','4','Sparkle 62P','Sparkle 62P');
insert into `mst_node` (`app_id`, `node_id`, `parent_node_id`, `display_seq`, `display_text`, `customer_attribute`) values('104','169','124','1','Quantity ','Quantity ');
insert into `mst_node` (`app_id`, `node_id`, `parent_node_id`, `display_seq`, `display_text`, `customer_attribute`) values('104','170','124','2','Amount','Amount');
我的SQL查询:
SELECT *
FROM
(
SELECT T1.app_id,
T1.transaction_id,
T1.mobile_no,
CONVERT(
GROUP_CONCAT(
(CASE T1.node_id
WHEN 103 THEN CONCAT(T1.customer_attribute, '~', T2.display_text)
ELSE NULL
END)) USING LATIN1)
AS user_input1,
CONVERT(
GROUP_CONCAT(
(CASE T1.node_id
WHEN 105 THEN CONCAT(T1.customer_attribute, '~', T2.display_text)
ELSE NULL
END)) USING LATIN1)
AS user_input3,
CONVERT(
GROUP_CONCAT(
(CASE T1.node_id
WHEN 119 THEN CONCAT(T1.customer_attribute, '~', T2.display_text)
ELSE NULL
END)) USING LATIN1)
AS user_input17,
CONVERT(
GROUP_CONCAT(
(CASE T1.node_id
WHEN 121 THEN CONCAT(T1.customer_attribute, '~', T2.display_text)
ELSE NULL
END)) USING LATIN1)
AS user_input110,
CONVERT(
GROUP_CONCAT(
(CASE T1.node_id
WHEN 169 THEN CONCAT(T1.customer_attribute, '~', T2.display_text)
ELSE NULL
END)) USING LATIN1)
AS user_input61,
CONVERT(
GROUP_CONCAT(
(CASE T1.node_id
WHEN 170 THEN CONCAT(T1.customer_attribute, '~', T2.display_text)
ELSE NULL
END)) USING LATIN1)
AS user_input62
FROM trn_user_log T1 INNER JOIN mst_node T2 ON T1.APP_ID = T2.APP_ID
WHERE T1.app_id = 104
AND T1.transaction_id = 731
AND T1.node_id = T2.parent_node_id
AND T2.`display_seq` = T1.entered_value
-- GROUP BY T1.app_id, T1.transaction_id, T1.mobile_no
-- ORDER BY T1.node_id
UNION
SELECT T3.app_id,
T3.transaction_id,
T3.mobile_no,
CONVERT(
GROUP_CONCAT(
(CASE T3.node_id
WHEN 103 THEN CONCAT(T3.customer_attribute, '~', T3.entered_value)
ELSE NULL
END)) USING LATIN1)
AS user_input1,
CONVERT(
GROUP_CONCAT(
(CASE T3.node_id
WHEN 105 THEN CONCAT(T3.customer_attribute, '~', T3.entered_value)
ELSE NULL
END)) USING LATIN1)
AS user_input3,
CONVERT(
GROUP_CONCAT(
(CASE T3.node_id
WHEN 119 THEN CONCAT(T3.customer_attribute, '~', T3.entered_value)
ELSE NULL
END)) USING LATIN1)
AS user_input17,
CONVERT(
GROUP_CONCAT(
(CASE T3.node_id
WHEN 121 THEN CONCAT(T3.customer_attribute, '~', T3.entered_value)
ELSE NULL
END)) USING LATIN1)
AS user_input110,
CONVERT(
GROUP_CONCAT(
(CASE T3.node_id
WHEN 169 THEN CONCAT(T3.customer_attribute, '~', T3.entered_value)
ELSE NULL
END)) USING LATIN1)
AS user_input61,
CONVERT(
GROUP_CONCAT(
(CASE T3.node_id
WHEN 170 THEN CONCAT(T3.customer_attribute, '~', T3.entered_value)
ELSE NULL
END)) USING LATIN1)
AS user_input62
FROM trn_user_log T3 INNER JOIN mst_node T4 ON T3.APP_ID = T4.APP_ID
WHERE T3.app_id = 104
AND T3.transaction_id = 731
AND T3.node_id = T4.node_id
AND not exists (select 1 from mst_node b where b.parent_node_id = t4.node_id)
-- GROUP BY T3.app_id, T3.transaction_id, T3.mobile_no
-- ORDER BY T3.node_id
)T
GROUP BY T.app_id, T.transaction_id, T.mobile_no
答案 0 :(得分:2)
您可以JOIN
两个相互选择,然后在列上执行COALESCE
。
http://www.sqlfiddle.com/#!2/bfcd8/15
SELECT app_id,transaction_id,mobile_no,
coalesce(tt1.USER_INPUT1,tt2.USER_INPUT1) AS USER_INPUT1,
coalesce(tt1.USER_INPUT3,tt2.USER_INPUT3) AS USER_INPUT3,
coalesce(tt1.USER_INPUT17,tt2.USER_INPUT17) AS USER_INPUT17,
coalesce(tt1.USER_INPUT110,tt2.USER_INPUT110) AS USER_INPUT110,
coalesce(tt1.USER_INPUT61,tt2.USER_INPUT61) AS USER_INPUT61,
coalesce(tt1.USER_INPUT62,tt2.USER_INPUT62) AS USER_INPUT62
FROM (SELECT T1.app_id,
T1.transaction_id,
T1.mobile_no,
CONVERT(
GROUP_CONCAT(
(CASE T1.node_id
WHEN 103 THEN CONCAT(T1.customer_attribute, '~', T2.display_text)
ELSE NULL
END)) USING LATIN1)
AS user_input1,
CONVERT(
GROUP_CONCAT(
(CASE T1.node_id
WHEN 105 THEN CONCAT(T1.customer_attribute, '~', T2.display_text)
ELSE NULL
END)) USING LATIN1)
AS user_input3,
CONVERT(
GROUP_CONCAT(
(CASE T1.node_id
WHEN 119 THEN CONCAT(T1.customer_attribute, '~', T2.display_text)
ELSE NULL
END)) USING LATIN1)
AS user_input17,
CONVERT(
GROUP_CONCAT(
(CASE T1.node_id
WHEN 121 THEN CONCAT(T1.customer_attribute, '~', T2.display_text)
ELSE NULL
END)) USING LATIN1)
AS user_input110,
CONVERT(
GROUP_CONCAT(
(CASE T1.node_id
WHEN 169 THEN CONCAT(T1.customer_attribute, '~', T2.display_text)
ELSE NULL
END)) USING LATIN1)
AS user_input61,
CONVERT(
GROUP_CONCAT(
(CASE T1.node_id
WHEN 170 THEN CONCAT(T1.customer_attribute, '~', T2.display_text)
ELSE NULL
END)) USING LATIN1)
AS user_input62
FROM trn_user_log T1 INNER JOIN mst_node T2 ON T1.APP_ID = T2.APP_ID
WHERE T1.app_id = 104
AND T1.transaction_id = 731
AND T1.node_id = T2.parent_node_id
AND T2.`display_seq` = T1.entered_value
-- GROUP BY T1.app_id, T1.transaction_id, T1.mobile_no
-- ORDER BY T1.node_id
) AS tt1
LEFT JOIN
(SELECT T3.app_id,
T3.transaction_id,
T3.mobile_no,
CONVERT(
GROUP_CONCAT(
(CASE T3.node_id
WHEN 103 THEN CONCAT(T3.customer_attribute, '~', T3.entered_value)
ELSE NULL
END)) USING LATIN1)
AS user_input1,
CONVERT(
GROUP_CONCAT(
(CASE T3.node_id
WHEN 105 THEN CONCAT(T3.customer_attribute, '~', T3.entered_value)
ELSE NULL
END)) USING LATIN1)
AS user_input3,
CONVERT(
GROUP_CONCAT(
(CASE T3.node_id
WHEN 119 THEN CONCAT(T3.customer_attribute, '~', T3.entered_value)
ELSE NULL
END)) USING LATIN1)
AS user_input17,
CONVERT(
GROUP_CONCAT(
(CASE T3.node_id
WHEN 121 THEN CONCAT(T3.customer_attribute, '~', T3.entered_value)
ELSE NULL
END)) USING LATIN1)
AS user_input110,
CONVERT(
GROUP_CONCAT(
(CASE T3.node_id
WHEN 169 THEN CONCAT(T3.customer_attribute, '~', T3.entered_value)
ELSE NULL
END)) USING LATIN1)
AS user_input61,
CONVERT(
GROUP_CONCAT(
(CASE T3.node_id
WHEN 170 THEN CONCAT(T3.customer_attribute, '~', T3.entered_value)
ELSE NULL
END)) USING LATIN1)
AS user_input62
FROM trn_user_log T3 INNER JOIN mst_node T4 ON T3.APP_ID = T4.APP_ID
WHERE T3.app_id = 104
AND T3.transaction_id = 731
AND T3.node_id = T4.node_id
AND NOT EXISTS (SELECT 1 FROM mst_node b WHERE b.parent_node_id = t4.node_id)
-- GROUP BY T3.app_id, T3.transaction_id, T3.mobile_no
-- ORDER BY T3.node_id
) AS tt2 USING (app_id, transaction_id, mobile_no)
答案 1 :(得分:0)
包裹你union
和subquery
然后加入。
SELECT *
FROM
(
-- place your unioned query
) a
GROUP BY a.app_id, a.transaction_id, a.mobile_no
答案 2 :(得分:0)
SELECT app_id, transaction_id, mobile_no,
MAX(user_input1) user_input1, MAX(user_input3) user_input3,
MAX(user_input17) user_input17, MAX(user_input110) user_input110,
MAX(user_input61) user_input61, MAX(user_input62) user_input62
FROM (
SELECT T1.app_id,
T1.transaction_id,
T1.mobile_no,
CONVERT(
GROUP_CONCAT(
(CASE T1.node_id
WHEN 103 THEN CONCAT(T1.customer_attribute, '~', T2.display_text)
ELSE NULL
END)) USING LATIN1)
AS user_input1,
CONVERT(
GROUP_CONCAT(
(CASE T1.node_id
WHEN 105 THEN CONCAT(T1.customer_attribute, '~', T2.display_text)
ELSE NULL
END)) USING LATIN1)
AS user_input3,
CONVERT(
GROUP_CONCAT(
(CASE T1.node_id
WHEN 119 THEN CONCAT(T1.customer_attribute, '~', T2.display_text)
ELSE NULL
END)) USING LATIN1)
AS user_input17,
CONVERT(
GROUP_CONCAT(
(CASE T1.node_id
WHEN 121 THEN CONCAT(T1.customer_attribute, '~', T2.display_text)
ELSE NULL
END)) USING LATIN1)
AS user_input110,
CONVERT(
GROUP_CONCAT(
(CASE T1.node_id
WHEN 169 THEN CONCAT(T1.customer_attribute, '~', T2.display_text)
ELSE NULL
END)) USING LATIN1)
AS user_input61,
CONVERT(
GROUP_CONCAT(
(CASE T1.node_id
WHEN 170 THEN CONCAT(T1.customer_attribute, '~', T2.display_text)
ELSE NULL
END)) USING LATIN1)
AS user_input62
FROM trn_user_log T1 INNER JOIN mst_node T2 ON T1.APP_ID = T2.APP_ID
WHERE T1.app_id = 104
AND T1.transaction_id = 731
AND T1.node_id = T2.parent_node_id
AND T2.`display_seq` = T1.entered_value
-- GROUP BY T1.app_id, T1.transaction_id, T1.mobile_no
-- ORDER BY T1.node_id
UNION
SELECT T3.app_id,
T3.transaction_id,
T3.mobile_no,
CONVERT(
GROUP_CONCAT(
(CASE T3.node_id
WHEN 103 THEN CONCAT(T3.customer_attribute, '~', T3.entered_value)
ELSE NULL
END)) USING LATIN1)
AS user_input1,
CONVERT(
GROUP_CONCAT(
(CASE T3.node_id
WHEN 105 THEN CONCAT(T3.customer_attribute, '~', T3.entered_value)
ELSE NULL
END)) USING LATIN1)
AS user_input3,
CONVERT(
GROUP_CONCAT(
(CASE T3.node_id
WHEN 119 THEN CONCAT(T3.customer_attribute, '~', T3.entered_value)
ELSE NULL
END)) USING LATIN1)
AS user_input17,
CONVERT(
GROUP_CONCAT(
(CASE T3.node_id
WHEN 121 THEN CONCAT(T3.customer_attribute, '~', T3.entered_value)
ELSE NULL
END)) USING LATIN1)
AS user_input110,
CONVERT(
GROUP_CONCAT(
(CASE T3.node_id
WHEN 169 THEN CONCAT(T3.customer_attribute, '~', T3.entered_value)
ELSE NULL
END)) USING LATIN1)
AS user_input61,
CONVERT(
GROUP_CONCAT(
(CASE T3.node_id
WHEN 170 THEN CONCAT(T3.customer_attribute, '~', T3.entered_value)
ELSE NULL
END)) USING LATIN1)
AS user_input62
FROM trn_user_log T3 INNER JOIN mst_node T4 ON T3.APP_ID = T4.APP_ID
WHERE T3.app_id = 104
AND T3.transaction_id = 731
AND T3.node_id = T4.node_id
AND not exists (select 1 from mst_node b where b.parent_node_id = t4.node_id)
-- GROUP BY T3.app_id, T3.transaction_id, T3.mobile_no
-- ORDER BY T3.node_id
)T
GROUP BY T.app_id, T.transaction_id, T.mobile_no