1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134
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SET AUTOCOMMIT = 0
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START TRANSACTION
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DROP DATABASE IF EXISTS `base`
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CREATE DATABASE IF NOT EXISTS `base`
DEFAULT CHARACTER SET `latin1`
DEFAULT COLLATE `latin1_general_ci`
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COMMIT
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DROP TABLE IF EXISTS `test`
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CREATE TABLE `test`
( `id` integer unsigned NOT NULL auto_increment Primary Key,
`date` date NOT NULL,
`gradian` numeric(5,2) NOT NULL
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
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INSERT IGNORE INTO `test` (`date`,`gradian`) value
('2016-08-01 15:00:00', 23.00), ('2016-08-01 15:00:01', 22.60), ('2016-08-01 15:00:02', 22.50), ('2016-08-01 15:00:03', 22.30),
('2016-08-01 15:00:04', 22.00), ('2016-08-01 15:00:05', 21.90), ('2016-08-01 15:00:06', 21.80), ('2016-08-01 15:00:07', 21.60),
('2016-08-01 15:00:08', 21.50), ('2016-08-01 15:00:09', 21.30), ('2016-08-01 15:00:10', 21.10), ('2016-08-01 15:00:11', 21.50),
('2016-08-02 14:00:00', 23.10), ('2016-08-02 14:00:01', 22.70), ('2016-08-02 14:00:02', 22.60), ('2016-08-02 14:00:03', 22.40),
('2016-08-02 14:00:04', 22.10), ('2016-08-02 14:00:05', 22.00), ('2016-08-02 14:00:06', 21.90), ('2016-08-02 14:00:07', 21.70),
('2016-08-03 13:00:00', 23.20), ('2016-08-03 13:00:01', 22.80), ('2016-08-03 13:00:02', 22.70), ('2016-08-03 13:00:03', 22.50)
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select * from test
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+----+------------+---------+
| id | date | gradian |
+----+------------+---------+
| 1 | 2016-08-01 | 23.00 |
| 2 | 2016-08-01 | 22.60 |
| 3 | 2016-08-01 | 22.50 |
| 4 | 2016-08-01 | 22.30 |
| 5 | 2016-08-01 | 22.00 |
| 6 | 2016-08-01 | 21.90 |
| 7 | 2016-08-01 | 21.80 |
| 8 | 2016-08-01 | 21.60 |
| 9 | 2016-08-01 | 21.50 |
| 10 | 2016-08-01 | 21.30 |
| 11 | 2016-08-01 | 21.10 |
| 12 | 2016-08-01 | 21.50 |
| 13 | 2016-08-02 | 23.10 |
| 14 | 2016-08-02 | 22.70 |
| 15 | 2016-08-02 | 22.60 |
| 16 | 2016-08-02 | 22.40 |
| 17 | 2016-08-02 | 22.10 |
| 18 | 2016-08-02 | 22.00 |
| 19 | 2016-08-02 | 21.90 |
| 20 | 2016-08-02 | 21.70 |
| 21 | 2016-08-03 | 23.20 |
| 22 | 2016-08-03 | 22.80 |
| 23 | 2016-08-03 | 22.70 |
| 24 | 2016-08-03 | 22.50 |
+----+------------+---------+
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DROP TABLE IF EXISTS `sample`
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CREATE TABLE `sample` as
select quantieme, concat('{"jour": "', jour, '", ', group_concat( concat('"grad', rang, '": ', gradian) order by rang separator ', '), '}') as 'json'
from (
select dayofmonth (t1.date) as quantieme,
date_format(t1.date, '%b-%d') as jour,
t1.gradian,
count(t2.date)+1 as rang
from test as t1
left outer join test as t2
on t2.date = t1.date
and t2.id < t1.id
group by t1.id, t2.date
) as x
group by jour
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select * from sample
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+-----------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| quantieme | json |
+-----------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| 1 | {"jour": "aoû-01", "grad1": 23.00, "grad2": 22.60, "grad3": 22.50, "grad4": 22.30, "grad5": 22.00, "grad6": 21.90, "grad7": 21.80, "grad8": 21.60, "grad9": 21.50, "grad10": 21.30, "grad11": 21.10, "grad12": 21.50} |
| 2 | {"jour": "aoû-02", "grad1": 23.10, "grad2": 22.70, "grad3": 22.60, "grad4": 22.40, "grad5": 22.10, "grad6": 22.00, "grad7": 21.90, "grad8": 21.70} |
| 3 | {"jour": "aoû-03", "grad1": 23.20, "grad2": 22.80, "grad3": 22.70, "grad4": 22.50} |
+-----------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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select json from sample where quantieme = 1 into OUTFILE 'E:\\22.MySql\\41.Unload\\Ex_02\\Json_01.txt' FIELDS TERMINATED BY '\r\n' ENCLOSED BY '' LINES TERMINATED BY '\r\n'
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select json from sample where quantieme = 2 into OUTFILE 'E:\\22.MySql\\41.Unload\\Ex_02\\Json_02.txt' FIELDS TERMINATED BY '\r\n' ENCLOSED BY '' LINES TERMINATED BY '\r\n'
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select json from sample where quantieme = 3 into OUTFILE 'E:\\22.MySql\\41.Unload\\Ex_02\\Json_03.txt' FIELDS TERMINATED BY '\r\n' ENCLOSED BY '' LINES TERMINATED BY '\r\n'
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COMMIT
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SET AUTOCOMMIT = 0
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