mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-10 09:32:06 +00:00
35 lines
1.2 KiB
SQL
35 lines
1.2 KiB
SQL
DROP TABLE IF EXISTS data2013;
|
|
DROP TABLE IF EXISTS data2014;
|
|
DROP TABLE IF EXISTS data2015;
|
|
|
|
CREATE TABLE data2013 (name String, value UInt32) ENGINE = Memory;
|
|
CREATE TABLE data2014 (name String, value UInt32) ENGINE = Memory;
|
|
CREATE TABLE data2015 (data_name String, data_value UInt32) ENGINE = Memory;
|
|
|
|
INSERT INTO data2013(name,value) VALUES('Alice', 1000);
|
|
INSERT INTO data2013(name,value) VALUES('Bob', 2000);
|
|
INSERT INTO data2013(name,value) VALUES('Carol', 5000);
|
|
|
|
INSERT INTO data2014(name,value) VALUES('Alice', 2000);
|
|
INSERT INTO data2014(name,value) VALUES('Bob', 2000);
|
|
INSERT INTO data2014(name,value) VALUES('Dennis', 35000);
|
|
|
|
INSERT INTO data2015(data_name, data_value) VALUES('Foo', 42);
|
|
INSERT INTO data2015(data_name, data_value) VALUES('Bar', 1);
|
|
|
|
SELECT val FROM
|
|
(SELECT value AS val FROM data2013 WHERE name = 'Alice'
|
|
UNION ALL
|
|
SELECT value AS val FROM data2014 WHERE name = 'Alice')
|
|
ORDER BY val ASC;
|
|
|
|
SELECT val, name FROM
|
|
(SELECT value AS val, value AS val_1, name FROM data2013 WHERE name = 'Alice'
|
|
UNION ALL
|
|
SELECT value AS val, value, name FROM data2014 WHERE name = 'Alice')
|
|
ORDER BY val ASC;
|
|
|
|
DROP TABLE data2013;
|
|
DROP TABLE data2014;
|
|
DROP TABLE data2015;
|