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128 lines
2.0 KiB
Plaintext
128 lines
2.0 KiB
Plaintext
DROP DATABASE IF EXISTS mcs139_db;
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CREATE DATABASE mcs139_db;
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USE mcs139_db;
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CREATE TABLE t1 (a CHAR(1), b INT)ENGINE=Columnstore;
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INSERT INTO t1 VALUES ('', NULL),('a', 123),('a', 1),('b', 123),('c', 1861),('c', 1991),('d', 10701),('d', 1071),('a', 92);
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SELECT a, b, MIN(b) OVER(ORDER BY a) min FROM t1;
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a b min
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NULL NULL NULL
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a 92 1
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a 1 1
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a 123 1
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b 123 1
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c 1991 1
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c 1861 1
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d 1071 1
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d 10701 1
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SELECT a, b, MIN(b) OVER(ORDER BY b DESC) min FROM t1;
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a b min
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d 10701 10701
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c 1991 1991
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c 1861 1861
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d 1071 1071
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a 123 123
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b 123 123
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a 92 92
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a 1 1
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NULL NULL 1
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SELECT a, b, MIN(b) OVER w min FROM t1 WINDOW w AS (ORDER BY a DESC);
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a b min
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d 10701 1071
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d 1071 1071
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c 1861 1071
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c 1991 1071
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b 123 123
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a 92 1
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a 123 1
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a 1 1
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NULL NULL 1
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SELECT a, b, MIN(b) OVER w min FROM t1 WINDOW w AS (ORDER BY b);
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a b min
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NULL NULL NULL
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a 1 1
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a 92 1
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b 123 1
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a 123 1
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d 1071 1
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c 1861 1
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c 1991 1
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d 10701 1
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SELECT a, b, MIN(b) OVER(PARTITION BY a) min FROM t1;
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a b min
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NULL NULL NULL
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a 92 1
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a 1 1
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a 123 1
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b 123 123
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c 1991 1861
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c 1861 1861
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d 1071 1071
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d 10701 1071
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SELECT a, b, MIN(b) OVER(PARTITION BY b) min FROM t1;
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a b min
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NULL NULL NULL
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a 1 1
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a 92 92
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b 123 123
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a 123 123
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d 1071 1071
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c 1861 1861
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c 1991 1991
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d 10701 10701
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SELECT a, b, MIN(b) OVER(PARTITION BY a ORDER BY a DESC) min FROM t1;
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a b min
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NULL NULL NULL
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a 92 1
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a 1 1
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a 123 1
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b 123 123
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c 1991 1861
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c 1861 1861
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d 1071 1071
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d 10701 1071
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SELECT a, b, MIN(b) OVER(PARTITION BY a ORDER BY b DESC) min FROM t1;
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a b min
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NULL NULL NULL
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a 123 123
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a 92 92
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a 1 1
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b 123 123
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c 1991 1991
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c 1861 1861
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d 10701 10701
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d 1071 1071
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SELECT a, b, MIN(b) OVER(PARTITION BY a ORDER BY b ASC) min FROM t1;
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a b min
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NULL NULL NULL
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a 1 1
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a 92 1
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a 123 1
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b 123 123
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c 1861 1861
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c 1991 1861
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d 1071 1071
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d 10701 1071
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SELECT a, b, MIN(b) OVER(PARTITION BY b ORDER BY a DESC) min FROM t1;
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a b min
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NULL NULL NULL
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a 1 1
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a 92 92
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b 123 123
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a 123 123
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d 1071 1071
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c 1861 1861
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c 1991 1991
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d 10701 10701
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SELECT a, b, MIN(b) OVER(PARTITION BY b ORDER BY b DESC) min FROM t1;
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a b min
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NULL NULL NULL
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a 1 1
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a 92 92
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b 123 123
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a 123 123
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d 1071 1071
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c 1861 1861
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c 1991 1991
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d 10701 10701
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DROP DATABASE mcs139_db;
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