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40 lines
1.2 KiB
Plaintext
40 lines
1.2 KiB
Plaintext
DROP DATABASE IF EXISTS mcs253_db;
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CREATE DATABASE mcs253_db;
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USE mcs253_db;
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CREATE TABLE t1
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(
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t1_INT INT,
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t1_DECIMAL DECIMAL(12,5),
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t1_TEXT TEXT,
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t1_DATE DATE,
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t1_TIME TIME
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)ENGINE=Columnstore;
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INSERT INTO t1 VALUES(103, 1234.5699, 'pqrstuvwxyz', '1997-12-12', '22:12:02');
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INSERT INTO t1 VALUES(-7299, 111.99, 'abcdefghijklm', '2001-1-1', '23:59:59');
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INSERT INTO t1 VALUES(9913, 98765.4321, repeat('q', 5), '09-12-11', '01:08:59');
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SELECT GREATEST(1,-1,0) FROM t1 LIMIT 1;
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GREATEST(1,-1,0)
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1
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SELECT GREATEST(-999, -5, -1) FROM t1 LIMIT 1;
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GREATEST(-999, -5, -1)
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-1
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SELECT GREATEST(0, 0.999, 'a') FROM t1 LIMIT 1;
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GREATEST(0, 0.999, 'a')
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0.999
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Warnings:
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Warning 1292 Truncated incorrect DOUBLE value: 'a'
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SELECT GREATEST('a', 'oo', 'z') FROM t1 LIMIT 1;
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GREATEST('a', 'oo', 'z')
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z
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SELECT t1_INT, t1_DECIMAL, GREATEST(t1_INT, t1_DECIMAL) FROM t1 ORDER BY 1;
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t1_INT t1_DECIMAL GREATEST(t1_INT, t1_DECIMAL)
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-7299 111.99000 111.99000
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103 1234.56990 1234.56990
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9913 98765.43210 98765.43210
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SELECT t1_INT*0, t1_INT*10, t1_INT*-10, GREATEST(t1_INT*0, t1_INT*10, t1_INT*-10) FROM t1 ORDER BY 1;
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t1_INT*0 t1_INT*10 t1_INT*-10 GREATEST(t1_INT*0, t1_INT*10, t1_INT*-10)
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0 1030 -1030 1030
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0 -72990 72990 72990
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0 99130 -99130 99130
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DROP DATABASE mcs253_db;
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