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36 lines
1.0 KiB
Plaintext
36 lines
1.0 KiB
Plaintext
DROP DATABASE IF EXISTS mcs278_db;
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CREATE DATABASE mcs278_db;
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USE mcs278_db;
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CREATE TABLE t1
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(
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t1_DATE DATE,
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t1_TIMESTAMP TIMESTAMP,
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t1_DATETIME DATETIME
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)ENGINE=Columnstore;
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INSERT INTO t1 VALUES('1991-05-30', '1999-10-28 01:00:50', '2020-12-11 01:08:59');
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INSERT INTO t1 VALUES('2991-10-13', '1972-11-22 11:19:52', '2002-02-21 05:28:37');
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SELECT WEEKDAY('2020-10-12') FROM t1 LIMIT 1;
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WEEKDAY('2020-10-12')
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0
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SELECT WEEKDAY('2020-10-13 12:13:14') FROM t1 LIMIT 1;
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WEEKDAY('2020-10-13 12:13:14')
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1
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SELECT WEEKDAY('12:13:14') FROM t1 LIMIT 1;
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WEEKDAY('12:13:14')
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NULL
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Warnings:
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Warning 1292 Incorrect datetime value: '12:13:14'
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SELECT t1_DATE, WEEKDAY(t1_DATE) FROM t1 ORDER BY 1;
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t1_DATE WEEKDAY(t1_DATE)
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1991-05-30 3
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2991-10-13 3
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SELECT t1_DATETIME, WEEKDAY(t1_DATETIME) FROM t1 ORDER BY 1;
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t1_DATETIME WEEKDAY(t1_DATETIME)
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2002-02-21 05:28:37 3
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2020-12-11 01:08:59 4
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SELECT t1_TIMESTAMP, WEEKDAY(t1_TIMESTAMP) FROM t1 ORDER BY 1;
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t1_TIMESTAMP WEEKDAY(t1_TIMESTAMP)
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1972-11-22 11:19:52 2
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1999-10-28 01:00:50 3
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DROP DATABASE mcs278_db;
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