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56 lines
2.2 KiB
SQL
56 lines
2.2 KiB
SQL
-- month with 30 days
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WITH
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toDate('2021-09-12') AS date_value,
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toDateTime('2021-09-12 11:22:33') AS date_time_value,
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toDateTime64('2021-09-12 11:22:33', 3) AS date_time_64_value
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SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value);
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-- month with 31 days
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WITH
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toDate('2021-03-12') AS date_value,
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toDateTime('2021-03-12 11:22:33') AS date_time_value,
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toDateTime64('2021-03-12 11:22:33', 3) AS date_time_64_value
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SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value);
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-- non leap year February
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WITH
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toDate('2021-02-12') AS date_value,
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toDateTime('2021-02-12 11:22:33') AS date_time_value,
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toDateTime64('2021-02-12 11:22:33', 3) AS date_time_64_value
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SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value);
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-- leap year February
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WITH
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toDate('2020-02-12') AS date_value,
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toDateTime('2020-02-12 11:22:33') AS date_time_value,
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toDateTime64('2020-02-12 11:22:33', 3) AS date_time_64_value
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SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value);
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-- December 31 for non-leap year
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WITH
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toDate('2021-12-12') AS date_value,
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toDateTime('2021-12-12 11:22:33') AS date_time_value,
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toDateTime64('2021-12-12 11:22:33', 3) AS date_time_64_value
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SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value);
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-- December 31 for leap year
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WITH
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toDate('2020-12-12') AS date_value,
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toDateTime('2020-12-12 11:22:33') AS date_time_value,
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toDateTime64('2020-12-12 11:22:33', 3) AS date_time_64_value
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SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value);
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-- aliases
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WITH
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toDate('2020-12-12') AS date_value
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SELECT last_day(date_value), LAST_DAY(date_value);
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-- boundaries
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WITH
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toDate('1970-01-01') AS date_value,
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toDateTime('1970-01-01 11:22:33') AS date_time_value,
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toDateTime64('1900-01-01 11:22:33', 3) AS date_time_64_value
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SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value)
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SETTINGS enable_extended_results_for_datetime_functions = true;
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