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- Interval Type 12960
- INTERVAL s represent periods of time that can be added to or subtracted from DATE , TIMESTAMP , TIMESTAMPTZ , or TIME values. Name Description INTERVAL Period of time An INTERVAL can be constructed by providing amounts together with units.
...f days (February has fewer days than March) and a day doesn't correspond to a fixed amount of microseconds (days can be 25 hours or 23 hours long because of daylight saving time). The division into components makes the INTERVAL class suitable for addi...t function, the months component is additionally split into years and months, and the microseconds component is split into hours, minutes and microseconds. The days component is not split into additional units. To demonstrate this, the following query...* 12_345) DAYS + INTERVAL (random() * 12_345) MONTHS ) ) _(period); Warning The microseconds component is split only into hours, minutes and microseconds, rather than hours, minutes, seconds and microseconds. The following table describes how these p... - https://man.mtool.work/duckdb/2.0/sql/data_types/interval.html
- Date Part Functions 9304
- The date_part , date_trunc and date_diff functions can be used to extract or manipulate parts of temporal types such as TIMESTAMP , TIMESTAMPTZ , DATE and INTERVAL . The parts to be extracted or manipulated are specified by one of the strin
...ry cent , centuries , c 21 day Gregorian day days , d , dayofmonth 3 decade Gregorian decade dec , decades , decs 202 hour Hours hr , hours , hrs , h 11 microseconds Sub-minute microseconds microsecond , us , usec , usecs , usecond , useconds 44123456...January 1 = 1). decade(date) Decade (year / 10). epoch(date) Seconds since 1970-01-01. era(date) Calendar era. hour(date) Hours. isodow(date) Numeric ISO weekday (Monday = 1, Sunday = 7). isoyear(date) ISO Year number (Starts on Monday of week contai...(date) | Description | Calendar era. | | Example | era(DATE '0044-03-15 (BC)') | | Result | 0 | hour(date) | Description | Hours. | | Example | hour(timestamp '2021-08-03 11:59:44.123456') | | Result | 11 | isodow(date) | Description | Numeric ISO wee... - https://man.mtool.work/duckdb/2.0/sql/functions/datepart.html
- Interval Functions 9103
- This section describes functions and operators for examining and manipulating INTERVAL values. Interval Operators The table below shows the available mathematical operators for INTERVAL types. Operator Description Example Result + Addition
...nstruct a century interval. to_days(integer) Construct a day interval. to_decades(integer) Construct a decade interval. to_hours(integer) Construct an hour interval. to_microseconds(integer) Construct a microsecond interval. to_millennia(integer) Cons...cades(integer) | Description | Construct a decade interval. | | Example | to_decades(5) | | Result | INTERVAL 50 YEAR | to_hours(integer) | Description | Construct an hour interval. | | Example | to_hours(5) | | Result | INTERVAL 5 HOUR | to_microseco... - https://man.mtool.work/duckdb/2.0/sql/functions/interval.html
- Timestamp Types 7914
- Timestamps represent points in time. As such, they combine DATE and TIME information. They can be created using the type name followed by a string formatted according to the ISO 8601 format, YYYY-MM-DD hh:mm:ss[.zzzzzzzzz][+-TT[:tt]] , whic
...rs when daylight saving time changes. The example below contains a daylight saving time change where the "hour" bin is two hours long. To distinguish the two hours, another range of bins containing the offset from UTC is needed: Time Zone Support The... - https://man.mtool.work/duckdb/2.0/sql/data_types/timestamp.html
- Time Functions 7805
- This section describes functions and operators for examining and manipulating TIME values . Time Operators The table below shows the available mathematical operators for TIME types. Operator Description Example Result + addition of an INTER
...make_time(bigint, bigint, double) The time for the given parts. The only date parts that are defined for times are epoch , hours , minutes , seconds , milliseconds and microseconds . current_localtime() | Description | Current time (start of current t... - https://man.mtool.work/duckdb/2.0/sql/functions/time.html
- Unofficial and Unsupported Platforms 7695
- Warning The platforms listed on this page are not officially supported. The build instructions are provided on a best-effort basis. Community contributions are very welcome. DuckDB is built and distributed for several platforms with differe
...duckdb cd duckdb mkdir build && cd build cmake .. -DCMAKE_BUILD_TYPE=Release make -j$(nproc) Build time is approximately 2 hours on an 8-core SpacemiT K1. The resulting binary works out of the box: ./duckdb -c “SELECT 'Hello from RISC-V' AS message;”... - https://man.mtool.work/duckdb/2.0/dev/building/unofficial_and_unsupported_platfo...
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