Results of 1 - 10 of about 19 for days (0.002 sec.)
- Interval Type 14309
- 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.
...Units that aren't months , days , or microseconds are converted to equivalent amounts in the next smaller of these three basis units. SELECT INTERVAL 1 YE...INTERVAL 18 MONTHS . Three independent basis units are necessary because a month does not correspond to a fixed amount of days (February has fewer days than March) and a day doesn't correspond to a fixed amount of microseconds (days can be 25 hours...dditionally 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 generates an INTERVAL called period... - https://man.mtool.work/duckdb/2.0/sql/data_types/interval.html
- Date Functions 10808
- This section describes functions and operators for examining and manipulating DATE values. Date Operators The table below shows the available mathematical operators for DATE types. Operator Description Example Result + addition of days (int
...'1992-03-22' + INTERVAL 5 DAY 1992-03-27 00:00:00 + addition of a variable INTERVAL SELECT DATE '1992-03-22' + INTERVAL (d.days) DAY FROM (VALUES (5), (11)) d(days) 1992-03-27 00:00:00 and 1992-04-02 00:00:00 - subtraction of DATE s DATE '1992-03-27'...92-03-27' - INTERVAL 5 DAY 1992-03-22 00:00:00 - subtraction of a variable INTERVAL SELECT DATE '1992-03-27' - INTERVAL (d.days) DAY FROM (VALUES (5), (11)) d(days) 1992-03-22 00:00:00 and 1992-03-16 00:00:00 Adding to or subtracting from infinite va...tiples of part . date_trunc(part, date) Truncate to specified precision . dayname(date) The (English) name of the weekday. days_in_month(date) The number of days in the month of the given date. extract(part from date) Get subfield from a date. greate... - https://man.mtool.work/duckdb/2.0/sql/functions/date.html
- Window Functions 10672
- DuckDB supports window functions , which can use multiple rows to calculate a value for each row. Window functions are blocking operators , i.e., they require their entire input to be buffered, making them one of the most memory-intensive o
...window query: SELECT "Plant", "Date", avg("MWh") OVER ( PARTITION BY "Plant" ORDER BY "Date" ASC RANGE BETWEEN INTERVAL 3 DAYS PRECEDING AND INTERVAL 3 DAYS FOLLOWING) AS "MWh 7-day Moving Average" FROM "Generation History" ORDER BY 1, 2; This query...orders each plant's partition by Date (to put the energy measurements next to each other), and uses a RANGE frame of three days on either side of each day for the avg (to handle any missing days). This is the result: Plant Date MWh 7-day Moving Avera...ant to know how an athlete's time in an event compares to the average of all the times recorded for their event within ±10 days: SELECT event, date, athlete, avg(time) OVER w AS recent, FROM results WINDOW w AS ( PARTITION BY event ORDER BY date RANG... - https://man.mtool.work/duckdb/2.0/sql/functions/window_functions.html
- Node.js Client (Neo) 9186
- Installation To use the DuckDB Node.js client, visit the Node.js installation page . The latest stable version of the DuckDB Node.js (Neo) client is 2.0.0. An API for using DuckDB in Node.js . The primary package, @duckdb/node-api , is a hi
...2' ); const rows = reader.getRowsJson(); // [ // [ // "-9223372036854775808", // "5877642-06-25 (BC)", // { "months": 0, "days": 0, "micros": "0" } // ], // [ // "9223372036854775807", // "5881580-07-10", // { "months": 999, "days": 999, "micros": "...ectsJson(); // [ // { // "bigint": "-9223372036854775808", // "date": "5877642-06-25 (BC)", // "interval": { "months": 0, "days": 0, "micros": "0" } // }, // { // "bigint": "9223372036854775807", // "date": "5881580-07-10", // "interval": { "months":...999, "days": 999, "micros": "999999999" } // } // ] const columns = reader.getColumnsJson(); // [ // [ "-9223372036854775808", "92233... - https://man.mtool.work/duckdb/2.0/clients/node_neo/overview.html
- Interval Functions 8930
- 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
...at overflow their range are carried over into the next larger unit. to_centuries(integer) Construct a century interval. to_days(integer) Construct a day interval. to_decades(integer) Construct a decade interval. to_hours(integer) Construct an hour in...units that overflow their range are carried over into the next larger unit. | | Example | normalized_interval(INTERVAL '30 days') | | Result | INTERVAL 1 MONTH | to_centuries(integer) | Description | Construct a century interval. | | Example | to_cen...turies(5) | | Result | INTERVAL 500 YEAR | to_days(integer) | Description | Construct a day interval. | | Example | to_days(5) | | Result | INTERVAL 5 DAY | to_decades(integ... - https://man.mtool.work/duckdb/2.0/sql/functions/interval.html
- Merge Statement for SCD Type 2 8588
- This is a practical, step-by-step guide to using DuckDB's MERGE statement (introduced in v1.4.0) to perform upserts and build Slowly Changing Dimension Type 2 (SCD Type 2) tables . Type 2 SCDs let you keep full historical versions of record
...ERT INTO master_ducks VALUES (nextval('duck_record_seq'), 101, 'Quackers', 'Mallard', 'Pond A', CURRENT_DATE - INTERVAL '2 days', NULL, true), (nextval('duck_record_seq'), 102, 'Waddles', 'Pekin', 'Pond A', CURRENT_DATE - INTERVAL '2 days', NULL, tru...e), (nextval('duck_record_seq'), 103, 'Feathers', 'Rouen', 'Pond B', CURRENT_DATE - INTERVAL '2 days', NULL, true), (nextval('duck_record_seq'), 105, 'Puddles', 'Indian Runner', 'Pond A', CURRENT_DATE - INTERVAL '2 days', N... - https://man.mtool.work/duckdb/2.0/guides/sql_features/merge.html
- GROUPING SETS 8588
- GROUPING SETS , ROLLUP and CUBE can be used in the GROUP BY clause to perform a grouping over multiple dimensions within the same query. Note that this syntax is not compatible with GROUP BY ALL . Examples Compute the average income along t
...group for which the super-aggregate is generated. At this point, an example might help. Consider the following query: WITH days AS ( SELECT year("generate_series") AS y, quarter("generate_series") AS q, month("generate_series") AS m FROM generate_ser...ies(DATE '2023-01-01', DATE '2023-12-31', INTERVAL 1 DAY) ) SELECT y, q, m, GROUPING_ID(y, q, m) AS "grouping_id()" FROM days GROUP BY GROUPING SETS ( (y, q, m), (y, q), (y), () ) ORDER BY y, q, m; These are the results: y q m grouping_id() 2023 1...ne-but-last expression passed to GROUPING_ID() , and so on. This may become clearer by casting GROUPING_ID() to BIT : WITH days AS ( SELECT year("generate_series") AS y, quarter("generate_series") AS q, month("generate_series") AS m FROM generate_ser... - https://man.mtool.work/duckdb/2.0/sql/query_syntax/grouping_sets.html
- Timestamp with Time Zone Functions 8059
- This section describes functions and operators for examining and manipulating TIMESTAMP WITH TIME ZONE (or TIMESTAMPTZ ) values . See also the related TIMESTAMP functions . Time zone support is provided by the built-in ICU extension . In th
...+ INTERVAL 5 DAY 1992-03-27 01:02:03 - subtraction of TIMESTAMPTZ s TIMESTAMPTZ '1992-03-27' - TIMESTAMPTZ '1992-03-22' 5 days - subtraction of an INTERVAL TIMESTAMPTZ '1992-03-27 01:02:03' - INTERVAL 5 DAY 1992-03-22 01:02:03 Adding to or subtracti...the two timestamps. | | Example | age(TIMESTAMPTZ '2001-04-10', TIMESTAMPTZ '1992-09-20') | | Result | 8 years 6 months 20 days | age(timestamptz) | Description | Subtract from current_date. | | Example | age(TIMESTAMP '1992-09-20') | | Result | 29 y...ears 1 month 27 days 12:39:00.844 | date_diff(part, starttimestamptz, endtimestamptz) | Description | The signed number of part boundaries betw... - https://man.mtool.work/duckdb/2.0/sql/functions/timestamptz.html
- Enum Data Type 7922
- Name Description ENUM Dictionary representing all possible string values of a column The enum type represents a dictionary data structure with all possible unique values of a column. For example, a column storing the days of the week can be
...an enum holding all possible days. Enums are particularly interesting for string columns with low cardinality (i.e., fewer distinct values). This is because... - https://man.mtool.work/duckdb/2.0/sql/data_types/enum.html
- Timestamp Functions 7922
- This section describes functions and operators for examining and manipulating TIMESTAMP values . See also the related TIMESTAMPTZ functions . Timestamp Operators The table below shows the available mathematical operators for TIMESTAMP types
...02:03' + INTERVAL 5 DAY 1992-03-27 01:02:03 - subtraction of TIMESTAMP s TIMESTAMP '1992-03-27' - TIMESTAMP '1992-03-22' 5 days - subtraction of an INTERVAL TIMESTAMP '1992-03-27 01:02:03' - INTERVAL 5 DAY 1992-03-22 01:02:03 Adding to or subtracting...een the two timestamps. | | Example | age(TIMESTAMP '2001-04-10', TIMESTAMP '1992-09-20') | | Result | 8 years 6 months 20 days | age(timestamp) | Description | Subtract from current_date. | | Example | age(TIMESTAMP '1992-09-20') | | Result | 29 yea...rs 1 month 27 days 12:39:00.844 | ago(interval) | Description | Subtracts an interval from the current timestamp, returning a timestamp in th... - https://man.mtool.work/duckdb/2.0/sql/functions/timestamp.html
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