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Time Functions 12795
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 ... _localtime() Current time (start of current transaction) in the local time zone, as a TIME value without a time zone. date_diff(part, starttime, endtime) The number of part boundaries between starttime and endtime , inclusive of the larger time and e ... zone. | | Example | current_localtime() | | Result | 06:09:59.988 | | Alias | localtime (no parentheses necessary) | date_diff(part, starttime, endtime) | Description | The number of part boundaries between starttime and endtime , inclusive of the l ... arger time and exclusive of the smaller time. | | Example | date_diff('hour', TIME '01:02:03', TIME '06:01:03') | | Result | 5 | | Alias | datediff | date_part(part, time) | Description | Get ...
https://man.mtool.work/duckdb/2.0/sql/functions/time.html
Date Functions 9542
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 ... h type promotion. Name Description date_add(date, interval) Add the interval to the date and return a DATETIME value. date_diff(part, startdate, enddate) The number of part boundaries between startdate and enddate , inclusive of the larger date and e ... turn a DATETIME value. | | Example | date_add(DATE '1992-09-15', INTERVAL 2 MONTH) | | Result | 1992-11-15 00:00:00 | date_diff(part, startdate, enddate) | Description | The number of part boundaries between startdate and enddate , inclusive of the l ... arger date and exclusive of the smaller date. | | Example | date_diff('month', DATE '1992-09-15', DATE '1992-11-14') | | Result | 2 | | Alias | datediff | date_part(part, date) | Description | ...
https://man.mtool.work/duckdb/2.0/sql/functions/date.html
JSON Processing Functions 9251
JSON Extraction Functions There are two extraction functions, which have their respective operators. The operators can only be used if the string is stored as the JSON logical type. These functions support the same two location notations as ... inal value instead of deleting the key. A SQL NULL patch returns NULL , while a SQL NULL json is ignored. json_merge_patch_diff(json_orig, json_modified) Return the minimal RFC 7396 merge patch such that json_merge_patch(json_orig, patch) equals json ... s appear as null , changed and added keys appear with their new values, and unchanged keys are omitted. Nested objects are diffed recursively. json_normalize(json) Return json in a canonical form by recursively sorting the keys of every object, inclu ... ements are kept and scalar values are returned unchanged. Compute the patch between two documents: SELECT json_merge_patch_diff('{"a": 1, "b": 2, "c": 3}', '{"a": 1, "b": 99, "d": 4}'); {"c":null,"b":99,"d":4} Applying the diff using json_merge_patch ...
https://man.mtool.work/duckdb/2.0/data/json/json_functions.html
Python Client API 8960
Connection class duckdb. Appender Bases: object append_row ( self , * args ) → None Buffer one row, one value per column, each converted as an executemany parameter would be append_rows ( self , rows : object ) → None Buffer each row of an ... string to a character string ( BLOB ). SQL: from_base64 . hamming ( * args : ValueOrExpr ) → Expression How many positions differ, for two strings of equal length. Arguments: s2. SQL: hamming . ilike_escape ( * args : ValueOrExpr ) → Expression Match ... ), 'dayofyear': ('dayofyear', 0, ['DATE']), 'days_in_month': ('days_in_month', 0, []), 'decade': ('decade', 0, ['DATE']), 'diff': ('date_diff', 1, ['VARCHAR', 'DATE', 'DATE']), 'epoch': ('epoch', 0, ['DATE']), 'epoch_ns': ('epoch_ns', 0, ['DATE']), ' ... _month . decade ( * args : ValueOrExpr ) → Expression Extract the decade component from a date or timestamp. SQL: decade . diff ( part : ValueOrExpr , * args : ValueOrExpr ) → Expression The number of partition boundaries between the timestamps. Argu ...
https://man.mtool.work/duckdb/2.0/clients/python/reference/
Timestamp Functions 8651
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 ... calar functions for TIMESTAMP values. Name Description age(timestamp, timestamp) Subtract arguments, resulting in the time difference between the two timestamps. age(timestamp) Subtract from current_date. ago(interval) Subtracts an interval from the ... the century of a timestamp. current_localtimestamp() Returns the current timestamp (at the start of the transaction). date_diff(part, starttimestamp, endtimestamp) The number of part boundaries between starttimestamp and endtimestamp , inclusive of t ... finite date, the result will be NULL . age(timestamp, timestamp) | Description | Subtract arguments, resulting in the time difference between the two timestamps. | | Example | age(TIMESTAMP '2001-04-10', TIMESTAMP '1992-09-20') | | Result | 8 years 6 ...
https://man.mtool.work/duckdb/2.0/sql/functions/timestamp.html
Timestamp with Time Zone Functions 8070
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 ... time zone: SELECT '2022-10-08 13:13:34 Europe/Amsterdam'::TIMESTAMPTZ::VARCHAR; 2022-10-08 04:13:34-07 -- the offset will differ based on your local time zone ICU Timestamp with Time Zone Operators The table below shows the available mathematical op ... TIMESTAMP WITH TIME ZONE values. Name Description age(timestamptz, timestamptz) Subtract arguments, resulting in the time difference between the two timestamps. age(timestamptz) Subtract from current_date. date_diff(part, starttimestamptz, endtimest ... Note that 2000-01-03 is a Monday. age(timestamptz, timestamptz) | Description | Subtract arguments, resulting in the time difference between the two timestamps. | | Example | age(TIMESTAMPTZ '2001-04-10', TIMESTAMPTZ '1992-09-20') | | Result | 8 yea ...
https://man.mtool.work/duckdb/2.0/sql/functions/timestamptz.html
Date Part Functions 6288
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 ...
https://man.mtool.work/duckdb/2.0/sql/functions/datepart.html
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