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DateTimeBin (NoSQL query)

  • บทความ

APPLIES TO: NoSQL

Returns a date and time string value that is the result of binning (or rounding) a part of the provided date and time string.

Syntax

DateTimeBin(<date_time> , <date_time_part> [, <bin_size>] [, <bin_start_date_time>])

Arguments

Description
date_time A Coordinated Universal Time (UTC) date and time string in the ISO 8601 format YYYY-MM-DDThh:mm:ss.fffffffZ.
date_time_part A string representing a part of an ISO 8601 date format specification. This part is used to indicate which aspect of the date to bin. Specifically, this part argument represents the level of granularity for binning (or rounding). The minimum granularity for the part is days and the maximum granularity is nanoseconds.
bin_size (Optional) An optional numeric value specifying the size of the bin. If not specified, the default value is 1.
bin_start_date_time (Optional) An optional Coordinated Universal Time (UTC) date and time string in the ISO 8601 format YYYY-MM-DDThh:mm:ss.fffffffZ. This date and time argument specifies the start date to bin from. If not specified, the default value is the Unix epoch 1970-01-01T00:00:00.000000Z.

Note

For more information on the ISO 8601 format, see ISO 8601. For more information on the Unix epoch, see Unix time.

Return types

Returns a UTC date and time string in the ISO 8601 format YYYY-MM-DDThh:mm:ss.fffffffZ.

Examples

The following example bins the date January 8, 2021 at 18:35 UTC by various values. The example also changes the bin size, and the bin start date and time.

SELECT VALUE {
    binDay: DateTimeBin("2021-01-08T18:35:00.0000000", "dd"),
    binHour: DateTimeBin("2021-01-08T18:35:00.0000000", "hh"),
    binSecond: DateTimeBin("2021-01-08T18:35:00.0000000", "ss"),
    binFiveHours: DateTimeBin("2021-01-08T18:35:00.0000000", "hh", 5),
    binSevenDaysUnixEpoch: DateTimeBin("2021-01-08T18:35:00.0000000", "dd", 7),
    binSevenDaysWindowsEpoch: DateTimeBin("2021-01-08T18:35:00.0000000", "dd", 7, "1601-01-01T00:00:00.0000000")
}

[
  {
    "binDay": "2021-01-08T00:00:00.0000000Z",
    "binHour": "2021-01-08T18:00:00.0000000Z",
    "binSecond": "2021-01-08T18:35:00.0000000Z",
    "binFiveHours": "2021-01-08T15:00:00.0000000Z",
    "binSevenDaysUnixEpoch": "2021-01-07T00:00:00.0000000Z",
    "binSevenDaysWindowsEpoch": "2021-01-04T00:00:00.0000000Z"
  }
]

Remarks

  • This function returns undefined for these reasons:
    • The specified date and time part is invalid.
    • The bin size value isn't a valid integer, is zero, or is negative.
    • The date and time in either argument isn't a valid ISO 8601 date and time string.
    • The date and time for the bin start precedes the year 1601, the Windows epoch.
  • The ISO 8601 date format specifies valid date and time parts to use with this function: | | Format | | --- | --- | | Day | day, dd, d | | Hour | hour, hh | | Minute | minute, mi, n | | Second | second, ss, s | | Millisecond | millisecond, ms | | Microsecond | microsecond, mcs | | Nanosecond | nanosecond, ns |

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