日期与时间 避免使用 DateTime ，除非你确实需要处理历法改革（儒略/格里历的改革），此时通过设置 start 参数来明确你的意图。[link ] # 差 - 使用 DateTime 表示当前时间 DateTime . now # 好 - 使用 Time 表示当前时间 Time . now # 差 - 使用 Date...

AVG Description Syntax example keywords AVG Description Syntax AVG([DISTINCT] expr) Used to return the average value of the selected field Optional field DISTINCT param...

时间日期函数 toTimeZone toYear toQuarter toMonth 今天一年 今天月 今天一周 toHour toMinute 秒 toUnixTimestamp 开始一年 今年开始 四分之一开始 到月份开始 toMonday 今天开始 开始一小时 to startofminute to startof...

Dates Constructors Durations/Comparisons Accessor Functions Query Functions TimeType-Period Arithmetic Adjuster Functions Period Types Rounding Rounding Epoch API referen...

Dates 构造函数 Durations/Comparisons 访问函数 查询函数 TimeType-Period Arithmetic Adjuster Functions Period Types Rounding Rounding Epoch API reference Dates and Time Types Dates Fu...

Dates Constructors Durations/Comparisons Accessor Functions Query Functions TimeType-Period Arithmetic Adjuster Functions Period Types Rounding Rounding Epoch API referen...

Data types Date and time types Date Time Datetime Timestamp Interval Convert between date and time types Data types The following table shows the data types supported by ...

Data types Date and time types Date Time Datetime Timestamp Interval Convert between date and time types Data types The following table shows the data types supported by ...

Data types Date and time types Date Time Datetime Timestamp Interval Convert between date and time types Data types The following table shows the data types supported by ...

Data types Date and time types Date Time Datetime Timestamp Interval Convert between date and time types Data types The following table shows the data types supported by ...