date_exp can be a column name, a date or timestamp literal, or the result of another scalar function, where the underlying data type can be represented as SQL_CHAR, SQL_VARCHAR, SQL_DATE, or SQL_TIMESTAMP.time_exp can be a column name, a timestamp or timestamp literal, or the result of another scalar function, where the underlying data type can be represented as SQL_CHAR, SQL_VARCHAR, SQL_TIME, or SQL_TIMESTAMP.timestamp_exp can be a column name; a time, date, or timestamp literal; or the result of another scalar function, where the underlying data type can be represented as SQL_CHAR, SQL_VARCHAR, SQL_TIME, SQL_DATE, or SQL_TIMESTAMP.Function | Returns |
CURRENT_DATE() [ODBC 3.0 only] | Current date. |
CURRENT_TIME[(time-precision)] [ODBC 3.0 only] | Current local time. The time-precision argument determines the seconds precision of the returned value. |
CURRENT_TIMESTAMP[(timestamp-precision)] [ODBC 3.0 only] | Current local date and local time as a timestamp value. The timestamp-precision argument determines the seconds precision of the returned timestamp. |
CURDATE() | Current date as a date value. |
CURTIME() | Current local time as a time value. |
DAYNAME(date_exp) | Character string containing a data-source-specific name of the day for the day portion of date_exp. |
DAYOFMONTH(date_exp) | Day of the month in date_exp as an integer value (1–31). |
DAYOFWEEK(date_exp) | Day of the week in date_exp as an integer value (1–7). |
DAYOFYEAR(date_exp) | Day of the year in date_exp as an integer value (1–366). |
EXTRACT({YEAR | MONTH | DAY | HOUR | MINUTE | SECOND} FROM datetime_value) | Any of the date and time terms can be extracted from datetime_value. |
HOUR(time_exp) | Hour in time_exp as an integer value (0–23). |
MINUTE(time_exp) | Minute in time_exp as an integer value (0–59). |
MONTH(date_exp) | Month in date_exp as an integer value (1–12). |
MONTHNAME(date_exp) | Character string containing the data source-specific name of the month. |
NOW() | Current date and time as a timestamp value. |
QUARTER(date_exp) | Quarter in date_exp as an integer value (1–4). |
SECOND(time_exp) | Second in date_exp as an integer value (0–59). |
TIMESTAMPADD(interval, integer_exp, time_exp) | Timestamp calculated by adding integer_exp intervals of type interval to time_exp. interval can be one of the following values: SQL_TSI_FRAC_SECOND SQL_TSI_SECOND SQL_TSI_MINUTE SQL_TSI_HOUR SQL_TSI_DAY SQL_TSI_WEEK SQL_TSI_MONTH SQL_TSI_QUARTER SQL_TSI_YEAR Fractional seconds are expressed in billionths of a second. |
TIMESTAMPDIFF(interval, time_exp1, time_exp2) | Integer number of intervals of type interval by which time_exp2 is greater than time_exp1. interval has the same values as TIMESTAMPADD. Fractional seconds are expressed in billionths of a second. |
WEEK(date_exp) | Week of the year in date_exp as an integer value (1–53). |
YEAR(date_exp) | Year in date_exp. The range is data-source dependent. |