Oracle / PLSQL: ROUND Function (with dates)
This Oracle tutorial explains how to use the Oracle/PLSQL ROUND function (as it applies to date values) with syntax and examples.
Description
The Oracle/PLSQL ROUND function returns a date rounded to a specific unit of measure.
ROUND Function Syntax (with dates)
The syntax for the ROUND function in Oracle/PLSQL is:
ROUND( date [, format] )
Parameters or Arguments
- date
- The date to round.
- format
Optional. The unit of measure to apply for rounding. If the format parameter is omitted, the ROUND function will round to the nearest day. It can be can one of the following values:
Unit Valid format parameters Rounding Rule Year SYYYY, YYYY, YEAR, SYEAR, YYY, YY, Y Rounds up on July 1st ISO Year IYYY, IY, I Quarter Q Rounds up on the 16th day of the second month of the quarter Month MONTH, MON, MM, RM Rounds up on the 16th day of the month Week WW Same day of the week as the first day of the year IW IW Same day of the week as the first day of the ISO year W W Same day of the week as the first day of the month Day DDD, DD, J Start day of the week DAY, DY, D Hour HH, HH12, HH24 Minute MI
Returns
The ROUND function (as it applies to dates) returns a date value.
Applies To
The ROUND function can be used in the following versions of Oracle/PLSQL:
- Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i, Oracle 8i
Example - with dates
Let's look at some Oracle ROUND function examples and explore how to use the ROUND function in Oracle/PLSQL.
For example:
ROUND(TO_DATE ('22-AUG-03'),'YEAR') Result: '01-JAN-04' ROUND(TO_DATE ('22-AUG-03'),'Q') Result: '01-OCT-03' ROUND(TO_DATE ('22-AUG-03'),'MONTH') Result: '01-SEP-03' ROUND(TO_DATE ('22-AUG-03'),'DDD') Result: '22-AUG-03' ROUND(TO_DATE ('22-AUG-03'),'DAY') Result: '24-AUG-03'
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