The following date-manipulation functions are in the ESQL/C library. They convert dates between a string format and the internal DATE format.
Function Name | Description |
---|---|
rdatestr( ) | Converts an internal DATE to a character string format |
rdayofweek( ) | Returns the day of the week of a date in internal format |
rdefmtdate( ) | Converts a specified string format to an internal DATE |
rfmtdate( ) | Converts an internal DATE to a specified string format |
rjulmdy( ) | Returns month, day, and year from a specified DATE |
rleapyear( ) | Determines whether the specified year is a leap year |
rmdyjul( ) | Returns an internal DATE from month, day, and year |
rstrdate( ) | Converts a character string format to an internal DATE |
rtoday( ) | Returns a system date as an internal DATE |
For more information about the individual functions, see the following: IBM Informix ESQL/C Programmer's Manual.