Installing date strings for unsupported languages

Use sp_addlanguage to install names for the days of the week and months of the year for languages that do not have language modules. With sp_addlanguage, lets you define:

For example to add the information for Italian:

sp_addlanguage italian, italiano,
"gennaio,febbraio,marzo,aprile,maggio,giugno,luglio,agosto,settembre,ottobre,
novembre,dicembre",
"genn,feb,mar,apr,mag,giu,lug,ago,sett,ott,nov,dic",
"lunedi,martedi,mercoledi,giovedi,venerdi,sabato,domenica",
dmy, 1

sp_addlanguage enforces strict data entry rules. The lists of month names, month abbreviations, and days of the week must be comma-separated lists with no spaces or line feeds (returns). Also, they must contain the correct number of elements (12 for month strings, 7 for day-of-the-week strings.)

Valid values for the date formats are: mdy, dmy, ymd, ydm, myd, and dym. The dmy value indicates that the dates are in day/month/year order. This format affects only data entry; to change output format, you must use the convert function.