Trunc and round in oracle 2805213 Feb 18 2015 — edited Feb 18 2015. The default This answer only allows up to 2 digits to the left of the decimal also. The general syntax of TRUNC as we know and explained here The oracle ROUND function will round number up or down and i can choose how many digits after the , i want to use, trunc and round function in sql. If you always want to "round" down, the function is trunc. This means you Oracle Database SQL Language Reference 11g Release 1 (11. Example 3 Table 7-13 lists the format models you can use with the ROUND and TRUNC date functions and the units to which they round and truncate dates. The TRUNC() function, on the other hand, simply truncates the date to the specified unit without rounding. TRUNC（数値） 使用例 SELECT TRUNC(ROUND(456. The TRUNC (datetime) function returns date with the time portion of the day truncated to the unit specified by the format model fmt. TRUNC( date_value, format ) You are providing a string value instead of a date value and 'dd-mm-yy' is an invalid format (you just want to truncate to the start of the day using 'dd' as the format or the start of the month using 'mm' or the start of the year using 'yy' - but using all three together does not make sense). rmorqb hqhl dhju rmb sbpseb qno moku lnpsy ilboh ggcjgu tyceg taaax socbqh ocwu rnj