REPEAT - UNTIL Loop or Statement In Microsoft Dynamics NAV C/AL Definition REPEAT - UNTIL Loop is a repetative loop, is used for programmes having one or more statements to be executed until some condition. Syntax OF REPEAT - UNTIL Loop --------------------------------------------------- REPEAT Satements UNTIL Boolean Expression --------------------------------------------------- This works in a manner like that it will work the statements until the Boolean Expression is true. The difference Between WHILE-DO loop is that the REPEAT - UNTIL Loop will execute atleast one time and then only it will check the Boolean expression true or false. But in the case of WHILE-DO loop only execute the code when a particular condition is true. For Example: ======================================= REPEAT i :=  i + 1; Total Sales := Total Sales + Sales[i]; UNTIL Sales[i]=0; ======================================= The abow example works in a manner like that it will execute the statement once after tha...