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A do while loop executes when a condition is true.
Ex.
do while 1 = 1
loop
this would execute forever
a do until executes until the condition is met.
Ex.
do until 1 = 1
loop
This would NOT execute. The program would see that 1 is in fact equal to 1 and does not perform the loop
Note: "1=1" can be any conditional expression, not limited to what is shown

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15y ago

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