Rounding function in "Go" SQL Floor, ROUND, Ceil, TRUNC, sign

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1 trunc (value,precision) intercepts a number by precision (precision) and does not perform rounding operations.
2 round (value,precision) Enter a value based on the given precision (precision).
3 Ceil (value) produces the smallest integer greater than or equal to the specified value (value).
4 floor (value), in contrast to Ceil (), produces the smallest integer less than or equal to the specified value (value).
5 sign (value) is opposite to the absolute value function abs (). ABS () gives the amount of the value rather than its symbol, and sign (value) gives the value a symbol rather than a quantity.
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1, returns the largest integer greater than or equal to x:
Select Ceil (23.33) from dual;

Ceil (23.33)
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24

2, returns the largest integer equal to or less than x:
Select Floor (23.33) from dual;

Floor (23.33)
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23

3, returns the x value of the Y-bit rounded to the right of the decimal point: Rcund (X,[y])
Select Round (23.53,2) from dual;

ROUND (23.33)
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23

4, return truncated to Y decimal place x Value: Trunc (X,[y])
Select Trunc (23.33123123) from dual;

TRUNC (23.33)
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23

5, returns the symbol of X
Select sign ( -23.33) from dual;

Sign (-23.33)
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-1

Rounding function in "Go" SQL Floor, ROUND, Ceil, TRUNC, sign