How to operate Oracle rounding

Oracle rounding operation can be implemented using the ROUND function, whose syntax is "ROUND(number, decimal_places)", where number is the value to be rounded, and decimal_places is the specified number of decimal places. If you want to round up or down, the CEIL function can round a value up to the nearest integer, and the FLOOR function can round a value down to the nearest integer.

The rounding operation in Oracle database can be implemented using the ROUND function. The ROUND function rounds a number to a specified number of decimal places.

The syntax of the ROUND function is as follows:

ROUND(number, decimal_places)

Among them, number is the value to be rounded, and decimal_places is the specified number of decimal places.

Here are some example usages:

1. Round the value to an integer:

SELECT ROUND(3.8) FROM dual; -- 结果为4
SELECT ROUND(3.2) FROM dual; -- 结果为3

2. Round the value to one decimal place:

SELECT ROUND(3.857, 1) FROM dual; -- 结果为3.9
SELECT ROUND(3.142, 1) FROM dual; -- 结果为3.1

3 . Keep the value to two decimal places:

SELECT ROUND(3.857, 2) FROM dual; -- 结果为3.86
SELECT ROUND(3.142, 2) FROM dual; -- 结果为3.14

It should be noted that if you want to round up or down, you can use the CEIL function and the FLOOR function.

The CEIL function can round a value up to the nearest integer, while the FLOOR function can round a value down to the nearest integer.

Here are some example usages:

1. Round up:

SELECT CEIL(3.2) FROM dual; -- 结果为4
SELECT CEIL(3.8) FROM dual; -- 结果为4

2. Round down:

SELECT FLOOR(3.2) FROM dual; -- 结果为3
SELECT FLOOR(3.8) FROM dual; -- 结果为3

In summary, The rounding operation in Oracle database can be implemented using the ROUND function, and the CEIL function and FLOOR function can also be used to perform upward and downward rounding operations. Choose the appropriate function as needed to complete numerical processing.

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