round.txt

orale培训教材包括了所有的sql说明和实例

SELECT product_name, product_price
FROM   plsql101_product;

SELECT product_name, ROUND(product_price, 0)
FROM   plsql101_product;

SELECT ROUND(1234.5678, 4) FROM DUAL;
SELECT ROUND(1234.5678, 3) FROM DUAL;
SELECT ROUND(1234.5678, 2) FROM DUAL;
SELECT ROUND(1234.5678, 1) FROM DUAL;
SELECT ROUND(1234.5678, 0) FROM DUAL;
SELECT ROUND(1234.5678, -1) FROM DUAL;
SELECT ROUND(1234.5678, -2) FROM DUAL;
SELECT ROUND(1234.5678, -3) FROM DUAL;