WITH
a AS (SELECT 1 + 2 S FROM DUAL),
b AS (SELECT 2 * 5 M FROM DUAL),
c AS (SELECT S, M, S + M, S * M FROM a, b)
SELECT * FROM c;
输出结果是：
a AS (SELECT 1 + 2 S FROM DUAL),
b AS (SELECT 2 * 5 M FROM DUAL),
c AS (SELECT S, M, S + M, S * M FROM a, b)
SELECT * FROM c;
输出结果是：
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/31098809/viewspace-2124724/ ，如需转载，请注明出处，否则将追究法律责任。
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