SELECT STUDENT_NAME, (CASE WHEN score < 60 THEN '不及格' WHEN score >= 60 AND score < 80 THEN '及格' WHEN score >= 80 THEN '优秀' ELSE '异常' END) AS REMARKFROM ...
Many nights we prayWith no proof anyone could hearAnd our hearts a hopeful songWe barely understandNow we are not afraidAlthough we know there’s much to fearWe were moving mountains longBefore we kno...
```
select
CASE 'R'
WHEN 'Y' THEN '等于Y'
WHEN 'N' THEN '等于N'
ELSE '不等于Y与N'
END
select
CASE
WHEN name > 'A' THEN 'A'
WHEN name < 'B' THEN 'B'
WHEN name = 'C' THEN 'C'
ELSE...
```
select
CASE 'R'
WHEN 'Y' THEN '等于Y'
WHEN 'N' THEN '等于N'
ELSE '不等于Y与N'
END
select
CASE
WHEN name > 'A' THEN 'A'
WHEN name < 'B' THEN 'B'
WHEN name = 'C' THEN 'C'
ELSE...
I read an article named "Going to the doctor" today. it said Americans only see the doctor when something is seriously wrong, because a doctor visit can cost more than 80 dollars, and health insurance...
Many nights we pray
With no proof anyone could hear
And our hearts a hopeful song
We barely understand
Now we are not afraid
Although we know there’s much to fear
We were moving mountains long
Befor...
CASE 语句CASE selector WHEN value1 THEN action1; WHEN value2 THEN action2; WHEN value3 THEN action3; ….. ELSE actionN;END CASE;CASE表达式DECLARE temp VARCHAR2(10); v_num...
