SELECT CONCAT_WS(' ',NAME, SURNAME, 'was born in', DATE_FORMAT(BIRTHDAY,'%Y')) AS RESULT
FROM STUDENT
WHERE KURS == 1 OR KURS == 2;
我只需要KURS列包含“ 1”或“ 2”的那些行
SELECTS * FROM STUDENTS
>>
SELECT CONCAT_WS('',NAME,SURNAME,'born in',DATE_FORMAT(BIRTHDAY,'%Y'))作为学生的KURS == 1或KURS == 2;我只需要其中KURS列包含“ 1”或“ 2”的行...
MySQL中没有==
运算符。据推测,您的意思是: