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SELECT*FROM s
WHERE 性别=′女′AND年龄<=18
ORDER BY 4
DESC INTO TABLE WS SELECT * FROM S
WHERE性别=′女′AND年龄<=18
ORDER BY年龄
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WHERE性别=′女′AND年龄<=18
ORDER BY ′年龄′
DESC INTO TABLE WS SELECT * FROM S
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SELECT* FROM S WHERE 性别='女' AND 年龄<=18 ORDER BY 4 DESC INTO TABLE WS SELECT* FROM S WHERE 性别='女' AND 年龄<=18 ORDER BY 年龄 INTO TABLE WS SELECT* FROM S WHERE 性别='女' AND 年龄<=18 ORDER BY '年龄' DESC INTO TABLE WS SELECT* FROM S WHERE 性别='女' OR 年龄<=18 ORDER BY '年龄' ASC INTO TABLE WS
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SELECT姓名性别,年龄FROM学生WHERE年龄<22 SELECT姓名,性别,YEAR(DATE())-YEAR(出生日期)as年龄FROM学生 WHERE YEAR(出生日期)<22 SELECT姓名,性别,YEAR(DATE())-YEAR(出生日期)as年龄FROM学生 WHERE;YEAR(DATE()).YEAR(出生日期)<22 SELECT姓名,性别,年龄=YEAR(DATE())-YEAR(出生日期)FROM学生 WHERE YEAR(DATE())-YEAR(出生日期)<22
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WHERE 性别='女' AND 年龄<=18 ORDER BY '年龄' DESC INTO TABLE WS SELECT* FROM S
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CREATE TABLE 学生 (学号C(6) PRIMARY,姓名C(8),性别C(2),年龄I) CREATE TABLE 学生 (学号C(6) FOREIGN,姓名C(8),性别C(2),年龄I) CREATE TABLE 学生 (学号C(6) FOREIGN KEY,姓名C(8),性别C(2),年龄I) CREATE TABLE 学生 (学号C(6) PRIMARY KEY,姓名C(8),性别C(2),年龄I)
“课号”,“成绩” “学号”,“成绩” “学号”,“课号” “学号”,“姓名”,“成绩”
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