A、仅select
B、select, from
C、select, group
D、select,where
⑴ A、SELECT,INTO B、SELECT,FROM C、SELECT,GROUP D、仅SELECT
⑵ A、DISTINCT B、UNION C、ALL D、TOP
⑶ A、JOIN B、UNION C、INTO D、LIKE
⑷ A、GROUP BY B、COMPUTE BY
C、HAVING D、COMPUTE
A、select (name) from table person: 所有记录的name字段的值
B、select (name) from person where age=12 or name=’aa‘; or 或者
C、select (name) from table person where age=12; 查找age=12的记录的那个字段的值
D、select (name,age) from person where age=12 and name=‘aa’; and 并且
A、SELECT * FROM '学生表’WHERE 性别='男’
B、SELECT * FROM '学生表’WHERE 性别=男
C、SELECT * FROM 学生表 WHERE 性别=男
D、SELECT * FROM 学生表 WHERE 性别=‘男‘
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