1 --范围查询(区间查询) 2 --in() 3 --查询年龄为18,28,38的人 select *from student where age=18 or age=28 or age=38; 4 select *from student where age in(18,28,38); 5 --not in 6 --查询年龄为18,28,38的人 select *from student where not (age=18 or age=28 or age=38); 7 select *from student where age not in (18,28,38); 8 --between...and... 9 --查询12-18的人 10 select *from student where age between 12 and 18; 11 -- not between...and... 12 -- 查询年龄不在12-18的人 13 select *from student where age not between 12 and 18; 14 -- 失败select *from student where age not (between 12 and 18); 15 16 17 --判断空 18 -- is null 19 -- 判断年龄是否为空 20 select *from student where age is null; 21 -- is not NULL 22 -- 判断年龄不为空 23 select *from student where age is not null;
sql查询——范围查询(区间查询)
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转载自www.cnblogs.com/jum-bolg/p/11235427.html
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