基于SQL语句的断码查询

假设表名叫record,而且有一个字段名为NO,数据类型必须是整数或是字符串。web SELECT *, (endNO-startNO) AS diff FROM ( SELECT startNO, (SELECT MIN(NO)-1 FROM record WHERE NO>startNO) AS endNO FROM ( SELECT NO+1 AS startNO FROM record W
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