首先要把缺的号查出来,给你个列子,具体的自己写吧--测试数据
CREATE TABLE tb(col1 varchar(10),col2 int)
INSERT tb SELECT 'a',2
UNION ALL SELECT 'a',3
UNION ALL SELECT 'a',6
UNION ALL SELECT 'a',7
UNION ALL SELECT 'a',8
UNION ALL SELECT 'b',1
UNION ALL SELECT 'b',5
UNION ALL SELECT 'b',6
UNION ALL SELECT 'b',7
GO--缺号分布查询
SELECT a.col1,start_col2=a.col2+1,
end_col2=(
SELECT MIN(col2) FROM tb aa
WHERE col1=a.col1 AND col2>a.col2
AND NOT EXISTS(
SELECT * FROM tb WHERE col1=aa.col1 AND col2=aa.col2-1))
-1
FROM(
SELECT col1,col2 FROM tb
UNION ALL --为每组编号补充查询起始编号是否缺号的辅助记录
SELECT DISTINCT col1,0 FROM tb
)a,(SELECT col1,col2=MAX(col2) FROM tb GROUP BY col1)b
WHERE a.col1=b.col1 AND a.col2<b.col2 --过滤掉每组数据中,编号最大的记录
AND NOT EXISTS(
SELECT * FROM tb WHERE col1=a.col1 AND col2=a.col2+1)
ORDER BY a.col1,start_col2
/*--结果
col1 start_col2 end_col2
-------------- -------------- -----------
a 1 1
a 4 5
b 2 4
CREATE TABLE tb(col1 varchar(10),col2 int)
INSERT tb SELECT 'a',2
UNION ALL SELECT 'a',3
UNION ALL SELECT 'a',6
UNION ALL SELECT 'a',7
UNION ALL SELECT 'a',8
UNION ALL SELECT 'b',1
UNION ALL SELECT 'b',5
UNION ALL SELECT 'b',6
UNION ALL SELECT 'b',7
GO--缺号分布查询
SELECT a.col1,start_col2=a.col2+1,
end_col2=(
SELECT MIN(col2) FROM tb aa
WHERE col1=a.col1 AND col2>a.col2
AND NOT EXISTS(
SELECT * FROM tb WHERE col1=aa.col1 AND col2=aa.col2-1))
-1
FROM(
SELECT col1,col2 FROM tb
UNION ALL --为每组编号补充查询起始编号是否缺号的辅助记录
SELECT DISTINCT col1,0 FROM tb
)a,(SELECT col1,col2=MAX(col2) FROM tb GROUP BY col1)b
WHERE a.col1=b.col1 AND a.col2<b.col2 --过滤掉每组数据中,编号最大的记录
AND NOT EXISTS(
SELECT * FROM tb WHERE col1=a.col1 AND col2=a.col2+1)
ORDER BY a.col1,start_col2
/*--结果
col1 start_col2 end_col2
-------------- -------------- -----------
a 1 1
a 4 5
b 2 4
select a.rn from
(SELECT ROW_NUMBER() over (order by id) rn FROM SysObjects) a
where rn between (select MIN(id) from KKK) and (select MAX(id) from KKK)
and rn not in (select ID from KKK)