sqlserver如何生成连续数值,字母,字符
作者：huryer
这篇文章主要介绍了sqlserver如何生成连续数值,字母,字符问题，具有很好的参考价值，希望对大家有所帮助。如有错误或未考虑完全的地方，望不吝赐教
sqlserver生成连续数值,字母,字符
-- 生成连续数值(0-9)
WITH x AS
(SELECT 0 AS id UNION ALL
SELECT id + 1 AS id
FROM x
WHERE id < 9)
SELECT *
FROM x;
-- 生成连续字母(a-z)
WITH x AS
(SELECT 1 AS id UNION ALL
SELECT id + 1 AS id
FROM x
WHERE id < 26)
SELECT CHAR(id+96) AS id
FROM x;
-- 生成连续字符(0-9,a-z)
WITH x AS
(SELECT 0 AS id,CHAR(ascii('0')) AS cc UNION ALL
SELECT id + 1 AS id,CASE WHEN id<9 THEN CHAR(ascii('1')+id) ELSE CHAR(ascii('a')+id-9) END AS cc
FROM x
WHERE id < 35)
SELECT id, cc
FROM x;sqlserver 生成连续日期
在sqlserver里，可以利用系统表master..spt_values里面存储的连续数字0到2047，结合dateadd（）函数生成连续的日期。
SELECT
CONVERT (VARCHAR (10),dateadd(d, number, GETDATE()),23) AS rq
FROM
master..spt_values
WHERE
type = 'p'
AND number between 1 and 365
总结
以上为个人经验，希望能给大家一个参考，也希望大家多多支持脚本之家。