新手求解。。
例如我现在有一个列
fNumber
DN
DN.TS
DN.BJB
DN.TS.ZJ
DN.TS.ZJ.ZB
这样子

然后我想新建一个列 fLevel
变成
fNumber fLevel
DN 1
DN.TS 2
DN.BJB 2
DN.TS.ZJ 3
DN.TS.ZJ.ZB 4

可以理解为根据.来判断
所以我想请教下
要怎么写 才可以自动生成？谢谢了
在线等

[最优解释]

IF OBJECT_ID('tempdb.dbo.#Ta') IS NOT NULL 
DROP TABLE #Ta
 
CREATE TABLE #Ta(fNumber varchar(16))
 
INSERT INTO #Ta(fNumber)
SELECT  'DN'  UNION ALL 
SELECT  'DN.TS' UNION ALL 
SELECT  'DN.BJB' UNION ALL 
SELECT  'DN.TS.ZJ' UNION ALL 
SELECT  'DN.TS.ZJ.ZB'

select *,(select COUNT(*)+1 from master..spt_values 
WHERE  type='P' 
and SUBSTRING(fNumber,number,1)='.')
from #ta a

[其他解释]

IF OBJECT_ID('tempdb.dbo.#Ta') IS NOT NULL 
DROP TABLE #Ta
 
CREATE TABLE #Ta(fNumber varchar(16))
 
INSERT INTO #Ta(fNumber)
SELECT  'DN'  UNION ALL 
SELECT  'DN.TS' UNION ALL 
SELECT  'DN.BJB' UNION ALL 
SELECT  'DN.TS.ZJ' UNION ALL 
SELECT  'DN.TS.ZJ.ZB'

select *,(select COUNT(*)+1 from master..spt_values 
WHERE  type='P' and LEN(a.fNumber)>=number 
and SUBSTRING(fNumber,number,1)='.')
from #ta a

[其他解释]

引用:

SQL code?1234567891011121314151617181920212223242526272829IF OBJECT_ID('tempdb.dbo.#Ta') IS NOT NULL DROP TABLE #Ta CREATE TABLE #Ta(fNumber varchar(16)) INSERT INTO #Ta(fNumber)SELECT '……

那如果不是更新表
而是新建一个表
然后根据id循环 增加fNumer 然后在每次循环中检测fNumber的值 自动添加fLevel
请问 怎么做？
[其他解释]

IF OBJECT_ID('tempdb.dbo.#Ta') IS NOT NULL 
DROP TABLE #Ta

CREATE TABLE #Ta(fNumber varchar(16))

INSERT INTO #Ta(fNumber)
SELECT  'DN'  UNION ALL 
SELECT  'DN.TS' UNION ALL 
SELECT  'DN.BJB' UNION ALL 
SELECT  'DN.TS.ZJ' UNION ALL 
SELECT  'DN.TS.ZJ.ZB'

ALTER TABLE #Ta ADD fLevel int 

UPDATE #Ta
SET fLevel = LEN(fNumber) - LEN(REPLACE(fNumber,'.','')) + 1 
 

SELECT * FROM #Ta

fNumber          fLevel
---------------- -----------
DN               1
DN.TS            2
DN.BJB           2
DN.TS.ZJ         3
DN.TS.ZJ.ZB      4

(5 行受影响)

[其他解释]

引用:

SQL code?12345678910111213141516IF OBJECT_ID('tempdb.dbo.#Ta') IS NOT NULL DROP TABLE #Ta CREATE TABLE #Ta(fNumber varchar(16)) INSERT INTO #Ta(fNumber)SELECT 'DN' UNION ALL SELECT '……

那如果不是更新表
而是新建一个表
然后根据id循环 增加fNumer 然后在每次循环中检测fNumber的值 自动添加fLevel
请问 怎么做？
[其他解释]
新手，求教导
[其他解释]

 SELECT *,len(fnumber)-len(replace(fnumber,'.',''))+1  as  flevel FROM #ta

[其他解释]
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[其他解释]
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