sql數(shù)據(jù)庫(kù)存在父級(jí)、子級(jí)聯(lián)用的遞歸，具體代碼如下：

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--sql 數(shù)據(jù)庫(kù)遞歸---在數(shù)據(jù)庫(kù)存在級(jí)聯(lián)用到，例如商品的父類(lèi)和子類(lèi)之間所屬關(guān)系

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WITH T AS ( SELECT

* ,

lv = 0 ,

struct = CAST(id AS NVARCHAR) --struct 獲取的數(shù)據(jù)包含它本身和它的上級(jí)節(jié)點(diǎn)

FROM

tb_accounttype

WHERE

pid = 0

UNION ALL

SELECT

a.* ,

lv = ( b.lv + 1 ) ,

struct = CAST(CAST(b.struct AS NVARCHAR) + ','

+ CAST(a.id AS NVARCHAR) AS NVARCHAR)

FROM

tb_accounttype a

JOIN T b ON a.pid = b.AccountTypeNo

)

SELECT

*

FROM T

-- 如果需要加入條件查詢(xún)例如查詢(xún)name等于你需要查詢(xún)的數(shù)據(jù)則加入一下代碼即可

-- where T.name LIKE '%00%'

OPTION

( MAXRECURSION 0 )

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