如何将 table 转换为每个字段都在新行上的平面文件

Question

我有一个竖线分隔的文件，其中包含以下格式的用户和地址信息：

userid|name|street|city|state|zip
123456|fred|123 apple st|Navada|MO|64772

我将信息输出到另一个平面文件，格式如下：

*** DOCUMENT BOUNDARY ***
FORM=LDUSER
.USER_ID.   123456
.USER_ADDR1_BEGIN.
.STREET.   123 apple st
.CITY.   Nevada
.STATE.   MO
.ZIP.   64772
.USER_ADDR1_END.

是否有通用的 SQL 或 PowerShell 脚本可以进行此类转换？我搜索了 "convert columns to rows"、"pivot table to flat file" 等短语，但没有找到任何有用的信息。我不确定如何调用输出文件的格式，dot/row 分隔？分层平面文件？

Answer 1

据我所知，在 SQL 服务器中没有实现此目的的通用方法，但如果您设法将数据获取到 table，则以下自定义查询将帮助您呈现数据作为单列，您可以在之后导出

CREATE TABLE #temp (UserID INT, Name VARCHAR(40), Street VARCHAR(40), City VARCHAR(40), State VARCHAR(40), Zip INT)

INSERT INTO #temp VALUES
(101,'Kevin Joy','Ap #659-7998 Integer St.','Hinckley','4863 Ligula. Av.',98417),
(102,'Peter Romell','979-4806 Massa Road','Knoxville','4568 A Street',90825),
(103,'Mariam Sid','P.O. Box 547, 8395 Ultrices Av.','Beervelde','Ap #758-6207 Non, Av.',486291),
(104,'Roberta Kotun','9482 Habitant Ave','Northumberland','Ap #620-957 Rutrum Av.',476177)

;WITH CTE AS (

SELECT 
    CAST(UserID AS VARCHAR(MAX)) AS UserID
    ,Name
    ,Street
    ,City
    ,[State]
    ,CAST(Zip AS VARCHAR(MAX)) AS Zip
FROM #temp )

SELECT '*** DOCUMENT BOUNDARY ***' AS [Data]
UNION ALL
SELECT 'FORM=LDUSER'
UNION ALL
SELECT T.Result
FROM CTE
CROSS APPLY (VALUES ('.USER_ID.'+' '+UserID,'Col1'),('.USER_ADDR1_BEGIN.','Col2'),('.STREET.'+' '+Street,'Col3'),('.CITY.'+' '+City,'Col4'),('.STATE.'+' '+[State],'Col5'),('.ZIP.'+' '+Zip,'Col6'),('.USER_ADDR1_END.','Col7')) AS T(Result,Value)

查询结果如下，

*** DOCUMENT BOUNDARY ***
FORM=LDUSER
.USER_ID. 101
.USER_ADDR1_BEGIN.
.STREET. Ap #659-7998 Integer St.
.CITY. Hinckley
.STATE. 4863 Ligula. Av.
.ZIP. 98417
.USER_ADDR1_END.
.USER_ID. 102
.USER_ADDR1_BEGIN.
.STREET. 979-4806 Massa Road
.CITY. Knoxville
.STATE. 4568 A Street
.ZIP. 90825
.USER_ADDR1_END.
.USER_ID. 103
.USER_ADDR1_BEGIN.
.STREET. P.O. Box 547, 8395 Ultrices Av.
.CITY. Beervelde
.STATE. Ap #758-6207 Non, Av.
.ZIP. 486291
.USER_ADDR1_END.
.USER_ID. 104
.USER_ADDR1_BEGIN.
.STREET. 9482 Habitant Ave
.CITY. Northumberland
.STATE. Ap #620-957 Rutrum Av.
.ZIP. 476177
.USER_ADDR1_END.

如何将 table 转换为每个字段都在新行上的平面文件

How to convert table to flat file with each field on new row

sql-server

powershell

flat-file