我如何将 table 数据（多行）输出为多行连接字符串

Question

我正在尝试使用 2 tables 和一组依据...获取从 select 语句构建的 table 数据，然后将每一行数据输出到单个行连接文本。

我尝试尝试声明、设置和打印为连接字符串。

use ap;

SELECT v.vendorid as 'VendorID', count(i.invoiceid) as 'Invoice Count', 
sum(i.invoicetotal) as 'Invoice Total' 
FROM vendors v
JOIN invoices i on i.vendorid = v.vendorid
GROUP BY v.vendorid

尝试输出它...

VendorID = 34 发票计数 2 发票总计 = 1,200.12

Answer 1

只需将其连接成一个字符串即可。您只需将数值转换为 VARCHAR。

select 'VendorID = ' + CAST(v.vendorid AS VARCHAR(10)) + ' Count ' + CAST(count(i.invoiceid) AS VARCHAR(10)) +
    ' Invoice Totals = ' + FORMAT(sum(i.invoicetotal), 'c2')
from vendors v JOIN invoices i on i.vendorid = v.vendorid 
group by v.vendorid

使用此示例数据：

create table vendors (vendorid int)
create table invoices (vendorid int, invoiceid int, invoicetotal money)

insert into vendors values (34)
insert into invoices values (34, 1, 1000), (34, 2, 200.12)

Returns:

VendorID = 34 Count 2 Invoice Totals = ,200.12

我如何将 table 数据（多行）输出为多行连接字符串

How can i output table data (multiple rows) as a multiple rows of concatenated strings

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ssms

concatenation