这是我的 SQL 查询
DECLARE @Amount int
SELECT @Amount = COALESCE(@Amount+ ', ', '') + Amount FROM Hotel
在执行此查询时,我收到错误:
"Conversion failed when converting the varchar value ', ' to data type int"
这是我的 SQL 查询
DECLARE @Amount int
SELECT @Amount = COALESCE(@Amount+ ', ', '') + Amount FROM Hotel
在执行此查询时,我收到错误:
"Conversion failed when converting the varchar value ', ' to data type int"
您需要将数字显式转换为字符串,否则它将尝试从字符串隐式转换为数字。
还要将变量声明为正确的数据类型...
DECLARE @Amount varchar(max)
SELECT @Amount = COALESCE(@Amount+ ', ', '') + CAST(Amount AS VARCHAR(11))
FROM Hotel
你可能还想看看XML PATH
这个,就像你在 2008 年一样。