用concat进行sql server查询

Question

这是hibernate查询我想在sql server上运行它但是concat函数不在sql server中我该怎么做。

strQuery = "from TempData where englishLex=:englishLex and category =:category and language=:language and login=:login and domain=:domain group by (concat(englishlex,category)) ";

Answer 1

方法1：连接两个字符串

SELECT 'FirstName' + ' ' + 'LastName' AS FullName

方法2：连接两个数字

SELECT CAST(1 AS VARCHAR(10)) + 'R' + CAST(2 AS VARCHAR(10))

方法3：连接表列的值

SELECT FirstName + ' ' + LastName
FROM AdventureWorks.Person.Contact