什么是@ in Sqlparameter objName = new Sqlparameter（“@ jobfolder”，SqlDbType.Text）(What is @ in Sqlparameter objName = new Sqlparameter (“@jobfolder”, SqlDbType.Text))
什么是@ in Sqlparameter objName = new Sqlparameter ("@jobfolder", SqlDbType.Text)
What is @ in Sqlparameter objName = new Sqlparameter ("@jobfolder", SqlDbType.Text)
最满意答案
@只是sql server识别参数（变量）的方式
您运行的SQL将如下所示：
SELECT * FROM MYTABLE WHERE MYCOLUMN = @jobfolderThe @ is just sql server's way of identifying parameters (variables)
The SQL you are running will look something like this:
SELECT * FROM MYTABLE WHERE MYCOLUMN = @jobfolder更多推荐
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