C＃动态SQL查询

Question

SqlCommand s2 = new SqlCommand();
s2.CommandText = @"declare @sql nvarchar(max);

set @sql = 'select sys_RespNum from ' + quotename(@tableName) + 'where' + 'respid' + 'in' + '(' + @emails + ')';
exec (@sql);

What's wrong with the code? I get an error:

Incorrect syntax near @emails

Answer 1

you missed space

set @sql = 'select sys_RespNum from ' + quotename(@tableName) + ' where ' + ' respid ' + ' in ' + '( ' + @emails + ' )';
exec (@sql);