SQL文修改请教！在线，急！！！

[tiyuiui]

SQL2005:
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[spTruncateTable]') AND type in (N'P', N'PC'))
BEGIN
EXEC dbo.sp_executesql @statement = N'create proc [dbo].[spTruncateTable](@tablename varchar(100) )
as
EXEC (''truncate table [dbo].['' +@tablename + '']'')
'
END

SQL Anywhere:
if NOT EXISTS (select * from SYSPROCEDURE where object_id = OBJECT_ID('spTruncateTable')) then
CREATE PROCEDURE spTruncateTable(IN @tablename varchar(100) )
begin
......
end
end if;
请问以上红色部分的这句语句如何修改，谢谢！！！！！

[tiyuiui]

自己顶以下

[tiyuiui]

在顶以下