首先，共享表都可以被其他的session使用，对于共享流表，可以被订阅，但是共享的普通内存表是不可以的。

但是共享的流表是不可以删除、修改其中的数据的，共享的普通内存表是可以的，代码验证如下：

share table(1 2 3 as id, 4 5 6 as value) as table1;
go;
update table1 set id = 7 ; // 成功
delete from table1;  // 成功 

share streamTable(1 2 3 as id, 4 5 6 as value) as table2;
go;
update table2 set id = 7 ; // update table2 set id = 7 => The table is not allowed to update.
delete from table2; // delete from table2 => It is not allowed to delete rows from the specified table.