DB2 SQLID 在建表时候的作用（求大神指点）

1. Create database
   Set current SQLID= 'XXX'
   Create Datbase 'AAA'

   Create Table
   Set Current SQLID = sysadm
   Create Table XXX.BBB IN AAA
   Commit;
   Set Current SQLID = sysadm
   Create SYNONYM BBB for XXX.BBB
   

2. Create database
   Create Datbase 'AAA'

   Create Table
   Set Current SQLID = XXX
   Create Table XXX.BBB IN AAA
   Commit;
   Set Current SQLID = sysadm
   Create SYNONYM BBB for XXX.BBB
   

这2种建立DB2 database/table 的方法有什么区别吗（Access 和Auth 方面）,一个是SQLID在database这里，一个是SQLID在table这里