Friday 5 July 2013

APEX Create Workspace

Video Link .........

                  http://www.youtube.com/watch?v=Hz4bmwYiqm0

Home --> Administrative Services --> Manage Workspaces --> Create Workspace

Since no where I go seems to have heard of Application Express, I have to demo it (locally) and then convince the DBAs to install it. As such, I do tell them that the APEX Administrator (account) has very powerful privileges, including CREATE TABLESPACE.

I don't think it ever truly registered what this means. In talking to my friend and (current) colleague Daniel McGhan (APEX nerd extraordinaire), he reminded me that when you create a new workspace in APEX that it creates a new tablespace as well (if you don't set "Re-user existing schema?" to "Yes") which means a datafile is also created.



Of course I had to see if for myself:
CJUSTICE@TESTING>SELECT file#, name FROM v$datafile;

     FILE# NAME
---------- ------------------------------------------------------------
         1 /u01/app/oracle/oradata/testing/system01.dbf
         2 /u01/app/oracle/oradata/testing/sysaux01.dbf
         3 /u01/app/oracle/oradata/testing/undotbs01.dbf
         4 /u01/app/oracle/oradata/testing/users01.dbf
         5 /u01/app/oracle/oradata/testing/example01.dbf

5 rows selected.
That's what I currently have. I'll create a new workspace now to demonstrate. Starting from the Manage Workspace page I select Create Workspace:



I give it a name, APEX_TEST:



On Step 2, I set "Re-user existing schema?" to "No"



Step 3:



Step 4, confirming details:



Confirmation page:

CJUSTICE@TESTING>SELECT file#, name FROM v$datafile;

     FILE# NAME
---------- ------------------------------------------------------------
         1 /u01/app/oracle/oradata/testing/system01.dbf
         2 /u01/app/oracle/oradata/testing/sysaux01.dbf
         3 /u01/app/oracle/oradata/testing/undotbs01.dbf
         4 /u01/app/oracle/oradata/testing/users01.dbf
         5 /u01/app/oracle/oradata/testing/example01.dbf
         6 /u01/app/oracle/oradata/testing/FLOW_1172420773490155.dbf

6 rows selected.
As you can see, the datafile FLOW_1172420773490155.dbf was created which is mapped to the like named FLOW_1172420773490155 tablespace.

This can obviously be controlled by selecting "Yes" for "Re-user existing schema?", but I just thought it important enough to point out.

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