Query not run on initial load

Question

I have an application with several pages. I have made them in the same way, but they act different.
What I have:
One region with a few select lists, and a submit button. The select list has a default value (which is sett identical in all pages in this discussion)
One region with a report, that runs a SQL based on the choices made with the select lists.
My problem is on initial loade, when I haven't made any choices in the select list. The defaults are set as expected. In some of the pages it loads as expected and the report looks nice and in accordance with the default values set in the select list. In some other pages it always starts wit ''No data found' in the report. Even when the select list has the correct defaults, and if I press the submit button the page reloads with the proper report. As far as I can tell I have made the two pages in the same manner.
It also return the expected result the second time you arrive at the page. So if the initial load returned no data found, and you navigate to another page and back again it will show the report with data.
My question is what can prevent the report from getting the proper defaults set and running the query on initial load of the page that is not the case when the page is resubmitted or loaded a second time.

Answer 1

I have looked at it without finding anything. I took an example from one page that has 3 out of 4 regions empty. The booked passenger region has data
This is the log from the initial log:
.00:
0.01: S H O W: application="106" page="1" workspace="" request="" session="716623568740864"
0.01: Language derived from: FLOW_PRIMARY_LANGUAGE, current browser language: en-us
0.01: alter session set nls_language="AMERICAN"
0.01: alter session set nls_territory="AMERICA"
0.01: NLS: CSV charset=WE8MSWIN1252
0.01: ...NLS: Set Decimal separator="."
0.01: ...NLS: Set NLS Group separator=","
0.01: ...NLS: Set date format="DD-MON-RR"
0.01: ...Setting session time_zone to -05:00
0.01: Setting NLS_DATE_FORMAT to application date format: DD-MON-RR
0.01: ...NLS: Set date format="DD-MON-RR"
0.01: NLS: Language=en-us
0.01: Application 106, Authentication: CUSTOM2, Page Template: 2233622453240425
0.01: ...Session ID 716623568740864 can be used
0.01: ...Application session: 716623568740864, user=CFA
0.01: ...Determine if user "OPS" workspace "1065304065321761" can develop application "106" in workspace "1065304065321761"
0.01: ...Check for session expiration:
0.01: Session: Fetch session header information
0.01: ...Metadata: Fetch page attributes for application 106, page 1
0.01: Fetch session state from database
0.02: Branch point: BEFORE_HEADER
0.02: Fetch application meta data
0.02: Setting NLS_DATE_FORMAT to application date format: DD-MON-RR
0.02: ...NLS: Set date format="DD-MON-RR"
0.02: Computation point: BEFORE_HEADER
0.02: Processing point: BEFORE_HEADER
0.03: Show page template header
0.03: Computation point: AFTER_HEADER
0.03: Processing point: AFTER_HEADER
0.03: Region:  
0.03: Item: P1_SHIP COMBOBOX
0.04: Item: P1_DEP_DATE MULTIPLESELECT
0.04: Item: P1_LEG COMBOBOX
0.05: Computation point: BEFORE_BOX_BODY
0.05: ...Perform computation of item: F106_DUMMY, type=FUNCTION_BODY
0.05: ...Performing function body computation
0.06: ...Session State: Save "F106_DUMMY" - saving same value: ""
0.06: Processing point: BEFORE_BOX_BODY
0.06: Region: Message
*0.06: Region: Gender Distribution*
*0.06: Region: Nationality distribution*
0.06: Computation point: AFTER_BOX_BODY
0.06: Processing point: AFTER_BOX_BODY
*0.06: Region: Booked passengers*
*0.07: Region: Age Distribution*
0.07: Computation point: BEFORE_FOOTER
0.07: Processing point: BEFORE_FOOTER
0.07: Region:  
0.07: Item: P0_UPDATED DISPLAY_ONLY_HTML
0.08: Show page tempate footer
0.08: Computation point: AFTER_FOOTER
0.08: Processing point: AFTER_FOOTER
0.08: Log Activity:
0.08: Execute Count=0
0.08: End Show:
This is the log after I press go and I get data in 4 of 4 regions:
0.00: A C C E P T: Request="Go"
0.00: Metadata: Fetch application definition and shortcuts
0.00: NLS: wwv_flow.g_flow_language_derived_from=FLOW_PRIMARY_LANGUAGE: wwv_flow.g_browser_language=en-us
0.01: alter session set nls_language="AMERICAN"
0.01: alter session set nls_territory="AMERICA"
0.01: NLS: CSV charset=WE8MSWIN1252
0.02: ...NLS: Set Decimal separator="."
0.02: ...NLS: Set NLS Group separator=","
0.02: ...NLS: Set date format="DD-MON-RR"
0.02: ...Setting session time_zone to -05:00
0.02: Setting NLS_DATE_FORMAT to application date format: DD-MON-RR
0.02: ...NLS: Set date format="DD-MON-RR"
0.02: Fetch session state from database
0.02: ...Check session 640739340114653 owner
0.02: Setting NLS_DATE_FORMAT to application date format: DD-MON-RR
0.02: ...NLS: Set date format="DD-MON-RR"
0.02: ...Check for session expiration:
0.02: ...Metadata: Fetch Page, Computation, Process, and Branch
0.03: Session: Fetch session header information
0.03: ...Metadata: Fetch page attributes for application 106, page 1
0.03: ...Validate item page affinity.
0.03: ...Validate hidden_protected items.
0.03: ...Check authorization security schemes
0.03: Session State: Save form items and p_arg_values
0.03: ...Session State: Save Item "P1_SHIP" newValue="CFA" "escape_on_input=""
0.03: ...Session State: Save Item "P1_DEP_DATE" newValue="20100414" "escape_on_input="N"
0.03: ...Session State: Save Item "P1_LEG" newValue="All" "escape_on_input=""
0.03: Processing point: ON_SUBMIT_BEFORE_COMPUTATION
0.03: Branch point: BEFORE_COMPUTATION
0.03: Computation point: AFTER_SUBMIT
0.03: Tabs: Perform Branching for Tab Requests
0.03: Branch point: BEFORE_VALIDATION
0.03: Perform validations:
0.03: Branch point: BEFORE_PROCESSING
0.03: Processing point: AFTER_SUBMIT
0.03: Branch point: AFTER_PROCESSING
0.03: ...Evaluating Branch: AFTER_PROCESSING type: "REDIRECT_URL" button: 7515820301908562 branch: (Unconditional)
0.00:
0.00: S H O W: application="106" page="1" workspace="" request="" session="640739340114653"
0.01: Language derived from: FLOW_PRIMARY_LANGUAGE, current browser language: en-us
0.01: alter session set nls_language="AMERICAN"
0.01: alter session set nls_territory="AMERICA"
0.01: NLS: CSV charset=WE8MSWIN1252
0.01: ...NLS: Set Decimal separator="."
0.01: ...NLS: Set NLS Group separator=","
0.01: ...NLS: Set date format="DD-MON-RR"
0.01: ...Setting session time_zone to -05:00
0.01: Setting NLS_DATE_FORMAT to application date format: DD-MON-RR
0.01: ...NLS: Set date format="DD-MON-RR"
0.01: NLS: Language=en-us
0.01: Application 106, Authentication: CUSTOM2, Page Template: 2233622453240425
0.01: ...Session ID 640739340114653 can be used
0.01: ...Application session: 640739340114653, user=CFA
0.01: ...Determine if user "OPS" workspace "1065304065321761" can develop application "106" in workspace "1065304065321761"
0.01: ...Check for session expiration:
0.01: Session: Fetch session header information
0.02: ...Metadata: Fetch page attributes for application 106, page 1
0.02: Fetch session state from database
0.03: Branch point: BEFORE_HEADER
0.03: Fetch application meta data
0.03: Setting NLS_DATE_FORMAT to application date format: DD-MON-RR
0.03: ...NLS: Set date format="DD-MON-RR"
0.03: Computation point: BEFORE_HEADER
0.03: Processing point: BEFORE_HEADER
0.04: Show page template header
0.05: Computation point: AFTER_HEADER
0.05: Processing point: AFTER_HEADER
0.05: Region:  
0.05: Item: P1_SHIP COMBOBOX
0.06: Item: P1_DEP_DATE MULTIPLESELECT
0.06: Item: P1_LEG COMBOBOX
0.06: Computation point: BEFORE_BOX_BODY
0.06: ...Perform computation of item: F106_DUMMY, type=FUNCTION_BODY
0.06: ...Performing function body computation
0.06: ...Session State: Save "F106_DUMMY" - saving same value: ""
0.06: Processing point: BEFORE_BOX_BODY
0.07: Region: Message
0.07: Region: Gender Distribution
0.07: Region: Nationality distribution
0.07: Computation point: AFTER_BOX_BODY
0.07: Processing point: AFTER_BOX_BODY
0.07: Region: Booked passengers
0.07: Region: Age Distribution
0.08: Computation point: BEFORE_FOOTER
0.08: Processing point: BEFORE_FOOTER
0.08: Region:  
0.08: Item: P0_UPDATED DISPLAY_ONLY_HTML
0.08: Show page tempate footer
0.08: Computation point: AFTER_FOOTER
0.08: Processing point: AFTER_FOOTER
0.08: Log Activity:
0.08: Execute Count=0
0.08: End Show: