Null dates appears as 00.00.0000

Can you help me.
In physical + bussiness layer I have colum of DATE datatype.
But in answers all of null values of this field appears as 00.00.0000. Why? Others DATE field when has NULL values appears as ' ' (empty)

1. Create new analyse: put two columns: col1, col2
2. Open Criteria tab: click on drop down menu on colum: choose 'column properties', open 'Data Format' tab - empty.
3. Open Criteria tab : click on drop down menu on colum col2: choose 'edit formula', open 'column formula' tab - no formula
4. Open Criteria tab : click on drop down menu on colum col2: choose 'Filter', click on Edit Formula - no formula
Edited by: annylut on Jan 24, 2012 11:13 AM

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    line 1  1810794   07/MAR/2013   11/MAR/2013   100     26/MAR/2013   27/MAR/2013 00:00:00
    line 2  1810780   12/MAR/2013   16/MAR/2013   100     23/MAR/2013   27/MAR/2013 00:00:00
    line 3  1810779   17/MAR/2013   20/MAR/2013          
    line 4  1810773   21/MAR/2013   21/MAR/2013   50      24/MAR/2013  
    line 5  1810774   22/MAR/2013   10/APR/2013   93      16/MAR/2013  
    line 6  1810791   11/APR/2013   20/APR/2013          
    line 7  1810793   21/APR/2013   22/APR/2013   45      21/MAR/2013   The accompanying XML backs up the story, yet my query doesn't feed this data.
    <task id="1810794" parent="" name="line 1" actual_start="2013.03.07 00.00.00" actual_end="2013.03.11 00.00.00" baseline_start="2013.03.26 00.00.00" baseline_end="2013.03.27 00.00.00" progress="100" style="defaultStyle"/>
    <task id="1810780" parent="" name="line 2" actual_start="2013.03.12 00.00.00" actual_end="2013.03.16 00.00.00" baseline_start="2013.03.23 00.00.00" baseline_end="2013.03.27 00.00.00" progress="100" style="defaultStyle"/>
    <task id="1810779" parent="" name="line 3" actual_start="2013.03.17 00.00.00" actual_end="2013.03.20 00.00.00" baseline_start="2013.03.23 00.00.00" baseline_end="2013.03.27 00.00.00" style="defaultStyle"/>
    <task id="1810773" parent="" name="line 4" actual_start="2013.03.21 00.00.00" actual_end="2013.03.21 00.00.00" baseline_start="2013.03.24 00.00.00" baseline_end="2013.03.27 00.00.00" progress="50" style="defaultStyle"/>
    <task id="1810774" parent="" name="line 5" actual_start="2013.03.22 00.00.00" actual_end="2013.04.10 00.00.00" baseline_start="2013.03.16 00.00.00" baseline_end="2013.03.27 00.00.00" progress="93" style="defaultStyle"/>
    <task id="1810791" parent="" name="line 6" actual_start="2013.04.11 00.00.00" actual_end="2013.04.20 00.00.00" baseline_start="2013.03.16 00.00.00" baseline_end="2013.03.27 00.00.00" style="defaultStyle"/>
    <task id="1810793" parent="" name="line 7" actual_start="2013.04.21 00.00.00" actual_end="2013.04.22 00.00.00" baseline_start="2013.03.21 00.00.00" baseline_end="2013.03.27 00.00.00" progress="45" style="defaultStyle"/>Is this expected behaviour?
    Is this a bug?
    Is there a workaround - can I supply my own XML to hopefully override what is being generated?
    Scott

    Hi Ahmed
    Thank you for your reply.
    The time scales in Gantt chart specifically shows the year, month and weeks from the start date of project definition or basic start of WBS.
    Since it is not a decided project, the Gantt chart need to show 0, 1st week, 2nd week, 3rd week etc.
    The actual schedule from PD start date can be produced on actual initiation of project.
    It means, i am looking for having Gantt chart for duration and not for specific start and finish dates.
    warm regards
    ramSiva

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