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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I had a similar problem when implementing foreign key
constraints in an Oracle database.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>You do not have to use QTP to get the database set up correctly.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>You can do it all within SQL and I believe you don’t even
have to compile unless you do not have the PDL set up correctly.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Powerhouse plays well with the following setup.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hope this helps.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>; In your dictionary:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>System Options &<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> Century Included &<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> Default Century 20 &<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> Date Separator "/" &<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> Date Format MMDDYYYY &<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> Input Century 19 from Year 50 &<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> Release 0 Version 0
Show &<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> Special Name Characters "-" & ;
characters allowed in field/file names<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> Decimal "." &<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> Generic Retrieval Character "@" &<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> Multiline Heading Character "^" &<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> Picture Substitution Character "^" &<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> Message Substitution Character "^" &<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> </span><span style='font-size:11.0pt;font-family:
"Courier New";color:red'>Null Value Character " " &<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>@if ORACLE<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> </span><span style='font-size:11.0pt;font-family:
"Courier New";color:red'>Shift Upshift &<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>@else<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> Shift Noshift &<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>@endif<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> Default Transaction Model Concurrency &<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'> Default Entry and Find In Consistency &<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>
Select In Concurrency &<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>; In your SQL for each table:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Create table Users<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> (<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> UserId Char(8) Default ' '
Not Null,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> UserName Char(40) Default '
' Not Null,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> ActiveRecord Char(1)
Default ' ' Not Null,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> LanguageId Char(2),<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> UserLocationId Char(8),<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> EmailAddress Char(60) Default
' ' Not Null<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> );<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>; The following lets the database set the null if a blank is
passed in. Therefore no coding changes are required in PH<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>CREATE OR REPLACE TRIGGER br_Users<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> BEFORE INSERT OR UPDATE ON Users<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> REFERENCING NEW AS NEW OLD AS OLD<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> FOR EACH ROW DECLARE<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> BEGIN<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> :NEW.LanguageId := NULLIF(:NEW.LanguageId,'
');<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> :NEW.UserLocationId :=
NULLIF(:NEW.UserLocationId,' ');<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> END;<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>/<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>; Foreign Key Constraints will fail if the value is not a NULL
and does not exist on the master file.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Alter table Users<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> Add Constraint fk_UsersLanguageId<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> Foreign
Key<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> (<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>
LanguageId<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> )<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>
References Languages<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> (<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>
LanguageId<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> ) <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> On Delete
Set Null;<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>; To get your database correct use the following example in SQL.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>ALTER TABLE Users MODIFY (LanguageId Char(2));<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Update Users SET LanguageId = NULLIF(LanguageId,' ');<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>- add the trigger here<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Ken<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> powerh-l-bounces+ken.langendock=rogers.com@lists.sowder.com
[mailto:powerh-l-bounces+ken.langendock=rogers.com@lists.sowder.com] <b>On
Behalf Of </b>Stephen Hulbert<br>
<b>Sent:</b> November 9, 2010 6:37 AM<br>
<b>To:</b> powerh-l@lists.sowder.com<br>
<b>Subject:</b> [Bulk] Is anyone using "DEFAULT DATE IS NULL" in a
database statement?<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Hi listers,<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Ten years
ago, when we moved over to an Oracle back end from CISAM, we made the decision
to keep using zero for dates with no value.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>This is fine
if you only want to use Powerhouse to access the data, but anything else
(including Oracle) complains loudly and at length about invalid dates.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Talking to
Cognos, there’s a “DEFAULT DATE IS NULL” option on the
database statement which <i>entirely transparently</i> translates NULL dates in
the database into zero value dates for consumption by Powerhouse.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Does it work?
Does it work transparently?<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Does anyone
have experience of using it? I guess if you’re using a SQL Server back
end or an ODBC connection you have no choice.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>More
importantly, does anyone have any experience of turning this option on for a
very mature database?<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>The upgrade
path (make columns nullable, use QTP to set them to null, turn option on,
recompile) would seem to be fairly simple, but are there any gotchas?<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Many thanks
in advance,<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Stephen.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>--<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Stephen
Hulbert<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Senior
Analyst Programmer<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>For and on
behalf of<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Littlejohn
LLP<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Direct: 020
7516 2201<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p>
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