Thread: i need solution to this problem

i need solution to this problem

From
"Penchalaiah P."
Date:
<div class="Section1"><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">Hi good morning to all……..</span></font><p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size:10.0pt;
font-family:Arial"> </span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">I have tables like 1) emp_table (personal_no integer (foreign key), cdacno varchar (primary
key),namevarchar);</span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt; 
font-family:Arial">                        </span></font><p class="MsoNormal"
style="margin-left:.5in;text-indent:.5in"><fontface="Arial" size="2"><span
style="font-size:10.0pt;font-family:Arial">2)Rank_table (rank_id varchar (primary key), rank_name
varchar);</span></font><pclass="MsoNormal" style="margin-left:.5in;text-indent:.5in"><font face="Arial" size="2"><span
style="font-size:10.0pt;font-family:Arial"> </span></font><pclass="MsoNormal"
style="margin-left:.5in;text-indent:.5in"><fontface="Arial" size="2"><span
style="font-size:10.0pt;font-family:Arial">3)Rank_date_table (rank_id (foreign key), rank_date date);</span></font><p
class="MsoNormal"style="margin-left:.5in;text-indent:.5in"><font face="Arial" size="2"><span
style="font-size:10.0pt;font-family:Arial"> </span></font><pclass="MsoNormal"
style="margin-left:.5in;text-indent:.5in"><fontface="Arial" size="2"><span
style="font-size:10.0pt;font-family:Arial">4)Unit_table (unit_id varchar (primarykey), unit_name
varchar);</span></font><pclass="MsoNormal" style="margin-left:.5in;text-indent:.5in"><font face="Arial" size="2"><span
style="font-size:10.0pt;font-family:Arial"> </span></font><pclass="MsoNormal"
style="margin-left:.5in;text-indent:.5in"><fontface="Arial" size="2"><span
style="font-size:10.0pt;font-family:Arial">5)Personal_table (per_no varchar (primary key), pername
varchar);</span></font><pclass="MsoNormal" style="margin-left:.5in;text-indent:.5in"><font face="Arial" size="2"><span
style="font-size:10.0pt;font-family:Arial"> </span></font><pclass="MsoNormal"><font face="Arial" size="2"><span
style="font-size:10.0pt;
font-family:Arial">My query is ….if I give cdacno I have to get per_no from personal_table.. With this I have to
displayrank_name from rank_table ,name from emp_table, unit_name from unit_master..</span></font><p
class="MsoNormal"><fontface="Arial" size="2"><span style="font-size:10.0pt; 
font-family:Arial"> </span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">Like that if I give per_no I have to get cdacno from emp_table.. .. With this I have to display
rank_namefrom rank_table ,name from emp_table, unit_name from unit_master..</span></font><p class="MsoNormal"><font
face="Arial"size="2"><span style="font-size:10.0pt; 
font-family:Arial"> </span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">Doing these things first it has to check when we r giving cdacno.. whether  per_no is null or not..
likethis if I give per_no it has to check cdacno is null or not.</span></font><p class="MsoNormal"><font face="Arial"
size="2"><spanstyle="font-size:10.0pt; 
font-family:Arial"> </span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">Let me know the solution..</span></font><p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size:10.0pt;
font-family:Arial">But I written one function to this to get per_no if I give cdacno………………….</span></font><p
class="MsoNormal"><fontface="Arial" size="2"><span style="font-size:10.0pt; 
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Re: i need solution to this problem

From
Ragnar
Date:
On mið, 2006-06-28 at 11:15 +0530, Penchalaiah P. wrote:

> I have tables like 1) emp_table (personal_no integer (foreign key),
> cdacno varchar (primary key),name varchar);

> 2) Rank_table (rank_id varchar (primary key), rank_name varchar);

> 3) Rank_date_table (rank_id (foreign key), rank_date date);

> 4) Unit_table (unit_id varchar (primarykey), unit_name varchar);

> 5) Personal_table (per_no varchar (primary key), pername varchar);

> My query is ….if I give cdacno I have to get per_no from
> personal_table.. With this I have to display rank_name from
> rank_table ,name from emp_table, unit_name from unit_master..

it is not clear what the relationships are between the tables. for
example what is the foreign key to unit_table?

how does the rank connect to emp_table or personal_table?

gnari

> 



Re: i need solution to this problem

From
Richard Broersma Jr
Date:
> > I have tables like 1) emp_table (personal_no integer (foreign key),
> > cdacno varchar (primary key),name varchar);
> 
> > 2) Rank_table (rank_id varchar (primary key), rank_name varchar);
> 
> > 3) Rank_date_table (rank_id (foreign key), rank_date date);
> 
> > 4) Unit_table (unit_id varchar (primarykey), unit_name varchar);
> 
> > 5) Personal_table (per_no varchar (primary key), pername varchar);
> 
> > My query is ….if I give cdacno I have to get per_no from
> > personal_table.. With this I have to display rank_name from
> > rank_table ,name from emp_table, unit_name from unit_master..
> 
> it is not clear what the relationships are between the tables. for
> example what is the foreign key to unit_table?
> 
> how does the rank connect to emp_table or personal_table?

yes.  in addition to this,  it seems that 

emp_table references personal_table 
on personal_no = per_no.

But it is not clear how this is the case when personal_no is an integer and per_no is a varchar.

Regards,

Richard Broersma Jr.