can any one solve this problem

emp_table(

Cdacno varchar (7) (primary key),

Personal_No varchar (10)(foreign key),

Name varchar (40));

personal_table (

Personal_No varchar (10) (primary key),

Cdacno varchar (7),

Date_Of_Birth date);

unit_master (

Unit id varchar (10) (primary key),

Unit_Name varchar(25),

Unit_Location varchar(25));

Unit_Details_table (

Unit_id varchar (foreign key)

CDA_No varchar(7) foreign key);

rank_table(

Rank_ID numeric(2)(primary key),

Rank_Code numeric(2),

Rank_Name varchar (25));

Rank_Date_table (

Rank_Date__ID numeric NOT NULL,

CDA_No varchar(7) (foreign key),

Rank_ID numeric(2));

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..

Like that if I give per_no I have to get cdacno from emp_table.. .. With
this I have to display rank_name from rank_table ,name from emp_table,
unit_name from unit_master..

And here unit_name is depends on unit_details_table ..and rank_name is
depends on rank_date_table..

Doing these things first it has to check when we r giving cdacno..
whether per_no is null or not.. like this if I give per_no it has to
check cdacno is null or not.

Let me know the solution..

But I written one function to this to get per_no if I give
cdacno......................

Thanks & Regards

Penchal reddy | Software Engineer

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