Writing Dynamic Insert or Update in Oracle - sql

Question

I am working on an application that will be used to populate the address details of for employees. The address structure will be different for every country.
For the address style mapping I have a table in which I have mapped all the styles.
I have the following requirement:
As shown in the image, I have an address mapping table in which
col1 is for style (wrt country),
col2 for Field_name (The field to be displayed in front end) and
col3 for column_field_name (The name of the column in which the field in col2 will be stored in transaction table.)
![Mapping table Desc][1]
**ADDRESS_STYLE FIELD_NAME COLUMN_FIELD_NAME**
1 US_GLB Address Line1 ADDRESS_LINE1
2 US_GLB Address Line2 ADDRESS_LINE2
3 US_GLB Zip Code POSTAL_CODE
4 US_GLB Tax Zip Code ADD_INFORMATION17
5 US_GLB City TOWN_OR_CITY
6 US_GLB State REGION_2
7 US_GLB Country COUNTRY
8 US_GLB Tax Jurisdiction ADD_INFORMATION15
9 US_GLB Tax Jurisdiction Other ADD_INFORMATION16
10 US_GLB Telephone TELEPHONE_NUMBER_1
11 US_GLB Telephone2 TELEPHONE_NUMBER_2
Now I have to write a procedure or function which will take the all the in parameters
and insert those in my transaction table as they are mapped in mapping table.
For Ex-(As shown above)
Field Address Line1 will be stored in ADDRESS_LINE1 of transaction table.
Field State will be stored in REGION_2 of transaction table.

Answer 1

So in this Proof of Concept I have made two assumptions (maybe three, depends how you count them).
The target ADDRESSES table has an ID column, populated by a sequence.
The column mappings are always in the same order as the columns in the table's projection
and that order is guaranteed by a sort column on the mapping table.
The first is just a guess and easy enough to fit to whatever your actual process is.
The second assumption has major ramifications, because if you haven't been disciplined about how the data is entered into the mapping table this implementation won't work reliably. You'll need to replace the loop with eleven separate lookups for each value of FIELD_NAME. Obviously that would be far too tedious for me to code.
create or replace procedure pop_addr_details
(i_addr_style mapping_table.address_style%type
, i_Address_Line1 in varchar2
, i_Address_Line2 in varchar2
, i_Zip_Code in varchar2
, i_Tax_Zip Code in varchar2
, i_City in varchar2
, i_State in varchar2
, i_Country in varchar2
, i_Tax_Jurisdiction in varchar2
, i_Tax_Jurisdiction Other in varchar2
, i_Telephone in varchar2
, i_Telephone2 in varchar2 )
is
stmt varchar2(32767);
begin
stmt := 'insert into adddresses values (address_id';
for map_rec in ( select column_field_name
from mapping_table
where address_style = i_addr_style
order by col_order )
loop
stmt := stmt || ',' || map_rec.column_field_name;
end loop;
stmt := stmt || ') values ( address_seq.next_val, :1, :2, :3, :4, :5, :6, :7, :8, :9, :10, :11)';
execute immedate stmt using i_Address_Line1
, i_Address_Line2
, i_Zip_Code
, i_Tax_Zip Code
, i_City
, i_State
, i_Country
, i_Tax_Jurisdiction
, i_Tax_Jurisdiction Other
, i_Telephone
, i_Telephone2;
end pop_addr_details;
/
There's a whole chapter on dynamic SQL in the PL/SQL documentation. Find out more.

Answer 2

------------------------------INSERT PROCEDURE-----------------------------
PROCEDURE GHCM_ADDRESS_INSERT_DTLS_PROC(IN_PERSON_ID PLS_INTEGER,
I_ADDR_STYLE VARCHAR2,
IN_ATRRIBUTE1 VARCHAR2,
IN_ATRRIBUTE2 VARCHAR2,
IN_ATRRIBUTE3 VARCHAR2,
IN_ATRRIBUTE4 VARCHAR2,
IN_ATRRIBUTE5 VARCHAR2,
IN_ATRRIBUTE6 VARCHAR2,
IN_ATRRIBUTE7 VARCHAR2,
IN_ATRRIBUTE8 VARCHAR2,
IN_ATRRIBUTE9 VARCHAR2,
IN_ATRRIBUTE10 VARCHAR2,
IN_ATRRIBUTE11 VARCHAR2,
IN_ATRRIBUTE12 VARCHAR2,
IN_ATRRIBUTE13 VARCHAR2,
IN_ATRRIBUTE14 VARCHAR2,
IN_ATRRIBUTE15 VARCHAR2,
IN_ATRRIBUTE16 VARCHAR2,
IN_ATRRIBUTE17 VARCHAR2,
OUT_SUCCESS OUT VARCHAR2)
IS
V_STATEMENT VARCHAR2(1000);
V_SEQ_ID PLS_INTEGER;
BEGIN
V_STATEMENT := 'INSERT INTO PER_ADDRESS_TEST (ADDRESS_ID,STYLE,IN_PERSON_ID';
FOR MAP_REC IN (SELECT COLUMN_FIELD_NAME
FROM GHCM_ADDRESS_STYLE_MAPING_TBL
WHERE STYLE = I_ADDR_STYLE
AND DISPLAY_FLAG = 'Y'
AND ENABLED_FLAG = 'Y'
AND MAPPING_DESC = 'Address Structure'
ORDER BY DISPLAY_ORDER_NO) LOOP
V_STATEMENT := V_STATEMENT || ',' || MAP_REC.COLUMN_FIELD_NAME;
END LOOP;
FOR MAP_REC IN (SELECT DISTINCT (COLUMN_FIELD_NAME)
FROM GHCM_ADDRESS_STYLE_MAPING_TBL
WHERE COLUMN_FIELD_NAME NOT IN
(SELECT COLUMN_FIELD_NAME
FROM GHCM_ADDRESS_STYLE_MAPING_TBL
WHERE STYLE = I_ADDR_STYLE
AND DISPLAY_FLAG = 'Y'
AND ENABLED_FLAG = 'Y'
AND MAPPING_DESC = 'Address Structure')) LOOP
V_STATEMENT := V_STATEMENT || ',' || MAP_REC.COLUMN_FIELD_NAME;
END LOOP;
V_STATEMENT := V_STATEMENT ||
') values ( :1, :2, :3, :4, :5, :6, :7, :8, :9,:10,:11,:12,:13,:14,:15,:16,:17,:18,:19,:20)';
V_SEQ_ID := ADDRESS_SEQ_TEST.NEXTVAL;
EXECUTE IMMEDIATE V_STATEMENT
USING V_SEQ_ID, I_ADDR_STYLE, IN_PERSON_ID, IN_ATRRIBUTE1, IN_ATRRIBUTE2, IN_ATRRIBUTE3, IN_ATRRIBUTE4, IN_ATRRIBUTE5, IN_ATRRIBUTE6, IN_ATRRIBUTE7, IN_ATRRIBUTE8, IN_ATRRIBUTE9, IN_ATRRIBUTE10, IN_ATRRIBUTE11, IN_ATRRIBUTE12, IN_ATRRIBUTE13, IN_ATRRIBUTE14, IN_ATRRIBUTE15, IN_ATRRIBUTE16, IN_ATRRIBUTE17;
COMMIT;
OUT_SUCCESS := 'Y';
END;