Optimization of the necessary performance for a query.

Hi all

I am facing problem to extract data and insert into another table. I need get all_parts_already and then depending on the result part number, that I need to extract rather than all_parts and insert into all_parts_already.

Examples of data in the tables:

Table all_parts_already:

part part_desc technical company place

1 a TVS B1 engine
1 Av engine TVS B2
1 TVS B3 motor Ab
2 ah TVS B3 engine
2 motor Ap TVS B2


Table all_parts:

technical company
TVS B1 engine
Kim TVS B2
TVS B3 engine
TVS B4 engine
XXXXX TVS B5
TVS B6 engine



C1 in (select distinct parts of all_parts_already where)
technique = "Engine" and
Loop = 'TV' society)

for c2 in (you can choose different place of all_parts where)
technique = "Engine" and
Company = "Flat" and
less
Select the distinct place of all_parts_already where
technique = "Engine" and
Company = "Flat" and
parts = c1.parts) loop

insert into all_parts_already (select c2.place, place_desc, c1.parts and c2.place in the place_master where shares = c1.parts and c2.place = place);

end loop;

end loop;


me data in millions of dollars. A technique can have 1000 pieces. A party may have 500 seats. If the loop runs the creation of many times the delay.

Please tell me how to move forward. I am getting the output I need, but the time needed is too (turn on to days)

Thank you very much

:)

Hi, this is the Oracle Designer forum. You can be better to ask for more at one of the forums of database/sql/plsql

Tags: Oracle Development

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