Question

Load Large Flat Files into Oracle

Rating7.6Very Good

Does anyone have any advice for an approach for loading large flat files into Oracle?

We do not have any control on the format of the flat files, so there is alot of manipulation (inserting a defined separator / data manipulation) that needs to be done to the files before we can use SQL Loader to load our tables.

Is there a best way to do this? (Perl, Java, Oracle tool.....)

Thanks for your help!!!!!!!!!

  1. how to find dupicates in a flat file ?
    if there are duplicates in a list of 10 records in a flat file . How to get the list of duplicates after bulk copying into a scrach table ?
  2. How to load 3,8,11,12,13 column pos…
    Hello Forum Members, I want to load type[3rd position],size[8th position],Assignments[11th position],Complex[12th position],Date[13th position] into table test_load. I have a comma delimited flat file: Sym ID,LUN (dec),Type,Protection,RDF,Host Type,Size (GB),Cylinder Count,Assignments,Complex,Date,Device G…
  3. How to load an huge XML file to an Oracle table?
    Dear experts, We are periodically producing very large XML files. We need to load them into an Oracle database. However, sometimes XML files are so large that even we encountered 8 GB XML files. Since XML files are very large, we are unable to use CLOB. How can we load such a larger XML files in to an Oracle efficiently? BR,
  4. How to manipulate and insert records from flat fil…
    Dear All, I have one flat file like: ID name q1 q2 q3 q4 1245 vjda dkda 1 33 2 "won,lost,yet to be decided" 2334 djd ajdjs 0 2 1 gain 2255 dkj fjdjd 1 1 32 loss 7674 dkfj dkjfj 1 34 1 in 8853 dkf fjffds 0 56 0 still not known In PL/SQL block I …
  5. query -- to a flat file
    1. I prepared a query which has 50 columns. its output is say 1000 rows -- 2. these 1000 values shd be passed in a function which returns either true or false. 3. if it is true , i need to print all the columns to flat file currently, i have got a query -- step 1 i have got a function which will return True or false -- step 2 …

Solution

Sign up now to view this solution! It's quick, easy, and secure to subscribe. We will return you to this solution, unlocked, when you’re done.

About this Solution
View This Solution - Start Your 30 Day Free Trial
Zone
General
Tags
files flat java large load
Participating Experts
5
Solution Grade
A

Replies

 
by: brakjoller

All comments and solutions are available to Premium Service Members only. Sign up to view the solution to this question. Already a member? Log in to view this solution.

 
by: rramineni

All comments and solutions are available to Premium Service Members only. Sign up to view the solution to this question. Already a member? Log in to view this solution.

 
by: guptab

All comments and solutions are available to Premium Service Members only. Sign up to view the solution to this question. Already a member? Log in to view this solution.

 
by: Henka

All comments and solutions are available to Premium Service Members only. Sign up to view the solution to this question. Already a member? Log in to view this solution.

 
by:

All comments and solutions are available to Premium Service Members only. Sign up to view the solution to this question. Already a member? Log in to view this solution.

Stay Connected

Oracle Around the Web

The latest Oracle news, tips, and tricks

Oracle Unveils Netra SPARC T3 Servers

New Carrier-Grade Blade and Rackmount Servers Deliver Better Performance, Density and Power Efficiency for the Communications Industry ...

read more

Oracle fixes 21 flaws in Java SE, Java for Business

Oracle is fixing 21 flaws in its Java SE and Java for Business products in its February critical patch update issued this week ...

read more

Obama’s Silicon Valley “Tech Supper”

Why was he there? Who wasn’t invited and why? What did they talk about? Why was he really there? These are the questions being debated ...

read more

Featured Oracle Experts

slightwv

slightwv has answered more than 2,000 Oracle questions and oversees database management within the U.S. Government. Slightwv

sdstuber

A regular presenter at the Collaborate conference, Oracle developer sdstuber is a top expert in PL/SQL and Oracle 9, 10 and 11. sdstuber

Testimonials

What users are saying about our experts

"The Oracle gurus provide answers, solutions and valuable workarounds"

User: schwertner

"Wow! Excellent, valuable explanation. Hats off to you"

User: aseshu70

"Solution worked fantastic and performs excellent! Thanks heaps"

User: klausbrandlhuber

Top Experts

  1. slightwv

    2,000

    0 points yesterday

    Profile

BrowseBecome an Expert