re: ser's #1, here's a typical delimited control file.
load data
infile /path/to/delimited_file.da
fields terminated by "," optionally enclosed by '"'
into table YOURTABLE ( COL1, COL2, COL3, COLN )
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Question
How to import data from an ascii delimited file to Oracle tables
How can I place data from a 130,000 record ascii delimited file into a few tables within an Oracle database? The table structure or scheme already exists within a database and a method of importing or placing the data into the database is needed. This problem is well beyond anything I have ever attempted to do, so therefore, as much detail as possible would really help.
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Answers
SQL*Loader is the fastest way to load large amounts of ASCII data into one table. It is possible in some cases to have SQL*Loader load data into multiple tables, but your control file for SQL*Loader then becomes rather complex. I use SQL*Loader for large, but simple data loads where all of the data in the file is going to one table.
For more complex data load scenarios, you either have to:
1. use SQL*LOader to put all of the ASCII data into a "staging" table, then use SQL commands and/or PL\SQL procedures that you write to move the data to your permanenent tables.
or
2. use a PL\SQL procedure you write that uses utl_file to read the ASCII file one line at a time and process each line appropriately.
The utl_file approach requires the most programming effort but is the most flexible.
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by: ser6398Posted on 2002-12-17 at 13:01:28ID: 7597632
2 main ways I know of:
1. Use SQL*Loader. SQL*Loader is a basic tool to load data from flat files into an Oracle database. You specify the file layout and run SQL*Loader to load your data into table(s). If your data is too complex, you might want to load the data into a temporary table first and then write PL/SQL code to load the data from the temporary table into your main tables.
2. Use basic File package in Oracle Forms. This method works, but requires a lot more custom code.