Efficient method to insert large number of data into table

Question

Hi,
I have a procedure that accepts an input parameter, that contains, a comma seperated values as input.
Something like G12-UHG,THA-90HJ,NS-98039,........There can be more than 90,000 values in that comma seperated input paramter.
What is the most efficient way to do an insert in this case?.
3 methods I have in mind are :
1) Get individual tokens from CSV and use a plain old loop and do an insert.
2) Use BULK COLLECT & FOR ALL. However I don't know how to do this, since input is not from cursor, rather a parameter.
3) Use Table collections. Again this involves plain old looping through the collection. Same as 1st method.
Please do suggest the most efficient method.
Thanks

Answer 1

90,000 values?? Whats the data type of the input parameter?
you can use the string to row conversion trick if you want and do a single insert
SQL> with t as (select 'ABC,DEF GHI,JKL' str from dual)
  2  select regexp_substr(str,'[^,]+', 1, level) list
  3  from t connect by level <= NVL( LENGTH( REGEXP_REPLACE( str, '[^,]+', NULL ) ), 0 ) + 1
  4  /
LIST
ABC
DEF GHI
JKL Edited by: Karthick_Arp on Feb 13, 2009 2:18 AM