Local Temporary table in Oracle 10 (for the scope of Stored Procedure)

Question

I am new to oracle. I need to process large amount of data in stored proc. I am considering using Temporary tables. I am using connection pooling and the application is mult

Answer 1

I used global temporary table recently and it was behaving very unwantedly manner.

I was using temp table to format some complex data in a procedure call and once the data is formatted, pass the data to fron end (Asp.Net). In first call to the procedure, i used to get proper data and any subsequent call used to give me data from last procedure call in addition to current call.

I investigated on net and found out an option to delete rows on commit. I thought that will fix the problem.. guess what ? when i used on commit delete rows option, i always used to get 0 rows from database. so i had to go back to original approach of on commit preserve rows, which preserves the rows even after commiting the transaction.This option clears rows from temp table only after session is terminated. then i found out this post and came to know about the column to track call_id of a session.

I implemented that solution and still it dint fix the problem. then i wrote following statement in my procedure before i starting any processing.

Delete From Temp_table;

Above statemnet made the trick. my front end was using connection pooling and after each procedure call it was commitng the transaction but still keeping the connection in connection pool and subsequent request was using the same connection and hence the database session was not terminated after every call.. Deleting rows from temp table before strating any processing made it work....

It drove me nuts till i found this solution....