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Making a select statement faster

EXPERT RESPONSE FROM: Don Burleson

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QUESTION POSED ON: 26 January 2006
I have created a table, Party, and in it there are two main fields, party_code and party_name, and around 2,500 records are available in it. I passed a select statement to select party_name and party_code, but it is too slow in Oracle. What do I have to do to make it faster?

EXPERT RESPONSE

From a pure SQL standpoint, an INSERT statement must:

Acquire an empty block to store the data (from the table's freelist).
Insert and commit the data block.

There are two areas where you can improve Oracle SQL INSERT performance:

Parallelize the inserts (if you have an SMP server).
Use the APPEND hint to ensure that you get an empty data block by raising the high-water mark for the table.

Here is a good article on improving INSERT performance.

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