Text for web search? Yes or no?

Hello

I have a DB more then 1.8mil records in a single table... and I would implement full-text search, or some sort of caching for faster Web search...

Let me describe what I have... The table that holds 1.8mil records is made out of 30... clob columns each text held... in fact they are alphabetical columns... so tank of words beginning with "A" are in the first clob... 'B' in the second 'C' in the third and so on...

Search always first by customerID, and CreateDate, which are the two columns indexed, and then CLOB is sought using instr...

Plan of execution was good... but the time research has begun to increase...

So I want to this effect to improve research... by putting in place some sort of caching mechanism...

I read a lot about this and found an example where I would create a table containing unique words and a table for instances of words... but it would be so
do like 1.8mil portal approach 500 words, which would then repeat in articles... so ok, there would be less then 50,000 unique words (in our language), but occurrences would increase substantially the cause every word inside the article should have a link to the table occurrences... so that would be like the folders inside the table 900mil...

Is it possible to have a record both within the single table? And yet do it fast?

Is the only way Oracle full-text search in this situation?

Any suggestions? Someone implement something like this?

Thank you
Kris

Let's start with your version of Oracle. Please specify which version run you because the text capabilities vary considerably between the two versions.
>
I tried to use Oracle Text as suggested... now, if I understand...
CTXCAT - would be great because when new records are added, index is automatically updated... but does not support the CLOB... so not go
>
CTXCAT is a transactional concatenated index that is supposed to optimize research combined on the text and the other columns. Indeed no go for you because it does not support CLOB columns.
>
CONTEXT - supports the CLOB, but I need to explicitly synchronize the index...
There is like 4000 inserts per day... and they all need to be indexed in real time...
>
Not true, at least since 10g: SYNCHRONIZATION parameter (ON COMMIT) makes this type of transactional index (it is automatically synchronized on commit with this set of parameters.)
>
If CTX_DLL. Procedure SYNC_INDEX synchronize all of the table that is now 1.8mil records, this may take some time... so cannot be performed after inserts...
>
It is not, it synchronizes only the data changed since the last synchronization operation.

This CONTEXT is in fact perfectly adapted to your needs (just to rethink these 30 columns in column of a single document and index.) Note that you must regularly maintain index of CTX_DDL planning CONTEXT. OPTIMIZE_INDEX to run during off-peak hours and purge bland/deleted data and rebuild its own bitmaps index internal for better performance. Otherwise, you will see performance degradation that changes to the indexed data accumulate. You might also want to change settings, including the settings of MEMORY, indexing initial because it greatly affects resulting index fragmentation - more memory you give for initial indexing or optimization, the most coherent and the most powerful of the index will be all other things being equal.

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