indexing on trex server

[Former Member]

hello everyone, i'm working on search engine services, and i was wondering what exactly is meant by the statement "SES replicates the business objects to the SAP NetWeaver search engine, TREX, for indexing", what do you mean by indexing on the TREX server ? what is the indexing procedure ? and what is the difference between this and normal indexing that takes place on database tables ?

[Former Member]

problem solved

[debasissahoo]

Hi Hitesh,

TREX can handle text from documents in numerous formats like PDF and other languages. It stores the indexes on the filesystem itself.

Follow this link for a basic idea about TREX services & architecture.

http://help.sap.com/saphelp_nw70/helpdata/EN/a4/929d4206b70931e10000000a1550b0/content.htm

Regards,

Debasis.

[Former Member]

ok, but can you tell me the difference between indexing on trex and indexing database tables ?

[Former Member]

>ok, but can you tell me the difference between indexing on trex and indexing database tables ?

It's the same kind of difference as between Google and SQL Server.

Maybe you should learn about basic IT concepts ?

Check Wiki

[http://en.wikipedia.org/wiki/Search_engine]

[http://en.wikipedia.org/wiki/Database_index]

Olivier

[Former Member]

thanks for those links .... now that i know how indexing works i've got a few more questions, this time related to attribute-based search.

My problem is as follows:-

I'm indexing business object SFLIGHT, during indexing i pass values from database tables SFLIGHT and SBOOK, now there are multiple entries in SBOOK for each entry in SFLIGHT. For indexing i need to pass it object ids, so i form the object id from the concatenation of carrid connid and fldate, and for this object id i pass values for bookid and customid.

Now i'm trying to search for attribute customid passing values for attributes carrid connid fldate and bookid, ideally this should return just one value, but it returns all values of customid for all values of bookid for the values passed for carrid connid and fldate.

One solution is to change the object id to concatenation of carrid connid fldate and bookid. But i dont want to change the object id.

Is there anyway i can get just one value for customid in this case.

[Former Member]

Refer these,

http://help.sap.com/saphelp_nwpi71/helpdata/en/43/6031cee92f5f87e10000000a1553f6/content.htm

http://help.sap.com/saphelp_nw70/helpdata/EN/47/20fead47fd0d43e10000000a155369/content.htm

Also

http://www.sdn.sap.com/irj/scn/elearn?rid=/library/uuid/9c78cb90-0201-0010-99a1-e7a7a5532c43&overrid...

Regards,

Ravi

[Former Member]

i've visited those links but they dont explain what exactly is an index on the TREX server.

[sunny_pahuja2]

Hi,

TREX you are using a search engine. So, if you have index server or indexing then searching will be fast.

It is same like index section on a book.

Thanks

Sunny