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Create index on multiple columns
Philippe Gervaise
2016-10-25 23:46:02.0

Can you show how to create an index for several columns ?

For example we got a table pcontrat and we wan't an unique index on 2 columns : cont_empl and cont_contrat. With Access it's OK, but we don't know how to do it with HXTT. We try :

CREATE INDEX IF NOT EXISTS PrimaryKey, PrimaryKey ON pcontrat (cont_empl UNIQUE PRIMARY KEY ASC, cont_contrat ASC)

But it creates two differents indexes ... How to create a composed index ?

Thank you.
Re:Create index on multiple columns
HXTT Support
2016-10-26 07:30:33.0
For instance,
CREATE INDEX XlistJdbc_fid_felement ON test (id , date);
CREATE INDEX XlistJdbc_fid_felement ON test ((id , date) PRIMARY KEY) ;
CREATE INDEX XlistJdbc_fid_felement ON test (id+ date PRIMARY KEY) ;

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