Question

We are trying to create an index on CDX and ADT tables that use the Advantage expression engine.

The code we tried so far looks like this:

CREATE INDEX IDX1 ON TBL1 (STR(SOME_NUMBER_FIELD,6)+DTOS(SOME_DATE_FIELD));

Is it possible to create an index with the expression STR(SOME_NUMBER_FIELD,6)+DTOS(SOME_DATE_FIELD) using SQL?

We tried quoting the expression with double quotes, single quotes and brackets.

Answer 1

You can use the system procedure sp_CreateIndex to do that:

execute procedure sp_CreateIndex( 'test', null, 'idx1',
           'str(empid,6)+dtos(doh)', null, 0, 0 );