Using the INDEXCOLUMNS system table, you can determine the following database information, among other things:
·
All
indexed columns of table HOTEL
SELECT DISTINCT
columnname
FROM DOMAIN.INDEXCOLUMNS
WHERE tablename = 'HOTEL'
·
All
inversions for table RESERVATION, sorted by index, and then by the column
sequence specified during index definition
SELECT indexname,
type, columnname, sort
FROM DOMAIN.INDEXCOLUMNS
WHERE tablename = 'RESERVATION' ORDER BY indexname,
columnno
·
Information about the columns that make up the
index MYINDEX of your own table MYTABLE
SELECT columnname,
sort, datatype, len
FROM DOMAIN.INDEXCOLUMNS
WHERE tablename = 'MYTAB'
AND indexname ='MYINDEX' ORDER BY
columnno
All indexes: see INDEXES