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Tuesday, June 28, 2011

what are the Maximum sizes allowed for a data base file

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  1. Number of bytes in a record 32 766 bytes
    Number of fields in a record format 8 000 fields
    Number of key fields in a file 120 fields
    Size of key for physical and logical files 32 768 characters1
    Size of key for ORDER BY (SQL) and KEYFLD (OPNQRYF) 10 000 bytes
    Number of records contained in a file member 4 294 967 294 records2
    Number of bytes in a file member 1 869 162 846 624 bytes3
    Number of bytes in an access path 1 099 511 627 776 bytes3 5
    Number of keyed logical files built over a physical file member 3686 files
    Number of physical file members in a logical file member 32 members
    Number of members that can be joined 256 members
    Size of a character or DBCS field 32 766 bytes4
    Size of a zoned decimal or packed decimal field 63 digits
    Maximum number of distinct database files that can be in use at one time ~500 000
    Maximum number of members in a physical or logical file 32 767
    Maximum number of constraints per physical file 300 constraints
    Maximum number of triggers per physical file 300 triggers
    Maximum number of recursive insert and update trigger calls 200

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