inconsistent output ... Is it not permitted to change the value of a tied hash in an each iteration? ... It seems that some values in the tied hash are unaltered and some are altered more than once. ..

What versions do you have? 

print "
perl $]
BerkeleyDB $BerkeleyDB::VERSION
db_version $BerkeleyDB::db_version
";

[download]

This is what i see, double dashes means the iterator goes back sometimes and repeats keys already seen, its a bug you should report it 

$ perl berkeleydb-hash-bug-1166570.pl 1901

perl 5.014001
BerkeleyDB 0.49
db_version 5.1
INITIAL LOAD
LLLL 1901 records

LLLL-WWWWWWWWWWWWWWWWW 895
LLLL-YYYYYYYYYYYYYYYYYYYYYYYYYYYY 73
LLLL-WWWWWWWWWWWWWWWWW-WWWWWWWWWWWWWWWWW 1
LLLL-ZZZZZZ 76
LLLL 856

$ perl berkeleydb-hash-bug-1166570.pl 1902

perl 5.014001
BerkeleyDB 0.49
db_version 5.1
INITIAL LOAD
LLLL 1902 records

LLLL-YYYYYYYYYYYYYYYYYYYYYYYYYYYY 93
LLLL-WWWWWWWWWWWWWWWWW-WWWWWWWWWWWWWWWWW 494
LLLL-WWWWWWWWWWWWWWWWW-WWWWWWWWWWWWWWWWW-WWWWWWWWWWWWWWWWW 1
LLLL-WWWWWWWWWWWWWWWWW 1099
LLLL-YYYYYYYYYYYYYYYYYYYYYYYYYYYY-YYYYYYYYYYYYYYYYYYYYYYYYYYYY 37
LLLL-ZZZZZZ-ZZZZZZ 46
LLLL-ZZZZZZ 95
LLLL 37


$ perl berkeleydb-hash-bug-1166570.pl 1901

perl 5.012002
BerkeleyDB 0.43
db_version 5.1
INITIAL LOAD
LLLL 1901 records

LLLL-WWWWWWWWWWWWWWWWW 895
LLLL-YYYYYYYYYYYYYYYYYYYYYYYYYYYY 73
LLLL-WWWWWWWWWWWWWWWWW-WWWWWWWWWWWWWWWWW 1
LLLL-ZZZZZZ 76
LLLL 856

$ perl berkeleydb-hash-bug-1166570.pl 1902

perl 5.012002
BerkeleyDB 0.43
db_version 5.1
INITIAL LOAD
LLLL 1902 records

LLLL-YYYYYYYYYYYYYYYYYYYYYYYYYYYY 93
LLLL-WWWWWWWWWWWWWWWWW-WWWWWWWWWWWWWWWWW 494
LLLL-WWWWWWWWWWWWWWWWW-WWWWWWWWWWWWWWWWW-WWWWWWWWWWWWWWWWW 1
LLLL-WWWWWWWWWWWWWWWWW 1099
LLLL-YYYYYYYYYYYYYYYYYYYYYYYYYYYY-YYYYYYYYYYYYYYYYYYYYYYYYYYYY 37
LLLL-ZZZZZZ-ZZZZZZ 46
LLLL-ZZZZZZ 95
LLLL 37

[download]

In reply to Re: altering value in tied hash by Anonymous Monk
in thread altering value in tied hash by rlmoe

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