A relation schema R is in BCNF with respect to a set F of functional dependencies if for all functional dependencies in F+ of the form a->b, where a and b is a subset of R, at least one of the following holds:
* a->b is a trivial functional dependency (b is a subset of a)
* a is a superkey for schema R
How to sort dates in Perl?
Packing and Unpacking.Hi, I want to get output as 0x23400000345....in the below example How to get?i tried out, but unable to get the answer$r=0x234;$t=0x345;$y=pack(L L,$t,$r);$x1=unpack(L!,pack(P,$y));printf("nThe value is $x1"); I didnt get constant output?Write an expression or Perl script to identify the entered IP address is valid or not?
Sort a word "system" in perl/shell without using built in functions output should be emssty?
Write a script to reverse a string without using Perls built in function?
How to find a substring in a string without using substr built in functions, and print the substring found?
Try pattern matching for the following1) 10.111.23.11 2) /root/abc/cde/fgg/ac.xml --> Get file name without extention.3) /root/abc/ac.xml/fgg/ac.xml --> Get file name without extention.4) What does "DIE" meant in PERL?5) chomp6) "This is saturday" --> Print the weekday number.7) 11-2-2009 --> Print the name of the month.8) Reverse the string without using func in C.?
Why do you use only Perl when there a lot of more languages available in market like C, Java?
What is the meaning of rigging?
What is the difference between having a parenthesis after module name and without parenthsis after module name?i.e PackageModule();and PackageModule;
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