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How do I check in SQLite whether a table exists?
... the complete query is:
SELECT name FROM sqlite_master WHERE type='table' AND name='{table_name}';
Where {table_name} is the name of the table to check.
Documentation section for reference: Database File Format. 2.6. Storage Of The SQL Database Schema
This will return a list of tables with the...
Fundamental difference between Hashing and Encryption algorithms
...Interviewer wanted the below answer.
Hashing is one way . You can not get convert your data/ string from a hash code.
Encryption is 2 way - you can decrypt again the encrypted string if you have the key with you.
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How do I run a simple bit of code in a new thread?
...o be careful about using the flag, since you did not describe its purpose, and its naming could easily lead one to believe that it does something else than what it actually does.
– Zero3
Sep 23 '16 at 8:44
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How to determine the version of the C++ standard used by the compiler?
How do you determine what version of the C++ standard is implemented by your compiler? As far as I know, below are the standards I've known:
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Call Activity method from adapter
...Adapter in another Activity. Trust me i have spent enough time in industry and I am just trying to help you here, please don't take it personally.
– Varundroid
Dec 13 '14 at 13:30
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How to return a value from __init__ in Python?
... implicit in Python? I assumed Python's semantics were different from Java and the other languages that do use this word.
– cs95
Jul 20 '16 at 6:06
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How can I multiply all items in a list together with Python?
I need to write a function that takes
a list of numbers and multiplies them together. Example:
[1,2,3,4,5,6] will give me 1*2*3*4*5*6 . I could really use your help.
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What are named pipes?
What are they and how do they work?
10 Answers
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What is the difference between Factory and Strategy patterns?
Can any one explain the difference between factory and strategy patterns?
12 Answers
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Get first n characters of a string
...hat's the fastest way to trim a string to a specific number of characters, and append '...' if needed?
19 Answers
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