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Finding duplicate values in MySQL
I have a table with a varchar column, and I would like to find all the records that have duplicate values in this column. What is the best query I can use to find the duplicates?
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List of ANSI color escape sequences
On most terminals it is possible to colorize output using the \033 ANSI escape sequence.
5 Answers
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How do I check which version of NumPy I'm using?
How can I check which version of NumPy I'm using?
15 Answers
15
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Deleting an element from an array in PHP
Is there an easy way to delete an element from an array using PHP, such that foreach ($array) no longer includes that element?
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Declaring variables inside a switch statement [duplicate]
I saw a few answers to this issue, and I get it — you can't declare and assign variables inside a switch . But I'm wondering if the following is correct at throwing an error saying
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C++: What is the size of an object of an empty class?
I was wondering what could be the size of an object of an empty class . It surely could not be 0 bytes since it should be possible to reference and point to it like any other object. But, how big is such an object?
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Is Java “pass-by-reference” or “pass-by-value”?
I always thought Java uses pass-by-reference .
81 Answers
81
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Two-dimensional array in Swift
I get so confused about 2D arrays in Swift. Let me describe step by step. And would you please correct me if I am wrong.
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How to use a class from one C# project with another C# project
In the same solution, I have two projects: P1 and P2. How can I make use of a class of P1 in P2?
9 Answers
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Import file size limit in PHPMyAdmin
I have changed all the php.ini parameters I know:
upload_max_filesize , post_max_size .
27 Answers
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